Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events changes for v3.4 from Ingo Molnar:
- New "hardware based branch profiling" feature both on the kernel and
the tooling side, on CPUs that support it. (modern x86 Intel CPUs
with the 'LBR' hardware feature currently.)
This new feature is basically a sophisticated 'magnifying glass' for
branch execution - something that is pretty difficult to extract from
regular, function histogram centric profiles.
The simplest mode is activated via 'perf record -b', and the result
looks like this in perf report:
$ perf record -b any_call,u -e cycles:u branchy
$ perf report -b --sort=symbol
52.34% [.] main [.] f1
24.04% [.] f1 [.] f3
23.60% [.] f1 [.] f2
0.01% [k] _IO_new_file_xsputn [k] _IO_file_overflow
0.01% [k] _IO_vfprintf_internal [k] _IO_new_file_xsputn
0.01% [k] _IO_vfprintf_internal [k] strchrnul
0.01% [k] __printf [k] _IO_vfprintf_internal
0.01% [k] main [k] __printf
This output shows from/to branch columns and shows the highest
percentage (from,to) jump combinations - i.e. the most likely taken
branches in the system. "branches" can also include function calls
and any other synchronous and asynchronous transitions of the
instruction pointer that are not 'next instruction' - such as system
calls, traps, interrupts, etc.
This feature comes with (hopefully intuitive) flat ascii and TUI
support in perf report.
- Various 'perf annotate' visual improvements for us assembly junkies.
It will now recognize function calls in the TUI and by hitting enter
you can follow the call (recursively) and back, amongst other
improvements.
- Multiple threads/processes recording support in perf record, perf
stat, perf top - which is activated via a comma-list of PIDs:
perf top -p 21483,21485
perf stat -p 21483,21485 -ddd
perf record -p 21483,21485
- Support for per UID views, via the --uid paramter to perf top, perf
report, etc. For example 'perf top --uid mingo' will only show the
tasks that I am running, excluding other users, root, etc.
- Jump label restructurings and improvements - this includes the
factoring out of the (hopefully much clearer) include/linux/static_key.h
generic facility:
struct static_key key = STATIC_KEY_INIT_FALSE;
...
if (static_key_false(&key))
do unlikely code
else
do likely code
...
static_key_slow_inc();
...
static_key_slow_inc();
...
The static_key_false() branch will be generated into the code with as
little impact to the likely code path as possible. the
static_key_slow_*() APIs flip the branch via live kernel code patching.
This facility can now be used more widely within the kernel to
micro-optimize hot branches whose likelihood matches the static-key
usage and fast/slow cost patterns.
- SW function tracer improvements: perf support and filtering support.
- Various hardenings of the perf.data ABI, to make older perf.data's
smoother on newer tool versions, to make new features integrate more
smoothly, to support cross-endian recording/analyzing workflows
better, etc.
- Restructuring of the kprobes code, the splitting out of 'optprobes',
and a corner case bugfix.
- Allow the tracing of kernel console output (printk).
- Improvements/fixes to user-space RDPMC support, allowing user-space
self-profiling code to extract PMU counts without performing any
system calls, while playing nice with the kernel side.
- 'perf bench' improvements
- ... and lots of internal restructurings, cleanups and fixes that made
these features possible. And, as usual this list is incomplete as
there were also lots of other improvements
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (120 commits)
perf report: Fix annotate double quit issue in branch view mode
perf report: Remove duplicate annotate choice in branch view mode
perf/x86: Prettify pmu config literals
perf report: Enable TUI in branch view mode
perf report: Auto-detect branch stack sampling mode
perf record: Add HEADER_BRANCH_STACK tag
perf record: Provide default branch stack sampling mode option
perf tools: Make perf able to read files from older ABIs
perf tools: Fix ABI compatibility bug in print_event_desc()
perf tools: Enable reading of perf.data files from different ABI rev
perf: Add ABI reference sizes
perf report: Add support for taken branch sampling
perf record: Add support for sampling taken branch
perf tools: Add code to support PERF_SAMPLE_BRANCH_STACK
x86/kprobes: Split out optprobe related code to kprobes-opt.c
x86/kprobes: Fix a bug which can modify kernel code permanently
x86/kprobes: Fix instruction recovery on optimized path
perf: Add callback to flush branch_stack on context switch
perf: Disable PERF_SAMPLE_BRANCH_* when not supported
perf/x86: Add LBR software filter support for Intel CPUs
...
diff --git a/Documentation/RCU/RTFP.txt b/Documentation/RCU/RTFP.txt
index c43460d..7c1dfb1 100644
--- a/Documentation/RCU/RTFP.txt
+++ b/Documentation/RCU/RTFP.txt
@@ -1,9 +1,10 @@
-Read the F-ing Papers!
+Read the Fscking Papers!
This document describes RCU-related publications, and is followed by
the corresponding bibtex entries. A number of the publications may
-be found at http://www.rdrop.com/users/paulmck/RCU/.
+be found at http://www.rdrop.com/users/paulmck/RCU/. For others, browsers
+and search engines will usually find what you are looking for.
The first thing resembling RCU was published in 1980, when Kung and Lehman
[Kung80] recommended use of a garbage collector to defer destruction
@@ -160,7 +161,26 @@
[MathieuDesnoyersPhD]. TINY_RCU [PaulEMcKenney2009BloatWatchRCU] made
its appearance, as did expedited RCU [PaulEMcKenney2009expeditedRCU].
The problem of resizeable RCU-protected hash tables may now be on a path
-to a solution [JoshTriplett2009RPHash].
+to a solution [JoshTriplett2009RPHash]. A few academic researchers are now
+using RCU to solve their parallel problems [HariKannan2009DynamicAnalysisRCU].
+
+2010 produced a simpler preemptible-RCU implementation
+based on TREE_RCU [PaulEMcKenney2010SimpleOptRCU], lockdep-RCU
+[PaulEMcKenney2010LockdepRCU], another resizeable RCU-protected hash
+table [HerbertXu2010RCUResizeHash] (this one consuming more memory,
+but allowing arbitrary changes in hash function, as required for DoS
+avoidance in the networking code), realization of the 2009 RCU-protected
+hash table with atomic node move [JoshTriplett2010RPHash], an update on
+the RCU API [PaulEMcKenney2010RCUAPI].
+
+2011 marked the inclusion of Nick Piggin's fully lockless dentry search
+[LinusTorvalds2011Linux2:6:38:rc1:NPigginVFS], an RCU-protected red-black
+tree using software transactional memory to protect concurrent updates
+(strange, but true!) [PhilHoward2011RCUTMRBTree], yet another variant of
+RCU-protected resizeable hash tables [Triplett:2011:RPHash], the 3.0 RCU
+trainwreck [PaulEMcKenney2011RCU3.0trainwreck], and Neil Brown's "Meet the
+Lockers" LWN article [NeilBrown2011MeetTheLockers].
+
Bibtex Entries
@@ -173,6 +193,14 @@
,volume="5"
,number="3"
,pages="354-382"
+,note="Available:
+\url{http://portal.acm.org/citation.cfm?id=320619&dl=GUIDE,}
+[Viewed December 3, 2007]"
+,annotation={
+ Use garbage collector to clean up data after everyone is done with it.
+ .
+ Oldest use of something vaguely resembling RCU that I have found.
+}
}
@techreport{Manber82
@@ -184,6 +212,31 @@
,number="82-01-01"
,month="January"
,pages="28"
+,annotation={
+ .
+ Superseded by Manber84.
+ .
+ Describes concurrent AVL tree implementation. Uses a
+ garbage-collection mechanism to handle concurrent use and deletion
+ of nodes in the tree, but lacks the summary-of-execution-history
+ concept of read-copy locking.
+ .
+ Keeps full list of processes that were active when a given
+ node was to be deleted, and waits until all such processes have
+ -terminated- before allowing this node to be reused. This is
+ not described in great detail -- one could imagine using process
+ IDs for this if the ID space was large enough that overlapping
+ never occurred.
+ .
+ This restriction makes this algorithm unsuitable for use in
+ systems comprised of long-lived processes. It also produces
+ completely unacceptable overhead in systems with large numbers
+ of processes. Finally, it is specific to AVL trees.
+ .
+ Cites Kung80, so not an independent invention, but the first
+ RCU-like usage that does not rely on an automatic garbage
+ collector.
+}
}
@article{Manber84
@@ -195,6 +248,74 @@
,volume="9"
,number="3"
,pages="439-455"
+,annotation={
+ Describes concurrent AVL tree implementation. Uses a
+ garbage-collection mechanism to handle concurrent use and deletion
+ of nodes in the tree, but lacks the summary-of-execution-history
+ concept of read-copy locking.
+ .
+ Keeps full list of processes that were active when a given
+ node was to be deleted, and waits until all such processes have
+ -terminated- before allowing this node to be reused. This is
+ not described in great detail -- one could imagine using process
+ IDs for this if the ID space was large enough that overlapping
+ never occurred.
+ .
+ This restriction makes this algorithm unsuitable for use in
+ systems comprised of long-lived processes. It also produces
+ completely unacceptable overhead in systems with large numbers
+ of processes. Finally, it is specific to AVL trees.
+}
+}
+
+@Conference{RichardRashid87a
+,Author="Richard Rashid and Avadis Tevanian and Michael Young and
+David Golub and Robert Baron and David Black and William Bolosky and
+Jonathan Chew"
+,Title="Machine-Independent Virtual Memory Management for Paged
+Uniprocessor and Multiprocessor Architectures"
+,Booktitle="{2\textsuperscript{nd} Symposium on Architectural Support
+for Programming Languages and Operating Systems}"
+,Publisher="Association for Computing Machinery"
+,Month="October"
+,Year="1987"
+,pages="31-39"
+,Address="Palo Alto, CA"
+,note="Available:
+\url{http://www.cse.ucsc.edu/~randal/221/rashid-machvm.pdf}
+[Viewed February 17, 2005]"
+,annotation={
+ Describes lazy TLB flush, where one waits for each CPU to pass
+ through a scheduling-clock interrupt before reusing a given range
+ of virtual address. Does not describe how one determines that
+ all CPUs have in fact taken such an interrupt, though there are
+ no shortage of straightforward methods for accomplishing this.
+ .
+ Note that it does not make sense to just wait a fixed amount of
+ time, since a given CPU might have interrupts disabled for an
+ extended amount of time.
+}
+}
+
+@article{BarbaraLiskov1988ArgusCACM
+,author = {Barbara Liskov}
+,title = {Distributed programming in {Argus}}
+,journal = {Commun. ACM}
+,volume = {31}
+,number = {3}
+,year = {1988}
+,issn = {0001-0782}
+,pages = {300--312}
+,doi = {http://doi.acm.org/10.1145/42392.42399}
+,publisher = {ACM}
+,address = {New York, NY, USA}
+,annotation= {
+ At the top of page 307: "Conflicts with deposits and withdrawals
+ are necessary if the reported total is to be up to date. They
+ could be avoided by having total return a sum that is slightly
+ out of date." Relies on semantics -- approximate numerical
+ values sometimes OK.
+}
}
@techreport{Hennessy89
@@ -216,6 +337,13 @@
,year="1990"
,number="CS-TR-2222.1"
,month="June"
+,annotation={
+ Concurrent access to skip lists. Has both weak and strong search.
+ Uses concept of ``garbage queue'', but has no real way of cleaning
+ the garbage efficiently.
+ .
+ Appears to be an independent invention of an RCU-like mechanism.
+}
}
@Book{Adams91
@@ -223,20 +351,15 @@
,title="Concurrent Programming, Principles, and Practices"
,Publisher="Benjamin Cummins"
,Year="1991"
+,annotation={
+ Has a few paragraphs describing ``chaotic relaxation'', a
+ numerical analysis technique that allows multiprocessors to
+ avoid synchronization overhead by using possibly-stale data.
+ .
+ Seems like this is descended from yet another independent
+ invention of RCU-like function -- but this is restricted
+ in that reclamation is not necessary.
}
-
-@phdthesis{HMassalinPhD
-,author="H. Massalin"
-,title="Synthesis: An Efficient Implementation of Fundamental Operating
-System Services"
-,school="Columbia University"
-,address="New York, NY"
-,year="1992"
-,annotation="
- Mondo optimizing compiler.
- Wait-free stuff.
- Good advice: defer work to avoid synchronization.
-"
}
@unpublished{Jacobson93
@@ -244,7 +367,13 @@
,title="Avoid Read-Side Locking Via Delayed Free"
,year="1993"
,month="September"
-,note="Verbal discussion"
+,note="private communication"
+,annotation={
+ Use fixed time delay to approximate grace period. Very simple,
+ but subject to random memory corruption under heavy load.
+ .
+ Independent invention of RCU-like mechanism.
+}
}
@Conference{AjuJohn95
@@ -256,6 +385,17 @@
,Year="1995"
,pages="11-23"
,Address="New Orleans, LA"
+,note="Available:
+\url{https://www.usenix.org/publications/library/proceedings/neworl/full_papers/john.a}
+[Viewed October 1, 2010]"
+,annotation={
+ Age vnodes out of the cache, and have a fixed time set by a kernel
+ parameter. Not clear that all races were in fact correctly handled.
+ Used a 20-minute time by default, which would most definitely not
+ be suitable during DoS attacks or virus scans.
+ .
+ Apparently independent invention of RCU-like mechanism.
+}
}
@conference{Pu95a,
@@ -301,31 +441,47 @@
,institution="US Patent and Trademark Office"
,address="Washington, DC"
,year="1995"
-,number="US Patent 5,442,758 (contributed under GPL)"
+,number="US Patent 5,442,758"
,month="August"
+,annotation={
+ Describes the parallel RCU infrastructure. Includes NUMA aspect
+ (structure of bitmap can reflect bus structure of computer system).
+ .
+ Another independent invention of an RCU-like mechanism, but the
+ "real" RCU this time!
+}
}
@techreport{Slingwine97
,author="John D. Slingwine and Paul E. McKenney"
-,title="Method for maintaining data coherency using thread
-activity summaries in a multicomputer system"
+,title="Method for Maintaining Data Coherency Using Thread Activity
+Summaries in a Multicomputer System"
,institution="US Patent and Trademark Office"
,address="Washington, DC"
,year="1997"
-,number="US Patent 5,608,893 (contributed under GPL)"
+,number="US Patent 5,608,893"
,month="March"
+,pages="19"
+,annotation={
+ Describes use of RCU to synchronize data between a pair of
+ SMP/NUMA computer systems.
+}
}
@techreport{Slingwine98
,author="John D. Slingwine and Paul E. McKenney"
-,title="Apparatus and method for achieving reduced overhead
-mutual exclusion and maintaining coherency in a multiprocessor
-system utilizing execution history and thread monitoring"
+,title="Apparatus and Method for Achieving Reduced Overhead Mutual
+Exclusion and Maintaining Coherency in a Multiprocessor System
+Utilizing Execution History and Thread Monitoring"
,institution="US Patent and Trademark Office"
,address="Washington, DC"
,year="1998"
-,number="US Patent 5,727,209 (contributed under GPL)"
+,number="US Patent 5,727,209"
,month="March"
+,annotation={
+ Describes doing an atomic update by copying the data item and
+ then substituting it into the data structure.
+}
}
@Conference{McKenney98
@@ -337,6 +493,15 @@
,Year="1998"
,pages="509-518"
,Address="Las Vegas, NV"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/rclockpdcsproof.pdf}
+[Viewed December 3, 2007]"
+,annotation={
+ Describes and analyzes RCU mechanism in DYNIX/ptx. Describes
+ application to linked list update and log-buffer flushing.
+ Defines 'quiescent state'. Includes both measured and analytic
+ evaluation.
+}
}
@Conference{Gamsa99
@@ -349,18 +514,76 @@
,Year="1999"
,pages="87-100"
,Address="New Orleans, LA"
+,note="Available:
+\url{http://www.usenix.org/events/osdi99/full_papers/gamsa/gamsa.pdf}
+[Viewed August 30, 2006]"
+,annotation={
+ Use of RCU-like facility in K42/Tornado. Another independent
+ invention of RCU.
+ See especially pages 7-9 (Section 5).
+}
+}
+
+@unpublished{RustyRussell2000a
+,Author="Rusty Russell"
+,Title="Re: modular net drivers"
+,month="June"
+,year="2000"
+,day="23"
+,note="Available:
+\url{http://oss.sgi.com/projects/netdev/archive/2000-06/msg00250.html}
+[Viewed April 10, 2006]"
+,annotation={
+ Proto-RCU proposal from Phil Rumpf and Rusty Russell.
+ Yet another independent invention of RCU.
+ Outline of algorithm to unload modules...
+ .
+ Appeared on net-dev mailing list.
+}
+}
+
+@unpublished{RustyRussell2000b
+,Author="Rusty Russell"
+,Title="Re: modular net drivers"
+,month="June"
+,year="2000"
+,day="24"
+,note="Available:
+\url{http://oss.sgi.com/projects/netdev/archive/2000-06/msg00254.html}
+[Viewed April 10, 2006]"
+,annotation={
+ Proto-RCU proposal from Phil Rumpf and Rusty Russell.
+ .
+ Appeared on net-dev mailing list.
+}
+}
+
+@unpublished{McKenney01b
+,Author="Paul E. McKenney and Dipankar Sarma"
+,Title="Read-Copy Update Mutual Exclusion in {Linux}"
+,month="February"
+,year="2001"
+,note="Available:
+\url{http://lse.sourceforge.net/locking/rcu/rcupdate_doc.html}
+[Viewed October 18, 2004]"
+,annotation={
+ Prototypical Linux documentation for RCU.
+}
}
@techreport{Slingwine01
,author="John D. Slingwine and Paul E. McKenney"
-,title="Apparatus and method for achieving reduced overhead
-mutual exclusion and maintaining coherency in a multiprocessor
-system utilizing execution history and thread monitoring"
+,title="Apparatus and Method for Achieving Reduced Overhead Mutual
+Exclusion and Maintaining Coherency in a Multiprocessor System
+Utilizing Execution History and Thread Monitoring"
,institution="US Patent and Trademark Office"
,address="Washington, DC"
,year="2001"
-,number="US Patent 5,219,690 (contributed under GPL)"
+,number="US Patent 6,219,690"
,month="April"
+,annotation={
+ 'Change in mode' aspect of RCU. Can be thought of as a lazy barrier.
+}
}
@Conference{McKenney01a
@@ -372,14 +595,61 @@
,Year="2001"
,note="Available:
\url{http://www.linuxsymposium.org/2001/abstracts/readcopy.php}
-\url{http://www.rdrop.com/users/paulmck/rclock/rclock_OLS.2001.05.01c.pdf}
+\url{http://www.rdrop.com/users/paulmck/RCU/rclock_OLS.2001.05.01c.pdf}
[Viewed June 23, 2004]"
-annotation="
-Described RCU, and presented some patches implementing and using it in
-the Linux kernel.
+,annotation={
+ Described RCU, and presented some patches implementing and using
+ it in the Linux kernel.
+}
+}
+
+@unpublished{McKenney01f
+,Author="Paul E. McKenney"
+,Title="{RFC:} patch to allow lock-free traversal of lists with insertion"
+,month="October"
+,year="2001"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=100259266316456&w=2}
+[Viewed June 23, 2004]"
+,annotation="
+ Memory-barrier and Alpha thread. 100 messages, not too bad...
"
}
+@unpublished{Spraul01
+,Author="Manfred Spraul"
+,Title="Re: {RFC:} patch to allow lock-free traversal of lists with insertion"
+,month="October"
+,year="2001"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=100264675012867&w=2}
+[Viewed June 23, 2004]"
+,annotation="
+ Suggested burying memory barriers in Linux's list-manipulation
+ primitives.
+"
+}
+
+@unpublished{LinusTorvalds2001a
+,Author="Linus Torvalds"
+,Title="{Re:} {[Lse-tech]} {Re:} {RFC:} patch to allow lock-free traversal of lists with insertion"
+,month="October"
+,year="2001"
+,note="Available:
+\url{http://lkml.org/lkml/2001/10/13/105}
+[Viewed August 21, 2004]"
+}
+
+@unpublished{Blanchard02a
+,Author="Anton Blanchard"
+,Title="some RCU dcache and ratcache results"
+,month="March"
+,year="2002"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=101637107412972&w=2}
+[Viewed October 18, 2004]"
+}
+
@Conference{Linder02a
,Author="Hanna Linder and Dipankar Sarma and Maneesh Soni"
,Title="Scalability of the Directory Entry Cache"
@@ -387,6 +657,10 @@
,Month="June"
,Year="2002"
,pages="289-300"
+,annotation="
+ Measured scalability of Linux 2.4 kernel's directory-entry cache
+ (dcache), and measured some scalability enhancements.
+"
}
@Conference{McKenney02a
@@ -400,49 +674,76 @@
,note="Available:
\url{http://www.linux.org.uk/~ajh/ols2002_proceedings.pdf.gz}
[Viewed June 23, 2004]"
-}
-
-@conference{Michael02a
-,author="Maged M. Michael"
-,title="Safe Memory Reclamation for Dynamic Lock-Free Objects Using Atomic
-Reads and Writes"
-,Year="2002"
-,Month="August"
-,booktitle="{Proceedings of the 21\textsuperscript{st} Annual ACM
-Symposium on Principles of Distributed Computing}"
-,pages="21-30"
,annotation="
- Each thread keeps an array of pointers to items that it is
- currently referencing. Sort of an inside-out garbage collection
- mechanism, but one that requires the accessing code to explicitly
- state its needs. Also requires read-side memory barriers on
- most architectures.
+ Presented and compared a number of RCU implementations for the
+ Linux kernel.
"
}
-@conference{Michael02b
-,author="Maged M. Michael"
-,title="High Performance Dynamic Lock-Free Hash Tables and List-Based Sets"
-,Year="2002"
-,Month="August"
-,booktitle="{Proceedings of the 14\textsuperscript{th} Annual ACM
-Symposium on Parallel
-Algorithms and Architecture}"
-,pages="73-82"
+@unpublished{Sarma02a
+,Author="Dipankar Sarma"
+,Title="specweb99: dcache scalability results"
+,month="July"
+,year="2002"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=102645767914212&w=2}
+[Viewed June 23, 2004]"
,annotation="
- Like the title says...
+ Compare fastwalk and RCU for dcache. RCU won.
"
}
-@InProceedings{HerlihyLM02
-,author={Maurice Herlihy and Victor Luchangco and Mark Moir}
-,title="The Repeat Offender Problem: A Mechanism for Supporting Dynamic-Sized,
-Lock-Free Data Structures"
-,booktitle={Proceedings of 16\textsuperscript{th} International
-Symposium on Distributed Computing}
-,year=2002
+@unpublished{Barbieri02
+,Author="Luca Barbieri"
+,Title="Re: {[PATCH]} Initial support for struct {vfs\_cred}"
+,month="August"
+,year="2002"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=103082050621241&w=2}
+[Viewed: June 23, 2004]"
+,annotation="
+ Suggested RCU for vfs\_shared\_cred.
+"
+}
+
+@unpublished{Dickins02a
+,author="Hugh Dickins"
+,title="Use RCU for System-V IPC"
+,year="2002"
,month="October"
-,pages="339-353"
+,note="private communication"
+}
+
+@unpublished{Sarma02b
+,Author="Dipankar Sarma"
+,Title="Some dcache\_rcu benchmark numbers"
+,month="October"
+,year="2002"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=103462075416638&w=2}
+[Viewed June 23, 2004]"
+,annotation="
+ Performance of dcache RCU on kernbench for 16x NUMA-Q and 1x,
+ 2x, and 4x systems. RCU does no harm, and helps on 16x.
+"
+}
+
+@unpublished{LinusTorvalds2003a
+,Author="Linus Torvalds"
+,Title="Re: {[PATCH]} small fixes in brlock.h"
+,month="March"
+,year="2003"
+,note="Available:
+\url{http://lkml.org/lkml/2003/3/9/205}
+[Viewed March 13, 2006]"
+,annotation="
+ Linus suggests replacing brlock with RCU and/or seqlocks:
+ .
+ 'It's entirely possible that the current user could be replaced
+ by RCU and/or seqlocks, and we could get rid of brlocks entirely.'
+ .
+ Steve Hemminger responds by replacing them with RCU.
+"
}
@article{Appavoo03a
@@ -457,6 +758,20 @@
,volume="42"
,number="1"
,pages="60-76"
+,annotation="
+ Use of RCU to enable hot-swapping for autonomic behavior in K42.
+"
+}
+
+@unpublished{Seigh03
+,author="Joseph W. {Seigh II}"
+,title="Read Copy Update"
+,Year="2003"
+,Month="March"
+,note="email correspondence"
+,annotation="
+ Described the relationship of the VM/XA passive serialization to RCU.
+"
}
@Conference{Arcangeli03
@@ -470,6 +785,27 @@
,year="2003"
,month="June"
,pages="297-310"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/rcu.FREENIX.2003.06.14.pdf}
+[Viewed November 21, 2007]"
+,annotation="
+ Compared updated RCU implementations for the Linux kernel, and
+ described System V IPC use of RCU, including order-of-magnitude
+ performance improvements.
+"
+}
+
+@Conference{Soules03a
+,Author="Craig A. N. Soules and Jonathan Appavoo and Kevin Hui and
+Dilma {Da Silva} and Gregory R. Ganger and Orran Krieger and
+Michael Stumm and Robert W. Wisniewski and Marc Auslander and
+Michal Ostrowski and Bryan Rosenburg and Jimi Xenidis"
+,Title="System Support for Online Reconfiguration"
+,Booktitle="Proceedings of the 2003 USENIX Annual Technical Conference"
+,Publisher="USENIX Association"
+,year="2003"
+,month="June"
+,pages="141-154"
}
@article{McKenney03a
@@ -481,6 +817,22 @@
,volume="1"
,number="114"
,pages="18-26"
+,note="Available:
+\url{http://www.linuxjournal.com/article/6993}
+[Viewed November 14, 2007]"
+,annotation="
+ Reader-friendly intro to RCU, with the infamous old-man-and-brat
+ cartoon.
+"
+}
+
+@unpublished{Sarma03a
+,Author="Dipankar Sarma"
+,Title="RCU low latency patches"
+,month="December"
+,year="2003"
+,note="Message ID: 20031222180114.GA2248@in.ibm.com"
+,annotation="dipankar/ct.2004.03.27/RCUll.2003.12.22.patch"
}
@techreport{Friedberg03a
@@ -489,9 +841,14 @@
,institution="US Patent and Trademark Office"
,address="Washington, DC"
,year="2003"
-,number="US Patent 6,662,184 (contributed under GPL)"
+,number="US Patent 6,662,184"
,month="December"
,pages="112"
+,annotation="
+ Applies RCU to a wildcard-search Patricia tree in order to permit
+ synchronization-free lookup. RCU is used to retain removed nodes
+ for a grace period before freeing them.
+"
}
@article{McKenney04a
@@ -503,6 +860,12 @@
,volume="1"
,number="118"
,pages="38-46"
+,note="Available:
+\url{http://www.linuxjournal.com/node/7124}
+[Viewed December 26, 2010]"
+,annotation="
+ Reader friendly intro to dcache and RCU.
+"
}
@Conference{McKenney04b
@@ -514,8 +877,83 @@
,Address="Adelaide, Australia"
,note="Available:
\url{http://www.linux.org.au/conf/2004/abstracts.html#90}
-\url{http://www.rdrop.com/users/paulmck/rclock/lockperf.2004.01.17a.pdf}
+\url{http://www.rdrop.com/users/paulmck/RCU/lockperf.2004.01.17a.pdf}
[Viewed June 23, 2004]"
+,annotation="
+ Compares performance of RCU to that of other locking primitives
+ over a number of CPUs (x86, Opteron, Itanium, and PPC).
+"
+}
+
+@unpublished{Sarma04a
+,Author="Dipankar Sarma"
+,Title="{[PATCH]} {RCU} for low latency (experimental)"
+,month="March"
+,year="2004"
+,note="\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=108003746402892&w=2}"
+,annotation="Head of thread: dipankar/2004.03.23/rcu-low-lat.1.patch"
+}
+
+@unpublished{Sarma04b
+,Author="Dipankar Sarma"
+,Title="Re: {[PATCH]} {RCU} for low latency (experimental)"
+,month="March"
+,year="2004"
+,note="\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=108016474829546&w=2}"
+,annotation="dipankar/rcuth.2004.03.24/rcu-throttle.patch"
+}
+
+@unpublished{Spraul04a
+,Author="Manfred Spraul"
+,Title="[RFC] 0/5 rcu lock update"
+,month="May"
+,year="2004"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=108546407726602&w=2}
+[Viewed June 23, 2004]"
+,annotation="
+ Hierarchical-bitmap patch for RCU infrastructure.
+"
+}
+
+@unpublished{Steiner04a
+,Author="Jack Steiner"
+,Title="Re: [Lse-tech] [RFC, PATCH] 1/5 rcu lock update:
+Add per-cpu batch counter"
+,month="May"
+,year="2004"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=108551764515332&w=2}
+[Viewed June 23, 2004]"
+,annotation={
+ RCU runs reasonably on a 512-CPU SGI using Manfred Spraul's patches,
+ which may be found at:
+ https://lkml.org/lkml/2004/5/20/49 (split vars into cachelines)
+ https://lkml.org/lkml/2004/5/22/114 (cpu_quiet() patch)
+ https://lkml.org/lkml/2004/5/25/24 (0/5)
+ https://lkml.org/lkml/2004/5/25/23 (1/5)
+ https://lkml.org/lkml/2004/5/25/265 (works for Jack)
+ https://lkml.org/lkml/2004/5/25/20 (2/5)
+ https://lkml.org/lkml/2004/5/25/22 (3/5)
+ https://lkml.org/lkml/2004/5/25/19 (4/5)
+ https://lkml.org/lkml/2004/5/25/21 (5/5)
+}
+}
+
+@Conference{Sarma04c
+,Author="Dipankar Sarma and Paul E. McKenney"
+,Title="Making {RCU} Safe for Deep Sub-Millisecond Response
+Realtime Applications"
+,Booktitle="Proceedings of the 2004 USENIX Annual Technical Conference
+(FREENIX Track)"
+,Publisher="USENIX Association"
+,year="2004"
+,month="June"
+,pages="182-191"
+,annotation="
+ Describes and compares a number of modifications to the Linux RCU
+ implementation that make it friendly to realtime applications.
+"
}
@phdthesis{PaulEdwardMcKenneyPhD
@@ -529,17 +967,118 @@
,note="Available:
\url{http://www.rdrop.com/users/paulmck/RCU/RCUdissertation.2004.07.14e1.pdf}
[Viewed October 15, 2004]"
+,annotation="
+ Describes RCU implementations and presents design patterns
+ corresponding to common uses of RCU in several operating-system
+ kernels.
+"
}
-@Conference{Sarma04c
-,Author="Dipankar Sarma and Paul E. McKenney"
-,Title="Making RCU Safe for Deep Sub-Millisecond Response Realtime Applications"
-,Booktitle="Proceedings of the 2004 USENIX Annual Technical Conference
-(FREENIX Track)"
-,Publisher="USENIX Association"
+@unpublished{PaulEMcKenney2004rcu:dereference
+,Author="Dipankar Sarma"
+,Title="{Re: RCU : Abstracted RCU dereferencing [5/5]}"
+,month="August"
,year="2004"
-,month="June"
-,pages="182-191"
+,note="Available:
+\url{http://lkml.org/lkml/2004/8/6/237}
+[Viewed June 8, 2010]"
+,annotation="
+ Introduce rcu_dereference().
+"
+}
+
+@unpublished{JimHouston04a
+,Author="Jim Houston"
+,Title="{[RFC\&PATCH] Alternative {RCU} implementation}"
+,month="August"
+,year="2004"
+,note="Available:
+\url{http://lkml.org/lkml/2004/8/30/87}
+[Viewed February 17, 2005]"
+,annotation="
+ Uses active code in rcu_read_lock() and rcu_read_unlock() to
+ make RCU happen, allowing RCU to function on CPUs that do not
+ receive a scheduling-clock interrupt.
+"
+}
+
+@unpublished{TomHart04a
+,Author="Thomas E. Hart"
+,Title="Master's Thesis: Applying Lock-free Techniques to the {Linux} Kernel"
+,month="October"
+,year="2004"
+,note="Available:
+\url{http://www.cs.toronto.edu/~tomhart/masters_thesis.html}
+[Viewed October 15, 2004]"
+,annotation="
+ Proposes comparing RCU to lock-free methods for the Linux kernel.
+"
+}
+
+@unpublished{Vaddagiri04a
+,Author="Srivatsa Vaddagiri"
+,Title="Subject: [RFC] Use RCU for tcp\_ehash lookup"
+,month="October"
+,year="2004"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?t=109395731700004&r=1&w=2}
+[Viewed October 18, 2004]"
+,annotation="
+ Srivatsa's RCU patch for tcp_ehash lookup.
+"
+}
+
+@unpublished{Thirumalai04a
+,Author="Ravikiran Thirumalai"
+,Title="Subject: [patchset] Lockfree fd lookup 0 of 5"
+,month="October"
+,year="2004"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?t=109144217400003&r=1&w=2}
+[Viewed October 18, 2004]"
+,annotation="
+ Ravikiran's lockfree FD patch.
+"
+}
+
+@unpublished{Thirumalai04b
+,Author="Ravikiran Thirumalai"
+,Title="Subject: Re: [patchset] Lockfree fd lookup 0 of 5"
+,month="October"
+,year="2004"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=109152521410459&w=2}
+[Viewed October 18, 2004]"
+,annotation="
+ Ravikiran's lockfree FD patch.
+"
+}
+
+@unpublished{PaulEMcKenney2004rcu:assign:pointer
+,Author="Paul E. McKenney"
+,Title="{[PATCH 1/3] RCU: \url{rcu_assign_pointer()} removal of memory barriers}"
+,month="October"
+,year="2004"
+,note="Available:
+\url{http://lkml.org/lkml/2004/10/23/241}
+[Viewed June 8, 2010]"
+,annotation="
+ Introduce rcu_assign_pointer().
+"
+}
+
+@unpublished{JamesMorris04a
+,Author="James Morris"
+,Title="{[PATCH 2/3] SELinux} scalability - convert {AVC} to {RCU}"
+,day="15"
+,month="November"
+,year="2004"
+,note="Available:
+\url{http://marc.theaimsgroup.com/?l=linux-kernel&m=110054979416004&w=2}
+[Viewed December 10, 2004]"
+,annotation="
+ James Morris posts Kaigai Kohei's patch to LKML.
+"
}
@unpublished{JamesMorris04b
@@ -550,6 +1089,85 @@
,note="Available:
\url{http://www.livejournal.com/users/james_morris/2153.html}
[Viewed December 10, 2004]"
+,annotation="
+ RCU helps SELinux performance. ;-) Made LWN.
+"
+}
+
+@unpublished{PaulMcKenney2005RCUSemantics
+,Author="Paul E. McKenney and Jonathan Walpole"
+,Title="{RCU} Semantics: A First Attempt"
+,month="January"
+,year="2005"
+,day="30"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/rcu-semantics.2005.01.30a.pdf}
+[Viewed December 6, 2009]"
+,annotation="
+ Early derivation of RCU semantics.
+"
+}
+
+@unpublished{PaulMcKenney2005e
+,Author="Paul E. McKenney"
+,Title="Real-Time Preemption and {RCU}"
+,month="March"
+,year="2005"
+,day="17"
+,note="Available:
+\url{http://lkml.org/lkml/2005/3/17/199}
+[Viewed September 5, 2005]"
+,annotation="
+ First posting showing how RCU can be safely adapted for
+ preemptable RCU read side critical sections.
+"
+}
+
+@unpublished{EsbenNeilsen2005a
+,Author="Esben Neilsen"
+,Title="Re: Real-Time Preemption and {RCU}"
+,month="March"
+,year="2005"
+,day="18"
+,note="Available:
+\url{http://lkml.org/lkml/2005/3/18/122}
+[Viewed March 30, 2006]"
+,annotation="
+ Esben Neilsen suggests read-side suppression of grace-period
+ processing for crude-but-workable realtime RCU. The downside
+ is indefinite grace periods...But this is OK for experimentation
+ and testing.
+"
+}
+
+@unpublished{TomHart05a
+,Author="Thomas E. Hart and Paul E. McKenney and Angela Demke Brown"
+,Title="Efficient Memory Reclamation is Necessary for Fast Lock-Free
+Data Structures"
+,month="March"
+,year="2005"
+,note="Available:
+\url{ftp://ftp.cs.toronto.edu/csrg-technical-reports/515/}
+[Viewed March 4, 2005]"
+,annotation="
+ Comparison of RCU, QBSR, and EBSR. RCU wins for read-mostly
+ workloads. ;-)
+"
+}
+
+@unpublished{JonCorbet2005DeprecateSyncKernel
+,Author="Jonathan Corbet"
+,Title="API change: synchronize_kernel() deprecated"
+,month="May"
+,day="3"
+,year="2005"
+,note="Available:
+\url{http://lwn.net/Articles/134484/}
+[Viewed May 3, 2005]"
+,annotation="
+ Jon Corbet describes deprecation of synchronize_kernel()
+ in favor of synchronize_rcu() and synchronize_sched().
+"
}
@unpublished{PaulMcKenney05a
@@ -568,7 +1186,7 @@
@conference{PaulMcKenney05b
,Author="Paul E. McKenney and Dipankar Sarma"
-,Title="Towards Hard Realtime Response from the Linux Kernel on SMP Hardware"
+,Title="Towards Hard Realtime Response from the {Linux} Kernel on {SMP} Hardware"
,Booktitle="linux.conf.au 2005"
,month="April"
,year="2005"
@@ -578,6 +1196,103 @@
[Viewed May 13, 2005]"
,annotation="
Realtime turns into making RCU yet more realtime friendly.
+ http://lca2005.linux.org.au/Papers/Paul%20McKenney/Towards%20Hard%20Realtime%20Response%20from%20the%20Linux%20Kernel/LKS.2005.04.22a.pdf
+"
+}
+
+@unpublished{PaulEMcKenneyHomePage
+,Author="Paul E. McKenney"
+,Title="{Paul} {E.} {McKenney}"
+,month="May"
+,year="2005"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/}
+[Viewed May 25, 2005]"
+,annotation="
+ Paul McKenney's home page.
+"
+}
+
+@unpublished{PaulEMcKenneyRCUPage
+,Author="Paul E. McKenney"
+,Title="Read-Copy Update {(RCU)}"
+,month="May"
+,year="2005"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU}
+[Viewed May 25, 2005]"
+,annotation="
+ Paul McKenney's RCU page.
+"
+}
+
+@unpublished{JosephSeigh2005a
+,Author="Joseph Seigh"
+,Title="{RCU}+{SMR} (hazard pointers)"
+,month="July"
+,year="2005"
+,note="Personal communication"
+,annotation="
+ Joe Seigh announcing his atomic-ptr-plus project.
+ http://sourceforge.net/projects/atomic-ptr-plus/
+"
+}
+
+@unpublished{JosephSeigh2005b
+,Author="Joseph Seigh"
+,Title="Lock-free synchronization primitives"
+,month="July"
+,day="6"
+,year="2005"
+,note="Available:
+\url{http://sourceforge.net/projects/atomic-ptr-plus/}
+[Viewed August 8, 2005]"
+,annotation="
+ Joe Seigh's atomic-ptr-plus project.
+"
+}
+
+@unpublished{PaulMcKenney2005c
+,Author="Paul E.McKenney"
+,Title="{[RFC,PATCH] RCU} and {CONFIG\_PREEMPT\_RT} sane patch"
+,month="August"
+,day="1"
+,year="2005"
+,note="Available:
+\url{http://lkml.org/lkml/2005/8/1/155}
+[Viewed March 14, 2006]"
+,annotation="
+ First operating counter-based realtime RCU patch posted to LKML.
+"
+}
+
+@unpublished{PaulMcKenney2005d
+,Author="Paul E. McKenney"
+,Title="Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.13-rc4-V0.7.52-01]"
+,month="August"
+,day="8"
+,year="2005"
+,note="Available:
+\url{http://lkml.org/lkml/2005/8/8/108}
+[Viewed March 14, 2006]"
+,annotation="
+ First operating counter-based realtime RCU patch posted to LKML,
+ but fixed so that various unusual combinations of configuration
+ parameters all function properly.
+"
+}
+
+@unpublished{PaulMcKenney2005rcutorture
+,Author="Paul E. McKenney"
+,Title="{[PATCH]} {RCU} torture testing"
+,month="October"
+,day="1"
+,year="2005"
+,note="Available:
+\url{http://lkml.org/lkml/2005/10/1/70}
+[Viewed March 14, 2006]"
+,annotation="
+ First rcutorture patch.
"
}
@@ -591,22 +1306,39 @@
,year="2006"
,day="25-29"
,address="Rhodes, Greece"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/hart_ipdps06.pdf}
+[Viewed April 28, 2008]"
,annotation="
- Compares QSBR (AKA "classic RCU"), HPBR, EBR, and lock-free
- reference counting.
+ Compares QSBR, HPBR, EBR, and lock-free reference counting.
+ http://www.cs.toronto.edu/~tomhart/perflab/ipdps06.tgz
+"
+}
+
+@unpublished{NickPiggin2006radixtree
+,Author="Nick Piggin"
+,Title="[patch 3/3] radix-tree: {RCU} lockless readside"
+,month="June"
+,day="20"
+,year="2006"
+,note="Available:
+\url{http://lkml.org/lkml/2006/6/20/238}
+[Viewed March 25, 2008]"
+,annotation="
+ RCU-protected radix tree.
"
}
@Conference{PaulEMcKenney2006b
,Author="Paul E. McKenney and Dipankar Sarma and Ingo Molnar and
Suparna Bhattacharya"
-,Title="Extending RCU for Realtime and Embedded Workloads"
+,Title="Extending {RCU} for Realtime and Embedded Workloads"
,Booktitle="{Ottawa Linux Symposium}"
,Month="July"
,Year="2006"
,pages="v2 123-138"
,note="Available:
-\url{http://www.linuxsymposium.org/2006/index_2006.php}
+\url{http://www.linuxsymposium.org/2006/view_abstract.php?content_key=184}
\url{http://www.rdrop.com/users/paulmck/RCU/OLSrtRCU.2006.08.11a.pdf}
[Viewed January 1, 2007]"
,annotation="
@@ -614,6 +1346,37 @@
"
}
+@unpublished{WikipediaRCU
+,Author="Paul E. McKenney and Chris Purcell and Algae and Ben Schumin and
+Gaius Cornelius and Qwertyus and Neil Conway and Sbw and Blainster and
+Canis Rufus and Zoicon5 and Anome and Hal Eisen"
+,Title="Read-Copy Update"
+,month="July"
+,day="8"
+,year="2006"
+,note="Available:
+\url{http://en.wikipedia.org/wiki/Read-copy-update}
+[Viewed August 21, 2006]"
+,annotation="
+ Wikipedia RCU page as of July 8 2006.
+"
+}
+
+@Conference{NickPiggin2006LocklessPageCache
+,Author="Nick Piggin"
+,Title="A Lockless Pagecache in Linux---Introduction, Progress, Performance"
+,Booktitle="{Ottawa Linux Symposium}"
+,Month="July"
+,Year="2006"
+,pages="v2 249-254"
+,note="Available:
+\url{http://www.linuxsymposium.org/2006/view_abstract.php?content_key=184}
+[Viewed January 11, 2009]"
+,annotation="
+ Uses RCU-protected radix tree for a lockless page cache.
+"
+}
+
@unpublished{PaulEMcKenney2006c
,Author="Paul E. McKenney"
,Title="Sleepable {RCU}"
@@ -637,29 +1400,301 @@
,day="18"
,year="2006"
,note="Available:
-\url{http://www.nada.kth.se/~snilsson/public/papers/trash/trash.pdf}
-[Viewed February 24, 2007]"
+\url{http://www.nada.kth.se/~snilsson/publications/TRASH/trash.pdf}
+[Viewed March 4, 2011]"
,annotation="
RCU-protected dynamic trie-hash combination.
"
}
-@unpublished{ThomasEHart2007a
-,Author="Thomas E. Hart and Paul E. McKenney and Angela Demke Brown and Jonathan Walpole"
-,Title="Performance of memory reclamation for lockless synchronization"
-,journal="J. Parallel Distrib. Comput."
-,year="2007"
-,note="To appear in J. Parallel Distrib. Comput.
- \url{doi=10.1016/j.jpdc.2007.04.010}"
+@unpublished{ChristophHellwig2006RCU2SRCU
+,Author="Christoph Hellwig"
+,Title="Re: {[-mm PATCH 1/4]} {RCU}: split classic rcu"
+,month="September"
+,day="28"
+,year="2006"
+,note="Available:
+\url{http://lkml.org/lkml/2006/9/28/160}
+[Viewed March 27, 2008]"
+}
+
+@unpublished{PaulEMcKenneyRCUusagePage
+,Author="Paul E. McKenney"
+,Title="{RCU} {Linux} Usage"
+,month="October"
+,year="2006"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/linuxusage.html}
+[Viewed January 14, 2007]"
+,annotation="
+ Paul McKenney's RCU page showing graphs plotting Linux-kernel
+ usage of RCU.
+"
+}
+
+@unpublished{PaulEMcKenneyRCUusageRawDataPage
+,Author="Paul E. McKenney"
+,Title="Read-Copy Update {(RCU)} Usage in {Linux} Kernel"
+,month="October"
+,year="2006"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/linuxusage/rculocktab.html}
+[Viewed January 14, 2007]"
+,annotation="
+ Paul McKenney's RCU page showing Linux usage of RCU in tabular
+ form, with links to corresponding cscope databases.
+"
+}
+
+@unpublished{GauthamShenoy2006RCUrwlock
+,Author="Gautham R. Shenoy"
+,Title="[PATCH 4/5] lock\_cpu\_hotplug: Redesign - Lightweight implementation of lock\_cpu\_hotplug"
+,month="October"
+,year="2006"
+,day=26
+,note="Available:
+\url{http://lkml.org/lkml/2006/10/26/73}
+[Viewed January 26, 2009]"
+,annotation="
+ RCU-based reader-writer lock that allows readers to proceed with
+ no memory barriers or atomic instruction in absence of writers.
+ If writer do show up, readers must of course wait as required by
+ the semantics of reader-writer locking. This is a recursive
+ lock.
+"
+}
+
+@unpublished{JensAxboe2006SlowSRCU
+,Author="Jens Axboe"
+,Title="Re: [patch] cpufreq: mark \url{cpufreq_tsc()} as
+\url{core_initcall_sync}"
+,month="November"
+,year="2006"
+,day=17
+,note="Available:
+\url{http://lkml.org/lkml/2006/11/17/56}
+[Viewed May 28, 2007]"
+,annotation="
+ SRCU's grace periods are too slow for Jens, even after a
+ factor-of-three speedup.
+ Sped-up version of SRCU at http://lkml.org/lkml/2006/11/17/359.
+"
+}
+
+@unpublished{OlegNesterov2006QRCU
+,Author="Oleg Nesterov"
+,Title="Re: [patch] cpufreq: mark {\tt cpufreq\_tsc()} as
+{\tt core\_initcall\_sync}"
+,month="November"
+,year="2006"
+,day=19
+,note="Available:
+\url{http://lkml.org/lkml/2006/11/19/69}
+[Viewed May 28, 2007]"
+,annotation="
+ First cut of QRCU. Expanded/corrected versions followed.
+ Used to be OlegNesterov2007QRCU, now time-corrected.
+"
+}
+
+@unpublished{OlegNesterov2006aQRCU
+,Author="Oleg Nesterov"
+,Title="Re: [RFC, PATCH 1/2] qrcu: {"quick"} srcu implementation"
+,month="November"
+,year="2006"
+,day=30
+,note="Available:
+\url{http://lkml.org/lkml/2006/11/29/330}
+[Viewed November 26, 2008]"
+,annotation="
+ Expanded/corrected version of QRCU.
+ Used to be OlegNesterov2007aQRCU, now time-corrected.
+"
+}
+
+@unpublished{EvgeniyPolyakov2006RCUslowdown
+,Author="Evgeniy Polyakov"
+,Title="Badness in postponing work"
+,month="December"
+,year="2006"
+,day=05
+,note="Available:
+\url{http://www.ioremap.net/node/41}
+[Viewed October 28, 2008]"
+,annotation="
+ Using RCU as a pure delay leads to a 2.5x slowdown in skbs in
+ the Linux kernel.
+"
+}
+
+@inproceedings{ChrisMatthews2006ClusteredObjectsRCU
+,author = {Matthews, Chris and Coady, Yvonne and Appavoo, Jonathan}
+,title = {Portability events: a programming model for scalable system infrastructures}
+,booktitle = {PLOS '06: Proceedings of the 3rd workshop on Programming languages and operating systems}
+,year = {2006}
+,isbn = {1-59593-577-0}
+,pages = {11}
+,location = {San Jose, California}
+,doi = {http://doi.acm.org/10.1145/1215995.1216006}
+,publisher = {ACM}
+,address = {New York, NY, USA}
,annotation={
- Compares QSBR (AKA "classic RCU"), HPBR, EBR, and lock-free
- reference counting. Journal version of ThomasEHart2006a.
+ Uses K42's RCU-like functionality to manage clustered-object
+ lifetimes.
+}}
+
+@article{DilmaDaSilva2006K42
+,author = {Silva, Dilma Da and Krieger, Orran and Wisniewski, Robert W. and Waterland, Amos and Tam, David and Baumann, Andrew}
+,title = {K42: an infrastructure for operating system research}
+,journal = {SIGOPS Oper. Syst. Rev.}
+,volume = {40}
+,number = {2}
+,year = {2006}
+,issn = {0163-5980}
+,pages = {34--42}
+,doi = {http://doi.acm.org/10.1145/1131322.1131333}
+,publisher = {ACM}
+,address = {New York, NY, USA}
+,annotation={
+ Describes relationship of K42 generations to RCU.
+}}
+
+# CoreyMinyard2007list_splice_rcu
+@unpublished{CoreyMinyard2007list:splice:rcu
+,Author="Corey Minyard and Paul E. McKenney"
+,Title="{[PATCH]} add an {RCU} version of list splicing"
+,month="January"
+,year="2007"
+,day=3
+,note="Available:
+\url{http://lkml.org/lkml/2007/1/3/112}
+[Viewed May 28, 2007]"
+,annotation="
+ Patch for list_splice_rcu().
+"
+}
+
+@unpublished{PaulEMcKenney2007rcubarrier
+,Author="Paul E. McKenney"
+,Title="{RCU} and Unloadable Modules"
+,month="January"
+,day="14"
+,year="2007"
+,note="Available:
+\url{http://lwn.net/Articles/217484/}
+[Viewed November 22, 2007]"
+,annotation="
+ LWN article introducing the rcu_barrier() primitive.
+"
+}
+
+@unpublished{PeterZijlstra2007SyncBarrier
+,Author="Peter Zijlstra and Ingo Molnar"
+,Title="{[PATCH 3/7]} barrier: a scalable synchonisation barrier"
+,month="January"
+,year="2007"
+,day=28
+,note="Available:
+\url{http://lkml.org/lkml/2007/1/28/34}
+[Viewed March 27, 2008]"
+,annotation="
+ RCU-like implementation for frequent updaters and rare readers(!).
+ Subsumed into QRCU. Maybe...
+"
+}
+
+@unpublished{PaulEMcKenney2007BoostRCU
+,Author="Paul E. McKenney"
+,Title="Priority-Boosting {RCU} Read-Side Critical Sections"
+,month="February"
+,day="5"
+,year="2007"
+,note="Available:
+\url{http://lwn.net/Articles/220677/}
+Revised:
+\url{http://www.rdrop.com/users/paulmck/RCU/RCUbooststate.2007.04.16a.pdf}
+[Viewed September 7, 2007]"
+,annotation="
+ LWN article introducing RCU priority boosting.
+"
+}
+
+@unpublished{PaulMcKenney2007QRCUpatch
+,Author="Paul E. McKenney"
+,Title="{[PATCH]} {QRCU} with lockless fastpath"
+,month="February"
+,year="2007"
+,day=24
+,note="Available:
+\url{http://lkml.org/lkml/2007/2/25/18}
+[Viewed March 27, 2008]"
+,annotation="
+ Patch for QRCU supplying lock-free fast path.
+"
+}
+
+@article{JonathanAppavoo2007K42RCU
+,author = {Appavoo, Jonathan and Silva, Dilma Da and Krieger, Orran and Auslander, Marc and Ostrowski, Michal and Rosenburg, Bryan and Waterland, Amos and Wisniewski, Robert W. and Xenidis, Jimi and Stumm, Michael and Soares, Livio}
+,title = {Experience distributing objects in an SMMP OS}
+,journal = {ACM Trans. Comput. Syst.}
+,volume = {25}
+,number = {3}
+,year = {2007}
+,issn = {0734-2071}
+,pages = {6/1--6/52}
+,doi = {http://doi.acm.org/10.1145/1275517.1275518}
+,publisher = {ACM}
+,address = {New York, NY, USA}
+,annotation={
+ Role of RCU in K42.
+}}
+
+@conference{RobertOlsson2007Trash
+,Author="Robert Olsson and Stefan Nilsson"
+,Title="{TRASH}: A dynamic {LC}-trie and hash data structure"
+,booktitle="Workshop on High Performance Switching and Routing (HPSR'07)"
+,month="May"
+,year="2007"
+,note="Available:
+\url{http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4281239}
+[Viewed October 1, 2010]"
+,annotation="
+ RCU-protected dynamic trie-hash combination.
+"
+}
+
+@conference{PeterZijlstra2007ConcurrentPagecacheRCU
+,Author="Peter Zijlstra"
+,Title="Concurrent Pagecache"
+,Booktitle="Linux Symposium"
+,month="June"
+,year="2007"
+,address="Ottawa, Canada"
+,note="Available:
+\url{http://ols.108.redhat.com/2007/Reprints/zijlstra-Reprint.pdf}
+[Viewed April 14, 2008]"
+,annotation="
+ Page-cache modifications permitting RCU readers and concurrent
+ updates.
+"
+}
+
+@unpublished{PaulEMcKenney2007whatisRCU
+,Author="Paul E. McKenney"
+,Title="What is {RCU}?"
+,year="2007"
+,month="07"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/whatisRCU.html}
+[Viewed July 6, 2007]"
+,annotation={
+ Describes RCU in Linux kernel.
}
}
@unpublished{PaulEMcKenney2007QRCUspin
,Author="Paul E. McKenney"
-,Title="Using Promela and Spin to verify parallel algorithms"
+,Title="Using {Promela} and {Spin} to verify parallel algorithms"
,month="August"
,day="1"
,year="2007"
@@ -669,6 +1704,50 @@
,annotation="
LWN article describing Promela and spin, and also using Oleg
Nesterov's QRCU as an example (with Paul McKenney's fastpath).
+ Merged patch at: http://lkml.org/lkml/2007/2/25/18
+"
+}
+
+@unpublished{PaulEMcKenney2007WG21DDOatomics
+,Author="Paul E. McKenney and Hans-J. Boehm and Lawrence Crowl"
+,Title="C++ Data-Dependency Ordering: Atomics and Memory Model"
+,month="August"
+,day="3"
+,year="2007"
+,note="Preprint:
+\url{http://open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2664.htm}
+[Viewed December 7, 2009]"
+,annotation="
+ RCU for C++, parts 1 and 2.
+"
+}
+
+@unpublished{PaulEMcKenney2007WG21DDOannotation
+,Author="Paul E. McKenney and Lawrence Crowl"
+,Title="C++ Data-Dependency Ordering: Function Annotation"
+,month="September"
+,day="18"
+,year="2008"
+,note="Preprint:
+\url{http://open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2782.htm}
+[Viewed December 7, 2009]"
+,annotation="
+ RCU for C++, part 2, updated many times.
+"
+}
+
+@unpublished{PaulEMcKenney2007PreemptibleRCUPatch
+,Author="Paul E. McKenney"
+,Title="[PATCH RFC 0/9] {RCU}: Preemptible {RCU}"
+,month="September"
+,day="10"
+,year="2007"
+,note="Available:
+\url{http://lkml.org/lkml/2007/9/10/213}
+[Viewed October 25, 2007]"
+,annotation="
+ Final patch for preemptable RCU to -rt. (Later patches were
+ to mainline, eventually incorporated.)
"
}
@@ -686,10 +1765,46 @@
"
}
+@article{ThomasEHart2007a
+,Author="Thomas E. Hart and Paul E. McKenney and Angela Demke Brown and Jonathan Walpole"
+,Title="Performance of memory reclamation for lockless synchronization"
+,journal="J. Parallel Distrib. Comput."
+,volume={67}
+,number="12"
+,year="2007"
+,issn="0743-7315"
+,pages="1270--1285"
+,doi="http://dx.doi.org/10.1016/j.jpdc.2007.04.010"
+,publisher="Academic Press, Inc."
+,address="Orlando, FL, USA"
+,annotation={
+ Compares QSBR, HPBR, EBR, and lock-free reference counting.
+ Journal version of ThomasEHart2006a.
+}
+}
+
+@unpublished{MathieuDesnoyers2007call:rcu:schedNeeded
+,Author="Mathieu Desnoyers"
+,Title="Re: [patch 1/2] {Linux} Kernel Markers - Support Multiple Probes"
+,month="December"
+,day="20"
+,year="2007"
+,note="Available:
+\url{http://lkml.org/lkml/2007/12/20/244}
+[Viewed March 27, 2008]"
+,annotation="
+ Request for call_rcu_sched() and rcu_barrier_sched().
+"
+}
+
+
########################################################################
#
# "What is RCU?" LWN series.
#
+# http://lwn.net/Articles/262464/ (What is RCU, Fundamentally?)
+# http://lwn.net/Articles/263130/ (What is RCU's Usage?)
+# http://lwn.net/Articles/264090/ (What is RCU's API?)
@unpublished{PaulEMcKenney2007WhatIsRCUFundamentally
,Author="Paul E. McKenney and Jonathan Walpole"
@@ -723,7 +1838,7 @@
3. RCU is a Bulk Reference-Counting Mechanism
4. RCU is a Poor Man's Garbage Collector
5. RCU is a Way of Providing Existence Guarantees
- 6. RCU is a Way of Waiting for Things to Finish
+ 6. RCU is a Way of Waiting for Things to Finish
"
}
@@ -747,20 +1862,96 @@
#
########################################################################
+
+@unpublished{SteveRostedt2008dyntickRCUpatch
+,Author="Steven Rostedt and Paul E. McKenney"
+,Title="{[PATCH]} add support for dynamic ticks and preempt rcu"
+,month="January"
+,day="29"
+,year="2008"
+,note="Available:
+\url{http://lkml.org/lkml/2008/1/29/208}
+[Viewed March 27, 2008]"
+,annotation="
+ Patch that prevents preemptible RCU from unnecessarily waking
+ up dynticks-idle CPUs.
+"
+}
+
+@unpublished{PaulEMcKenney2008LKMLDependencyOrdering
+,Author="Paul E. McKenney"
+,Title="Re: [PATCH 02/22 -v7] Add basic support for gcc profiler instrumentation"
+,month="February"
+,day="1"
+,year="2008"
+,note="Available:
+\url{http://lkml.org/lkml/2008/2/2/255}
+[Viewed October 18, 2008]"
+,annotation="
+ Explanation of compilers violating dependency ordering.
+"
+}
+
+@Conference{PaulEMcKenney2008Beijing
+,Author="Paul E. McKenney"
+,Title="Introducing Technology Into {Linux} Or:
+Introducing your technology Into {Linux} will require introducing a
+lot of {Linux} into your technology!!!"
+,Booktitle="2008 Linux Developer Symposium - China"
+,Publisher="OSS China"
+,Month="February"
+,Year="2008"
+,Address="Beijing, China"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/TechIntroLinux.2008.02.19a.pdf}
+[Viewed August 12, 2008]"
+}
+
+@unpublished{PaulEMcKenney2008dynticksRCU
+,Author="Paul E. McKenney and Steven Rostedt"
+,Title="Integrating and Validating dynticks and Preemptable RCU"
+,month="April"
+,day="24"
+,year="2008"
+,note="Available:
+\url{http://lwn.net/Articles/279077/}
+[Viewed April 24, 2008]"
+,annotation="
+ Describes use of Promela and Spin to validate (and fix!) the
+ dynticks/RCU interface.
+"
+}
+
@article{DinakarGuniguntala2008IBMSysJ
,author="D. Guniguntala and P. E. McKenney and J. Triplett and J. Walpole"
,title="The read-copy-update mechanism for supporting real-time applications on shared-memory multiprocessor systems with {Linux}"
,Year="2008"
-,Month="April"
+,Month="April-June"
,journal="IBM Systems Journal"
,volume="47"
,number="2"
-,pages="@@-@@"
+,pages="221-236"
,annotation="
RCU, realtime RCU, sleepable RCU, performance.
"
}
+@unpublished{LaiJiangshan2008NewClassicAlgorithm
+,Author="Lai Jiangshan"
+,Title="[{RFC}][{PATCH}] rcu classic: new algorithm for callbacks-processing"
+,month="June"
+,day="3"
+,year="2008"
+,note="Available:
+\url{http://lkml.org/lkml/2008/6/2/539}
+[Viewed December 10, 2008]"
+,annotation="
+ Updated RCU classic algorithm. Introduced multi-tailed list
+ for RCU callbacks and also pulling common code into
+ __call_rcu().
+"
+}
+
@article{PaulEMcKenney2008RCUOSR
,author="Paul E. McKenney and Jonathan Walpole"
,title="Introducing technology into the {Linux} kernel: a case study"
@@ -778,6 +1969,52 @@
}
}
+@unpublished{ManfredSpraul2008StateMachineRCU
+,Author="Manfred Spraul"
+,Title="[{RFC}, {PATCH}] state machine based rcu"
+,month="August"
+,day="21"
+,year="2008"
+,note="Available:
+\url{http://lkml.org/lkml/2008/8/21/336}
+[Viewed December 8, 2008]"
+,annotation="
+ State-based RCU. One key thing that this patch does is to
+ separate the dynticks handling of NMIs and IRQs.
+"
+}
+
+@unpublished{ManfredSpraul2008dyntickIRQNMI
+,Author="Manfred Spraul"
+,Title="Re: [{RFC}, {PATCH}] v4 scalable classic {RCU} implementation"
+,month="September"
+,day="6"
+,year="2008"
+,note="Available:
+\url{http://lkml.org/lkml/2008/9/6/86}
+[Viewed December 8, 2008]"
+,annotation="
+ Manfred notes a fix required to my attempt to separate irq
+ and NMI processing for hierarchical RCU's dynticks interface.
+"
+}
+
+@techreport{PaulEMcKenney2008cyclicRCU
+,author="Paul E. McKenney"
+,title="Efficient Support of Consistent Cyclic Search With Read-Copy Update"
+,institution="US Patent and Trademark Office"
+,address="Washington, DC"
+,year="2008"
+,number="US Patent 7,426,511"
+,month="September"
+,pages="23"
+,annotation="
+ Maintains an additional level of indirection to allow
+ readers to confine themselves to the desired snapshot of the
+ data structure. Only permits one update at a time.
+"
+}
+
@unpublished{PaulEMcKenney2008HierarchicalRCU
,Author="Paul E. McKenney"
,Title="Hierarchical {RCU}"
@@ -793,6 +2030,21 @@
"
}
+@unpublished{PaulEMcKenney2009BloatwatchRCU
+,Author="Paul E. McKenney"
+,Title="Re: [PATCH fyi] RCU: the bloatwatch edition"
+,month="January"
+,day="14"
+,year="2009"
+,note="Available:
+\url{http://lkml.org/lkml/2009/1/14/449}
+[Viewed January 15, 2009]"
+,annotation="
+ Small-footprint implementation of RCU for uniprocessor
+ embedded applications -- and also for exposition purposes.
+"
+}
+
@conference{PaulEMcKenney2009MaliciousURCU
,Author="Paul E. McKenney"
,Title="Using a Malicious User-Level {RCU} to Torture {RCU}-Based Algorithms"
@@ -816,15 +2068,17 @@
,year="2009"
,note="Available:
\url{http://lkml.org/lkml/2009/2/5/572}
-\url{git://lttng.org/userspace-rcu.git}
+\url{http://lttng.org/urcu}
[Viewed February 20, 2009]"
,annotation="
Mathieu Desnoyers's user-space RCU implementation.
git://lttng.org/userspace-rcu.git
+ http://lttng.org/cgi-bin/gitweb.cgi?p=userspace-rcu.git
+ http://lttng.org/urcu
"
}
-@unpublished{PaulEMcKenney2009BloatWatchRCU
+@unpublished{PaulEMcKenney2009LWNBloatWatchRCU
,Author="Paul E. McKenney"
,Title="{RCU}: The {Bloatwatch} Edition"
,month="March"
@@ -852,14 +2106,29 @@
"
}
-@unpublished{JoshTriplett2009RPHash
+@unpublished{PaulEMcKenney2009fastRTRCU
+,Author="Paul E. McKenney"
+,Title="[{PATCH} {RFC} -tip 0/4] {RCU} cleanups and simplified preemptable {RCU}"
+,month="July"
+,day="23"
+,year="2009"
+,note="Available:
+\url{http://lkml.org/lkml/2009/7/23/294}
+[Viewed August 15, 2009]"
+,annotation="
+ First posting of simple and fast preemptable RCU.
+"
+}
+
+@InProceedings{JoshTriplett2009RPHash
,Author="Josh Triplett"
,Title="Scalable concurrent hash tables via relativistic programming"
,month="September"
,year="2009"
-,note="Linux Plumbers Conference presentation"
+,booktitle="Linux Plumbers Conference 2009"
,annotation="
RP fun with hash tables.
+ See also JoshTriplett2010RPHash
"
}
@@ -872,4 +2141,323 @@
,note="Available:
\url{http://www.lttng.org/pub/thesis/desnoyers-dissertation-2009-12.pdf}
[Viewed December 9, 2009]"
+,annotation={
+ Chapter 6 (page 97) covers user-level RCU.
+}
+}
+
+@unpublished{RelativisticProgrammingWiki
+,Author="Josh Triplett and Paul E. McKenney and Jonathan Walpole"
+,Title="Relativistic Programming"
+,month="September"
+,year="2009"
+,note="Available:
+\url{http://wiki.cs.pdx.edu/rp/}
+[Viewed December 9, 2009]"
+,annotation="
+ Main Relativistic Programming Wiki.
+"
+}
+
+@conference{PaulEMcKenney2009DeterministicRCU
+,Author="Paul E. McKenney"
+,Title="Deterministic Synchronization in Multicore Systems: the Role of {RCU}"
+,Booktitle="Eleventh Real Time Linux Workshop"
+,month="September"
+,year="2009"
+,address="Dresden, Germany"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/realtime/paper/DetSyncRCU.2009.08.18a.pdf}
+[Viewed January 14, 2009]"
+}
+
+@unpublished{PaulEMcKenney2009HuntingHeisenbugs
+,Author="Paul E. McKenney"
+,Title="Hunting Heisenbugs"
+,month="November"
+,year="2009"
+,day="1"
+,note="Available:
+\url{http://paulmck.livejournal.com/14639.html}
+[Viewed June 4, 2010]"
+,annotation="
+ Day-one bug in Tree RCU that took forever to track down.
+"
+}
+
+@unpublished{MathieuDesnoyers2009defer:rcu
+,Author="Mathieu Desnoyers"
+,Title="Kernel RCU: shrink the size of the struct rcu\_head"
+,month="December"
+,year="2009"
+,note="Available:
+\url{http://lkml.org/lkml/2009/10/18/129}
+[Viewed December 29, 2009]"
+,annotation="
+ Mathieu proposed defer_rcu() with fixed-size per-thread pool
+ of RCU callbacks.
+"
+}
+
+@unpublished{MathieuDesnoyers2009VerifPrePub
+,Author="Mathieu Desnoyers and Paul E. McKenney and Michel R. Dagenais"
+,Title="Multi-Core Systems Modeling for Formal Verification of Parallel Algorithms"
+,month="December"
+,year="2009"
+,note="Submitted to IEEE TPDS"
+,annotation="
+ OOMem model for Mathieu's user-level RCU mechanical proof of
+ correctness.
+"
+}
+
+@unpublished{MathieuDesnoyers2009URCUPrePub
+,Author="Mathieu Desnoyers and Paul E. McKenney and Alan Stern and Michel R. Dagenais and Jonathan Walpole"
+,Title="User-Level Implementations of Read-Copy Update"
+,month="December"
+,year="2010"
+,url=\url{http://www.computer.org/csdl/trans/td/2012/02/ttd2012020375-abs.html}
+,annotation="
+ RCU overview, desiderata, semi-formal semantics, user-level RCU
+ usage scenarios, three classes of RCU implementation, wait-free
+ RCU updates, RCU grace-period batching, update overhead,
+ http://www.rdrop.com/users/paulmck/RCU/urcu-main-accepted.2011.08.30a.pdf
+ http://www.rdrop.com/users/paulmck/RCU/urcu-supp-accepted.2011.08.30a.pdf
+ Superseded by MathieuDesnoyers2012URCU.
+"
+}
+
+@inproceedings{HariKannan2009DynamicAnalysisRCU
+,author = {Kannan, Hari}
+,title = {Ordering decoupled metadata accesses in multiprocessors}
+,booktitle = {MICRO 42: Proceedings of the 42nd Annual IEEE/ACM International Symposium on Microarchitecture}
+,year = {2009}
+,isbn = {978-1-60558-798-1}
+,pages = {381--390}
+,location = {New York, New York}
+,doi = {http://doi.acm.org/10.1145/1669112.1669161}
+,publisher = {ACM}
+,address = {New York, NY, USA}
+,annotation={
+ Uses RCU to protect metadata used in dynamic analysis.
+}}
+
+@conference{PaulEMcKenney2010SimpleOptRCU
+,Author="Paul E. McKenney"
+,Title="Simplicity Through Optimization"
+,Booktitle="linux.conf.au 2010"
+,month="January"
+,year="2010"
+,address="Wellington, New Zealand"
+,note="Available:
+\url{http://www.rdrop.com/users/paulmck/RCU/SimplicityThruOptimization.2010.01.21f.pdf}
+[Viewed October 10, 2010]"
+,annotation="
+ TREE_PREEMPT_RCU optimizations greatly simplified the old
+ PREEMPT_RCU implementation.
+"
+}
+
+@unpublished{PaulEMcKenney2010LockdepRCU
+,Author="Paul E. McKenney"
+,Title="Lockdep-{RCU}"
+,month="February"
+,year="2010"
+,day="1"
+,note="Available:
+\url{https://lwn.net/Articles/371986/}
+[Viewed June 4, 2010]"
+,annotation="
+ CONFIG_PROVE_RCU, or at least an early version.
+"
+}
+
+@unpublished{AviKivity2010KVM2RCU
+,Author="Avi Kivity"
+,Title="[{PATCH} 37/40] {KVM}: Bump maximum vcpu count to 64"
+,month="February"
+,year="2010"
+,note="Available:
+\url{http://www.mail-archive.com/kvm@vger.kernel.org/msg28640.html}
+[Viewed March 20, 2010]"
+,annotation="
+ Use of RCU permits KVM to increase the size of guest OSes from
+ 16 CPUs to 64 CPUs.
+"
+}
+
+@unpublished{HerbertXu2010RCUResizeHash
+,Author="Herbert Xu"
+,Title="bridge: Add core IGMP snooping support"
+,month="February"
+,year="2010"
+,note="Available:
+\url{http://kerneltrap.com/mailarchive/linux-netdev/2010/2/26/6270589}
+[Viewed March 20, 2011]"
+,annotation={
+ Use a pair of list_head structures to support RCU-protected
+ resizable hash tables.
+}}
+
+@article{JoshTriplett2010RPHash
+,author="Josh Triplett and Paul E. McKenney and Jonathan Walpole"
+,title="Scalable Concurrent Hash Tables via Relativistic Programming"
+,journal="ACM Operating Systems Review"
+,year=2010
+,volume=44
+,number=3
+,month="July"
+,annotation={
+ RP fun with hash tables.
+ http://portal.acm.org/citation.cfm?id=1842733.1842750
+}}
+
+@unpublished{PaulEMcKenney2010RCUAPI
+,Author="Paul E. McKenney"
+,Title="The {RCU} {API}, 2010 Edition"
+,month="December"
+,day="8"
+,year="2010"
+,note="Available:
+\url{http://lwn.net/Articles/418853/}
+[Viewed December 8, 2010]"
+,annotation="
+ Includes updated software-engineering features.
+"
+}
+
+@mastersthesis{AndrejPodzimek2010masters
+,author="Andrej Podzimek"
+,title="Read-Copy-Update for OpenSolaris"
+,school="Charles University in Prague"
+,year="2010"
+,note="Available:
+\url{https://andrej.podzimek.org/thesis.pdf}
+[Viewed January 31, 2011]"
+,annotation={
+ Reviews RCU implementations and creates a few for OpenSolaris.
+ Drives quiescent-state detection from RCU read-side primitives,
+ in a manner roughly similar to that of Jim Houston.
+}}
+
+@unpublished{LinusTorvalds2011Linux2:6:38:rc1:NPigginVFS
+,Author="Linus Torvalds"
+,Title="Linux 2.6.38-rc1"
+,month="January"
+,year="2011"
+,note="Available:
+\url{https://lkml.org/lkml/2011/1/18/322}
+[Viewed March 4, 2011]"
+,annotation={
+ "The RCU-based name lookup is at the other end of the spectrum - the
+ absolute anti-gimmick. It's some seriously good stuff, and gets rid of
+ the last main global lock that really tends to hurt some kernel loads.
+ The dentry lock is no longer a big serializing issue. What's really
+ nice about it is that it actually improves performance a lot even for
+ single-threaded loads (on an SMP kernel), because it gets rid of some
+ of the most expensive parts of path component lookup, which was the
+ d_lock on every component lookup. So I'm seeing improvements of 30-50%
+ on some seriously pathname-lookup intensive loads."
+}}
+
+@techreport{JoshTriplett2011RPScalableCorrectOrdering
+,author = {Josh Triplett and Philip W. Howard and Paul E. McKenney and Jonathan Walpole}
+,title = {Scalable Correct Memory Ordering via Relativistic Programming}
+,year = {2011}
+,number = {11-03}
+,institution = {Portland State University}
+,note = {\url{http://www.cs.pdx.edu/pdfs/tr1103.pdf}}
+}
+
+@inproceedings{PhilHoward2011RCUTMRBTree
+,author = {Philip W. Howard and Jonathan Walpole}
+,title = {A Relativistic Enhancement to Software Transactional Memory}
+,booktitle = {Proceedings of the 3rd USENIX conference on Hot topics in parallelism}
+,series = {HotPar'11}
+,year = {2011}
+,location = {Berkeley, CA}
+,pages = {1--6}
+,numpages = {6}
+,url = {http://www.usenix.org/event/hotpar11/tech/final_files/Howard.pdf}
+,publisher = {USENIX Association}
+,address = {Berkeley, CA, USA}
+}
+
+@techreport{PaulEMcKenney2011cyclicparallelRCU
+,author="Paul E. McKenney and Jonathan Walpole"
+,title="Efficient Support of Consistent Cyclic Search With Read-Copy Update and Parallel Updates"
+,institution="US Patent and Trademark Office"
+,address="Washington, DC"
+,year="2011"
+,number="US Patent 7,953,778"
+,month="May"
+,pages="34"
+,annotation="
+ Maintains an array of generation numbers to track in-flight
+ updates and keeps an additional level of indirection to allow
+ readers to confine themselves to the desired snapshot of the
+ data structure.
+"
+}
+
+@inproceedings{Triplett:2011:RPHash
+,author = {Triplett, Josh and McKenney, Paul E. and Walpole, Jonathan}
+,title = {Resizable, Scalable, Concurrent Hash Tables via Relativistic Programming}
+,booktitle = {Proceedings of the 2011 USENIX Annual Technical Conference}
+,month = {June}
+,year = {2011}
+,pages = {145--158}
+,numpages = {14}
+,url={http://www.usenix.org/event/atc11/tech/final_files/atc11_proceedings.pdf}
+,publisher = {The USENIX Association}
+,address = {Portland, OR USA}
+}
+
+@unpublished{PaulEMcKenney2011RCU3.0trainwreck
+,Author="Paul E. McKenney"
+,Title="3.0 and {RCU:} what went wrong"
+,month="July"
+,day="27"
+,year="2011"
+,note="Available:
+\url{http://lwn.net/Articles/453002/}
+[Viewed July 27, 2011]"
+,annotation="
+ Analysis of the RCU trainwreck in Linux kernel 3.0.
+"
+}
+
+@unpublished{NeilBrown2011MeetTheLockers
+,Author="Neil Brown"
+,Title="Meet the Lockers"
+,month="August"
+,day="3"
+,year="2011"
+,note="Available:
+\url{http://lwn.net/Articles/453685/}
+[Viewed September 2, 2011]"
+,annotation="
+ The Locker family as an analogy for locking, reference counting,
+ RCU, and seqlock.
+"
+}
+
+@article{MathieuDesnoyers2012URCU
+,Author="Mathieu Desnoyers and Paul E. McKenney and Alan Stern and Michel R. Dagenais and Jonathan Walpole"
+,Title="User-Level Implementations of Read-Copy Update"
+,journal="IEEE Transactions on Parallel and Distributed Systems"
+,volume={23}
+,year="2012"
+,issn="1045-9219"
+,pages="375-382"
+,doi="http://doi.ieeecomputersociety.org/10.1109/TPDS.2011.159"
+,publisher="IEEE Computer Society"
+,address="Los Alamitos, CA, USA"
+,annotation={
+ RCU overview, desiderata, semi-formal semantics, user-level RCU
+ usage scenarios, three classes of RCU implementation, wait-free
+ RCU updates, RCU grace-period batching, update overhead,
+ http://www.rdrop.com/users/paulmck/RCU/urcu-main-accepted.2011.08.30a.pdf
+ http://www.rdrop.com/users/paulmck/RCU/urcu-supp-accepted.2011.08.30a.pdf
+}
}
diff --git a/Documentation/RCU/checklist.txt b/Documentation/RCU/checklist.txt
index bff2d8b..5c8d749 100644
--- a/Documentation/RCU/checklist.txt
+++ b/Documentation/RCU/checklist.txt
@@ -180,6 +180,20 @@
operations that would not normally be undertaken while a real-time
workload is running.
+ In particular, if you find yourself invoking one of the expedited
+ primitives repeatedly in a loop, please do everyone a favor:
+ Restructure your code so that it batches the updates, allowing
+ a single non-expedited primitive to cover the entire batch.
+ This will very likely be faster than the loop containing the
+ expedited primitive, and will be much much easier on the rest
+ of the system, especially to real-time workloads running on
+ the rest of the system.
+
+ In addition, it is illegal to call the expedited forms from
+ a CPU-hotplug notifier, or while holding a lock that is acquired
+ by a CPU-hotplug notifier. Failing to observe this restriction
+ will result in deadlock.
+
7. If the updater uses call_rcu() or synchronize_rcu(), then the
corresponding readers must use rcu_read_lock() and
rcu_read_unlock(). If the updater uses call_rcu_bh() or
diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt
index 083d88c..523364e 100644
--- a/Documentation/RCU/stallwarn.txt
+++ b/Documentation/RCU/stallwarn.txt
@@ -12,14 +12,38 @@
This kernel configuration parameter defines the period of time
that RCU will wait from the beginning of a grace period until it
issues an RCU CPU stall warning. This time period is normally
- ten seconds.
+ sixty seconds.
-RCU_SECONDS_TILL_STALL_RECHECK
+ This configuration parameter may be changed at runtime via the
+ /sys/module/rcutree/parameters/rcu_cpu_stall_timeout, however
+ this parameter is checked only at the beginning of a cycle.
+ So if you are 30 seconds into a 70-second stall, setting this
+ sysfs parameter to (say) five will shorten the timeout for the
+ -next- stall, or the following warning for the current stall
+ (assuming the stall lasts long enough). It will not affect the
+ timing of the next warning for the current stall.
- This macro defines the period of time that RCU will wait after
- issuing a stall warning until it issues another stall warning
- for the same stall. This time period is normally set to three
- times the check interval plus thirty seconds.
+ Stall-warning messages may be enabled and disabled completely via
+ /sys/module/rcutree/parameters/rcu_cpu_stall_suppress.
+
+CONFIG_RCU_CPU_STALL_VERBOSE
+
+ This kernel configuration parameter causes the stall warning to
+ also dump the stacks of any tasks that are blocking the current
+ RCU-preempt grace period.
+
+RCU_CPU_STALL_INFO
+
+ This kernel configuration parameter causes the stall warning to
+ print out additional per-CPU diagnostic information, including
+ information on scheduling-clock ticks and RCU's idle-CPU tracking.
+
+RCU_STALL_DELAY_DELTA
+
+ Although the lockdep facility is extremely useful, it does add
+ some overhead. Therefore, under CONFIG_PROVE_RCU, the
+ RCU_STALL_DELAY_DELTA macro allows five extra seconds before
+ giving an RCU CPU stall warning message.
RCU_STALL_RAT_DELAY
@@ -64,6 +88,54 @@
This is rare, but does happen from time to time in real life.
+If the CONFIG_RCU_CPU_STALL_INFO kernel configuration parameter is set,
+more information is printed with the stall-warning message, for example:
+
+ INFO: rcu_preempt detected stall on CPU
+ 0: (63959 ticks this GP) idle=241/3fffffffffffffff/0
+ (t=65000 jiffies)
+
+In kernels with CONFIG_RCU_FAST_NO_HZ, even more information is
+printed:
+
+ INFO: rcu_preempt detected stall on CPU
+ 0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 drain=0 . timer=-1
+ (t=65000 jiffies)
+
+The "(64628 ticks this GP)" indicates that this CPU has taken more
+than 64,000 scheduling-clock interrupts during the current stalled
+grace period. If the CPU was not yet aware of the current grace
+period (for example, if it was offline), then this part of the message
+indicates how many grace periods behind the CPU is.
+
+The "idle=" portion of the message prints the dyntick-idle state.
+The hex number before the first "/" is the low-order 12 bits of the
+dynticks counter, which will have an even-numbered value if the CPU is
+in dyntick-idle mode and an odd-numbered value otherwise. The hex
+number between the two "/"s is the value of the nesting, which will
+be a small positive number if in the idle loop and a very large positive
+number (as shown above) otherwise.
+
+For CONFIG_RCU_FAST_NO_HZ kernels, the "drain=0" indicates that the
+CPU is not in the process of trying to force itself into dyntick-idle
+state, the "." indicates that the CPU has not given up forcing RCU
+into dyntick-idle mode (it would be "H" otherwise), and the "timer=-1"
+indicates that the CPU has not recented forced RCU into dyntick-idle
+mode (it would otherwise indicate the number of microseconds remaining
+in this forced state).
+
+
+Multiple Warnings From One Stall
+
+If a stall lasts long enough, multiple stall-warning messages will be
+printed for it. The second and subsequent messages are printed at
+longer intervals, so that the time between (say) the first and second
+message will be about three times the interval between the beginning
+of the stall and the first message.
+
+
+What Causes RCU CPU Stall Warnings?
+
So your kernel printed an RCU CPU stall warning. The next question is
"What caused it?" The following problems can result in RCU CPU stall
warnings:
@@ -128,4 +200,5 @@
that portion of the stack which remains the same from trace to trace.
If you can reliably trigger the stall, ftrace can be quite helpful.
-RCU bugs can often be debugged with the help of CONFIG_RCU_TRACE.
+RCU bugs can often be debugged with the help of CONFIG_RCU_TRACE
+and with RCU's event tracing.
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index d67068d..375d3fb 100644
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -69,6 +69,13 @@
CPU-hotplug operations regardless of what value is
specified for onoff_interval.
+onoff_holdoff The number of seconds to wait until starting CPU-hotplug
+ operations. This would normally only be used when
+ rcutorture was built into the kernel and started
+ automatically at boot time, in which case it is useful
+ in order to avoid confusing boot-time code with CPUs
+ coming and going.
+
shuffle_interval
The number of seconds to keep the test threads affinitied
to a particular subset of the CPUs, defaults to 3 seconds.
@@ -79,6 +86,24 @@
zero, which disables test termination and system shutdown.
This capability is useful for automated testing.
+stall_cpu The number of seconds that a CPU should be stalled while
+ within both an rcu_read_lock() and a preempt_disable().
+ This stall happens only once per rcutorture run.
+ If you need multiple stalls, use modprobe and rmmod to
+ repeatedly run rcutorture. The default for stall_cpu
+ is zero, which prevents rcutorture from stalling a CPU.
+
+ Note that attempts to rmmod rcutorture while the stall
+ is ongoing will hang, so be careful what value you
+ choose for this module parameter! In addition, too-large
+ values for stall_cpu might well induce failures and
+ warnings in other parts of the kernel. You have been
+ warned!
+
+stall_cpu_holdoff
+ The number of seconds to wait after rcutorture starts
+ before stalling a CPU. Defaults to 10 seconds.
+
stat_interval The number of seconds between output of torture
statistics (via printk()). Regardless of the interval,
statistics are printed when the module is unloaded.
@@ -271,11 +296,13 @@
#!/bin/sh
modprobe rcutorture
- sleep 100
+ sleep 3600
rmmod rcutorture
dmesg | grep torture:
The output can be manually inspected for the error flag of "!!!".
One could of course create a more elaborate script that automatically
-checked for such errors. The "rmmod" command forces a "SUCCESS" or
-"FAILURE" indication to be printk()ed.
+checked for such errors. The "rmmod" command forces a "SUCCESS",
+"FAILURE", or "RCU_HOTPLUG" indication to be printk()ed. The first
+two are self-explanatory, while the last indicates that while there
+were no RCU failures, CPU-hotplug problems were detected.
diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt
index 49587ab..f6f15ce 100644
--- a/Documentation/RCU/trace.txt
+++ b/Documentation/RCU/trace.txt
@@ -33,23 +33,23 @@
The output of "cat rcu/rcudata" looks as follows:
rcu_sched:
- 0 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=545/1/0 df=50 of=0 ri=0 ql=163 qs=NRW. kt=0/W/0 ktl=ebc3 b=10 ci=153737 co=0 ca=0
- 1 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=967/1/0 df=58 of=0 ri=0 ql=634 qs=NRW. kt=0/W/1 ktl=58c b=10 ci=191037 co=0 ca=0
- 2 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=1081/1/0 df=175 of=0 ri=0 ql=74 qs=N.W. kt=0/W/2 ktl=da94 b=10 ci=75991 co=0 ca=0
- 3 c=20942 g=20943 pq=1 pgp=20942 qp=1 dt=1846/0/0 df=404 of=0 ri=0 ql=0 qs=.... kt=0/W/3 ktl=d1cd b=10 ci=72261 co=0 ca=0
- 4 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=369/1/0 df=83 of=0 ri=0 ql=48 qs=N.W. kt=0/W/4 ktl=e0e7 b=10 ci=128365 co=0 ca=0
- 5 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=381/1/0 df=64 of=0 ri=0 ql=169 qs=NRW. kt=0/W/5 ktl=fb2f b=10 ci=164360 co=0 ca=0
- 6 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=1037/1/0 df=183 of=0 ri=0 ql=62 qs=N.W. kt=0/W/6 ktl=d2ad b=10 ci=65663 co=0 ca=0
- 7 c=20897 g=20897 pq=1 pgp=20896 qp=0 dt=1572/0/0 df=382 of=0 ri=0 ql=0 qs=.... kt=0/W/7 ktl=cf15 b=10 ci=75006 co=0 ca=0
+ 0 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=545/1/0 df=50 of=0 ql=163 qs=NRW. kt=0/W/0 ktl=ebc3 b=10 ci=153737 co=0 ca=0
+ 1 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=967/1/0 df=58 of=0 ql=634 qs=NRW. kt=0/W/1 ktl=58c b=10 ci=191037 co=0 ca=0
+ 2 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=1081/1/0 df=175 of=0 ql=74 qs=N.W. kt=0/W/2 ktl=da94 b=10 ci=75991 co=0 ca=0
+ 3 c=20942 g=20943 pq=1 pgp=20942 qp=1 dt=1846/0/0 df=404 of=0 ql=0 qs=.... kt=0/W/3 ktl=d1cd b=10 ci=72261 co=0 ca=0
+ 4 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=369/1/0 df=83 of=0 ql=48 qs=N.W. kt=0/W/4 ktl=e0e7 b=10 ci=128365 co=0 ca=0
+ 5 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=381/1/0 df=64 of=0 ql=169 qs=NRW. kt=0/W/5 ktl=fb2f b=10 ci=164360 co=0 ca=0
+ 6 c=20972 g=20973 pq=1 pgp=20973 qp=0 dt=1037/1/0 df=183 of=0 ql=62 qs=N.W. kt=0/W/6 ktl=d2ad b=10 ci=65663 co=0 ca=0
+ 7 c=20897 g=20897 pq=1 pgp=20896 qp=0 dt=1572/0/0 df=382 of=0 ql=0 qs=.... kt=0/W/7 ktl=cf15 b=10 ci=75006 co=0 ca=0
rcu_bh:
- 0 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=545/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/0 ktl=ebc3 b=10 ci=0 co=0 ca=0
- 1 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=967/1/0 df=3 of=0 ri=1 ql=0 qs=.... kt=0/W/1 ktl=58c b=10 ci=151 co=0 ca=0
- 2 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=1081/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/2 ktl=da94 b=10 ci=0 co=0 ca=0
- 3 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=1846/0/0 df=8 of=0 ri=1 ql=0 qs=.... kt=0/W/3 ktl=d1cd b=10 ci=0 co=0 ca=0
- 4 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=369/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/4 ktl=e0e7 b=10 ci=0 co=0 ca=0
- 5 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=381/1/0 df=4 of=0 ri=1 ql=0 qs=.... kt=0/W/5 ktl=fb2f b=10 ci=0 co=0 ca=0
- 6 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=1037/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/6 ktl=d2ad b=10 ci=0 co=0 ca=0
- 7 c=1474 g=1474 pq=1 pgp=1473 qp=0 dt=1572/0/0 df=8 of=0 ri=1 ql=0 qs=.... kt=0/W/7 ktl=cf15 b=10 ci=0 co=0 ca=0
+ 0 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=545/1/0 df=6 of=0 ql=0 qs=.... kt=0/W/0 ktl=ebc3 b=10 ci=0 co=0 ca=0
+ 1 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=967/1/0 df=3 of=0 ql=0 qs=.... kt=0/W/1 ktl=58c b=10 ci=151 co=0 ca=0
+ 2 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=1081/1/0 df=6 of=0 ql=0 qs=.... kt=0/W/2 ktl=da94 b=10 ci=0 co=0 ca=0
+ 3 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=1846/0/0 df=8 of=0 ql=0 qs=.... kt=0/W/3 ktl=d1cd b=10 ci=0 co=0 ca=0
+ 4 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=369/1/0 df=6 of=0 ql=0 qs=.... kt=0/W/4 ktl=e0e7 b=10 ci=0 co=0 ca=0
+ 5 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=381/1/0 df=4 of=0 ql=0 qs=.... kt=0/W/5 ktl=fb2f b=10 ci=0 co=0 ca=0
+ 6 c=1480 g=1480 pq=1 pgp=1480 qp=0 dt=1037/1/0 df=6 of=0 ql=0 qs=.... kt=0/W/6 ktl=d2ad b=10 ci=0 co=0 ca=0
+ 7 c=1474 g=1474 pq=1 pgp=1473 qp=0 dt=1572/0/0 df=8 of=0 ql=0 qs=.... kt=0/W/7 ktl=cf15 b=10 ci=0 co=0 ca=0
The first section lists the rcu_data structures for rcu_sched, the second
for rcu_bh. Note that CONFIG_TREE_PREEMPT_RCU kernels will have an
@@ -119,10 +119,6 @@
CPU is offline when it is really alive and kicking) is a fatal
error, so it makes sense to err conservatively.
-o "ri" is the number of times that RCU has seen fit to send a
- reschedule IPI to this CPU in order to get it to report a
- quiescent state.
-
o "ql" is the number of RCU callbacks currently residing on
this CPU. This is the total number of callbacks, regardless
of what state they are in (new, waiting for grace period to
diff --git a/Documentation/hwmon/w83627ehf b/Documentation/hwmon/w83627ehf
index 3f44dbd..ceaf6f6 100644
--- a/Documentation/hwmon/w83627ehf
+++ b/Documentation/hwmon/w83627ehf
@@ -50,7 +50,7 @@
(NCT6775F), and NCT6776F super I/O chips. We will refer to them collectively
as Winbond chips.
-The chips implement 2 to 4 temperature sensors (9 for NCT6775F and NCT6776F),
+The chips implement 3 to 4 temperature sensors (9 for NCT6775F and NCT6776F),
2 to 5 fan rotation speed sensors, 8 to 10 analog voltage sensors, one VID
(except for 627UHG), alarms with beep warnings (control unimplemented),
and some automatic fan regulation strategies (plus manual fan control mode).
@@ -143,8 +143,13 @@
pwm[1-4]_stop_time - how many milliseconds [ms] must elapse to switch
corresponding fan off. (when the temperature was below
defined range).
+pwm[1-4]_start_output-minimum fan speed (range 1 - 255) when spinning up
+pwm[1-4]_step_output- rate of fan speed change (1 - 255)
+pwm[1-4]_stop_output- minimum fan speed (range 1 - 255) when spinning down
+pwm[1-4]_max_output - maximum fan speed (range 1 - 255), when the temperature
+ is above defined range.
-Note: last two functions are influenced by other control bits, not yet exported
+Note: last six functions are influenced by other control bits, not yet exported
by the driver, so a change might not have any effect.
Implementation Details
diff --git a/Documentation/hwmon/zl6100 b/Documentation/hwmon/zl6100
index 51f76a1..a4e8d90 100644
--- a/Documentation/hwmon/zl6100
+++ b/Documentation/hwmon/zl6100
@@ -88,14 +88,12 @@
delay
-----
-Some Intersil/Zilker Labs DC-DC controllers require a minimum interval between
-I2C bus accesses. According to Intersil, the minimum interval is 2 ms, though
-1 ms appears to be sufficient and has not caused any problems in testing.
-The problem is known to affect ZL6100, ZL2105, and ZL2008. It is known not to
-affect ZL2004 and ZL6105. The driver automatically sets the interval to 1 ms
-except for ZL2004 and ZL6105. To enable manual override, the driver provides a
-writeable module parameter, 'delay', which can be used to set the interval to
-a value between 0 and 65,535 microseconds.
+Intersil/Zilker Labs DC-DC controllers require a minimum interval between I2C
+bus accesses. According to Intersil, the minimum interval is 2 ms, though 1 ms
+appears to be sufficient and has not caused any problems in testing. The problem
+is known to affect all currently supported chips. For manual override, the
+driver provides a writeable module parameter, 'delay', which can be used to set
+the interval to a value between 0 and 65,535 microseconds.
Sysfs entries
diff --git a/MAINTAINERS b/MAINTAINERS
index 3321d75..9c63a43 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1513,19 +1513,23 @@
BLUETOOTH DRIVERS
M: Marcel Holtmann <marcel@holtmann.org>
-M: "Gustavo F. Padovan" <padovan@profusion.mobi>
+M: Gustavo Padovan <gustavo@padovan.org>
+M: Johan Hedberg <johan.hedberg@gmail.com>
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git
S: Maintained
F: drivers/bluetooth/
BLUETOOTH SUBSYSTEM
M: Marcel Holtmann <marcel@holtmann.org>
-M: "Gustavo F. Padovan" <padovan@profusion.mobi>
+M: Gustavo Padovan <gustavo@padovan.org>
+M: Johan Hedberg <johan.hedberg@gmail.com>
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git
S: Maintained
F: net/bluetooth/
F: include/net/bluetooth/
@@ -1717,6 +1721,14 @@
F: include/linux/can/netlink.h
F: include/linux/can/platform/
+CAPABILITIES
+M: Serge Hallyn <serge.hallyn@canonical.com>
+L: linux-security-module@vger.kernel.org
+S: Supported
+F: include/linux/capability.h
+F: security/capability.c
+F: security/commoncap.c
+
CELL BROADBAND ENGINE ARCHITECTURE
M: Arnd Bergmann <arnd@arndb.de>
L: linuxppc-dev@lists.ozlabs.org
@@ -2351,6 +2363,15 @@
F: drivers/gpu/drm/exynos
F: include/drm/exynos*
+EXYNOS MIPI DISPLAY DRIVERS
+M: Inki Dae <inki.dae@samsung.com>
+M: Donghwa Lee <dh09.lee@samsung.com>
+M: Kyungmin Park <kyungmin.park@samsung.com>
+L: linux-fbdev@vger.kernel.org
+S: Maintained
+F: drivers/video/exynos/exynos_mipi*
+F: include/video/exynos_mipi*
+
DSCC4 DRIVER
M: Francois Romieu <romieu@fr.zoreil.com>
L: netdev@vger.kernel.org
@@ -2845,6 +2866,12 @@
F: drivers/media/video/m5mols/
F: include/media/m5mols.h
+FUJITSU TABLET EXTRAS
+M: Robert Gerlach <khnz@gmx.de>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/platform/x86/fujitsu-tablet.c
+
FUSE: FILESYSTEM IN USERSPACE
M: Miklos Szeredi <miklos@szeredi.hu>
L: fuse-devel@lists.sourceforge.net
@@ -5853,6 +5880,7 @@
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) ST SPEAR DRIVER
M: Viresh Kumar <viresh.kumar@st.com>
+L: spear-devel@list.st.com
L: linux-mmc@vger.kernel.org
S: Maintained
F: drivers/mmc/host/sdhci-spear.c
@@ -6195,24 +6223,32 @@
SPEAR PLATFORM SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
+L: spear-devel@list.st.com
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/plat-spear/
SPEAR3XX MACHINE SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
+L: spear-devel@list.st.com
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/mach-spear3xx/
SPEAR6XX MACHINE SUPPORT
M: Rajeev Kumar <rajeev-dlh.kumar@st.com>
+L: spear-devel@list.st.com
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/mach-spear6xx/
SPEAR CLOCK FRAMEWORK SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
+L: spear-devel@list.st.com
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/mach-spear*/clock.c
@@ -6221,6 +6257,8 @@
SPEAR PAD MULTIPLEXING SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
+L: spear-devel@list.st.com
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/plat-spear/include/plat/padmux.h
diff --git a/Makefile b/Makefile
index 56d4817..1932984 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 3
SUBLEVEL = 0
-EXTRAVERSION = -rc7
+EXTRAVERSION =
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index 068b754..8aea3a2 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -38,6 +38,7 @@
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/sh_clk.h>
+#include <linux/videodev2.h>
#include <video/sh_mobile_lcdc.h>
#include <video/sh_mipi_dsi.h>
#include <sound/sh_fsi.h>
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index eeb4d96..b4718b0 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -794,7 +794,7 @@
static struct platform_device fsi_ak4643_device = {
.name = "fsi-ak4642-audio",
.dev = {
- .platform_data = &fsi_info,
+ .platform_data = &fsi2_ak4643_info,
},
};
diff --git a/arch/arm/mach-shmobile/board-bonito.c b/arch/arm/mach-shmobile/board-bonito.c
index 4d22016..4bd1162 100644
--- a/arch/arm/mach-shmobile/board-bonito.c
+++ b/arch/arm/mach-shmobile/board-bonito.c
@@ -27,6 +27,7 @@
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>
+#include <linux/videodev2.h>
#include <mach/common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -241,7 +242,7 @@
.clock_source = LCDC_CLK_BUS,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
- .bpp = 16,
+ .fourcc = V4L2_PIX_FMT_RGB565,
.interface_type = RGB24,
.clock_divider = 5,
.flags = 0,
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index a281324..7b53cda 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -1352,6 +1352,10 @@
static void __init mackerel_map_io(void)
{
iotable_init(mackerel_io_desc, ARRAY_SIZE(mackerel_io_desc));
+ /* DMA memory at 0xff200000 - 0xffdfffff. The default 2MB size isn't
+ * enough to allocate the frame buffer memory.
+ */
+ init_consistent_dma_size(12 << 20);
/* setup early devices and console here as well */
sh7372_add_early_devices();
diff --git a/arch/c6x/kernel/entry.S b/arch/c6x/kernel/entry.S
index 3e977cc..30b37e5 100644
--- a/arch/c6x/kernel/entry.S
+++ b/arch/c6x/kernel/entry.S
@@ -717,33 +717,6 @@
#endif
ENDPROC(sys_ftruncate64_c6x)
-#ifdef __ARCH_WANT_SYSCALL_OFF_T
-;; On Entry
-;; A4 - fd
-;; B4 - offset_lo (LE), offset_hi (BE)
-;; A6 - offset_lo (BE), offset_hi (LE)
-;; B6 - len
-;; A8 - advice
-ENTRY(sys_fadvise64_c6x)
-#ifdef CONFIG_C6X_BIG_KERNEL
- MVKL .S1 sys_fadvise64,A0
- MVKH .S1 sys_fadvise64,A0
- BNOP .S2X A0,2
-#else
- B .S2 sys_fadvise64
- NOP 2
-#endif
-#ifdef CONFIG_CPU_BIG_ENDIAN
- MV .L2 B4,B5
- || MV .D2X A6,B4
-#else
- MV .D2X A6,B5
-#endif
- MV .D1X B6,A6
- MV .D2X A8,B6
-#endif
-ENDPROC(sys_fadvise64_c6x)
-
;; On Entry
;; A4 - fd
;; B4 - offset_lo (LE), offset_hi (BE)
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index b9a7fdd..e30b2df 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -165,13 +165,6 @@
return (code + (code >> 9)) & 0xff;
}
-static void ext_int_hash_update(struct rcu_head *head)
-{
- struct ext_int_info *p = container_of(head, struct ext_int_info, rcu);
-
- kfree(p);
-}
-
int register_external_interrupt(u16 code, ext_int_handler_t handler)
{
struct ext_int_info *p;
@@ -202,7 +195,7 @@
list_for_each_entry_rcu(p, &ext_int_hash[index], entry)
if (p->code == code && p->handler == handler) {
list_del_rcu(&p->entry);
- call_rcu(&p->rcu, ext_int_hash_update);
+ kfree_rcu(p, rcu);
}
spin_unlock_irqrestore(&ext_int_hash_lock, flags);
return 0;
diff --git a/arch/sh/kernel/cpu/sh2a/ex.S b/arch/sh/kernel/cpu/sh2a/ex.S
index 3ead9e6..4568066 100644
--- a/arch/sh/kernel/cpu/sh2a/ex.S
+++ b/arch/sh/kernel/cpu/sh2a/ex.S
@@ -66,6 +66,7 @@
.long exception_entry0 + vector * 6
vector = vector + 1
.endr
+vector = 0
.rept 256
.long exception_entry1 + vector * 6
vector = vector + 1
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c
index 0fbff14..0bd21c8 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c
@@ -79,7 +79,7 @@
#define MSTPCR1 0xffc80034
#define MSTPCR2 0xffc10028
-enum { MSTP004, MSTP000, MSTP114, MSTP113, MSTP112,
+enum { MSTP004, MSTP000, MSTP127, MSTP114, MSTP113, MSTP112,
MSTP111, MSTP110, MSTP103, MSTP102, MSTP220,
MSTP_NR };
@@ -89,6 +89,7 @@
[MSTP000] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 0, 0),
/* MSTPCR1 */
+ [MSTP127] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 27, 0),
[MSTP114] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 14, 0),
[MSTP113] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 13, 0),
[MSTP112] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 12, 0),
@@ -131,6 +132,7 @@
CLKDEV_CON_ID("usb_fck", &mstp_clks[MSTP103]),
CLKDEV_DEV_ID("renesas_usbhs.0", &mstp_clks[MSTP102]),
CLKDEV_CON_ID("mmc0", &mstp_clks[MSTP220]),
+ CLKDEV_CON_ID("rspi2", &mstp_clks[MSTP127]),
};
int __init arch_clk_init(void)
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
index e5b420c..2b31443 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
@@ -156,7 +156,7 @@
CLKDEV_CON_ID("siof_fck", &mstp_clks[MSTP003]),
CLKDEV_CON_ID("hspi_fck", &mstp_clks[MSTP002]),
CLKDEV_CON_ID("hudi_fck", &mstp_clks[MSTP119]),
- CLKDEV_CON_ID("ubc_fck", &mstp_clks[MSTP117]),
+ CLKDEV_CON_ID("ubc0", &mstp_clks[MSTP117]),
CLKDEV_CON_ID("dmac_11_6_fck", &mstp_clks[MSTP105]),
CLKDEV_CON_ID("dmac_5_0_fck", &mstp_clks[MSTP104]),
CLKDEV_CON_ID("gdta_fck", &mstp_clks[MSTP100]),
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index ad1fb5d..eddcfb3 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -31,7 +31,7 @@
#KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
-KBUILD_AFLAGS += -m32
+KBUILD_AFLAGS += -m32 -Wa,-Av8
#LDFLAGS_vmlinux = -N -Ttext 0xf0004000
# Since 2.5.40, the first stage is left not btfix-ed.
diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig
index dafdbba..b8d99ac 100644
--- a/arch/tile/configs/tilegx_defconfig
+++ b/arch/tile/configs/tilegx_defconfig
@@ -1,337 +1,93 @@
-#
-# Automatically generated make config: don't edit
-# Linux/tilegx 2.6.39-rc5 Kernel Configuration
-# Wed May 4 11:08:04 2011
-#
-CONFIG_TILE=y
-CONFIG_MMU=y
-CONFIG_GENERIC_CSUM=y
-CONFIG_SEMAPHORE_SLEEPERS=y
-CONFIG_HAVE_ARCH_ALLOC_REMAP=y
-CONFIG_HAVE_SETUP_PER_CPU_AREA=y
-CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
-CONFIG_SYS_SUPPORTS_HUGETLBFS=y
-CONFIG_GENERIC_CLOCKEVENTS=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_DEFAULT_MIGRATION_COST=10000000
-CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
-CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
-CONFIG_ARCH_DMA_ADDR_T_64BIT=y
-CONFIG_LOCKDEP_SUPPORT=y
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
-CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-CONFIG_STRICT_DEVMEM=y
-CONFIG_SMP=y
-# CONFIG_DEBUG_COPY_FROM_USER is not set
-CONFIG_HVC_TILE=y
CONFIG_TILEGX=y
-CONFIG_64BIT=y
-CONFIG_ARCH_DEFCONFIG="arch/tile/configs/tilegx_defconfig"
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-CONFIG_CONSTRUCTORS=y
-
-#
-# General setup
-#
CONFIG_EXPERIMENTAL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_CROSS_COMPILE=""
-CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_SWAP=y
CONFIG_SYSVIPC=y
-CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
-# CONFIG_FHANDLE is not set
+CONFIG_FHANDLE=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_AUDIT=y
-CONFIG_HAVE_GENERIC_HARDIRQS=y
-
-#
-# IRQ subsystem
-#
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_GENERIC_IRQ_SHOW=y
-CONFIG_GENERIC_PENDING_IRQ=y
-
-#
-# RCU Subsystem
-#
-CONFIG_TREE_RCU=y
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_RCU_TRACE is not set
-CONFIG_RCU_FANOUT=64
-# CONFIG_RCU_FANOUT_EXACT is not set
-# CONFIG_RCU_FAST_NO_HZ is not set
-# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=19
CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
-CONFIG_CGROUP_NS=y
-# CONFIG_CGROUP_FREEZER is not set
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
-CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEM_RES_CTLR=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
-CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED=y
CONFIG_CGROUP_SCHED=y
-CONFIG_FAIR_GROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
-# CONFIG_DEBUG_BLK_CGROUP is not set
CONFIG_NAMESPACES=y
-CONFIG_UTS_NS=y
-CONFIG_IPC_NS=y
-CONFIG_USER_NS=y
-CONFIG_PID_NS=y
-CONFIG_NET_NS=y
-# CONFIG_SCHED_AUTOGROUP is not set
-CONFIG_MM_OWNER=y
-# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="usr/contents.txt"
-CONFIG_INITRAMFS_ROOT_UID=0
-CONFIG_INITRAMFS_ROOT_GID=0
-CONFIG_RD_GZIP=y
-# CONFIG_RD_BZIP2 is not set
-# CONFIG_RD_LZMA is not set
-# CONFIG_RD_XZ is not set
-# CONFIG_RD_LZO is not set
-CONFIG_INITRAMFS_COMPRESSION_NONE=y
-# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_SYSCTL=y
-CONFIG_ANON_INODES=y
-CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_AIO=y
CONFIG_EMBEDDED=y
-
-#
-# Kernel Performance Events And Counters
-#
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_PCI_QUIRKS=y
-CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
-# CONFIG_SLAB is not set
-CONFIG_SLUB=y
-# CONFIG_SLOB is not set
CONFIG_PROFILING=y
-CONFIG_USE_GENERIC_SMP_HELPERS=y
-
-#
-# GCOV-based kernel profiling
-#
-# CONFIG_GCOV_KERNEL is not set
-# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
-CONFIG_SLABINFO=y
-CONFIG_RT_MUTEXES=y
-CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_STOP_MACHINE=y
-CONFIG_BLOCK=y
-CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_INTEGRITY=y
-# CONFIG_BLK_DEV_THROTTLING is not set
-CONFIG_BLOCK_COMPAT=y
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_OSF_PARTITION=y
+CONFIG_AMIGA_PARTITION=y
+CONFIG_MAC_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_SGI_PARTITION=y
+CONFIG_SUN_PARTITION=y
+CONFIG_KARMA_PARTITION=y
+CONFIG_EFI_PARTITION=y
CONFIG_CFQ_GROUP_IOSCHED=y
-# CONFIG_DEFAULT_DEADLINE is not set
-CONFIG_DEFAULT_CFQ=y
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="cfq"
-CONFIG_PADATA=y
-# CONFIG_INLINE_SPIN_TRYLOCK is not set
-# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
-# CONFIG_INLINE_SPIN_LOCK is not set
-# CONFIG_INLINE_SPIN_LOCK_BH is not set
-# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
-# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
-CONFIG_INLINE_SPIN_UNLOCK=y
-# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
-CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
-# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
-# CONFIG_INLINE_READ_TRYLOCK is not set
-# CONFIG_INLINE_READ_LOCK is not set
-# CONFIG_INLINE_READ_LOCK_BH is not set
-# CONFIG_INLINE_READ_LOCK_IRQ is not set
-# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
-CONFIG_INLINE_READ_UNLOCK=y
-# CONFIG_INLINE_READ_UNLOCK_BH is not set
-CONFIG_INLINE_READ_UNLOCK_IRQ=y
-# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
-# CONFIG_INLINE_WRITE_TRYLOCK is not set
-# CONFIG_INLINE_WRITE_LOCK is not set
-# CONFIG_INLINE_WRITE_LOCK_BH is not set
-# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
-# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
-CONFIG_INLINE_WRITE_UNLOCK=y
-# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
-CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
-# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
-CONFIG_MUTEX_SPIN_ON_OWNER=y
-
-#
-# Tilera-specific configuration
-#
CONFIG_NR_CPUS=100
-CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
-CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_HZ_100=y
-# CONFIG_HZ_250 is not set
-# CONFIG_HZ_300 is not set
-# CONFIG_HZ_1000 is not set
-CONFIG_HZ=100
-CONFIG_SCHED_HRTICK=y
-# CONFIG_KEXEC is not set
-CONFIG_COMPAT=y
-CONFIG_SYSVIPC_COMPAT=y
-# CONFIG_HIGHMEM is not set
-CONFIG_NUMA=y
-CONFIG_NODES_SHIFT=2
-CONFIG_PAGE_OFFSET=0xC0000000
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_DISCONTIGMEM_MANUAL=y
-CONFIG_DISCONTIGMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-CONFIG_NEED_MULTIPLE_NODES=y
-CONFIG_PAGEFLAGS_EXTENDED=y
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_COMPACTION is not set
-CONFIG_MIGRATION=y
-CONFIG_PHYS_ADDR_T_64BIT=y
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_VIRT_TO_BUS=y
-# CONFIG_KSM is not set
-CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
-# CONFIG_CMDLINE_BOOL is not set
-CONFIG_VMALLOC_RESERVE=0x1000000
-CONFIG_HARDWALL=y
-CONFIG_KERNEL_PL=1
-
-#
-# Bus options
-#
-CONFIG_PCI=y
-CONFIG_PCI_DOMAINS=y
-# CONFIG_NO_IOMEM is not set
-# CONFIG_NO_IOPORT is not set
-# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_DEBUG=y
-# CONFIG_PCI_STUB is not set
-# CONFIG_PCI_IOV is not set
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_KCORE_ELF=y
-CONFIG_BINFMT_ELF=y
-CONFIG_COMPAT_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_NET=y
-
-#
-# Networking options
-#
CONFIG_PACKET=y
CONFIG_UNIX=y
-CONFIG_XFRM=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_SUB_POLICY=y
-CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
-CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
-# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
-CONFIG_IP_ROUTE_CLASSID=y
-# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
-# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_IP_MROUTE=y
-# CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
-# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-CONFIG_INET_XFRM_TUNNEL=m
-CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
-CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
-CONFIG_INET_TCP_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
-CONFIG_TCP_CONG_BIC=m
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_TCP_CONG_WESTWOOD=m
-CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
-CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
-CONFIG_DEFAULT_CUBIC=y
-# CONFIG_DEFAULT_RENO is not set
-CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
@@ -342,108 +98,60 @@
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
-CONFIG_INET6_XFRM_TUNNEL=m
-CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
-# CONFIG_IPV6_SIT_6RD is not set
-CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
-# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
-# CONFIG_IPV6_MROUTE_MULTIPLE_TABLES is not set
CONFIG_IPV6_PIMSM_V2=y
CONFIG_NETLABEL=y
-CONFIG_NETWORK_SECMARK=y
-# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
-# CONFIG_NETFILTER_DEBUG is not set
-CONFIG_NETFILTER_ADVANCED=y
-CONFIG_BRIDGE_NETFILTER=y
-
-#
-# Core Netfilter Configuration
-#
-CONFIG_NETFILTER_NETLINK=m
-CONFIG_NETFILTER_NETLINK_QUEUE=m
-CONFIG_NETFILTER_NETLINK_LOG=m
-CONFIG_NF_CONNTRACK=y
-CONFIG_NF_CONNTRACK_MARK=y
+CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_ZONES=y
CONFIG_NF_CONNTRACK_EVENTS=y
-# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_GRE=m
-CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
-CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
-# CONFIG_NF_CONNTRACK_SNMP is not set
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
-# CONFIG_NF_CT_NETLINK is not set
CONFIG_NETFILTER_TPROXY=m
-CONFIG_NETFILTER_XTABLES=y
-
-#
-# Xtables combined modules
-#
-CONFIG_NETFILTER_XT_MARK=m
-CONFIG_NETFILTER_XT_CONNMARK=m
-
-#
-# Xtables targets
-#
-# CONFIG_NETFILTER_XT_TARGET_AUDIT is not set
-# CONFIG_NETFILTER_XT_TARGET_CHECKSUM is not set
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
-CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
-CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
-
-#
-# Xtables matches
-#
-# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
-CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
-# CONFIG_NETFILTER_XT_MATCH_CPU is not set
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
-# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
-CONFIG_NETFILTER_XT_MATCH_HL=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
@@ -460,55 +168,29 @@
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
-CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
-CONFIG_NETFILTER_XT_MATCH_STATE=y
+CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
-# CONFIG_IP_SET is not set
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
-# CONFIG_IP_VS_DEBUG is not set
-CONFIG_IP_VS_TAB_BITS=12
-
-#
-# IPVS transport protocol load balancing support
-#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
-CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y
-
-#
-# IPVS scheduler
-#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
-# CONFIG_IP_VS_DH is not set
-# CONFIG_IP_VS_SH is not set
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
-
-#
-# IPVS application helper
-#
-# CONFIG_IP_VS_NFCT is not set
-# CONFIG_IP_VS_PE_SIP is not set
-
-#
-# IP: Netfilter Configuration
-#
-CONFIG_NF_DEFRAG_IPV4=y
-CONFIG_NF_CONNTRACK_IPV4=y
+CONFIG_NF_CONNTRACK_IPV4=m
# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=y
@@ -519,9 +201,7 @@
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
-# CONFIG_NF_NAT is not set
CONFIG_IP_NF_MANGLE=m
-# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
@@ -529,11 +209,6 @@
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
-
-#
-# IPv6: Netfilter Configuration
-#
-CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
@@ -574,57 +249,20 @@
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
-# CONFIG_IP_DCCP is not set
-CONFIG_IP_SCTP=m
-# CONFIG_SCTP_DBG_MSG is not set
-# CONFIG_SCTP_DBG_OBJCNT is not set
-# CONFIG_SCTP_HMAC_NONE is not set
-# CONFIG_SCTP_HMAC_SHA1 is not set
-CONFIG_SCTP_HMAC_MD5=y
CONFIG_RDS=m
CONFIG_RDS_TCP=m
-# CONFIG_RDS_DEBUG is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_L2TP is not set
-CONFIG_STP=m
-CONFIG_GARP=m
CONFIG_BRIDGE=m
-CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_NET_DSA=y
-CONFIG_NET_DSA_TAG_DSA=y
-CONFIG_NET_DSA_TAG_EDSA=y
-CONFIG_NET_DSA_TAG_TRAILER=y
-CONFIG_NET_DSA_MV88E6XXX=y
-CONFIG_NET_DSA_MV88E6060=y
-CONFIG_NET_DSA_MV88E6XXX_NEED_PPU=y
-CONFIG_NET_DSA_MV88E6131=y
-CONFIG_NET_DSA_MV88E6123_61_65=y
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
-# CONFIG_DECNET is not set
-CONFIG_LLC=m
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
CONFIG_PHONET=m
-# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y
-
-#
-# Queueing/Scheduling
-#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
-# CONFIG_NET_SCH_SFB is not set
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
@@ -632,14 +270,7 @@
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
-# CONFIG_NET_SCH_MQPRIO is not set
-# CONFIG_NET_SCH_CHOKE is not set
CONFIG_NET_SCH_INGRESS=m
-
-#
-# Classification
-#
-CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
@@ -652,7 +283,6 @@
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_EMATCH=y
-CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
@@ -668,307 +298,46 @@
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
-# CONFIG_NET_ACT_CSUM is not set
CONFIG_NET_CLS_IND=y
-CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
-CONFIG_DNS_RESOLVER=y
-# CONFIG_BATMAN_ADV is not set
-CONFIG_RPS=y
-CONFIG_RFS_ACCEL=y
-CONFIG_XPS=y
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_CAN is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
-CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
-# CONFIG_WIMAX is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-# CONFIG_CAIF is not set
-# CONFIG_CEPH_LIB is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
-CONFIG_EXTRA_FIRMWARE=""
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=y
-CONFIG_PROC_EVENTS=y
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-CONFIG_BLK_DEV=y
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
-# CONFIG_BLK_DEV_DRBD is not set
-# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
-# CONFIG_BLK_DEV_XIP is not set
-# CONFIG_CDROM_PKTCDVD is not set
-CONFIG_ATA_OVER_ETH=y
-# CONFIG_BLK_DEV_RBD is not set
-# CONFIG_SENSORS_LIS3LV02D is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_AD525X_DPOT is not set
-# CONFIG_PHANTOM is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-# CONFIG_ICS932S401 is not set
-# CONFIG_ENCLOSURE_SERVICES is not set
-# CONFIG_HP_ILO is not set
-# CONFIG_APDS9802ALS is not set
-# CONFIG_ISL29003 is not set
-# CONFIG_ISL29020 is not set
-# CONFIG_SENSORS_TSL2550 is not set
-# CONFIG_SENSORS_BH1780 is not set
-# CONFIG_SENSORS_BH1770 is not set
-# CONFIG_SENSORS_APDS990X is not set
-# CONFIG_HMC6352 is not set
-# CONFIG_DS1682 is not set
-# CONFIG_BMP085 is not set
-# CONFIG_PCH_PHUB is not set
-# CONFIG_C2PORT is not set
-
-#
-# EEPROM support
-#
-# CONFIG_EEPROM_AT24 is not set
-# CONFIG_EEPROM_LEGACY is not set
-# CONFIG_EEPROM_MAX6875 is not set
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_CB710_CORE is not set
-
-#
-# Texas Instruments shared transport line discipline
-#
-# CONFIG_SENSORS_LIS3_I2C is not set
-
-#
-# SCSI device support
-#
-CONFIG_SCSI_MOD=m
+CONFIG_ATA_OVER_ETH=m
CONFIG_RAID_ATTRS=m
-CONFIG_SCSI=m
-CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=m
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-# CONFIG_SCSI_MULTI_LUN is not set
+CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
-# CONFIG_SCSI_SCAN_ASYNC is not set
-CONFIG_SCSI_WAIT_SCAN=m
-
-#
-# SCSI Transports
-#
-# CONFIG_SCSI_SPI_ATTRS is not set
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-CONFIG_SCSI_SAS_ATTRS=m
-# CONFIG_SCSI_SAS_LIBSAS is not set
-# CONFIG_SCSI_SRP_ATTRS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_ISCSI_BOOT_SYSFS is not set
-# CONFIG_SCSI_CXGB3_ISCSI is not set
-# CONFIG_SCSI_CXGB4_ISCSI is not set
-# CONFIG_SCSI_BNX2_ISCSI is not set
-# CONFIG_SCSI_BNX2X_FCOE is not set
-# CONFIG_BE2ISCSI is not set
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_HPSA is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_3W_SAS is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_AIC94XX is not set
-# CONFIG_SCSI_MVSAS is not set
-# CONFIG_SCSI_DPT_I2O is not set
-# CONFIG_SCSI_ADVANSYS is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_MPT2SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_LIBFC is not set
-# CONFIG_LIBFCOE is not set
-# CONFIG_FCOE is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_STEX is not set
-# CONFIG_SCSI_SYM53C8XX_2 is not set
-# CONFIG_SCSI_IPR is not set
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_PMCRAID is not set
-# CONFIG_SCSI_PM8001 is not set
-# CONFIG_SCSI_SRP is not set
-# CONFIG_SCSI_BFA_FC is not set
-# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
-# CONFIG_SCSI_DH is not set
-# CONFIG_SCSI_OSD_INITIATOR is not set
-CONFIG_ATA=m
-# CONFIG_ATA_NONSTANDARD is not set
-CONFIG_ATA_VERBOSE_ERROR=y
-CONFIG_SATA_PMP=y
-
-#
-# Controllers with non-SFF native interface
-#
-# CONFIG_SATA_AHCI is not set
-# CONFIG_SATA_AHCI_PLATFORM is not set
-# CONFIG_SATA_INIC162X is not set
-# CONFIG_SATA_ACARD_AHCI is not set
-CONFIG_SATA_SIL24=m
-CONFIG_ATA_SFF=y
-
-#
-# SFF controllers with custom DMA interface
-#
-# CONFIG_PDC_ADMA is not set
-# CONFIG_SATA_QSTOR is not set
-# CONFIG_SATA_SX4 is not set
-CONFIG_ATA_BMDMA=y
-
-#
-# SATA SFF controllers with BMDMA
-#
-# CONFIG_ATA_PIIX is not set
-# CONFIG_SATA_MV is not set
-# CONFIG_SATA_NV is not set
-# CONFIG_SATA_PROMISE is not set
-# CONFIG_SATA_SIL is not set
-# CONFIG_SATA_SIS is not set
-# CONFIG_SATA_SVW is not set
-# CONFIG_SATA_ULI is not set
-# CONFIG_SATA_VIA is not set
-# CONFIG_SATA_VITESSE is not set
-
-#
-# PATA SFF controllers with BMDMA
-#
-# CONFIG_PATA_ALI is not set
-# CONFIG_PATA_AMD is not set
-# CONFIG_PATA_ARASAN_CF is not set
-# CONFIG_PATA_ARTOP is not set
-# CONFIG_PATA_ATIIXP is not set
-# CONFIG_PATA_ATP867X is not set
-# CONFIG_PATA_CMD64X is not set
-# CONFIG_PATA_CS5520 is not set
-# CONFIG_PATA_CS5530 is not set
-# CONFIG_PATA_CS5536 is not set
-# CONFIG_PATA_CYPRESS is not set
-# CONFIG_PATA_EFAR is not set
-# CONFIG_PATA_HPT366 is not set
-# CONFIG_PATA_HPT37X is not set
-# CONFIG_PATA_HPT3X2N is not set
-# CONFIG_PATA_HPT3X3 is not set
-# CONFIG_PATA_IT8213 is not set
-# CONFIG_PATA_IT821X is not set
-# CONFIG_PATA_JMICRON is not set
-# CONFIG_PATA_MARVELL is not set
-# CONFIG_PATA_NETCELL is not set
-# CONFIG_PATA_NINJA32 is not set
-# CONFIG_PATA_NS87415 is not set
-# CONFIG_PATA_OLDPIIX is not set
-# CONFIG_PATA_OPTIDMA is not set
-# CONFIG_PATA_PDC2027X is not set
-# CONFIG_PATA_PDC_OLD is not set
-# CONFIG_PATA_RADISYS is not set
-# CONFIG_PATA_RDC is not set
-# CONFIG_PATA_SC1200 is not set
-# CONFIG_PATA_SCH is not set
-# CONFIG_PATA_SERVERWORKS is not set
-# CONFIG_PATA_SIL680 is not set
-# CONFIG_PATA_SIS is not set
-# CONFIG_PATA_TOSHIBA is not set
-# CONFIG_PATA_TRIFLEX is not set
-# CONFIG_PATA_VIA is not set
-# CONFIG_PATA_WINBOND is not set
-
-#
-# PIO-only SFF controllers
-#
-# CONFIG_PATA_CMD640_PCI is not set
-# CONFIG_PATA_MPIIX is not set
-# CONFIG_PATA_NS87410 is not set
-# CONFIG_PATA_OPTI is not set
-# CONFIG_PATA_PLATFORM is not set
-# CONFIG_PATA_RZ1000 is not set
-
-#
-# Generic fallback / legacy drivers
-#
-# CONFIG_ATA_GENERIC is not set
-# CONFIG_PATA_LEGACY is not set
+CONFIG_SCSI_SAS_ATA=y
+CONFIG_SCSI_MVSAS=y
+# CONFIG_SCSI_MVSAS_DEBUG is not set
+CONFIG_SCSI_MVSAS_TASKLET=y
+CONFIG_ATA=y
+CONFIG_SATA_SIL24=y
+# CONFIG_ATA_SFF is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
-CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MULTICORE_RAID456=y
-# CONFIG_MD_MULTIPATH is not set
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
-# CONFIG_DM_RAID is not set
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
@@ -976,558 +345,143 @@
CONFIG_DM_MULTIPATH_ST=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
-# CONFIG_DM_FLAKEY is not set
-# CONFIG_TARGET_CORE is not set
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_FIREWIRE is not set
-# CONFIG_FIREWIRE_NOSY is not set
-# CONFIG_I2O is not set
+CONFIG_FUSION=y
+CONFIG_FUSION_SAS=y
CONFIG_NETDEVICES=y
-CONFIG_IFB=m
-CONFIG_DUMMY=m
CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_IFB=m
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
-# CONFIG_EQUALIZER is not set
+CONFIG_NETCONSOLE=m
+CONFIG_NETCONSOLE_DYNAMIC=y
+CONFIG_NETPOLL_TRAP=y
CONFIG_TUN=y
CONFIG_VETH=m
-# CONFIG_ARCNET is not set
-# CONFIG_MII is not set
-CONFIG_PHYLIB=y
-
-#
-# MII PHY device drivers
-#
-# CONFIG_MARVELL_PHY is not set
-# CONFIG_DAVICOM_PHY is not set
-# CONFIG_QSEMI_PHY is not set
-# CONFIG_LXT_PHY is not set
-# CONFIG_CICADA_PHY is not set
-# CONFIG_VITESSE_PHY is not set
-# CONFIG_SMSC_PHY is not set
-# CONFIG_BROADCOM_PHY is not set
-# CONFIG_BCM63XX_PHY is not set
-# CONFIG_ICPLUS_PHY is not set
-# CONFIG_REALTEK_PHY is not set
-# CONFIG_NATIONAL_PHY is not set
-# CONFIG_STE10XP is not set
-# CONFIG_LSI_ET1011C_PHY is not set
-# CONFIG_MICREL_PHY is not set
-# CONFIG_FIXED_PHY is not set
-# CONFIG_MDIO_BITBANG is not set
-# CONFIG_NET_ETHERNET is not set
-CONFIG_NETDEV_1000=y
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-CONFIG_E1000E=m
-# CONFIG_IP1000 is not set
-# CONFIG_IGB is not set
-# CONFIG_IGBVF is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-# CONFIG_CNIC is not set
-# CONFIG_QLA3XXX is not set
-# CONFIG_ATL1 is not set
-# CONFIG_ATL1E is not set
-# CONFIG_ATL1C is not set
-# CONFIG_JME is not set
-# CONFIG_STMMAC_ETH is not set
-# CONFIG_PCH_GBE is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_TR is not set
-# CONFIG_WLAN is not set
-
-#
-# Enable WiMAX (Networking options) to see the WiMAX drivers
-#
-# CONFIG_WAN is not set
-
-#
-# CAIF transport drivers
-#
+CONFIG_NET_DSA_MV88E6060=y
+CONFIG_NET_DSA_MV88E6131=y
+CONFIG_NET_DSA_MV88E6123_61_65=y
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_ADAPTEC is not set
+# CONFIG_NET_VENDOR_ALTEON is not set
+# CONFIG_NET_VENDOR_AMD is not set
+# CONFIG_NET_VENDOR_ATHEROS is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_BROCADE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_CISCO is not set
+# CONFIG_NET_VENDOR_DEC is not set
+# CONFIG_NET_VENDOR_DLINK is not set
+# CONFIG_NET_VENDOR_EMULEX is not set
+# CONFIG_NET_VENDOR_EXAR is not set
+# CONFIG_NET_VENDOR_HP is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MYRI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NVIDIA is not set
+# CONFIG_NET_VENDOR_OKI is not set
+# CONFIG_NET_PACKET_ENGINE is not set
+# CONFIG_NET_VENDOR_QLOGIC is not set
+# CONFIG_NET_VENDOR_REALTEK is not set
+# CONFIG_NET_VENDOR_RDC is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SILAN is not set
+# CONFIG_NET_VENDOR_SIS is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SUN is not set
+# CONFIG_NET_VENDOR_TEHUTI is not set
+# CONFIG_NET_VENDOR_TI is not set
# CONFIG_TILE_NET is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_NET_FC is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_VMXNET3 is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-# CONFIG_INPUT_SPARSEKMAP is not set
-
-#
-# Userland interfaces
-#
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_WLAN is not set
# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
# CONFIG_VT is not set
-CONFIG_UNIX98_PTYS=y
-# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-# CONFIG_NOZOMI is not set
-# CONFIG_N_GSM is not set
-CONFIG_DEVKMEM=y
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-# CONFIG_SERIAL_MFD_HSU is not set
-# CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_TIMBERDALE is not set
-# CONFIG_SERIAL_ALTERA_JTAGUART is not set
-# CONFIG_SERIAL_ALTERA_UART is not set
-# CONFIG_SERIAL_PCH_UART is not set
-# CONFIG_TTY_PRINTK is not set
-CONFIG_HVC_DRIVER=y
-# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# PCMCIA character devices
-#
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-CONFIG_DEVPORT=y
-# CONFIG_RAMOOPS is not set
CONFIG_I2C=y
-CONFIG_I2C_BOARDINFO=y
-CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
-# CONFIG_I2C_MUX is not set
-CONFIG_I2C_HELPER_AUTO=y
-
-#
-# I2C Hardware Bus support
-#
-
-#
-# PC SMBus host controller drivers
-#
-# CONFIG_I2C_ALI1535 is not set
-# CONFIG_I2C_ALI1563 is not set
-# CONFIG_I2C_ALI15X3 is not set
-# CONFIG_I2C_AMD756 is not set
-# CONFIG_I2C_AMD8111 is not set
-# CONFIG_I2C_I801 is not set
-# CONFIG_I2C_ISCH is not set
-# CONFIG_I2C_PIIX4 is not set
-# CONFIG_I2C_NFORCE2 is not set
-# CONFIG_I2C_SIS5595 is not set
-# CONFIG_I2C_SIS630 is not set
-# CONFIG_I2C_SIS96X is not set
-# CONFIG_I2C_VIA is not set
-# CONFIG_I2C_VIAPRO is not set
-
-#
-# I2C system bus drivers (mostly embedded / system-on-chip)
-#
-# CONFIG_I2C_INTEL_MID is not set
-# CONFIG_I2C_OCORES is not set
-# CONFIG_I2C_PCA_PLATFORM is not set
-# CONFIG_I2C_PXA_PCI is not set
-# CONFIG_I2C_SIMTEC is not set
-# CONFIG_I2C_XILINX is not set
-# CONFIG_I2C_EG20T is not set
-
-#
-# External I2C/SMBus adapter drivers
-#
-# CONFIG_I2C_PARPORT_LIGHT is not set
-# CONFIG_I2C_TAOS_EVM is not set
-
-#
-# Other I2C/SMBus bus drivers
-#
-# CONFIG_I2C_STUB is not set
-# CONFIG_I2C_DEBUG_CORE is not set
-# CONFIG_I2C_DEBUG_ALGO is not set
-# CONFIG_I2C_DEBUG_BUS is not set
-# CONFIG_SPI is not set
-
-#
-# PPS support
-#
-# CONFIG_PPS is not set
-
-#
-# PPS generators support
-#
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
-# CONFIG_THERMAL is not set
-# CONFIG_WATCHDOG is not set
-CONFIG_SSB_POSSIBLE=y
-
-#
-# Sonics Silicon Backplane
-#
-# CONFIG_SSB is not set
-CONFIG_MFD_SUPPORT=y
-# CONFIG_MFD_CORE is not set
-# CONFIG_MFD_88PM860X is not set
-# CONFIG_MFD_SM501 is not set
-# CONFIG_HTC_PASIC3 is not set
-# CONFIG_TPS6105X is not set
-# CONFIG_TPS6507X is not set
-# CONFIG_TWL4030_CORE is not set
-# CONFIG_MFD_STMPE is not set
-# CONFIG_MFD_TC3589X is not set
-# CONFIG_MFD_TMIO is not set
-# CONFIG_PMIC_DA903X is not set
-# CONFIG_PMIC_ADP5520 is not set
-# CONFIG_MFD_MAX8925 is not set
-# CONFIG_MFD_MAX8997 is not set
-# CONFIG_MFD_MAX8998 is not set
-# CONFIG_MFD_WM8400 is not set
-# CONFIG_MFD_WM831X_I2C is not set
-# CONFIG_MFD_WM8350_I2C is not set
-# CONFIG_MFD_WM8994 is not set
-# CONFIG_MFD_PCF50633 is not set
-# CONFIG_ABX500_CORE is not set
-# CONFIG_LPC_SCH is not set
-# CONFIG_MFD_RDC321X is not set
-# CONFIG_MFD_JANZ_CMODIO is not set
-# CONFIG_MFD_VX855 is not set
-# CONFIG_MFD_WL1273_CORE is not set
-# CONFIG_REGULATOR is not set
-# CONFIG_MEDIA_SUPPORT is not set
-
-#
-# Graphics support
-#
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_NOWAYOUT=y
# CONFIG_VGA_ARB is not set
-# CONFIG_DRM is not set
-# CONFIG_STUB_POULSBO is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_VIDEO_OUTPUT_CONTROL is not set
-# CONFIG_FB is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_SOUND is not set
# CONFIG_HID_SUPPORT is not set
-# CONFIG_USB_SUPPORT is not set
-# CONFIG_UWB is not set
-# CONFIG_MMC is not set
-# CONFIG_MEMSTICK is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_NFC_DEVICES is not set
-# CONFIG_ACCESSIBILITY is not set
-# CONFIG_INFINIBAND is not set
-# CONFIG_EDAC is not set
-CONFIG_RTC_LIB=y
+CONFIG_USB=y
+# CONFIG_USB_DEVICE_CLASS is not set
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_LIBUSUAL=y
+CONFIG_EDAC=y
+CONFIG_EDAC_MM_EDAC=y
CONFIG_RTC_CLASS=y
-CONFIG_RTC_HCTOSYS=y
-CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
-# CONFIG_RTC_DEBUG is not set
-
-#
-# RTC interfaces
-#
-CONFIG_RTC_INTF_SYSFS=y
-CONFIG_RTC_INTF_PROC=y
-CONFIG_RTC_INTF_DEV=y
-# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
-# CONFIG_RTC_DRV_TEST is not set
-
-#
-# I2C RTC drivers
-#
-# CONFIG_RTC_DRV_DS1307 is not set
-# CONFIG_RTC_DRV_DS1374 is not set
-# CONFIG_RTC_DRV_DS1672 is not set
-# CONFIG_RTC_DRV_DS3232 is not set
-# CONFIG_RTC_DRV_MAX6900 is not set
-# CONFIG_RTC_DRV_RS5C372 is not set
-# CONFIG_RTC_DRV_ISL1208 is not set
-# CONFIG_RTC_DRV_ISL12022 is not set
-# CONFIG_RTC_DRV_X1205 is not set
-# CONFIG_RTC_DRV_PCF8563 is not set
-# CONFIG_RTC_DRV_PCF8583 is not set
-# CONFIG_RTC_DRV_M41T80 is not set
-# CONFIG_RTC_DRV_BQ32K is not set
-# CONFIG_RTC_DRV_S35390A is not set
-# CONFIG_RTC_DRV_FM3130 is not set
-# CONFIG_RTC_DRV_RX8581 is not set
-# CONFIG_RTC_DRV_RX8025 is not set
-
-#
-# SPI RTC drivers
-#
-
-#
-# Platform RTC drivers
-#
-# CONFIG_RTC_DRV_DS1286 is not set
-# CONFIG_RTC_DRV_DS1511 is not set
-# CONFIG_RTC_DRV_DS1553 is not set
-# CONFIG_RTC_DRV_DS1742 is not set
-# CONFIG_RTC_DRV_STK17TA8 is not set
-# CONFIG_RTC_DRV_M48T86 is not set
-# CONFIG_RTC_DRV_M48T35 is not set
-# CONFIG_RTC_DRV_M48T59 is not set
-# CONFIG_RTC_DRV_MSM6242 is not set
-# CONFIG_RTC_DRV_BQ4802 is not set
-# CONFIG_RTC_DRV_RP5C01 is not set
-# CONFIG_RTC_DRV_V3020 is not set
-
-#
-# on-CPU RTC drivers
-#
CONFIG_RTC_DRV_TILE=y
-# CONFIG_DMADEVICES is not set
-# CONFIG_AUXDISPLAY is not set
-# CONFIG_UIO is not set
-# CONFIG_STAGING is not set
-
-#
-# File systems
-#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=y
-CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
-CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=y
-CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-# CONFIG_EXT4_DEBUG is not set
-CONFIG_FS_XIP=y
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_JBD2=y
-CONFIG_JBD2_DEBUG=y
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-CONFIG_XFS_FS=m
+CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
-# CONFIG_XFS_RT is not set
-# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
-# CONFIG_OCFS2_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
-# CONFIG_NILFS2_FS is not set
-CONFIG_FS_POSIX_ACL=y
-CONFIG_EXPORTFS=y
-CONFIG_FILE_LOCKING=y
-CONFIG_FSNOTIFY=y
-CONFIG_DNOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_FANOTIFY is not set
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-# CONFIG_QUOTA_DEBUG is not set
-CONFIG_QUOTA_TREE=y
-# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
-CONFIG_QUOTACTL=y
-# CONFIG_AUTOFS4_FS is not set
+CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
-CONFIG_GENERIC_ACL=y
-
-#
-# Caches
-#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
-# CONFIG_FSCACHE_HISTOGRAM is not set
-# CONFIG_FSCACHE_DEBUG is not set
-# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
-# CONFIG_CACHEFILES_DEBUG is not set
-# CONFIG_CACHEFILES_HISTOGRAM is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
-CONFIG_UDF_NLS=y
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
-CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_PROC_PAGE_MONITOR=y
-CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-CONFIG_CONFIGFS_FS=m
-CONFIG_MISC_FILESYSTEMS=y
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_LOGFS is not set
CONFIG_CRAMFS=m
CONFIG_SQUASHFS=m
-# CONFIG_SQUASHFS_XATTR is not set
-# CONFIG_SQUASHFS_LZO is not set
-# CONFIG_SQUASHFS_XZ is not set
-# CONFIG_SQUASHFS_EMBEDDED is not set
-CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
-# CONFIG_VXFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_OMFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_PSTORE is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFS_V4_1=y
-CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_NFS_FSCACHE=y
-# CONFIG_NFS_USE_LEGACY_DNS is not set
-CONFIG_NFS_USE_KERNEL_DNS=y
-# CONFIG_NFS_USE_NEW_IDMAPPER is not set
CONFIG_NFSD=m
-CONFIG_NFSD_V2_ACL=y
-CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
-CONFIG_LOCKD=m
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_ACL_SUPPORT=m
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=m
-CONFIG_SUNRPC_GSS=m
-CONFIG_RPCSEC_GSS_KRB5=m
-# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS=y
-# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
-# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_DFS_UPCALL=y
CONFIG_CIFS_FSCACHE=y
-# CONFIG_CIFS_ACL is not set
-CONFIG_CIFS_EXPERIMENTAL=y
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-CONFIG_OSF_PARTITION=y
-CONFIG_AMIGA_PARTITION=y
-# CONFIG_ATARI_PARTITION is not set
-CONFIG_MAC_PARTITION=y
-CONFIG_MSDOS_PARTITION=y
-CONFIG_BSD_DISKLABEL=y
-CONFIG_MINIX_SUBPARTITION=y
-CONFIG_SOLARIS_X86_PARTITION=y
-CONFIG_UNIXWARE_DISKLABEL=y
-# CONFIG_LDM_PARTITION is not set
-CONFIG_SGI_PARTITION=y
-# CONFIG_ULTRIX_PARTITION is not set
-CONFIG_SUN_PARTITION=y
-CONFIG_KARMA_PARTITION=y
-CONFIG_EFI_PARTITION=y
-# CONFIG_SYSV68_PARTITION is not set
-CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
@@ -1567,185 +521,47 @@
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
-CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_ENABLE_WARN_DEPRECATED is not set
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
-# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
-# CONFIG_DEBUG_SECTION_MISMATCH is not set
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_SHIRQ=y
CONFIG_LOCKUP_DETECTOR=y
-# CONFIG_HARDLOCKUP_DETECTOR is not set
-# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set
-CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=0
-# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
-CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
-CONFIG_DETECT_HUNG_TASK=y
-# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
-CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
-CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
-# CONFIG_DEBUG_OBJECTS is not set
-# CONFIG_SLUB_DEBUG_ON is not set
-# CONFIG_SLUB_STATS is not set
-# CONFIG_DEBUG_KMEMLEAK is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_LOCK_ALLOC is not set
-# CONFIG_PROVE_LOCKING is not set
-# CONFIG_SPARSE_RCU_POINTER is not set
-# CONFIG_LOCK_STAT is not set
-CONFIG_DEBUG_SPINLOCK_SLEEP=y
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-CONFIG_STACKTRACE=y
-# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
CONFIG_DEBUG_VM=y
-# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_LIST=y
-# CONFIG_TEST_LIST_SORT is not set
-# CONFIG_DEBUG_SG is not set
-# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_DEBUG_CREDENTIALS=y
-# CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-# CONFIG_BACKTRACE_SELF_TEST is not set
-# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
-# CONFIG_LKDTM is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SYSCTL_SYSCALL_CHECK is not set
-# CONFIG_DEBUG_PAGEALLOC is not set
-CONFIG_TRACING_SUPPORT=y
-CONFIG_FTRACE=y
-# CONFIG_IRQSOFF_TRACER is not set
-# CONFIG_SCHED_TRACER is not set
-# CONFIG_ENABLE_DEFAULT_TRACERS is not set
-CONFIG_BRANCH_PROFILE_NONE=y
-# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
-# CONFIG_PROFILE_ALL_BRANCHES is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_BUILD_DOCSRC is not set
CONFIG_DYNAMIC_DEBUG=y
-# CONFIG_ATOMIC64_SELFTEST is not set
CONFIG_ASYNC_RAID6_TEST=m
-# CONFIG_SAMPLES is not set
-# CONFIG_TEST_KSTRTOX is not set
-CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_STACKOVERFLOW=y
-# CONFIG_DEBUG_STACK_USAGE is not set
-CONFIG_DEBUG_EXTRA_FLAGS=""
-
-#
-# Security options
-#
-CONFIG_KEYS=y
CONFIG_KEYS_DEBUG_PROC_KEYS=y
-# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
-# CONFIG_SECURITY_PATH is not set
-CONFIG_LSM_MMAP_MIN_ADDR=65536
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
-CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
CONFIG_SECURITY_SELINUX_DISABLE=y
-CONFIG_SECURITY_SELINUX_DEVELOP=y
-CONFIG_SECURITY_SELINUX_AVC_STATS=y
-CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
-# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
-# CONFIG_SECURITY_SMACK is not set
-# CONFIG_SECURITY_TOMOYO is not set
-# CONFIG_SECURITY_APPARMOR is not set
-# CONFIG_IMA is not set
-CONFIG_DEFAULT_SECURITY_SELINUX=y
-# CONFIG_DEFAULT_SECURITY_DAC is not set
-CONFIG_DEFAULT_SECURITY="selinux"
-CONFIG_XOR_BLOCKS=m
-CONFIG_ASYNC_CORE=m
-CONFIG_ASYNC_MEMCPY=m
-CONFIG_ASYNC_XOR=m
-CONFIG_ASYNC_PQ=m
-CONFIG_ASYNC_RAID6_RECOV=m
-CONFIG_CRYPTO=y
-
-#
-# Crypto core or helper
-#
-CONFIG_CRYPTO_ALGAPI=y
-CONFIG_CRYPTO_ALGAPI2=y
-CONFIG_CRYPTO_AEAD=m
-CONFIG_CRYPTO_AEAD2=y
-CONFIG_CRYPTO_BLKCIPHER=m
-CONFIG_CRYPTO_BLKCIPHER2=y
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_HASH2=y
-CONFIG_CRYPTO_RNG=m
-CONFIG_CRYPTO_RNG2=y
-CONFIG_CRYPTO_PCOMP=m
-CONFIG_CRYPTO_PCOMP2=y
-CONFIG_CRYPTO_MANAGER=y
-CONFIG_CRYPTO_MANAGER2=y
-CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
-CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_PCRYPT=m
-CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=m
-CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
-
-#
-# Authenticated Encryption with Associated Data
-#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
-CONFIG_CRYPTO_SEQIV=m
-
-#
-# Block modes
-#
-CONFIG_CRYPTO_CBC=m
-CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
-CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
-
-#
-# Hash modes
-#
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-
-#
-# Digest
-#
CONFIG_CRYPTO_CRC32C=y
-CONFIG_CRYPTO_GHASH=m
-CONFIG_CRYPTO_MD4=m
-CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -1756,76 +572,16 @@
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
-
-#
-# Ciphers
-#
-CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
-CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
-# CONFIG_CRYPTO_SALSA20 is not set
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_TWOFISH_COMMON=m
-
-#
-# Compression
-#
-CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
-
-#
-# Random Number Generation
-#
-CONFIG_CRYPTO_ANSI_CPRNG=m
-# CONFIG_CRYPTO_USER_API_HASH is not set
-# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
-CONFIG_CRYPTO_HW=y
-CONFIG_CRYPTO_DEV_HIFN_795X=m
-CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y
-# CONFIG_BINARY_PRINTF is not set
-
-#
-# Library routines
-#
-CONFIG_RAID6_PQ=m
-CONFIG_BITREVERSE=y
-CONFIG_GENERIC_FIND_FIRST_BIT=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_FIND_LAST_BIT=y
-# CONFIG_CRC_CCITT is not set
-CONFIG_CRC16=y
-CONFIG_CRC_T10DIF=y
-CONFIG_CRC_ITU_T=m
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-CONFIG_LIBCRC32C=m
-CONFIG_AUDIT_GENERIC=y
-CONFIG_ZLIB_INFLATE=y
-CONFIG_ZLIB_DEFLATE=m
-CONFIG_LZO_COMPRESS=m
-CONFIG_LZO_DECOMPRESS=m
-# CONFIG_XZ_DEC is not set
-# CONFIG_XZ_DEC_BCJ is not set
-CONFIG_DECOMPRESS_GZIP=y
-CONFIG_TEXTSEARCH=y
-CONFIG_TEXTSEARCH_KMP=m
-CONFIG_TEXTSEARCH_BM=m
-CONFIG_TEXTSEARCH_FSM=m
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
-CONFIG_CPU_RMAP=y
-CONFIG_NLATTR=y
-# CONFIG_AVERAGE is not set
-# CONFIG_VIRTUALIZATION is not set
diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig
index 6f05f96..2b1fd31 100644
--- a/arch/tile/configs/tilepro_defconfig
+++ b/arch/tile/configs/tilepro_defconfig
@@ -1,1162 +1,579 @@
-#
-# Automatically generated make config: don't edit
-# Linux/tile 2.6.39-rc5 Kernel Configuration
-# Tue May 3 09:15:02 2011
-#
-CONFIG_TILE=y
-CONFIG_MMU=y
-CONFIG_GENERIC_CSUM=y
-CONFIG_SEMAPHORE_SLEEPERS=y
-CONFIG_HAVE_ARCH_ALLOC_REMAP=y
-CONFIG_HAVE_SETUP_PER_CPU_AREA=y
-CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
-CONFIG_SYS_SUPPORTS_HUGETLBFS=y
-CONFIG_GENERIC_CLOCKEVENTS=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_DEFAULT_MIGRATION_COST=10000000
-CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
-CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
-CONFIG_ARCH_DMA_ADDR_T_64BIT=y
-CONFIG_LOCKDEP_SUPPORT=y
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
-CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-CONFIG_STRICT_DEVMEM=y
-CONFIG_SMP=y
-# CONFIG_DEBUG_COPY_FROM_USER is not set
-CONFIG_HVC_TILE=y
-# CONFIG_TILEGX is not set
-CONFIG_ARCH_DEFCONFIG="arch/tile/configs/tile_defconfig"
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-CONFIG_CONSTRUCTORS=y
-
-#
-# General setup
-#
CONFIG_EXPERIMENTAL=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_CROSS_COMPILE=""
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-# CONFIG_SWAP is not set
+# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
-CONFIG_SYSVIPC_SYSCTL=y
-# CONFIG_POSIX_MQUEUE is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_FHANDLE=y
-# CONFIG_TASKSTATS is not set
-# CONFIG_AUDIT is not set
-CONFIG_HAVE_GENERIC_HARDIRQS=y
-
-#
-# IRQ subsystem
-#
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_GENERIC_IRQ_SHOW=y
-CONFIG_GENERIC_PENDING_IRQ=y
-
-#
-# RCU Subsystem
-#
-CONFIG_TREE_RCU=y
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_RCU_TRACE is not set
-CONFIG_RCU_FANOUT=32
-# CONFIG_RCU_FANOUT_EXACT is not set
-# CONFIG_RCU_FAST_NO_HZ is not set
-# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=17
-# CONFIG_CGROUPS is not set
-# CONFIG_NAMESPACES is not set
-# CONFIG_SCHED_AUTOGROUP is not set
-# CONFIG_SYSFS_DEPRECATED is not set
-# CONFIG_RELAY is not set
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_AUDIT=y
+CONFIG_LOG_BUF_SHIFT=19
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_DEBUG=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_CGROUP_MEM_RES_CTLR=y
+CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_BLK_CGROUP=y
+CONFIG_NAMESPACES=y
+CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="usr/contents.txt"
-CONFIG_INITRAMFS_ROOT_UID=0
-CONFIG_INITRAMFS_ROOT_GID=0
-CONFIG_RD_GZIP=y
-# CONFIG_RD_BZIP2 is not set
-# CONFIG_RD_LZMA is not set
-# CONFIG_RD_XZ is not set
-# CONFIG_RD_LZO is not set
-CONFIG_INITRAMFS_COMPRESSION_NONE=y
-# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_SYSCTL=y
-CONFIG_ANON_INODES=y
-CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_AIO=y
CONFIG_EMBEDDED=y
-
-#
-# Kernel Performance Events And Counters
-#
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_PCI_QUIRKS=y
-CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
-# CONFIG_SLAB is not set
-CONFIG_SLUB=y
-# CONFIG_SLOB is not set
CONFIG_PROFILING=y
-CONFIG_USE_GENERIC_SMP_HELPERS=y
-
-#
-# GCOV-based kernel profiling
-#
-# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
-CONFIG_SLABINFO=y
-CONFIG_RT_MUTEXES=y
-CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
-# CONFIG_MODULE_FORCE_LOAD is not set
+CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_STOP_MACHINE=y
-CONFIG_BLOCK=y
-CONFIG_LBDAF=y
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_BLK_DEV_INTEGRITY is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-CONFIG_DEFAULT_NOOP=y
-CONFIG_DEFAULT_IOSCHED="noop"
-# CONFIG_INLINE_SPIN_TRYLOCK is not set
-# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
-# CONFIG_INLINE_SPIN_LOCK is not set
-# CONFIG_INLINE_SPIN_LOCK_BH is not set
-# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
-# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
-CONFIG_INLINE_SPIN_UNLOCK=y
-# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
-CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
-# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
-# CONFIG_INLINE_READ_TRYLOCK is not set
-# CONFIG_INLINE_READ_LOCK is not set
-# CONFIG_INLINE_READ_LOCK_BH is not set
-# CONFIG_INLINE_READ_LOCK_IRQ is not set
-# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
-CONFIG_INLINE_READ_UNLOCK=y
-# CONFIG_INLINE_READ_UNLOCK_BH is not set
-CONFIG_INLINE_READ_UNLOCK_IRQ=y
-# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
-# CONFIG_INLINE_WRITE_TRYLOCK is not set
-# CONFIG_INLINE_WRITE_LOCK is not set
-# CONFIG_INLINE_WRITE_LOCK_BH is not set
-# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
-# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
-CONFIG_INLINE_WRITE_UNLOCK=y
-# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
-CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
-# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
-CONFIG_MUTEX_SPIN_ON_OWNER=y
-
-#
-# Tilera-specific configuration
-#
-CONFIG_NR_CPUS=64
-CONFIG_TICK_ONESHOT=y
+CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_OSF_PARTITION=y
+CONFIG_AMIGA_PARTITION=y
+CONFIG_MAC_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_SGI_PARTITION=y
+CONFIG_SUN_PARTITION=y
+CONFIG_KARMA_PARTITION=y
+CONFIG_EFI_PARTITION=y
+CONFIG_CFQ_GROUP_IOSCHED=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
-CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_HZ_100=y
-# CONFIG_HZ_250 is not set
-# CONFIG_HZ_300 is not set
-# CONFIG_HZ_1000 is not set
-CONFIG_HZ=100
-CONFIG_SCHED_HRTICK=y
-# CONFIG_KEXEC is not set
-CONFIG_HIGHMEM=y
-CONFIG_NUMA=y
-CONFIG_NODES_SHIFT=2
-# CONFIG_VMSPLIT_3_75G is not set
-# CONFIG_VMSPLIT_3_5G is not set
-CONFIG_VMSPLIT_3G=y
-# CONFIG_VMSPLIT_2_75G is not set
-# CONFIG_VMSPLIT_2_5G is not set
-# CONFIG_VMSPLIT_2_25G is not set
-# CONFIG_VMSPLIT_2G is not set
-# CONFIG_VMSPLIT_1G is not set
-CONFIG_PAGE_OFFSET=0xC0000000
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_DISCONTIGMEM_MANUAL=y
-CONFIG_DISCONTIGMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-CONFIG_NEED_MULTIPLE_NODES=y
-CONFIG_PAGEFLAGS_EXTENDED=y
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_COMPACTION is not set
-CONFIG_MIGRATION=y
-CONFIG_PHYS_ADDR_T_64BIT=y
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_BOUNCE=y
-CONFIG_VIRT_TO_BUS=y
-# CONFIG_KSM is not set
-CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
-# CONFIG_CMDLINE_BOOL is not set
-CONFIG_VMALLOC_RESERVE=0x1000000
-CONFIG_HARDWALL=y
-CONFIG_KERNEL_PL=1
-
-#
-# Bus options
-#
-CONFIG_PCI=y
-CONFIG_PCI_DOMAINS=y
-# CONFIG_NO_IOMEM is not set
-# CONFIG_NO_IOPORT is not set
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCI_DEBUG is not set
-# CONFIG_PCI_STUB is not set
-# CONFIG_PCI_IOV is not set
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_KCORE_ELF=y
-CONFIG_BINFMT_ELF=y
+CONFIG_PCI_DEBUG=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-# CONFIG_HAVE_AOUT is not set
-# CONFIG_BINFMT_MISC is not set
+CONFIG_BINFMT_MISC=y
CONFIG_NET=y
-
-#
-# Networking options
-#
CONFIG_PACKET=y
CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-# CONFIG_XFRM_STATISTICS is not set
-# CONFIG_NET_KEY is not set
+CONFIG_XFRM_USER=y
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_NET_KEY=m
+CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE_DEMUX is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-CONFIG_INET_TUNNEL=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_BEET=y
-# CONFIG_INET_LRO is not set
-# CONFIG_INET_DIAG is not set
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_NET_IPIP=m
+CONFIG_IP_MROUTE=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=m
+CONFIG_INET_XFRM_MODE_TUNNEL=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_DIAG=m
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_CONG_HSTCP=m
+CONFIG_TCP_CONG_HYBLA=m
+CONFIG_TCP_CONG_SCALABLE=m
+CONFIG_TCP_CONG_LP=m
+CONFIG_TCP_CONG_VENO=m
+CONFIG_TCP_CONG_YEAH=m
+CONFIG_TCP_CONG_ILLINOIS=m
+CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
-# CONFIG_IPV6_PRIVACY is not set
-# CONFIG_IPV6_ROUTER_PREF is not set
-# CONFIG_IPV6_OPTIMISTIC_DAD is not set
-# CONFIG_INET6_AH is not set
-# CONFIG_INET6_ESP is not set
-# CONFIG_INET6_IPCOMP is not set
-# CONFIG_IPV6_MIP6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-CONFIG_INET6_XFRM_MODE_TRANSPORT=y
-CONFIG_INET6_XFRM_MODE_TUNNEL=y
-CONFIG_INET6_XFRM_MODE_BEET=y
-# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
-CONFIG_IPV6_SIT=y
-# CONFIG_IPV6_SIT_6RD is not set
-CONFIG_IPV6_NDISC_NODETYPE=y
-# CONFIG_IPV6_TUNNEL is not set
-# CONFIG_IPV6_MULTIPLE_TABLES is not set
-# CONFIG_IPV6_MROUTE is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_IP_DCCP is not set
-# CONFIG_IP_SCTP is not set
-# CONFIG_RDS is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_L2TP is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_NET_DSA is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_PHONET is not set
-# CONFIG_IEEE802154 is not set
-# CONFIG_NET_SCHED is not set
-# CONFIG_DCB is not set
-# CONFIG_BATMAN_ADV is not set
-CONFIG_RPS=y
-CONFIG_RFS_ACCEL=y
-CONFIG_XPS=y
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_CAN is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
+CONFIG_IPV6_PRIVACY=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_OPTIMISTIC_DAD=y
+CONFIG_INET6_AH=m
+CONFIG_INET6_ESP=m
+CONFIG_INET6_IPCOMP=m
+CONFIG_IPV6_MIP6=m
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_BEET=m
+CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_TUNNEL=m
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_PIMSM_V2=y
+CONFIG_NETLABEL=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_ZONES=y
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CT_PROTO_DCCP=m
+CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CONNTRACK_AMANDA=m
+CONFIG_NF_CONNTRACK_FTP=m
+CONFIG_NF_CONNTRACK_H323=m
+CONFIG_NF_CONNTRACK_IRC=m
+CONFIG_NF_CONNTRACK_NETBIOS_NS=m
+CONFIG_NF_CONNTRACK_PPTP=m
+CONFIG_NF_CONNTRACK_SANE=m
+CONFIG_NF_CONNTRACK_SIP=m
+CONFIG_NF_CONNTRACK_TFTP=m
+CONFIG_NETFILTER_TPROXY=m
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
+CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
+CONFIG_NETFILTER_XT_TARGET_CT=m
+CONFIG_NETFILTER_XT_TARGET_DSCP=m
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
+CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NFLOG=m
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
+CONFIG_NETFILTER_XT_TARGET_TEE=m
+CONFIG_NETFILTER_XT_TARGET_TPROXY=m
+CONFIG_NETFILTER_XT_TARGET_TRACE=m
+CONFIG_NETFILTER_XT_TARGET_SECMARK=m
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
+CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
+CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
+CONFIG_NETFILTER_XT_MATCH_COMMENT=m
+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+CONFIG_NETFILTER_XT_MATCH_DCCP=m
+CONFIG_NETFILTER_XT_MATCH_DSCP=m
+CONFIG_NETFILTER_XT_MATCH_ESP=m
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
+CONFIG_NETFILTER_XT_MATCH_IPVS=m
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_LIMIT=m
+CONFIG_NETFILTER_XT_MATCH_MAC=m
+CONFIG_NETFILTER_XT_MATCH_MARK=m
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
+CONFIG_NETFILTER_XT_MATCH_OSF=m
+CONFIG_NETFILTER_XT_MATCH_OWNER=m
+CONFIG_NETFILTER_XT_MATCH_POLICY=m
+CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
+CONFIG_NETFILTER_XT_MATCH_QUOTA=m
+CONFIG_NETFILTER_XT_MATCH_RATEEST=m
+CONFIG_NETFILTER_XT_MATCH_REALM=m
+CONFIG_NETFILTER_XT_MATCH_RECENT=m
+CONFIG_NETFILTER_XT_MATCH_SOCKET=m
+CONFIG_NETFILTER_XT_MATCH_STATE=m
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
+CONFIG_NETFILTER_XT_MATCH_STRING=m
+CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NETFILTER_XT_MATCH_U32=m
+CONFIG_IP_VS=m
+CONFIG_IP_VS_IPV6=y
+CONFIG_IP_VS_PROTO_TCP=y
+CONFIG_IP_VS_PROTO_UDP=y
+CONFIG_IP_VS_PROTO_ESP=y
+CONFIG_IP_VS_PROTO_AH=y
+CONFIG_IP_VS_PROTO_SCTP=y
+CONFIG_IP_VS_RR=m
+CONFIG_IP_VS_WRR=m
+CONFIG_IP_VS_LC=m
+CONFIG_IP_VS_WLC=m
+CONFIG_IP_VS_LBLC=m
+CONFIG_IP_VS_LBLCR=m
+CONFIG_IP_VS_SED=m
+CONFIG_IP_VS_NQ=m
+CONFIG_NF_CONNTRACK_IPV4=m
+# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
+CONFIG_IP_NF_QUEUE=m
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_NF_MATCH_AH=m
+CONFIG_IP_NF_MATCH_ECN=m
+CONFIG_IP_NF_MATCH_TTL=m
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_TARGET_REJECT=y
+CONFIG_IP_NF_TARGET_LOG=m
+CONFIG_IP_NF_TARGET_ULOG=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_IP_NF_TARGET_ECN=m
+CONFIG_IP_NF_TARGET_TTL=m
+CONFIG_IP_NF_RAW=m
+CONFIG_IP_NF_SECURITY=m
+CONFIG_IP_NF_ARPTABLES=m
+CONFIG_IP_NF_ARPFILTER=m
+CONFIG_IP_NF_ARP_MANGLE=m
+CONFIG_NF_CONNTRACK_IPV6=m
+CONFIG_IP6_NF_QUEUE=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_MATCH_AH=m
+CONFIG_IP6_NF_MATCH_EUI64=m
+CONFIG_IP6_NF_MATCH_FRAG=m
+CONFIG_IP6_NF_MATCH_OPTS=m
+CONFIG_IP6_NF_MATCH_HL=m
+CONFIG_IP6_NF_MATCH_IPV6HEADER=m
+CONFIG_IP6_NF_MATCH_MH=m
+CONFIG_IP6_NF_MATCH_RT=m
+CONFIG_IP6_NF_TARGET_HL=m
+CONFIG_IP6_NF_TARGET_LOG=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_TARGET_REJECT=m
+CONFIG_IP6_NF_MANGLE=m
+CONFIG_IP6_NF_RAW=m
+CONFIG_IP6_NF_SECURITY=m
+CONFIG_BRIDGE_NF_EBTABLES=m
+CONFIG_BRIDGE_EBT_BROUTE=m
+CONFIG_BRIDGE_EBT_T_FILTER=m
+CONFIG_BRIDGE_EBT_T_NAT=m
+CONFIG_BRIDGE_EBT_802_3=m
+CONFIG_BRIDGE_EBT_AMONG=m
+CONFIG_BRIDGE_EBT_ARP=m
+CONFIG_BRIDGE_EBT_IP=m
+CONFIG_BRIDGE_EBT_IP6=m
+CONFIG_BRIDGE_EBT_LIMIT=m
+CONFIG_BRIDGE_EBT_MARK=m
+CONFIG_BRIDGE_EBT_PKTTYPE=m
+CONFIG_BRIDGE_EBT_STP=m
+CONFIG_BRIDGE_EBT_VLAN=m
+CONFIG_BRIDGE_EBT_ARPREPLY=m
+CONFIG_BRIDGE_EBT_DNAT=m
+CONFIG_BRIDGE_EBT_MARK_T=m
+CONFIG_BRIDGE_EBT_REDIRECT=m
+CONFIG_BRIDGE_EBT_SNAT=m
+CONFIG_BRIDGE_EBT_LOG=m
+CONFIG_BRIDGE_EBT_ULOG=m
+CONFIG_BRIDGE_EBT_NFLOG=m
+CONFIG_RDS=m
+CONFIG_RDS_TCP=m
+CONFIG_BRIDGE=m
+CONFIG_NET_DSA=y
+CONFIG_VLAN_8021Q=m
+CONFIG_VLAN_8021Q_GVRP=y
+CONFIG_PHONET=m
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_CBQ=m
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_HFSC=m
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_MULTIQ=m
+CONFIG_NET_SCH_RED=m
+CONFIG_NET_SCH_SFQ=m
+CONFIG_NET_SCH_TEQL=m
+CONFIG_NET_SCH_TBF=m
+CONFIG_NET_SCH_GRED=m
+CONFIG_NET_SCH_DSMARK=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NET_SCH_DRR=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_TCINDEX=m
+CONFIG_NET_CLS_ROUTE4=m
+CONFIG_NET_CLS_FW=m
+CONFIG_NET_CLS_U32=m
+CONFIG_CLS_U32_PERF=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_CLS_RSVP=m
+CONFIG_NET_CLS_RSVP6=m
+CONFIG_NET_CLS_FLOW=m
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NET_EMATCH=y
+CONFIG_NET_EMATCH_CMP=m
+CONFIG_NET_EMATCH_NBYTE=m
+CONFIG_NET_EMATCH_U32=m
+CONFIG_NET_EMATCH_META=m
+CONFIG_NET_EMATCH_TEXT=m
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_ACT_POLICE=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_GACT_PROB=y
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_IPT=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_SIMP=m
+CONFIG_NET_ACT_SKBEDIT=m
+CONFIG_NET_CLS_IND=y
+CONFIG_DCB=y
# CONFIG_WIRELESS is not set
-# CONFIG_WIMAX is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-# CONFIG_CAIF is not set
-# CONFIG_CEPH_LIB is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-# CONFIG_DEVTMPFS is not set
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=y
-CONFIG_FIRMWARE_IN_KERNEL=y
-CONFIG_EXTRA_FIRMWARE=""
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-CONFIG_BLK_DEV=y
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-# CONFIG_BLK_DEV_LOOP is not set
-
-#
-# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
-#
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-# CONFIG_BLK_DEV_RAM is not set
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-# CONFIG_BLK_DEV_RBD is not set
-# CONFIG_SENSORS_LIS3LV02D is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_PHANTOM is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-# CONFIG_ENCLOSURE_SERVICES is not set
-# CONFIG_HP_ILO is not set
-# CONFIG_PCH_PHUB is not set
-# CONFIG_C2PORT is not set
-
-#
-# EEPROM support
-#
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_CB710_CORE is not set
-
-#
-# Texas Instruments shared transport line discipline
-#
-
-#
-# SCSI device support
-#
-CONFIG_SCSI_MOD=y
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_DMA=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_CONNECTOR=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_CRYPTOLOOP=m
+CONFIG_BLK_DEV_SX8=m
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=16384
+CONFIG_ATA_OVER_ETH=m
+CONFIG_RAID_ATTRS=m
+CONFIG_SCSI_TGT=m
CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
-# CONFIG_SCSI_SCAN_ASYNC is not set
-CONFIG_SCSI_WAIT_SCAN=m
-
-#
-# SCSI Transports
-#
-# CONFIG_SCSI_SPI_ATTRS is not set
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-# CONFIG_SCSI_SRP_ATTRS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_ISCSI_BOOT_SYSFS is not set
-# CONFIG_SCSI_CXGB3_ISCSI is not set
-# CONFIG_SCSI_CXGB4_ISCSI is not set
-# CONFIG_SCSI_BNX2_ISCSI is not set
-# CONFIG_SCSI_BNX2X_FCOE is not set
-# CONFIG_BE2ISCSI is not set
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_HPSA is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_3W_SAS is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_AIC94XX is not set
-# CONFIG_SCSI_MVSAS is not set
-# CONFIG_SCSI_DPT_I2O is not set
-# CONFIG_SCSI_ADVANSYS is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_MPT2SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_LIBFC is not set
-# CONFIG_LIBFCOE is not set
-# CONFIG_FCOE is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_STEX is not set
-# CONFIG_SCSI_SYM53C8XX_2 is not set
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_NSP32 is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_PMCRAID is not set
-# CONFIG_SCSI_PM8001 is not set
-# CONFIG_SCSI_SRP is not set
-# CONFIG_SCSI_BFA_FC is not set
-# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
-# CONFIG_SCSI_DH is not set
-# CONFIG_SCSI_OSD_INITIATOR is not set
-# CONFIG_ATA is not set
-# CONFIG_MD is not set
-# CONFIG_TARGET_CORE is not set
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_FIREWIRE is not set
-# CONFIG_FIREWIRE_NOSY is not set
-# CONFIG_I2O is not set
+CONFIG_ATA=y
+CONFIG_SATA_SIL24=y
+# CONFIG_ATA_SFF is not set
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=y
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_MD_RAID1=m
+CONFIG_MD_RAID10=m
+CONFIG_MD_RAID456=m
+CONFIG_MULTICORE_RAID456=y
+CONFIG_MD_FAULTY=m
+CONFIG_BLK_DEV_DM=m
+CONFIG_DM_DEBUG=y
+CONFIG_DM_CRYPT=m
+CONFIG_DM_SNAPSHOT=m
+CONFIG_DM_MIRROR=m
+CONFIG_DM_LOG_USERSPACE=m
+CONFIG_DM_ZERO=m
+CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_DELAY=m
+CONFIG_DM_UEVENT=y
+CONFIG_FUSION=y
+CONFIG_FUSION_SAS=y
CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_MACVLAN is not set
-# CONFIG_EQUALIZER is not set
+CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_IFB=m
+CONFIG_MACVLAN=m
+CONFIG_MACVTAP=m
+CONFIG_NETCONSOLE=m
+CONFIG_NETCONSOLE_DYNAMIC=y
+CONFIG_NETPOLL_TRAP=y
CONFIG_TUN=y
-# CONFIG_VETH is not set
-# CONFIG_ARCNET is not set
-# CONFIG_MII is not set
-# CONFIG_PHYLIB is not set
-# CONFIG_NET_ETHERNET is not set
-CONFIG_NETDEV_1000=y
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_E1000E is not set
-# CONFIG_IP1000 is not set
-# CONFIG_IGB is not set
-# CONFIG_IGBVF is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-# CONFIG_CNIC is not set
-# CONFIG_QLA3XXX is not set
-# CONFIG_ATL1 is not set
-# CONFIG_ATL1E is not set
-# CONFIG_ATL1C is not set
-# CONFIG_JME is not set
-# CONFIG_STMMAC_ETH is not set
-# CONFIG_PCH_GBE is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_TR is not set
+CONFIG_VETH=m
+CONFIG_NET_DSA_MV88E6060=y
+CONFIG_NET_DSA_MV88E6131=y
+CONFIG_NET_DSA_MV88E6123_61_65=y
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_ADAPTEC is not set
+# CONFIG_NET_VENDOR_ALTEON is not set
+# CONFIG_NET_VENDOR_AMD is not set
+# CONFIG_NET_VENDOR_ATHEROS is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_BROCADE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_CISCO is not set
+# CONFIG_NET_VENDOR_DEC is not set
+# CONFIG_NET_VENDOR_DLINK is not set
+# CONFIG_NET_VENDOR_EMULEX is not set
+# CONFIG_NET_VENDOR_EXAR is not set
+# CONFIG_NET_VENDOR_HP is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MYRI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NVIDIA is not set
+# CONFIG_NET_VENDOR_OKI is not set
+# CONFIG_NET_PACKET_ENGINE is not set
+# CONFIG_NET_VENDOR_QLOGIC is not set
+# CONFIG_NET_VENDOR_REALTEK is not set
+# CONFIG_NET_VENDOR_RDC is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SILAN is not set
+# CONFIG_NET_VENDOR_SIS is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SUN is not set
+# CONFIG_NET_VENDOR_TEHUTI is not set
+# CONFIG_NET_VENDOR_TI is not set
+# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_WLAN is not set
-
-#
-# Enable WiMAX (Networking options) to see the WiMAX drivers
-#
-# CONFIG_WAN is not set
-
-#
-# CAIF transport drivers
-#
-CONFIG_TILE_NET=y
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_NET_FC is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_VMXNET3 is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-# CONFIG_INPUT_SPARSEKMAP is not set
-
-#
-# Userland interfaces
-#
# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
# CONFIG_VT is not set
-CONFIG_UNIX98_PTYS=y
-# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-# CONFIG_NOZOMI is not set
-# CONFIG_N_GSM is not set
-CONFIG_DEVKMEM=y
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-# CONFIG_SERIAL_MFD_HSU is not set
-# CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_TIMBERDALE is not set
-# CONFIG_SERIAL_ALTERA_JTAGUART is not set
-# CONFIG_SERIAL_ALTERA_UART is not set
-# CONFIG_SERIAL_PCH_UART is not set
-# CONFIG_TTY_PRINTK is not set
-CONFIG_HVC_DRIVER=y
-# CONFIG_IPMI_HANDLER is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# PCMCIA character devices
-#
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-CONFIG_DEVPORT=y
-# CONFIG_RAMOOPS is not set
-# CONFIG_I2C is not set
-# CONFIG_SPI is not set
-
-#
-# PPS support
-#
-# CONFIG_PPS is not set
-
-#
-# PPS generators support
-#
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-
-#
-# Native drivers
-#
-# CONFIG_SENSORS_I5K_AMB is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_F71882FG is not set
-# CONFIG_SENSORS_IT87 is not set
-# CONFIG_SENSORS_PC87360 is not set
-# CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_SIS5595 is not set
-# CONFIG_SENSORS_SMSC47M1 is not set
-# CONFIG_SENSORS_SMSC47B397 is not set
-# CONFIG_SENSORS_SCH5627 is not set
-# CONFIG_SENSORS_VIA686A is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_SENSORS_VT8231 is not set
-# CONFIG_SENSORS_W83627HF is not set
-# CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_THERMAL is not set
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_TIMERIOMEM=m
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
-
-#
-# Watchdog Device Drivers
-#
-# CONFIG_SOFT_WATCHDOG is not set
-# CONFIG_ALIM7101_WDT is not set
-
-#
-# PCI-based Watchdog Cards
-#
-# CONFIG_PCIPCWATCHDOG is not set
-# CONFIG_WDTPCI is not set
-CONFIG_SSB_POSSIBLE=y
-
-#
-# Sonics Silicon Backplane
-#
-# CONFIG_SSB is not set
-CONFIG_MFD_SUPPORT=y
-# CONFIG_MFD_CORE is not set
-# CONFIG_MFD_SM501 is not set
-# CONFIG_HTC_PASIC3 is not set
-# CONFIG_MFD_TMIO is not set
-# CONFIG_ABX500_CORE is not set
-# CONFIG_LPC_SCH is not set
-# CONFIG_MFD_RDC321X is not set
-# CONFIG_MFD_JANZ_CMODIO is not set
-# CONFIG_MFD_VX855 is not set
-# CONFIG_REGULATOR is not set
-# CONFIG_MEDIA_SUPPORT is not set
-
-#
-# Graphics support
-#
-CONFIG_VGA_ARB=y
-CONFIG_VGA_ARB_MAX_GPUS=16
-# CONFIG_DRM is not set
-# CONFIG_STUB_POULSBO is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_VIDEO_OUTPUT_CONTROL is not set
-# CONFIG_FB is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_SOUND is not set
+# CONFIG_VGA_ARB is not set
# CONFIG_HID_SUPPORT is not set
-CONFIG_USB_SUPPORT=y
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-# CONFIG_USB is not set
-# CONFIG_USB_OTG_WHITELIST is not set
-# CONFIG_USB_OTG_BLACKLIST_HUB is not set
-
-#
-# Enable Host or Gadget support to see Inventra options
-#
-
-#
-# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# OTG and related infrastructure
-#
-# CONFIG_UWB is not set
-# CONFIG_MMC is not set
-# CONFIG_MEMSTICK is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_NFC_DEVICES is not set
-# CONFIG_ACCESSIBILITY is not set
-# CONFIG_INFINIBAND is not set
+# CONFIG_USB_SUPPORT is not set
CONFIG_EDAC=y
-
-#
-# Reporting subsystems
-#
-# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_MM_EDAC=y
-CONFIG_EDAC_TILE=y
-CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
-CONFIG_RTC_HCTOSYS=y
-CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
-# CONFIG_RTC_DEBUG is not set
-
-#
-# RTC interfaces
-#
-# CONFIG_RTC_INTF_SYSFS is not set
-# CONFIG_RTC_INTF_PROC is not set
-CONFIG_RTC_INTF_DEV=y
-# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
-# CONFIG_RTC_DRV_TEST is not set
-
-#
-# SPI RTC drivers
-#
-
-#
-# Platform RTC drivers
-#
-# CONFIG_RTC_DRV_DS1286 is not set
-# CONFIG_RTC_DRV_DS1511 is not set
-# CONFIG_RTC_DRV_DS1553 is not set
-# CONFIG_RTC_DRV_DS1742 is not set
-# CONFIG_RTC_DRV_STK17TA8 is not set
-# CONFIG_RTC_DRV_M48T86 is not set
-# CONFIG_RTC_DRV_M48T35 is not set
-# CONFIG_RTC_DRV_M48T59 is not set
-# CONFIG_RTC_DRV_MSM6242 is not set
-# CONFIG_RTC_DRV_BQ4802 is not set
-# CONFIG_RTC_DRV_RP5C01 is not set
-# CONFIG_RTC_DRV_V3020 is not set
-
-#
-# on-CPU RTC drivers
-#
CONFIG_RTC_DRV_TILE=y
-# CONFIG_DMADEVICES is not set
-# CONFIG_AUXDISPLAY is not set
-# CONFIG_UIO is not set
-# CONFIG_STAGING is not set
-
-#
-# File systems
-#
CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4_FS is not set
-CONFIG_JBD=y
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_BTRFS_FS is not set
-# CONFIG_NILFS2_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-CONFIG_EXPORTFS=y
-CONFIG_FILE_LOCKING=y
-CONFIG_FSNOTIFY=y
-CONFIG_DNOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_FANOTIFY is not set
-# CONFIG_QUOTA is not set
-# CONFIG_QUOTACTL is not set
-# CONFIG_AUTOFS4_FS is not set
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_XFS_FS=y
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_GFS2_FS=m
+CONFIG_GFS2_FS_LOCKING_DLM=y
+CONFIG_BTRFS_FS=m
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_QUOTA=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+# CONFIG_PRINT_QUOTA_WARNING is not set
+CONFIG_QFMT_V2=y
+CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=y
-# CONFIG_CUSE is not set
-
-#
-# Caches
-#
-# CONFIG_FSCACHE is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=y
-CONFIG_MSDOS_FS=y
+CONFIG_CUSE=m
+CONFIG_FSCACHE=m
+CONFIG_FSCACHE_STATS=y
+CONFIG_CACHEFILES=m
+CONFIG_ISO9660_FS=m
+CONFIG_JOLIET=y
+CONFIG_ZISOFS=y
+CONFIG_UDF_FS=m
+CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
-CONFIG_FAT_DEFAULT_CODEPAGE=437
-CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-# CONFIG_PROC_KCORE is not set
-CONFIG_PROC_SYSCTL=y
-CONFIG_PROC_PAGE_MONITOR=y
-CONFIG_SYSFS=y
+CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
+CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
+CONFIG_TMPFS_POSIX_ACL=y
CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-# CONFIG_CONFIGFS_FS is not set
-CONFIG_MISC_FILESYSTEMS=y
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_LOGFS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_SQUASHFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_OMFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_PSTORE is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_ECRYPT_FS=m
+CONFIG_CRAMFS=m
+CONFIG_SQUASHFS=m
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFSD is not set
-CONFIG_LOCKD=m
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=m
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_CEPH_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_NFS_V4_1=y
+CONFIG_NFS_FSCACHE=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_CIFS=m
+CONFIG_CIFS_STATS=y
+CONFIG_CIFS_WEAK_PW_HASH=y
+CONFIG_CIFS_UPCALL=y
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+CONFIG_CIFS_DFS_UPCALL=y
+CONFIG_CIFS_FSCACHE=y
CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-# CONFIG_NLS_CODEPAGE_932 is not set
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ASCII is not set
-CONFIG_NLS_ISO8859_1=y
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
-CONFIG_ENABLE_WARN_DEPRECATED=y
-CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_NLS_CODEPAGE_737=m
+CONFIG_NLS_CODEPAGE_775=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_855=m
+CONFIG_NLS_CODEPAGE_857=m
+CONFIG_NLS_CODEPAGE_860=m
+CONFIG_NLS_CODEPAGE_861=m
+CONFIG_NLS_CODEPAGE_862=m
+CONFIG_NLS_CODEPAGE_863=m
+CONFIG_NLS_CODEPAGE_864=m
+CONFIG_NLS_CODEPAGE_865=m
+CONFIG_NLS_CODEPAGE_866=m
+CONFIG_NLS_CODEPAGE_869=m
+CONFIG_NLS_CODEPAGE_936=m
+CONFIG_NLS_CODEPAGE_950=m
+CONFIG_NLS_CODEPAGE_932=m
+CONFIG_NLS_CODEPAGE_949=m
+CONFIG_NLS_CODEPAGE_874=m
+CONFIG_NLS_ISO8859_8=m
+CONFIG_NLS_CODEPAGE_1250=m
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_ISO8859_3=m
+CONFIG_NLS_ISO8859_4=m
+CONFIG_NLS_ISO8859_5=m
+CONFIG_NLS_ISO8859_6=m
+CONFIG_NLS_ISO8859_7=m
+CONFIG_NLS_ISO8859_9=m
+CONFIG_NLS_ISO8859_13=m
+CONFIG_NLS_ISO8859_14=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_KOI8_R=m
+CONFIG_NLS_KOI8_U=m
+CONFIG_NLS_UTF8=m
+CONFIG_DLM_DEBUG=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
-# CONFIG_STRIP_ASM_SYMS is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_HEADERS_CHECK is not set
-# CONFIG_DEBUG_SECTION_MISMATCH is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-# CONFIG_LOCKUP_DETECTOR is not set
-# CONFIG_HARDLOCKUP_DETECTOR is not set
-CONFIG_DETECT_HUNG_TASK=y
-# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
-CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
-CONFIG_SCHED_DEBUG=y
-# CONFIG_SCHEDSTATS is not set
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_OBJECTS is not set
-# CONFIG_SLUB_DEBUG_ON is not set
-# CONFIG_SLUB_STATS is not set
-# CONFIG_DEBUG_KMEMLEAK is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_LOCK_ALLOC is not set
-# CONFIG_PROVE_LOCKING is not set
-# CONFIG_SPARSE_RCU_POINTER is not set
-# CONFIG_LOCK_STAT is not set
-CONFIG_DEBUG_SPINLOCK_SLEEP=y
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-CONFIG_STACKTRACE=y
-# CONFIG_DEBUG_KOBJECT is not set
-# CONFIG_DEBUG_HIGHMEM is not set
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_FS=y
+CONFIG_HEADERS_CHECK=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SCHEDSTATS=y
+CONFIG_TIMER_STATS=y
CONFIG_DEBUG_INFO=y
-# CONFIG_DEBUG_INFO_REDUCED is not set
+CONFIG_DEBUG_INFO_REDUCED=y
CONFIG_DEBUG_VM=y
-# CONFIG_DEBUG_WRITECOUNT is not set
-# CONFIG_DEBUG_MEMORY_INIT is not set
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_TEST_LIST_SORT is not set
-# CONFIG_DEBUG_SG is not set
-# CONFIG_DEBUG_NOTIFIERS is not set
-# CONFIG_DEBUG_CREDENTIALS is not set
-# CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-# CONFIG_BACKTRACE_SELF_TEST is not set
-# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
-# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SYSCTL_SYSCALL_CHECK is not set
-# CONFIG_DEBUG_PAGEALLOC is not set
-CONFIG_TRACING_SUPPORT=y
-CONFIG_FTRACE=y
-# CONFIG_IRQSOFF_TRACER is not set
-# CONFIG_SCHED_TRACER is not set
-# CONFIG_ENABLE_DEFAULT_TRACERS is not set
-CONFIG_BRANCH_PROFILE_NONE=y
-# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
-# CONFIG_PROFILE_ALL_BRANCHES is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_ATOMIC64_SELFTEST is not set
-# CONFIG_SAMPLES is not set
-# CONFIG_TEST_KSTRTOX is not set
-CONFIG_EARLY_PRINTK=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_CREDENTIALS=y
+CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
+CONFIG_DYNAMIC_DEBUG=y
+CONFIG_ASYNC_RAID6_TEST=m
CONFIG_DEBUG_STACKOVERFLOW=y
-# CONFIG_DEBUG_STACK_USAGE is not set
-CONFIG_DEBUG_EXTRA_FLAGS="-femit-struct-debug-baseonly"
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY_DMESG_RESTRICT is not set
-# CONFIG_SECURITY is not set
-# CONFIG_SECURITYFS is not set
-CONFIG_DEFAULT_SECURITY_DAC=y
-CONFIG_DEFAULT_SECURITY=""
-CONFIG_CRYPTO=y
-
-#
-# Crypto core or helper
-#
-# CONFIG_CRYPTO_FIPS is not set
-CONFIG_CRYPTO_ALGAPI=m
-CONFIG_CRYPTO_ALGAPI2=m
-CONFIG_CRYPTO_RNG=m
-CONFIG_CRYPTO_RNG2=m
-# CONFIG_CRYPTO_MANAGER is not set
-# CONFIG_CRYPTO_MANAGER2 is not set
-# CONFIG_CRYPTO_GF128MUL is not set
-# CONFIG_CRYPTO_NULL is not set
-# CONFIG_CRYPTO_PCRYPT is not set
-# CONFIG_CRYPTO_CRYPTD is not set
-# CONFIG_CRYPTO_AUTHENC is not set
-# CONFIG_CRYPTO_TEST is not set
-
-#
-# Authenticated Encryption with Associated Data
-#
-# CONFIG_CRYPTO_CCM is not set
-# CONFIG_CRYPTO_GCM is not set
-# CONFIG_CRYPTO_SEQIV is not set
-
-#
-# Block modes
-#
-# CONFIG_CRYPTO_CBC is not set
-# CONFIG_CRYPTO_CTR is not set
-# CONFIG_CRYPTO_CTS is not set
-# CONFIG_CRYPTO_ECB is not set
-# CONFIG_CRYPTO_LRW is not set
-# CONFIG_CRYPTO_PCBC is not set
-# CONFIG_CRYPTO_XTS is not set
-
-#
-# Hash modes
-#
-# CONFIG_CRYPTO_HMAC is not set
-# CONFIG_CRYPTO_XCBC is not set
-# CONFIG_CRYPTO_VMAC is not set
-
-#
-# Digest
-#
-# CONFIG_CRYPTO_CRC32C is not set
-# CONFIG_CRYPTO_GHASH is not set
-# CONFIG_CRYPTO_MD4 is not set
-# CONFIG_CRYPTO_MD5 is not set
-# CONFIG_CRYPTO_MICHAEL_MIC is not set
-# CONFIG_CRYPTO_RMD128 is not set
-# CONFIG_CRYPTO_RMD160 is not set
-# CONFIG_CRYPTO_RMD256 is not set
-# CONFIG_CRYPTO_RMD320 is not set
-# CONFIG_CRYPTO_SHA1 is not set
-# CONFIG_CRYPTO_SHA256 is not set
-# CONFIG_CRYPTO_SHA512 is not set
-# CONFIG_CRYPTO_TGR192 is not set
-# CONFIG_CRYPTO_WP512 is not set
-
-#
-# Ciphers
-#
-CONFIG_CRYPTO_AES=m
-# CONFIG_CRYPTO_ANUBIS is not set
-# CONFIG_CRYPTO_ARC4 is not set
-# CONFIG_CRYPTO_BLOWFISH is not set
-# CONFIG_CRYPTO_CAMELLIA is not set
-# CONFIG_CRYPTO_CAST5 is not set
-# CONFIG_CRYPTO_CAST6 is not set
-# CONFIG_CRYPTO_DES is not set
-# CONFIG_CRYPTO_FCRYPT is not set
-# CONFIG_CRYPTO_KHAZAD is not set
-# CONFIG_CRYPTO_SALSA20 is not set
-# CONFIG_CRYPTO_SEED is not set
-# CONFIG_CRYPTO_SERPENT is not set
-# CONFIG_CRYPTO_TEA is not set
-# CONFIG_CRYPTO_TWOFISH is not set
-
-#
-# Compression
-#
-# CONFIG_CRYPTO_DEFLATE is not set
-# CONFIG_CRYPTO_ZLIB is not set
-# CONFIG_CRYPTO_LZO is not set
-
-#
-# Random Number Generation
-#
-CONFIG_CRYPTO_ANSI_CPRNG=m
-# CONFIG_CRYPTO_USER_API_HASH is not set
-# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
-CONFIG_CRYPTO_HW=y
-# CONFIG_CRYPTO_DEV_HIFN_795X is not set
-# CONFIG_BINARY_PRINTF is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-CONFIG_GENERIC_FIND_FIRST_BIT=y
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_FIND_LAST_BIT=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_T10DIF is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_ZLIB_INFLATE=y
-# CONFIG_XZ_DEC is not set
-# CONFIG_XZ_DEC_BCJ is not set
-CONFIG_DECOMPRESS_GZIP=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
-CONFIG_CPU_RMAP=y
-CONFIG_NLATTR=y
-# CONFIG_AVERAGE is not set
-CONFIG_HAVE_KVM=y
-# CONFIG_VIRTUALIZATION is not set
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+CONFIG_SECURITY=y
+CONFIG_SECURITYFS=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_NETWORK_XFRM=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM=y
+CONFIG_SECURITY_SELINUX_DISABLE=y
+CONFIG_CRYPTO_NULL=m
+CONFIG_CRYPTO_PCRYPT=m
+CONFIG_CRYPTO_CRYPTD=m
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_CCM=m
+CONFIG_CRYPTO_GCM=m
+CONFIG_CRYPTO_CTS=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_XCBC=m
+CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_RMD128=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_RMD256=m
+CONFIG_CRYPTO_RMD320=m
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SHA256=m
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAMELLIA=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_FCRYPT=m
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_SEED=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_ZLIB=m
+CONFIG_CRYPTO_LZO=m
+CONFIG_CRC_CCITT=m
+CONFIG_CRC7=m
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index a7869ad..77763cc 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -303,10 +303,7 @@
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
+ set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
goto badframe;
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index bedaf4e..f79d4b8 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -97,10 +97,7 @@
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
+ set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
goto badframe;
@@ -286,13 +283,7 @@
* the work_pending path in the return-to-user code, and
* either way we can re-enable interrupts unconditionally.
*/
- spin_lock_irq(¤t->sighand->siglock);
- sigorsets(¤t->blocked,
- ¤t->blocked, &ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(¤t->blocked, sig);
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
+ block_sigmask(ka, sig);
}
return ret;
diff --git a/arch/tile/kernel/sysfs.c b/arch/tile/kernel/sysfs.c
index f862b00..71ae728 100644
--- a/arch/tile/kernel/sysfs.c
+++ b/arch/tile/kernel/sysfs.c
@@ -163,7 +163,7 @@
#define create_hv_attr(name) \
if (!err) \
- err = sysfs_create_file(hypervisor_kobj, &dev_attr_##name);
+ err = sysfs_create_file(hypervisor_kobj, &dev_attr_##name.attr);
create_hv_attr(type);
create_hv_attr(version);
create_hv_attr(config_version);
diff --git a/arch/tile/lib/spinlock_32.c b/arch/tile/lib/spinlock_32.c
index cb0999f..b16ac49 100644
--- a/arch/tile/lib/spinlock_32.c
+++ b/arch/tile/lib/spinlock_32.c
@@ -144,7 +144,7 @@
for (;;) {
__insn_mtspr(SPR_INTERRUPT_CRITICAL_SECTION, 1);
val = __insn_tns((int *)&rwlock->lock);
- if (likely(val & 1) == 0) {
+ if (likely((val & 1) == 0)) {
rwlock->lock = val - (1 << _RD_COUNT_SHIFT);
__insn_mtspr(SPR_INTERRUPT_CRITICAL_SECTION, 0);
break;
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5bed94e1..09675d3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -82,6 +82,7 @@
select CLKEVT_I8253
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_IOMAP
+ select DCACHE_WORD_ACCESS if !DEBUG_PAGEALLOC
config INSTRUCTION_DECODER
def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 40fc861..58b7f27 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -100,13 +100,8 @@
irqctx->tinfo.task = curctx->tinfo.task;
irqctx->tinfo.previous_esp = current_stack_pointer;
- /*
- * Copy the softirq bits in preempt_count so that the
- * softirq checks work in the hardirq context.
- */
- irqctx->tinfo.preempt_count =
- (irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK) |
- (curctx->tinfo.preempt_count & SOFTIRQ_MASK);
+ /* Copy the preempt_count so that the [soft]irq checks work. */
+ irqctx->tinfo.preempt_count = curctx->tinfo.preempt_count;
if (unlikely(overflow))
call_on_stack(print_stack_overflow, isp);
@@ -196,7 +191,7 @@
if (unlikely(!desc))
return false;
- if (!execute_on_irq_stack(overflow, desc, irq)) {
+ if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
if (unlikely(overflow))
print_stack_overflow();
desc->handle_irq(irq, desc);
diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index 8b782a6..fb95dd2 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -36,11 +36,23 @@
kmem_cache_free(icq->__rcu_icq_cache, icq);
}
-/*
- * Exit and free an icq. Called with both ioc and q locked.
- */
+/* Exit an icq. Called with both ioc and q locked. */
static void ioc_exit_icq(struct io_cq *icq)
{
+ struct elevator_type *et = icq->q->elevator->type;
+
+ if (icq->flags & ICQ_EXITED)
+ return;
+
+ if (et->ops.elevator_exit_icq_fn)
+ et->ops.elevator_exit_icq_fn(icq);
+
+ icq->flags |= ICQ_EXITED;
+}
+
+/* Release an icq. Called with both ioc and q locked. */
+static void ioc_destroy_icq(struct io_cq *icq)
+{
struct io_context *ioc = icq->ioc;
struct request_queue *q = icq->q;
struct elevator_type *et = q->elevator->type;
@@ -60,8 +72,7 @@
if (rcu_dereference_raw(ioc->icq_hint) == icq)
rcu_assign_pointer(ioc->icq_hint, NULL);
- if (et->ops.elevator_exit_icq_fn)
- et->ops.elevator_exit_icq_fn(icq);
+ ioc_exit_icq(icq);
/*
* @icq->q might have gone away by the time RCU callback runs
@@ -79,7 +90,6 @@
{
struct io_context *ioc = container_of(work, struct io_context,
release_work);
- struct request_queue *last_q = NULL;
unsigned long flags;
/*
@@ -93,44 +103,19 @@
while (!hlist_empty(&ioc->icq_list)) {
struct io_cq *icq = hlist_entry(ioc->icq_list.first,
struct io_cq, ioc_node);
- struct request_queue *this_q = icq->q;
+ struct request_queue *q = icq->q;
- if (this_q != last_q) {
- /*
- * Need to switch to @this_q. Once we release
- * @ioc->lock, it can go away along with @cic.
- * Hold on to it.
- */
- __blk_get_queue(this_q);
-
- /*
- * blk_put_queue() might sleep thanks to kobject
- * idiocy. Always release both locks, put and
- * restart.
- */
- if (last_q) {
- spin_unlock(last_q->queue_lock);
- spin_unlock_irqrestore(&ioc->lock, flags);
- blk_put_queue(last_q);
- } else {
- spin_unlock_irqrestore(&ioc->lock, flags);
- }
-
- last_q = this_q;
- spin_lock_irqsave(this_q->queue_lock, flags);
- spin_lock_nested(&ioc->lock, 1);
- continue;
+ if (spin_trylock(q->queue_lock)) {
+ ioc_destroy_icq(icq);
+ spin_unlock(q->queue_lock);
+ } else {
+ spin_unlock_irqrestore(&ioc->lock, flags);
+ cpu_relax();
+ spin_lock_irqsave_nested(&ioc->lock, flags, 1);
}
- ioc_exit_icq(icq);
}
- if (last_q) {
- spin_unlock(last_q->queue_lock);
- spin_unlock_irqrestore(&ioc->lock, flags);
- blk_put_queue(last_q);
- } else {
- spin_unlock_irqrestore(&ioc->lock, flags);
- }
+ spin_unlock_irqrestore(&ioc->lock, flags);
kmem_cache_free(iocontext_cachep, ioc);
}
@@ -145,6 +130,7 @@
void put_io_context(struct io_context *ioc)
{
unsigned long flags;
+ bool free_ioc = false;
if (ioc == NULL)
return;
@@ -159,8 +145,13 @@
spin_lock_irqsave(&ioc->lock, flags);
if (!hlist_empty(&ioc->icq_list))
schedule_work(&ioc->release_work);
+ else
+ free_ioc = true;
spin_unlock_irqrestore(&ioc->lock, flags);
}
+
+ if (free_ioc)
+ kmem_cache_free(iocontext_cachep, ioc);
}
EXPORT_SYMBOL(put_io_context);
@@ -168,13 +159,41 @@
void exit_io_context(struct task_struct *task)
{
struct io_context *ioc;
+ struct io_cq *icq;
+ struct hlist_node *n;
+ unsigned long flags;
task_lock(task);
ioc = task->io_context;
task->io_context = NULL;
task_unlock(task);
- atomic_dec(&ioc->nr_tasks);
+ if (!atomic_dec_and_test(&ioc->nr_tasks)) {
+ put_io_context(ioc);
+ return;
+ }
+
+ /*
+ * Need ioc lock to walk icq_list and q lock to exit icq. Perform
+ * reverse double locking. Read comment in ioc_release_fn() for
+ * explanation on the nested locking annotation.
+ */
+retry:
+ spin_lock_irqsave_nested(&ioc->lock, flags, 1);
+ hlist_for_each_entry(icq, n, &ioc->icq_list, ioc_node) {
+ if (icq->flags & ICQ_EXITED)
+ continue;
+ if (spin_trylock(icq->q->queue_lock)) {
+ ioc_exit_icq(icq);
+ spin_unlock(icq->q->queue_lock);
+ } else {
+ spin_unlock_irqrestore(&ioc->lock, flags);
+ cpu_relax();
+ goto retry;
+ }
+ }
+ spin_unlock_irqrestore(&ioc->lock, flags);
+
put_io_context(ioc);
}
@@ -194,7 +213,7 @@
struct io_context *ioc = icq->ioc;
spin_lock(&ioc->lock);
- ioc_exit_icq(icq);
+ ioc_destroy_icq(icq);
spin_unlock(&ioc->lock);
}
}
@@ -363,13 +382,13 @@
return icq;
}
-void ioc_set_changed(struct io_context *ioc, int which)
+void ioc_set_icq_flags(struct io_context *ioc, unsigned int flags)
{
struct io_cq *icq;
struct hlist_node *n;
hlist_for_each_entry(icq, n, &ioc->icq_list, ioc_node)
- set_bit(which, &icq->changed);
+ icq->flags |= flags;
}
/**
@@ -387,7 +406,7 @@
spin_lock_irqsave(&ioc->lock, flags);
ioc->ioprio = ioprio;
- ioc_set_changed(ioc, ICQ_IOPRIO_CHANGED);
+ ioc_set_icq_flags(ioc, ICQ_IOPRIO_CHANGED);
spin_unlock_irqrestore(&ioc->lock, flags);
}
@@ -404,11 +423,33 @@
unsigned long flags;
spin_lock_irqsave(&ioc->lock, flags);
- ioc_set_changed(ioc, ICQ_CGROUP_CHANGED);
+ ioc_set_icq_flags(ioc, ICQ_CGROUP_CHANGED);
spin_unlock_irqrestore(&ioc->lock, flags);
}
EXPORT_SYMBOL(ioc_cgroup_changed);
+/**
+ * icq_get_changed - fetch and clear icq changed mask
+ * @icq: icq of interest
+ *
+ * Fetch and clear ICQ_*_CHANGED bits from @icq. Grabs and releases
+ * @icq->ioc->lock.
+ */
+unsigned icq_get_changed(struct io_cq *icq)
+{
+ unsigned int changed = 0;
+ unsigned long flags;
+
+ if (unlikely(icq->flags & ICQ_CHANGED_MASK)) {
+ spin_lock_irqsave(&icq->ioc->lock, flags);
+ changed = icq->flags & ICQ_CHANGED_MASK;
+ icq->flags &= ~ICQ_CHANGED_MASK;
+ spin_unlock_irqrestore(&icq->ioc->lock, flags);
+ }
+ return changed;
+}
+EXPORT_SYMBOL(icq_get_changed);
+
static int __init blk_ioc_init(void)
{
iocontext_cachep = kmem_cache_create("blkdev_ioc",
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index d0ba505..4572952 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -3470,20 +3470,20 @@
const int rw = rq_data_dir(rq);
const bool is_sync = rq_is_sync(rq);
struct cfq_queue *cfqq;
+ unsigned int changed;
might_sleep_if(gfp_mask & __GFP_WAIT);
spin_lock_irq(q->queue_lock);
/* handle changed notifications */
- if (unlikely(cic->icq.changed)) {
- if (test_and_clear_bit(ICQ_IOPRIO_CHANGED, &cic->icq.changed))
- changed_ioprio(cic);
+ changed = icq_get_changed(&cic->icq);
+ if (unlikely(changed & ICQ_IOPRIO_CHANGED))
+ changed_ioprio(cic);
#ifdef CONFIG_CFQ_GROUP_IOSCHED
- if (test_and_clear_bit(ICQ_CGROUP_CHANGED, &cic->icq.changed))
- changed_cgroup(cic);
+ if (unlikely(changed & ICQ_CGROUP_CHANGED))
+ changed_cgroup(cic);
#endif
- }
new_queue:
cfqq = cic_to_cfqq(cic, is_sync);
diff --git a/block/genhd.c b/block/genhd.c
index 23b4f70..df9816e 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -35,6 +35,7 @@
static struct device_type disk_type;
+static void disk_alloc_events(struct gendisk *disk);
static void disk_add_events(struct gendisk *disk);
static void disk_del_events(struct gendisk *disk);
static void disk_release_events(struct gendisk *disk);
@@ -601,6 +602,8 @@
disk->major = MAJOR(devt);
disk->first_minor = MINOR(devt);
+ disk_alloc_events(disk);
+
/* Register BDI before referencing it from bdev */
bdi = &disk->queue->backing_dev_info;
bdi_register_dev(bdi, disk_devt(disk));
@@ -1475,9 +1478,9 @@
intv = disk_events_poll_jiffies(disk);
set_timer_slack(&ev->dwork.timer, intv / 4);
if (check_now)
- queue_delayed_work(system_nrt_wq, &ev->dwork, 0);
+ queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, 0);
else if (intv)
- queue_delayed_work(system_nrt_wq, &ev->dwork, intv);
+ queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, intv);
out_unlock:
spin_unlock_irqrestore(&ev->lock, flags);
}
@@ -1521,7 +1524,7 @@
ev->clearing |= mask;
if (!ev->block) {
cancel_delayed_work(&ev->dwork);
- queue_delayed_work(system_nrt_wq, &ev->dwork, 0);
+ queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, 0);
}
spin_unlock_irq(&ev->lock);
}
@@ -1558,7 +1561,7 @@
/* uncondtionally schedule event check and wait for it to finish */
disk_block_events(disk);
- queue_delayed_work(system_nrt_wq, &ev->dwork, 0);
+ queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, 0);
flush_delayed_work(&ev->dwork);
__disk_unblock_events(disk, false);
@@ -1595,7 +1598,7 @@
intv = disk_events_poll_jiffies(disk);
if (!ev->block && intv)
- queue_delayed_work(system_nrt_wq, &ev->dwork, intv);
+ queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, intv);
spin_unlock_irq(&ev->lock);
@@ -1733,9 +1736,9 @@
&disk_events_dfl_poll_msecs, 0644);
/*
- * disk_{add|del|release}_events - initialize and destroy disk_events.
+ * disk_{alloc|add|del|release}_events - initialize and destroy disk_events.
*/
-static void disk_add_events(struct gendisk *disk)
+static void disk_alloc_events(struct gendisk *disk)
{
struct disk_events *ev;
@@ -1748,16 +1751,6 @@
return;
}
- if (sysfs_create_files(&disk_to_dev(disk)->kobj,
- disk_events_attrs) < 0) {
- pr_warn("%s: failed to create sysfs files for events\n",
- disk->disk_name);
- kfree(ev);
- return;
- }
-
- disk->ev = ev;
-
INIT_LIST_HEAD(&ev->node);
ev->disk = disk;
spin_lock_init(&ev->lock);
@@ -1766,8 +1759,21 @@
ev->poll_msecs = -1;
INIT_DELAYED_WORK(&ev->dwork, disk_events_workfn);
+ disk->ev = ev;
+}
+
+static void disk_add_events(struct gendisk *disk)
+{
+ if (!disk->ev)
+ return;
+
+ /* FIXME: error handling */
+ if (sysfs_create_files(&disk_to_dev(disk)->kobj, disk_events_attrs) < 0)
+ pr_warn("%s: failed to create sysfs files for events\n",
+ disk->disk_name);
+
mutex_lock(&disk_events_mutex);
- list_add_tail(&ev->node, &disk_events);
+ list_add_tail(&disk->ev->node, &disk_events);
mutex_unlock(&disk_events_mutex);
/*
diff --git a/block/partition-generic.c b/block/partition-generic.c
index d06ec1c..6df5d69 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -389,17 +389,11 @@
}
}
-int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
+static int drop_partitions(struct gendisk *disk, struct block_device *bdev)
{
- struct parsed_partitions *state = NULL;
struct disk_part_iter piter;
struct hd_struct *part;
- int p, highest, res;
-rescan:
- if (state && !IS_ERR(state)) {
- kfree(state);
- state = NULL;
- }
+ int res;
if (bdev->bd_part_count)
return -EBUSY;
@@ -412,6 +406,24 @@
delete_partition(disk, part->partno);
disk_part_iter_exit(&piter);
+ return 0;
+}
+
+int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
+{
+ struct parsed_partitions *state = NULL;
+ struct hd_struct *part;
+ int p, highest, res;
+rescan:
+ if (state && !IS_ERR(state)) {
+ kfree(state);
+ state = NULL;
+ }
+
+ res = drop_partitions(disk, bdev);
+ if (res)
+ return res;
+
if (disk->fops->revalidate_disk)
disk->fops->revalidate_disk(disk);
check_disk_size_change(disk, bdev);
@@ -515,6 +527,26 @@
return 0;
}
+int invalidate_partitions(struct gendisk *disk, struct block_device *bdev)
+{
+ int res;
+
+ if (!bdev->bd_invalidated)
+ return 0;
+
+ res = drop_partitions(disk, bdev);
+ if (res)
+ return res;
+
+ set_capacity(disk, 0);
+ check_disk_size_change(disk, bdev);
+ bdev->bd_invalidated = 0;
+ /* tell userspace that the media / partition table may have changed */
+ kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);
+
+ return 0;
+}
+
unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p)
{
struct address_space *mapping = bdev->bd_inode->i_mapping;
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index e086fbb..8db9089 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -1177,7 +1177,8 @@
int TimeoutCounter;
int i;
-
+ memset(&CommandMailbox, 0, sizeof(DAC960_V1_CommandMailbox_T));
+
if (pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32)))
return DAC960_Failure(Controller, "DMA mask out of range");
Controller->BounceBufferLimit = DMA_BIT_MASK(32);
@@ -4627,7 +4628,8 @@
DAC960_Controller_T *Controller = Command->Controller;
DAC960_CommandType_T CommandType = Command->CommandType;
DAC960_V2_CommandMailbox_T *CommandMailbox = &Command->V2.CommandMailbox;
- DAC960_V2_IOCTL_Opcode_T CommandOpcode = CommandMailbox->Common.IOCTL_Opcode;
+ DAC960_V2_IOCTL_Opcode_T IOCTLOpcode = CommandMailbox->Common.IOCTL_Opcode;
+ DAC960_V2_CommandOpcode_T CommandOpcode = CommandMailbox->SCSI_10.CommandOpcode;
DAC960_V2_CommandStatus_T CommandStatus = Command->V2.CommandStatus;
if (CommandType == DAC960_ReadCommand ||
@@ -4699,7 +4701,7 @@
{
if (Controller->ShutdownMonitoringTimer)
return;
- if (CommandOpcode == DAC960_V2_GetControllerInfo)
+ if (IOCTLOpcode == DAC960_V2_GetControllerInfo)
{
DAC960_V2_ControllerInfo_T *NewControllerInfo =
Controller->V2.NewControllerInformation;
@@ -4719,14 +4721,14 @@
memcpy(ControllerInfo, NewControllerInfo,
sizeof(DAC960_V2_ControllerInfo_T));
}
- else if (CommandOpcode == DAC960_V2_GetEvent)
+ else if (IOCTLOpcode == DAC960_V2_GetEvent)
{
if (CommandStatus == DAC960_V2_NormalCompletion) {
DAC960_V2_ReportEvent(Controller, Controller->V2.Event);
}
Controller->V2.NextEventSequenceNumber++;
}
- else if (CommandOpcode == DAC960_V2_GetPhysicalDeviceInfoValid &&
+ else if (IOCTLOpcode == DAC960_V2_GetPhysicalDeviceInfoValid &&
CommandStatus == DAC960_V2_NormalCompletion)
{
DAC960_V2_PhysicalDeviceInfo_T *NewPhysicalDeviceInfo =
@@ -4915,7 +4917,7 @@
NewPhysicalDeviceInfo->LogicalUnit++;
Controller->V2.PhysicalDeviceIndex++;
}
- else if (CommandOpcode == DAC960_V2_GetPhysicalDeviceInfoValid)
+ else if (IOCTLOpcode == DAC960_V2_GetPhysicalDeviceInfoValid)
{
unsigned int DeviceIndex;
for (DeviceIndex = Controller->V2.PhysicalDeviceIndex;
@@ -4938,7 +4940,7 @@
}
Controller->V2.NeedPhysicalDeviceInformation = false;
}
- else if (CommandOpcode == DAC960_V2_GetLogicalDeviceInfoValid &&
+ else if (IOCTLOpcode == DAC960_V2_GetLogicalDeviceInfoValid &&
CommandStatus == DAC960_V2_NormalCompletion)
{
DAC960_V2_LogicalDeviceInfo_T *NewLogicalDeviceInfo =
@@ -5065,7 +5067,7 @@
[LogicalDeviceNumber] = true;
NewLogicalDeviceInfo->LogicalDeviceNumber++;
}
- else if (CommandOpcode == DAC960_V2_GetLogicalDeviceInfoValid)
+ else if (IOCTLOpcode == DAC960_V2_GetLogicalDeviceInfoValid)
{
int LogicalDriveNumber;
for (LogicalDriveNumber = 0;
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index e7472f5..3fb6ab4 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -1120,7 +1120,7 @@
break;
case MISC_GET_FW_VER: {
struct carm_fw_ver *ver = (struct carm_fw_ver *)
- mem + sizeof(struct carm_msg_get_fw_ver);
+ (mem + sizeof(struct carm_msg_get_fw_ver));
if (!error) {
host->fw_ver = le32_to_cpu(ver->version);
host->flags |= (ver->features & FL_FW_VER_MASK);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c
index 618bd4d..99d5527 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_connector.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c
@@ -54,14 +54,14 @@
mode->vrefresh = timing->refresh;
mode->hdisplay = timing->xres;
- mode->hsync_start = mode->hdisplay + timing->left_margin;
+ mode->hsync_start = mode->hdisplay + timing->right_margin;
mode->hsync_end = mode->hsync_start + timing->hsync_len;
- mode->htotal = mode->hsync_end + timing->right_margin;
+ mode->htotal = mode->hsync_end + timing->left_margin;
mode->vdisplay = timing->yres;
- mode->vsync_start = mode->vdisplay + timing->upper_margin;
+ mode->vsync_start = mode->vdisplay + timing->lower_margin;
mode->vsync_end = mode->vsync_start + timing->vsync_len;
- mode->vtotal = mode->vsync_end + timing->lower_margin;
+ mode->vtotal = mode->vsync_end + timing->upper_margin;
mode->width_mm = panel->width_mm;
mode->height_mm = panel->height_mm;
@@ -85,14 +85,14 @@
timing->refresh = drm_mode_vrefresh(mode);
timing->xres = mode->hdisplay;
- timing->left_margin = mode->hsync_start - mode->hdisplay;
+ timing->right_margin = mode->hsync_start - mode->hdisplay;
timing->hsync_len = mode->hsync_end - mode->hsync_start;
- timing->right_margin = mode->htotal - mode->hsync_end;
+ timing->left_margin = mode->htotal - mode->hsync_end;
timing->yres = mode->vdisplay;
- timing->upper_margin = mode->vsync_start - mode->vdisplay;
+ timing->lower_margin = mode->vsync_start - mode->vdisplay;
timing->vsync_len = mode->vsync_end - mode->vsync_start;
- timing->lower_margin = mode->vtotal - mode->vsync_end;
+ timing->upper_margin = mode->vtotal - mode->vsync_end;
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
timing->vmode = FB_VMODE_INTERLACED;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 58820eb..09cc13f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -246,7 +246,7 @@
.remove = __devexit_p(exynos_drm_platform_remove),
.driver = {
.owner = THIS_MODULE,
- .name = DRIVER_NAME,
+ .name = "exynos-drm",
},
};
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index 3508700..54f8f07 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -46,39 +46,13 @@
struct exynos_drm_gem_obj *exynos_gem_obj;
};
-static int exynos_drm_fbdev_set_par(struct fb_info *info)
-{
- struct fb_var_screeninfo *var = &info->var;
-
- switch (var->bits_per_pixel) {
- case 32:
- case 24:
- case 18:
- case 16:
- case 12:
- info->fix.visual = FB_VISUAL_TRUECOLOR;
- break;
- case 1:
- info->fix.visual = FB_VISUAL_MONO01;
- break;
- default:
- info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
- break;
- }
-
- info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8;
-
- return drm_fb_helper_set_par(info);
-}
-
-
static struct fb_ops exynos_drm_fb_ops = {
.owner = THIS_MODULE,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
.fb_check_var = drm_fb_helper_check_var,
- .fb_set_par = exynos_drm_fbdev_set_par,
+ .fb_set_par = drm_fb_helper_set_par,
.fb_blank = drm_fb_helper_blank,
.fb_pan_display = drm_fb_helper_pan_display,
.fb_setcmap = drm_fb_helper_setcmap,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 360adf2..56458ee 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -817,8 +817,6 @@
goto err_clk_get;
}
- clk_enable(ctx->bus_clk);
-
ctx->lcd_clk = clk_get(dev, "sclk_fimd");
if (IS_ERR(ctx->lcd_clk)) {
dev_err(dev, "failed to get lcd clock\n");
@@ -826,8 +824,6 @@
goto err_bus_clk;
}
- clk_enable(ctx->lcd_clk);
-
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "failed to find registers\n");
@@ -864,17 +860,11 @@
goto err_req_irq;
}
- ctx->clkdiv = fimd_calc_clkdiv(ctx, &panel->timing);
ctx->vidcon0 = pdata->vidcon0;
ctx->vidcon1 = pdata->vidcon1;
ctx->default_win = pdata->default_win;
ctx->panel = panel;
- panel->timing.pixclock = clk_get_rate(ctx->lcd_clk) / ctx->clkdiv;
-
- DRM_DEBUG_KMS("pixel clock = %d, clkdiv = %d\n",
- panel->timing.pixclock, ctx->clkdiv);
-
subdrv = &ctx->subdrv;
subdrv->probe = fimd_subdrv_probe;
@@ -889,10 +879,15 @@
platform_set_drvdata(pdev, ctx);
- pm_runtime_set_active(dev);
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
+ ctx->clkdiv = fimd_calc_clkdiv(ctx, &panel->timing);
+ panel->timing.pixclock = clk_get_rate(ctx->lcd_clk) / ctx->clkdiv;
+
+ DRM_DEBUG_KMS("pixel clock = %d, clkdiv = %d\n",
+ panel->timing.pixclock, ctx->clkdiv);
+
for (win = 0; win < WINDOWS_NR; win++)
fimd_clear_win(ctx, win);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 03c53fc..558ac71 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2689,7 +2689,7 @@
#define DVS_FORMAT_RGBX888 (2<<25)
#define DVS_FORMAT_RGBX161616 (3<<25)
#define DVS_SOURCE_KEY (1<<22)
-#define DVS_RGB_ORDER_RGBX (1<<20)
+#define DVS_RGB_ORDER_XBGR (1<<20)
#define DVS_YUV_BYTE_ORDER_MASK (3<<16)
#define DVS_YUV_ORDER_YUYV (0<<16)
#define DVS_YUV_ORDER_UYVY (1<<16)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f851db7..397087c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7828,6 +7828,7 @@
case DRM_FORMAT_RGB332:
case DRM_FORMAT_RGB565:
case DRM_FORMAT_XRGB8888:
+ case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_ARGB2101010:
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 2288abf..a083504 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -225,16 +225,16 @@
/* Mask out pixel format bits in case we change it */
dvscntr &= ~DVS_PIXFORMAT_MASK;
- dvscntr &= ~DVS_RGB_ORDER_RGBX;
+ dvscntr &= ~DVS_RGB_ORDER_XBGR;
dvscntr &= ~DVS_YUV_BYTE_ORDER_MASK;
switch (fb->pixel_format) {
case DRM_FORMAT_XBGR8888:
- dvscntr |= DVS_FORMAT_RGBX888;
+ dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
pixel_size = 4;
break;
case DRM_FORMAT_XRGB8888:
- dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_RGBX;
+ dvscntr |= DVS_FORMAT_RGBX888;
pixel_size = 4;
break;
case DRM_FORMAT_YUYV:
diff --git a/drivers/hwmon/pmbus/zl6100.c b/drivers/hwmon/pmbus/zl6100.c
index 880b90c..e3e8420 100644
--- a/drivers/hwmon/pmbus/zl6100.c
+++ b/drivers/hwmon/pmbus/zl6100.c
@@ -200,17 +200,11 @@
data->id = mid->driver_data;
/*
- * ZL2005, ZL2008, ZL2105, and ZL6100 are known to require a wait time
- * between I2C accesses. ZL2004 and ZL6105 are known to be safe.
- * Other chips have not yet been tested.
- *
- * Only clear the wait time for chips known to be safe. The wait time
- * can be cleared later for additional chips if tests show that it
- * is not needed (in other words, better be safe than sorry).
+ * According to information from the chip vendor, all currently
+ * supported chips are known to require a wait time between I2C
+ * accesses.
*/
data->delay = delay;
- if (data->id == zl2004 || data->id == zl6105)
- data->delay = 0;
/*
* Since there was a direct I2C device access above, wait before
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 5276d19..a658d62 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -39,7 +39,7 @@
0x8860 0xa1
w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
- w83627uhg 8 2 2 2 0xa230 0xc1 0x5ca3
+ w83627uhg 8 2 2 3 0xa230 0xc1 0x5ca3
w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
w83667hg-b 9 5 3 4 0xb350 0xc1 0x5ca3
nct6775f 9 4 3 9 0xb470 0xc1 0x5ca3
@@ -1607,7 +1607,7 @@
val = step_time_to_reg(val, data->pwm_mode[nr]); \
mutex_lock(&data->update_lock); \
data->reg[nr] = val; \
- w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
+ w83627ehf_write_value(data, data->REG_##REG[nr], val); \
mutex_unlock(&data->update_lock); \
return count; \
} \
@@ -2004,7 +2004,8 @@
goto exit;
}
- data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL);
+ data = devm_kzalloc(&pdev->dev, sizeof(struct w83627ehf_data),
+ GFP_KERNEL);
if (!data) {
err = -ENOMEM;
goto exit_release;
@@ -2157,16 +2158,16 @@
w83627ehf_set_temp_reg_ehf(data, 3);
/*
- * Temperature sources for temp1 and temp2 are selected with
+ * Temperature sources for temp2 and temp3 are selected with
* bank 0, registers 0x49 and 0x4a.
*/
data->temp_src[0] = 0; /* SYSTIN */
reg = w83627ehf_read_value(data, 0x49) & 0x07;
/* Adjust to have the same mapping as other source registers */
if (reg == 0)
- data->temp_src[1]++;
+ data->temp_src[1] = 1;
else if (reg >= 2 && reg <= 5)
- data->temp_src[1] += 2;
+ data->temp_src[1] = reg + 2;
else /* should never happen */
data->have_temp &= ~(1 << 1);
reg = w83627ehf_read_value(data, 0x4a);
@@ -2493,9 +2494,8 @@
exit_remove:
w83627ehf_device_remove_files(dev);
- kfree(data);
- platform_set_drvdata(pdev, NULL);
exit_release:
+ platform_set_drvdata(pdev, NULL);
release_region(res->start, IOREGION_LENGTH);
exit:
return err;
@@ -2509,7 +2509,6 @@
w83627ehf_device_remove_files(&pdev->dev);
release_region(data->addr, IOREGION_LENGTH);
platform_set_drvdata(pdev, NULL);
- kfree(data);
return 0;
}
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 525c734..24f94f4 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -103,8 +103,14 @@
* chips may hold it low ("clock stretching") while they
* are processing data internally.
*/
- if (time_after(jiffies, start + adap->timeout))
+ if (time_after(jiffies, start + adap->timeout)) {
+ /* Test one last time, as we may have been preempted
+ * between last check and timeout test.
+ */
+ if (getscl(adap))
+ break;
return -ETIMEDOUT;
+ }
cond_resched();
}
#ifdef DEBUG
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 1e56061..e9c1893 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1386,8 +1386,10 @@
ret = i2c_transfer(adap, &msg, 1);
- /* If everything went ok (i.e. 1 msg transmitted), return #bytes
- transmitted, else error code. */
+ /*
+ * If everything went ok (i.e. 1 msg transmitted), return #bytes
+ * transmitted, else error code.
+ */
return (ret == 1) ? count : ret;
}
EXPORT_SYMBOL(i2c_master_send);
@@ -1414,8 +1416,10 @@
ret = i2c_transfer(adap, &msg, 1);
- /* If everything went ok (i.e. 1 msg transmitted), return #bytes
- transmitted, else error code. */
+ /*
+ * If everything went ok (i.e. 1 msg received), return #bytes received,
+ * else error code.
+ */
return (ret == 1) ? count : ret;
}
EXPORT_SYMBOL(i2c_master_recv);
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index c9c6053..a08a534 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -48,8 +48,6 @@
#define ROOT_SIZE VTD_PAGE_SIZE
#define CONTEXT_SIZE VTD_PAGE_SIZE
-#define IS_BRIDGE_HOST_DEVICE(pdev) \
- ((pdev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
#define IS_GFX_DEVICE(pdev) ((pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY)
#define IS_ISA_DEVICE(pdev) ((pdev->class >> 8) == PCI_CLASS_BRIDGE_ISA)
#define IS_AZALIA(pdev) ((pdev)->vendor == 0x8086 && (pdev)->device == 0x3a3e)
@@ -356,10 +354,18 @@
/* si_domain contains mulitple devices */
#define DOMAIN_FLAG_STATIC_IDENTITY (1 << 2)
+/* define the limit of IOMMUs supported in each domain */
+#ifdef CONFIG_X86
+# define IOMMU_UNITS_SUPPORTED MAX_IO_APICS
+#else
+# define IOMMU_UNITS_SUPPORTED 64
+#endif
+
struct dmar_domain {
int id; /* domain id */
int nid; /* node id */
- unsigned long iommu_bmp; /* bitmap of iommus this domain uses*/
+ DECLARE_BITMAP(iommu_bmp, IOMMU_UNITS_SUPPORTED);
+ /* bitmap of iommus this domain uses*/
struct list_head devices; /* all devices' list */
struct iova_domain iovad; /* iova's that belong to this domain */
@@ -571,7 +577,7 @@
BUG_ON(domain->flags & DOMAIN_FLAG_VIRTUAL_MACHINE);
BUG_ON(domain->flags & DOMAIN_FLAG_STATIC_IDENTITY);
- iommu_id = find_first_bit(&domain->iommu_bmp, g_num_of_iommus);
+ iommu_id = find_first_bit(domain->iommu_bmp, g_num_of_iommus);
if (iommu_id < 0 || iommu_id >= g_num_of_iommus)
return NULL;
@@ -584,7 +590,7 @@
domain->iommu_coherency = 1;
- for_each_set_bit(i, &domain->iommu_bmp, g_num_of_iommus) {
+ for_each_set_bit(i, domain->iommu_bmp, g_num_of_iommus) {
if (!ecap_coherent(g_iommus[i]->ecap)) {
domain->iommu_coherency = 0;
break;
@@ -598,7 +604,7 @@
domain->iommu_snooping = 1;
- for_each_set_bit(i, &domain->iommu_bmp, g_num_of_iommus) {
+ for_each_set_bit(i, domain->iommu_bmp, g_num_of_iommus) {
if (!ecap_sc_support(g_iommus[i]->ecap)) {
domain->iommu_snooping = 0;
break;
@@ -1334,7 +1340,7 @@
return NULL;
domain->nid = -1;
- memset(&domain->iommu_bmp, 0, sizeof(unsigned long));
+ memset(domain->iommu_bmp, 0, sizeof(domain->iommu_bmp));
domain->flags = 0;
return domain;
@@ -1360,7 +1366,7 @@
domain->id = num;
set_bit(num, iommu->domain_ids);
- set_bit(iommu->seq_id, &domain->iommu_bmp);
+ set_bit(iommu->seq_id, domain->iommu_bmp);
iommu->domains[num] = domain;
spin_unlock_irqrestore(&iommu->lock, flags);
@@ -1385,7 +1391,7 @@
if (found) {
clear_bit(num, iommu->domain_ids);
- clear_bit(iommu->seq_id, &domain->iommu_bmp);
+ clear_bit(iommu->seq_id, domain->iommu_bmp);
iommu->domains[num] = NULL;
}
spin_unlock_irqrestore(&iommu->lock, flags);
@@ -1527,7 +1533,7 @@
dma_pte_free_pagetable(domain, 0, DOMAIN_MAX_PFN(domain->gaw));
for_each_active_iommu(iommu, drhd)
- if (test_bit(iommu->seq_id, &domain->iommu_bmp))
+ if (test_bit(iommu->seq_id, domain->iommu_bmp))
iommu_detach_domain(domain, iommu);
free_domain_mem(domain);
@@ -1653,7 +1659,7 @@
spin_unlock_irqrestore(&iommu->lock, flags);
spin_lock_irqsave(&domain->iommu_lock, flags);
- if (!test_and_set_bit(iommu->seq_id, &domain->iommu_bmp)) {
+ if (!test_and_set_bit(iommu->seq_id, domain->iommu_bmp)) {
domain->iommu_count++;
if (domain->iommu_count == 1)
domain->nid = iommu->node;
@@ -2369,18 +2375,18 @@
return -EFAULT;
for_each_pci_dev(pdev) {
- /* Skip Host/PCI Bridge devices */
- if (IS_BRIDGE_HOST_DEVICE(pdev))
- continue;
if (iommu_should_identity_map(pdev, 1)) {
- printk(KERN_INFO "IOMMU: %s identity mapping for device %s\n",
- hw ? "hardware" : "software", pci_name(pdev));
-
ret = domain_add_dev_info(si_domain, pdev,
- hw ? CONTEXT_TT_PASS_THROUGH :
- CONTEXT_TT_MULTI_LEVEL);
- if (ret)
+ hw ? CONTEXT_TT_PASS_THROUGH :
+ CONTEXT_TT_MULTI_LEVEL);
+ if (ret) {
+ /* device not associated with an iommu */
+ if (ret == -ENODEV)
+ continue;
return ret;
+ }
+ pr_info("IOMMU: %s identity mapping for device %s\n",
+ hw ? "hardware" : "software", pci_name(pdev));
}
}
@@ -2402,12 +2408,17 @@
* endfor
*/
for_each_drhd_unit(drhd) {
- g_num_of_iommus++;
/*
* lock not needed as this is only incremented in the single
* threaded kernel __init code path all other access are read
* only
*/
+ if (g_num_of_iommus < IOMMU_UNITS_SUPPORTED) {
+ g_num_of_iommus++;
+ continue;
+ }
+ printk_once(KERN_ERR "intel-iommu: exceeded %d IOMMUs\n",
+ IOMMU_UNITS_SUPPORTED);
}
g_iommus = kcalloc(g_num_of_iommus, sizeof(struct intel_iommu *),
@@ -3748,7 +3759,7 @@
if (found == 0) {
unsigned long tmp_flags;
spin_lock_irqsave(&domain->iommu_lock, tmp_flags);
- clear_bit(iommu->seq_id, &domain->iommu_bmp);
+ clear_bit(iommu->seq_id, domain->iommu_bmp);
domain->iommu_count--;
domain_update_iommu_cap(domain);
spin_unlock_irqrestore(&domain->iommu_lock, tmp_flags);
@@ -3790,7 +3801,7 @@
*/
spin_lock_irqsave(&domain->iommu_lock, flags2);
if (test_and_clear_bit(iommu->seq_id,
- &domain->iommu_bmp)) {
+ domain->iommu_bmp)) {
domain->iommu_count--;
domain_update_iommu_cap(domain);
}
@@ -3815,7 +3826,7 @@
domain->id = vm_domid++;
domain->nid = -1;
- memset(&domain->iommu_bmp, 0, sizeof(unsigned long));
+ memset(domain->iommu_bmp, 0, sizeof(domain->iommu_bmp));
domain->flags = DOMAIN_FLAG_VIRTUAL_MACHINE;
return domain;
diff --git a/drivers/media/dvb/siano/smsdvb.c b/drivers/media/dvb/siano/smsdvb.c
index 654685c..aa77e54 100644
--- a/drivers/media/dvb/siano/smsdvb.c
+++ b/drivers/media/dvb/siano/smsdvb.c
@@ -49,9 +49,6 @@
struct completion tune_done;
- /* todo: save freq/band instead whole struct */
- struct dtv_frontend_properties fe_params;
-
struct SMSHOSTLIB_STATISTICS_DVB_S sms_stat_dvb;
int event_fe_state;
int event_unc_state;
@@ -744,12 +741,124 @@
struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
+ struct smscore_device_t *coredev = client->coredev;
+ struct TRANSMISSION_STATISTICS_S *td =
+ &client->sms_stat_dvb.TransmissionData;
- sms_debug("");
+ switch (smscore_get_device_mode(coredev)) {
+ case DEVICE_MODE_DVBT:
+ case DEVICE_MODE_DVBT_BDA:
+ fep->frequency = td->Frequency;
- /* todo: */
- memcpy(fep, &client->fe_params,
- sizeof(struct dtv_frontend_properties));
+ switch (td->Bandwidth) {
+ case 6:
+ fep->bandwidth_hz = 6000000;
+ break;
+ case 7:
+ fep->bandwidth_hz = 7000000;
+ break;
+ case 8:
+ fep->bandwidth_hz = 8000000;
+ break;
+ }
+
+ switch (td->TransmissionMode) {
+ case 2:
+ fep->transmission_mode = TRANSMISSION_MODE_2K;
+ break;
+ case 8:
+ fep->transmission_mode = TRANSMISSION_MODE_8K;
+ }
+
+ switch (td->GuardInterval) {
+ case 0:
+ fep->guard_interval = GUARD_INTERVAL_1_32;
+ break;
+ case 1:
+ fep->guard_interval = GUARD_INTERVAL_1_16;
+ break;
+ case 2:
+ fep->guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case 3:
+ fep->guard_interval = GUARD_INTERVAL_1_4;
+ break;
+ }
+
+ switch (td->CodeRate) {
+ case 0:
+ fep->code_rate_HP = FEC_1_2;
+ break;
+ case 1:
+ fep->code_rate_HP = FEC_2_3;
+ break;
+ case 2:
+ fep->code_rate_HP = FEC_3_4;
+ break;
+ case 3:
+ fep->code_rate_HP = FEC_5_6;
+ break;
+ case 4:
+ fep->code_rate_HP = FEC_7_8;
+ break;
+ }
+
+ switch (td->LPCodeRate) {
+ case 0:
+ fep->code_rate_LP = FEC_1_2;
+ break;
+ case 1:
+ fep->code_rate_LP = FEC_2_3;
+ break;
+ case 2:
+ fep->code_rate_LP = FEC_3_4;
+ break;
+ case 3:
+ fep->code_rate_LP = FEC_5_6;
+ break;
+ case 4:
+ fep->code_rate_LP = FEC_7_8;
+ break;
+ }
+
+ switch (td->Constellation) {
+ case 0:
+ fep->modulation = QPSK;
+ break;
+ case 1:
+ fep->modulation = QAM_16;
+ break;
+ case 2:
+ fep->modulation = QAM_64;
+ break;
+ }
+
+ switch (td->Hierarchy) {
+ case 0:
+ fep->hierarchy = HIERARCHY_NONE;
+ break;
+ case 1:
+ fep->hierarchy = HIERARCHY_1;
+ break;
+ case 2:
+ fep->hierarchy = HIERARCHY_2;
+ break;
+ case 3:
+ fep->hierarchy = HIERARCHY_4;
+ break;
+ }
+
+ fep->inversion = INVERSION_AUTO;
+ break;
+ case DEVICE_MODE_ISDBT:
+ case DEVICE_MODE_ISDBT_BDA:
+ fep->frequency = td->Frequency;
+ fep->bandwidth_hz = 6000000;
+ /* todo: retrive the other parameters */
+ break;
+ default:
+ return -EINVAL;
+ }
return 0;
}
@@ -872,11 +981,11 @@
switch (smscore_get_device_mode(coredev)) {
case DEVICE_MODE_DVBT:
case DEVICE_MODE_DVBT_BDA:
- smsdvb_fe_ops.delsys[0] = SYS_DVBT;
+ client->frontend.ops.delsys[0] = SYS_DVBT;
break;
case DEVICE_MODE_ISDBT:
case DEVICE_MODE_ISDBT_BDA:
- smsdvb_fe_ops.delsys[0] = SYS_ISDBT;
+ client->frontend.ops.delsys[0] = SYS_ISDBT;
break;
}
diff --git a/drivers/media/video/davinci/isif.c b/drivers/media/video/davinci/isif.c
index 1e63852..5278fe7 100644
--- a/drivers/media/video/davinci/isif.c
+++ b/drivers/media/video/davinci/isif.c
@@ -34,6 +34,7 @@
#include <linux/videodev2.h>
#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/module.h>
#include <mach/mux.h>
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index c7e69b8..4a44f9a 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -611,9 +611,11 @@
delta_stc = buf->pts - (1UL << 31);
x1 = first->dev_stc - delta_stc;
x2 = last->dev_stc - delta_stc;
+ if (x1 == x2)
+ goto done;
+
y1 = (first->dev_sof + 2048) << 16;
y2 = (last->dev_sof + 2048) << 16;
-
if (y2 < y1)
y2 += 2048 << 16;
@@ -631,14 +633,16 @@
x1, x2, y1, y2, clock->sof_offset);
/* Second step, SOF to host clock conversion. */
- ts = timespec_sub(last->host_ts, first->host_ts);
x1 = (uvc_video_clock_host_sof(first) + 2048) << 16;
x2 = (uvc_video_clock_host_sof(last) + 2048) << 16;
- y1 = NSEC_PER_SEC;
- y2 = (ts.tv_sec + 1) * NSEC_PER_SEC + ts.tv_nsec;
-
if (x2 < x1)
x2 += 2048 << 16;
+ if (x1 == x2)
+ goto done;
+
+ ts = timespec_sub(last->host_ts, first->host_ts);
+ y1 = NSEC_PER_SEC;
+ y2 = (ts.tv_sec + 1) * NSEC_PER_SEC + ts.tv_nsec;
/* Interpolated and host SOF timestamps can wrap around at slightly
* different times. Handle this by adding or removing 2048 to or from
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 7aee469..99389c8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -1934,7 +1934,7 @@
}
if (bp->port.pmf)
- bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
+ bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
else
bnx2x__link_status_update(bp);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index bf27c54..4f40f7d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -1179,10 +1179,16 @@
*/
static inline u8 bnx2x_stats_id(struct bnx2x_fastpath *fp)
{
- if (!CHIP_IS_E1x(fp->bp))
+ struct bnx2x *bp = fp->bp;
+ if (!CHIP_IS_E1x(bp)) {
+#ifdef BCM_CNIC
+ /* there are special statistics counters for FCoE 136..140 */
+ if (IS_FCOE_FP(fp))
+ return bp->cnic_base_cl_id + (bp->pf_num >> 1);
+#endif
return fp->cl_id;
- else
- return fp->cl_id + BP_PORT(fp->bp) * FP_SB_MAX_E1x;
+ }
+ return fp->cl_id + BP_PORT(bp) * FP_SB_MAX_E1x;
}
static inline void bnx2x_init_vlan_mac_fp_objs(struct bnx2x_fastpath *fp,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 5051cf3..6d82ade 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -735,7 +735,9 @@
bp->dcbx_error);
/* mark DCBX result for PMF migration */
- bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 1);
+ bnx2x_update_drv_flags(bp,
+ 1 << DRV_FLAGS_DCB_CONFIGURED,
+ 1);
#ifdef BCM_DCBNL
/*
* Add new app tlvs to dcbnl
@@ -1020,7 +1022,7 @@
DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
dcbx_lldp_params_offset);
- bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
+ bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
bnx2x_dcbx_admin_mib_updated_params(bp,
@@ -1857,7 +1859,7 @@
* read it from shmem and update bp and netdev accordingly
*/
if (SHMEM2_HAS(bp, drv_flags) &&
- GET_FLAGS(SHMEM2_RD(bp, drv_flags), DRV_FLAGS_DCB_CONFIGURED)) {
+ GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
/* Read neg results if dcbx is in the FW */
if (bnx2x_dcbx_read_shmem_neg_results(bp))
return;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 2545213..b69f876 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -10824,38 +10824,36 @@
int bnx2x_init_firmware(struct bnx2x *bp)
{
+ const char *fw_file_name;
struct bnx2x_fw_file_hdr *fw_hdr;
int rc;
+ if (bp->firmware)
+ return 0;
- if (!bp->firmware) {
- const char *fw_file_name;
+ if (CHIP_IS_E1(bp))
+ fw_file_name = FW_FILE_NAME_E1;
+ else if (CHIP_IS_E1H(bp))
+ fw_file_name = FW_FILE_NAME_E1H;
+ else if (!CHIP_IS_E1x(bp))
+ fw_file_name = FW_FILE_NAME_E2;
+ else {
+ BNX2X_ERR("Unsupported chip revision\n");
+ return -EINVAL;
+ }
+ BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
- if (CHIP_IS_E1(bp))
- fw_file_name = FW_FILE_NAME_E1;
- else if (CHIP_IS_E1H(bp))
- fw_file_name = FW_FILE_NAME_E1H;
- else if (!CHIP_IS_E1x(bp))
- fw_file_name = FW_FILE_NAME_E2;
- else {
- BNX2X_ERR("Unsupported chip revision\n");
- return -EINVAL;
- }
- BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
+ rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev);
+ if (rc) {
+ BNX2X_ERR("Can't load firmware file %s\n",
+ fw_file_name);
+ goto request_firmware_exit;
+ }
- rc = request_firmware(&bp->firmware, fw_file_name,
- &bp->pdev->dev);
- if (rc) {
- BNX2X_ERR("Can't load firmware file %s\n",
- fw_file_name);
- goto request_firmware_exit;
- }
-
- rc = bnx2x_check_firmware(bp);
- if (rc) {
- BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
- goto request_firmware_exit;
- }
+ rc = bnx2x_check_firmware(bp);
+ if (rc) {
+ BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
+ goto request_firmware_exit;
}
fw_hdr = (struct bnx2x_fw_file_hdr *)bp->firmware->data;
@@ -10901,6 +10899,7 @@
kfree(bp->init_data);
request_firmware_exit:
release_firmware(bp->firmware);
+ bp->firmware = NULL;
return rc;
}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index cb6339c..94110e9 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -5601,7 +5601,7 @@
/* Fill the ramrod data with provided parameters */
rdata->function_mode = cpu_to_le16(start_params->mf_mode);
- rdata->sd_vlan_tag = start_params->sd_vlan_tag;
+ rdata->sd_vlan_tag = cpu_to_le16(start_params->sd_vlan_tag);
rdata->path_id = BP_PATH(bp);
rdata->network_cos_mode = start_params->network_cos_mode;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 1adef26..a766b25 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -554,23 +554,11 @@
UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
/* collect PFC stats */
- DIFF_64(diff.hi, new->tx_stat_gtpp_hi,
- pstats->pfc_frames_tx_hi,
- diff.lo, new->tx_stat_gtpp_lo,
- pstats->pfc_frames_tx_lo);
pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;
- ADD_64(pstats->pfc_frames_tx_hi, diff.hi,
- pstats->pfc_frames_tx_lo, diff.lo);
- DIFF_64(diff.hi, new->rx_stat_grpp_hi,
- pstats->pfc_frames_rx_hi,
- diff.lo, new->rx_stat_grpp_lo,
- pstats->pfc_frames_rx_lo);
pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
- ADD_64(pstats->pfc_frames_rx_hi, diff.hi,
- pstats->pfc_frames_rx_lo, diff.lo);
}
estats->pause_frames_received_hi =
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index bf01841..610860f 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -166,7 +166,7 @@
dev_kfree_skb(skb);
net->stats.tx_dropped++;
- return NETDEV_TX_BUSY;
+ return NETDEV_TX_OK;
}
packet->extension = (void *)(unsigned long)packet +
@@ -226,7 +226,7 @@
dev_kfree_skb_any(skb);
}
- return ret ? NETDEV_TX_BUSY : NETDEV_TX_OK;
+ return NETDEV_TX_OK;
}
/*
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 93c5d72..2d7601d 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -359,7 +359,7 @@
{
struct tun_struct *tun = netdev_priv(dev);
- sock_put(tun->socket.sk);
+ sk_release_kernel(tun->socket.sk);
}
/* Net device open. */
@@ -980,10 +980,18 @@
return ret;
}
+static int tun_release(struct socket *sock)
+{
+ if (sock->sk)
+ sock_put(sock->sk);
+ return 0;
+}
+
/* Ops structure to mimic raw sockets with tun */
static const struct proto_ops tun_socket_ops = {
.sendmsg = tun_sendmsg,
.recvmsg = tun_recvmsg,
+ .release = tun_release,
};
static struct proto tun_proto = {
@@ -1110,10 +1118,11 @@
tun->vnet_hdr_sz = sizeof(struct virtio_net_hdr);
err = -ENOMEM;
- sk = sk_alloc(net, AF_UNSPEC, GFP_KERNEL, &tun_proto);
+ sk = sk_alloc(&init_net, AF_UNSPEC, GFP_KERNEL, &tun_proto);
if (!sk)
goto err_free_dev;
+ sk_change_net(sk, net);
tun->socket.wq = &tun->wq;
init_waitqueue_head(&tun->wq.wait);
tun->socket.ops = &tun_socket_ops;
@@ -1174,7 +1183,7 @@
return 0;
err_free_sk:
- sock_put(sk);
+ tun_free_netdev(dev);
err_free_dev:
free_netdev(dev);
failed:
diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index 8e84f5b..d6da5ee 100644
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -1599,6 +1599,10 @@
USB_DEVICE (0x6189, 0x182d),
.driver_info = (unsigned long) &ax8817x_info,
}, {
+ // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
+ USB_DEVICE (0x0df6, 0x0056),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
// corega FEther USB2-TX
USB_DEVICE (0x07aa, 0x0017),
.driver_info = (unsigned long) &ax8817x_info,
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 81b96e3..59681f0 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -328,13 +328,13 @@
unsigned long lockflags;
size_t size = dev->rx_urb_size;
- if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) {
+ skb = __netdev_alloc_skb_ip_align(dev->net, size, flags);
+ if (!skb) {
netif_dbg(dev, rx_err, dev->net, "no rx skb\n");
usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
usb_free_urb (urb);
return -ENOMEM;
}
- skb_reserve (skb, NET_IP_ALIGN);
entry = (struct skb_data *) skb->cb;
entry->urb = urb;
diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c
index 64a1106..63e4b70 100644
--- a/drivers/net/wimax/i2400m/netdev.c
+++ b/drivers/net/wimax/i2400m/netdev.c
@@ -367,38 +367,28 @@
{
struct i2400m *i2400m = net_dev_to_i2400m(net_dev);
struct device *dev = i2400m_dev(i2400m);
- int result;
+ int result = -1;
d_fnstart(3, dev, "(skb %p net_dev %p)\n", skb, net_dev);
- if (skb_header_cloned(skb)) {
- /*
- * Make tcpdump/wireshark happy -- if they are
- * running, the skb is cloned and we will overwrite
- * the mac fields in i2400m_tx_prep_header. Expand
- * seems to fix this...
- */
- result = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
- if (result) {
- result = NETDEV_TX_BUSY;
- goto error_expand;
- }
- }
+
+ if (skb_header_cloned(skb) &&
+ pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
+ goto drop;
if (i2400m->state == I2400M_SS_IDLE)
result = i2400m_net_wake_tx(i2400m, net_dev, skb);
else
result = i2400m_net_tx(i2400m, net_dev, skb);
- if (result < 0)
+ if (result < 0) {
+drop:
net_dev->stats.tx_dropped++;
- else {
+ } else {
net_dev->stats.tx_packets++;
net_dev->stats.tx_bytes += skb->len;
}
- result = NETDEV_TX_OK;
-error_expand:
- kfree_skb(skb);
+ dev_kfree_skb(skb);
d_fnend(3, dev, "(skb %p net_dev %p) = %d\n", skb, net_dev, result);
- return result;
+ return NETDEV_TX_OK;
}
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index 54b2d39..a7dfba8 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -2475,7 +2475,7 @@
container_of(data, struct il_priv, alive_start.work);
mutex_lock(&il->mutex);
- if (test_bit(S_EXIT_PENDING, &il->status))
+ if (test_bit(S_EXIT_PENDING, &il->status) || il->txq == NULL)
goto out;
il3945_alive_start(il);
diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c
index 1489b15..c80eb9b 100644
--- a/drivers/net/wireless/iwlegacy/3945.c
+++ b/drivers/net/wireless/iwlegacy/3945.c
@@ -1870,11 +1870,12 @@
struct il_priv *il = container_of(work, struct il_priv,
_3945.thermal_periodic.work);
- if (test_bit(S_EXIT_PENDING, &il->status))
- return;
-
mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status) || il->txq == NULL)
+ goto out;
+
il3945_reg_txpower_periodic(il);
+out:
mutex_unlock(&il->mutex);
}
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index d2a1ea9..fd356b7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -426,10 +426,14 @@
/*
* If the data queue was below the threshold before the txdone
* handler we must make sure the packet queue in the mac80211 stack
- * is reenabled when the txdone handler has finished.
+ * is reenabled when the txdone handler has finished. This has to be
+ * serialized with rt2x00mac_tx(), otherwise we can wake up queue
+ * before it was stopped.
*/
+ spin_lock_bh(&entry->queue->tx_lock);
if (!rt2x00queue_threshold(entry->queue))
rt2x00queue_unpause_queue(entry->queue);
+ spin_unlock_bh(&entry->queue->tx_lock);
}
EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index ede3c58..2df2eb6 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -152,13 +152,22 @@
if (unlikely(rt2x00queue_write_tx_frame(queue, skb, false)))
goto exit_fail;
+ /*
+ * Pausing queue has to be serialized with rt2x00lib_txdone(). Note
+ * we should not use spin_lock_bh variant as bottom halve was already
+ * disabled before ieee80211_xmit() call.
+ */
+ spin_lock(&queue->tx_lock);
if (rt2x00queue_threshold(queue))
rt2x00queue_pause_queue(queue);
+ spin_unlock(&queue->tx_lock);
return;
exit_fail:
+ spin_lock(&queue->tx_lock);
rt2x00queue_pause_queue(queue);
+ spin_unlock(&queue->tx_lock);
exit_free_skb:
ieee80211_free_txskb(hw, skb);
}
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 5adfb3e..9b1b2b7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -619,6 +619,9 @@
else if (test_bit(REQUIRE_DMA, &queue->rt2x00dev->cap_flags))
rt2x00queue_align_frame(skb);
+ /*
+ * That function must be called with bh disabled.
+ */
spin_lock(&queue->tx_lock);
if (unlikely(rt2x00queue_full(queue))) {
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 1cfbf22..24f049e 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -500,6 +500,9 @@
int pos;
u32 reg32;
+ if (aspm_disabled)
+ return 0;
+
/*
* Some functions in a slot might not all be PCIe functions,
* very strange. Disable ASPM for the whole slot
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index f995e6e..15dbd8c 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -143,6 +143,30 @@
If you are not sure, say N here.
+config FUJITSU_TABLET
+ tristate "Fujitsu Tablet Extras"
+ depends on ACPI
+ depends on INPUT
+ ---help---
+ This is a driver for tablets built by Fujitsu:
+
+ * Lifebook P1510/P1610/P1620/Txxxx
+ * Stylistic ST5xxx
+ * Possibly other Fujitsu tablet models
+
+ It adds support for the panel buttons, docking station detection,
+ tablet/notebook mode detection for convertible and
+ orientation detection for docked slates.
+
+ If you have a Fujitsu convertible or slate, say Y or M here.
+
+config AMILO_RFKILL
+ tristate "Fujitsu-Siemens Amilo rfkill support"
+ depends on RFKILL
+ ---help---
+ This is a driver for enabling wifi on some Fujitsu-Siemens Amilo
+ laptops.
+
config TC1100_WMI
tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
depends on !X86_64
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 293a320..d328f21 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -17,12 +17,14 @@
obj-$(CONFIG_ACERHDF) += acerhdf.o
obj-$(CONFIG_HP_ACCEL) += hp_accel.o
obj-$(CONFIG_HP_WMI) += hp-wmi.o
+obj-$(CONFIG_AMILO_RFKILL) += amilo-rfkill.o
obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o
obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
obj-$(CONFIG_IDEAPAD_LAPTOP) += ideapad-laptop.o
obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
obj-$(CONFIG_SENSORS_HDAPS) += hdaps.o
obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o
+obj-$(CONFIG_FUJITSU_TABLET) += fujitsu-tablet.o
obj-$(CONFIG_PANASONIC_LAPTOP) += panasonic-laptop.o
obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o
obj-$(CONFIG_ACPI_WMI) += wmi.o
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index b848277..1e5290b 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -679,6 +679,32 @@
return AE_OK;
}
+static int AMW0_set_cap_acpi_check_device_found;
+
+static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
+ u32 level, void *context, void **retval)
+{
+ AMW0_set_cap_acpi_check_device_found = 1;
+ return AE_OK;
+}
+
+static const struct acpi_device_id norfkill_ids[] = {
+ { "VPC2004", 0},
+ { "IBM0068", 0},
+ { "LEN0068", 0},
+ { "", 0},
+};
+
+static int AMW0_set_cap_acpi_check_device(void)
+{
+ const struct acpi_device_id *id;
+
+ for (id = norfkill_ids; id->id[0]; id++)
+ acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
+ NULL, NULL);
+ return AMW0_set_cap_acpi_check_device_found;
+}
+
static acpi_status AMW0_set_capabilities(void)
{
struct wmab_args args;
@@ -692,7 +718,9 @@
* work.
*/
if (wmi_has_guid(AMW0_GUID2)) {
- interface->capability |= ACER_CAP_WIRELESS;
+ if ((quirks != &quirk_unknown) ||
+ !AMW0_set_cap_acpi_check_device())
+ interface->capability |= ACER_CAP_WIRELESS;
return AE_OK;
}
diff --git a/drivers/platform/x86/amilo-rfkill.c b/drivers/platform/x86/amilo-rfkill.c
new file mode 100644
index 0000000..19170bb
--- /dev/null
+++ b/drivers/platform/x86/amilo-rfkill.c
@@ -0,0 +1,173 @@
+/*
+ * Support for rfkill on some Fujitsu-Siemens Amilo laptops.
+ * Copyright 2011 Ben Hutchings.
+ *
+ * Based in part on the fsam7440 driver, which is:
+ * Copyright 2005 Alejandro Vidal Mata & Javier Vidal Mata.
+ * and on the fsaa1655g driver, which is:
+ * Copyright 2006 Martin Večeřa.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/dmi.h>
+#include <linux/i8042.h>
+#include <linux/io.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/rfkill.h>
+
+/*
+ * These values were obtained from disassembling and debugging the
+ * PM.exe program installed in the Fujitsu-Siemens AMILO A1655G
+ */
+#define A1655_WIFI_COMMAND 0x10C5
+#define A1655_WIFI_ON 0x25
+#define A1655_WIFI_OFF 0x45
+
+static int amilo_a1655_rfkill_set_block(void *data, bool blocked)
+{
+ u8 param = blocked ? A1655_WIFI_OFF : A1655_WIFI_ON;
+ int rc;
+
+ i8042_lock_chip();
+ rc = i8042_command(¶m, A1655_WIFI_COMMAND);
+ i8042_unlock_chip();
+ return rc;
+}
+
+static const struct rfkill_ops amilo_a1655_rfkill_ops = {
+ .set_block = amilo_a1655_rfkill_set_block
+};
+
+/*
+ * These values were obtained from disassembling the PM.exe program
+ * installed in the Fujitsu-Siemens AMILO M 7440
+ */
+#define M7440_PORT1 0x118f
+#define M7440_PORT2 0x118e
+#define M7440_RADIO_ON1 0x12
+#define M7440_RADIO_ON2 0x80
+#define M7440_RADIO_OFF1 0x10
+#define M7440_RADIO_OFF2 0x00
+
+static int amilo_m7440_rfkill_set_block(void *data, bool blocked)
+{
+ u8 val1 = blocked ? M7440_RADIO_OFF1 : M7440_RADIO_ON1;
+ u8 val2 = blocked ? M7440_RADIO_OFF2 : M7440_RADIO_ON2;
+
+ outb(val1, M7440_PORT1);
+ outb(val2, M7440_PORT2);
+
+ /* Check whether the state has changed correctly */
+ if (inb(M7440_PORT1) != val1 || inb(M7440_PORT2) != val2)
+ return -EIO;
+
+ return 0;
+}
+
+static const struct rfkill_ops amilo_m7440_rfkill_ops = {
+ .set_block = amilo_m7440_rfkill_set_block
+};
+
+static const struct dmi_system_id __devinitdata amilo_rfkill_id_table[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_BOARD_NAME, "AMILO A1655"),
+ },
+ .driver_data = (void *)&amilo_a1655_rfkill_ops
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_BOARD_NAME, "AMILO M7440"),
+ },
+ .driver_data = (void *)&amilo_m7440_rfkill_ops
+ },
+ {}
+};
+
+static struct platform_device *amilo_rfkill_pdev;
+static struct rfkill *amilo_rfkill_dev;
+
+static int __devinit amilo_rfkill_probe(struct platform_device *device)
+{
+ const struct dmi_system_id *system_id =
+ dmi_first_match(amilo_rfkill_id_table);
+ int rc;
+
+ amilo_rfkill_dev = rfkill_alloc(KBUILD_MODNAME, &device->dev,
+ RFKILL_TYPE_WLAN,
+ system_id->driver_data, NULL);
+ if (!amilo_rfkill_dev)
+ return -ENOMEM;
+
+ rc = rfkill_register(amilo_rfkill_dev);
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ rfkill_destroy(amilo_rfkill_dev);
+ return rc;
+}
+
+static int amilo_rfkill_remove(struct platform_device *device)
+{
+ rfkill_unregister(amilo_rfkill_dev);
+ rfkill_destroy(amilo_rfkill_dev);
+ return 0;
+}
+
+static struct platform_driver amilo_rfkill_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = amilo_rfkill_probe,
+ .remove = amilo_rfkill_remove,
+};
+
+static int __init amilo_rfkill_init(void)
+{
+ int rc;
+
+ if (dmi_first_match(amilo_rfkill_id_table) == NULL)
+ return -ENODEV;
+
+ rc = platform_driver_register(&amilo_rfkill_driver);
+ if (rc)
+ return rc;
+
+ amilo_rfkill_pdev = platform_device_register_simple(KBUILD_MODNAME, -1,
+ NULL, 0);
+ if (IS_ERR(amilo_rfkill_pdev)) {
+ rc = PTR_ERR(amilo_rfkill_pdev);
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ platform_driver_unregister(&amilo_rfkill_driver);
+ return rc;
+}
+
+static void __exit amilo_rfkill_exit(void)
+{
+ platform_device_unregister(amilo_rfkill_pdev);
+ platform_driver_unregister(&amilo_rfkill_driver);
+}
+
+MODULE_AUTHOR("Ben Hutchings <ben@decadent.org.uk>");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(dmi, amilo_rfkill_id_table);
+
+module_init(amilo_rfkill_init);
+module_exit(amilo_rfkill_exit);
diff --git a/drivers/platform/x86/fujitsu-tablet.c b/drivers/platform/x86/fujitsu-tablet.c
new file mode 100644
index 0000000..580d80a
--- /dev/null
+++ b/drivers/platform/x86/fujitsu-tablet.c
@@ -0,0 +1,478 @@
+/*
+ * Copyright (C) 2006-2012 Robert Gerlach <khnz@gmx.de>
+ * Copyright (C) 2005-2006 Jan Rychter <jan@rychter.com>
+ *
+ * You can redistribute and/or modify this program under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/dmi.h>
+
+#define MODULENAME "fujitsu-tablet"
+
+#define ACPI_FUJITSU_CLASS "fujitsu"
+
+#define INVERT_TABLET_MODE_BIT 0x01
+#define FORCE_TABLET_MODE_IF_UNDOCK 0x02
+
+#define KEYMAP_LEN 16
+
+static const struct acpi_device_id fujitsu_ids[] = {
+ { .id = "FUJ02BD" },
+ { .id = "FUJ02BF" },
+ { .id = "" }
+};
+
+struct fujitsu_config {
+ unsigned short keymap[KEYMAP_LEN];
+ unsigned int quirks;
+};
+
+static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initconst = {
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_SCROLLDOWN,
+ KEY_SCROLLUP,
+ KEY_DIRECTION,
+ KEY_LEFTCTRL,
+ KEY_BRIGHTNESSUP,
+ KEY_BRIGHTNESSDOWN,
+ KEY_BRIGHTNESS_ZERO,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_LEFTALT
+};
+
+static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initconst = {
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_PROG1,
+ KEY_PROG2,
+ KEY_DIRECTION,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_UP,
+ KEY_DOWN,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_LEFTCTRL,
+ KEY_LEFTALT
+};
+
+static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initconst = {
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_PRINT,
+ KEY_BACKSPACE,
+ KEY_SPACE,
+ KEY_ENTER,
+ KEY_BRIGHTNESSUP,
+ KEY_BRIGHTNESSDOWN,
+ KEY_DOWN,
+ KEY_UP,
+ KEY_SCROLLUP,
+ KEY_SCROLLDOWN,
+ KEY_LEFTCTRL,
+ KEY_LEFTALT
+};
+
+static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initconst = {
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_MAIL,
+ KEY_DIRECTION,
+ KEY_ESC,
+ KEY_ENTER,
+ KEY_BRIGHTNESSUP,
+ KEY_BRIGHTNESSDOWN,
+ KEY_DOWN,
+ KEY_UP,
+ KEY_SCROLLUP,
+ KEY_SCROLLDOWN,
+ KEY_LEFTCTRL,
+ KEY_LEFTALT
+};
+
+static struct {
+ struct input_dev *idev;
+ struct fujitsu_config config;
+ unsigned long prev_keymask;
+
+ char phys[21];
+
+ int irq;
+ int io_base;
+ int io_length;
+} fujitsu;
+
+static u8 fujitsu_ack(void)
+{
+ return inb(fujitsu.io_base + 2);
+}
+
+static u8 fujitsu_status(void)
+{
+ return inb(fujitsu.io_base + 6);
+}
+
+static u8 fujitsu_read_register(const u8 addr)
+{
+ outb(addr, fujitsu.io_base);
+ return inb(fujitsu.io_base + 4);
+}
+
+static void fujitsu_send_state(void)
+{
+ int state;
+ int dock, tablet_mode;
+
+ state = fujitsu_read_register(0xdd);
+
+ dock = state & 0x02;
+
+ if ((fujitsu.config.quirks & FORCE_TABLET_MODE_IF_UNDOCK) && (!dock)) {
+ tablet_mode = 1;
+ } else{
+ tablet_mode = state & 0x01;
+ if (fujitsu.config.quirks & INVERT_TABLET_MODE_BIT)
+ tablet_mode = !tablet_mode;
+ }
+
+ input_report_switch(fujitsu.idev, SW_DOCK, dock);
+ input_report_switch(fujitsu.idev, SW_TABLET_MODE, tablet_mode);
+ input_sync(fujitsu.idev);
+}
+
+static void fujitsu_reset(void)
+{
+ int timeout = 50;
+
+ fujitsu_ack();
+
+ while ((fujitsu_status() & 0x02) && (--timeout))
+ msleep(20);
+
+ fujitsu_send_state();
+}
+
+static int __devinit input_fujitsu_setup(struct device *parent,
+ const char *name, const char *phys)
+{
+ struct input_dev *idev;
+ int error;
+ int i;
+
+ idev = input_allocate_device();
+ if (!idev)
+ return -ENOMEM;
+
+ idev->dev.parent = parent;
+ idev->phys = phys;
+ idev->name = name;
+ idev->id.bustype = BUS_HOST;
+ idev->id.vendor = 0x1734; /* Fujitsu Siemens Computer GmbH */
+ idev->id.product = 0x0001;
+ idev->id.version = 0x0101;
+
+ idev->keycode = fujitsu.config.keymap;
+ idev->keycodesize = sizeof(fujitsu.config.keymap[0]);
+ idev->keycodemax = ARRAY_SIZE(fujitsu.config.keymap);
+
+ __set_bit(EV_REP, idev->evbit);
+
+ for (i = 0; i < ARRAY_SIZE(fujitsu.config.keymap); i++)
+ if (fujitsu.config.keymap[i])
+ input_set_capability(idev, EV_KEY, fujitsu.config.keymap[i]);
+
+ input_set_capability(idev, EV_MSC, MSC_SCAN);
+
+ input_set_capability(idev, EV_SW, SW_DOCK);
+ input_set_capability(idev, EV_SW, SW_TABLET_MODE);
+
+ input_set_capability(idev, EV_SW, SW_DOCK);
+ input_set_capability(idev, EV_SW, SW_TABLET_MODE);
+
+ error = input_register_device(idev);
+ if (error) {
+ input_free_device(idev);
+ return error;
+ }
+
+ fujitsu.idev = idev;
+ return 0;
+}
+
+static void input_fujitsu_remove(void)
+{
+ input_unregister_device(fujitsu.idev);
+}
+
+static irqreturn_t fujitsu_interrupt(int irq, void *dev_id)
+{
+ unsigned long keymask, changed;
+ unsigned int keycode;
+ int pressed;
+ int i;
+
+ if (unlikely(!(fujitsu_status() & 0x01)))
+ return IRQ_NONE;
+
+ fujitsu_send_state();
+
+ keymask = fujitsu_read_register(0xde);
+ keymask |= fujitsu_read_register(0xdf) << 8;
+ keymask ^= 0xffff;
+
+ changed = keymask ^ fujitsu.prev_keymask;
+ if (changed) {
+ fujitsu.prev_keymask = keymask;
+
+ for_each_set_bit(i, &changed, KEYMAP_LEN) {
+ keycode = fujitsu.config.keymap[i];
+ pressed = keymask & changed & BIT(i);
+
+ if (pressed)
+ input_event(fujitsu.idev, EV_MSC, MSC_SCAN, i);
+
+ input_report_key(fujitsu.idev, keycode, pressed);
+ input_sync(fujitsu.idev);
+ }
+ }
+
+ fujitsu_ack();
+ return IRQ_HANDLED;
+}
+
+static int __devinit fujitsu_dmi_default(const struct dmi_system_id *dmi)
+{
+ printk(KERN_INFO MODULENAME ": %s\n", dmi->ident);
+ memcpy(fujitsu.config.keymap, dmi->driver_data,
+ sizeof(fujitsu.config.keymap));
+ return 1;
+}
+
+static int __devinit fujitsu_dmi_stylistic(const struct dmi_system_id *dmi)
+{
+ fujitsu_dmi_default(dmi);
+ fujitsu.config.quirks |= FORCE_TABLET_MODE_IF_UNDOCK;
+ fujitsu.config.quirks |= INVERT_TABLET_MODE_BIT;
+ return 1;
+}
+
+static struct dmi_system_id dmi_ids[] __initconst = {
+ {
+ .callback = fujitsu_dmi_default,
+ .ident = "Fujitsu Siemens P/T Series",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK")
+ },
+ .driver_data = keymap_Lifebook_Tseries
+ },
+ {
+ .callback = fujitsu_dmi_default,
+ .ident = "Fujitsu Lifebook T Series",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook T")
+ },
+ .driver_data = keymap_Lifebook_Tseries
+ },
+ {
+ .callback = fujitsu_dmi_stylistic,
+ .ident = "Fujitsu Siemens Stylistic T Series",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic T")
+ },
+ .driver_data = keymap_Stylistic_Tseries
+ },
+ {
+ .callback = fujitsu_dmi_default,
+ .ident = "Fujitsu LifeBook U810",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook U810")
+ },
+ .driver_data = keymap_Lifebook_U810
+ },
+ {
+ .callback = fujitsu_dmi_stylistic,
+ .ident = "Fujitsu Siemens Stylistic ST5xxx Series",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "STYLISTIC ST5")
+ },
+ .driver_data = keymap_Stylistic_ST5xxx
+ },
+ {
+ .callback = fujitsu_dmi_stylistic,
+ .ident = "Fujitsu Siemens Stylistic ST5xxx Series",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic ST5")
+ },
+ .driver_data = keymap_Stylistic_ST5xxx
+ },
+ {
+ .callback = fujitsu_dmi_default,
+ .ident = "Unknown (using defaults)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, ""),
+ DMI_MATCH(DMI_PRODUCT_NAME, "")
+ },
+ .driver_data = keymap_Lifebook_Tseries
+ },
+ { NULL }
+};
+
+static acpi_status __devinit
+fujitsu_walk_resources(struct acpi_resource *res, void *data)
+{
+ switch (res->type) {
+ case ACPI_RESOURCE_TYPE_IRQ:
+ fujitsu.irq = res->data.irq.interrupts[0];
+ return AE_OK;
+
+ case ACPI_RESOURCE_TYPE_IO:
+ fujitsu.io_base = res->data.io.minimum;
+ fujitsu.io_length = res->data.io.address_length;
+ return AE_OK;
+
+ case ACPI_RESOURCE_TYPE_END_TAG:
+ if (fujitsu.irq && fujitsu.io_base)
+ return AE_OK;
+ else
+ return AE_NOT_FOUND;
+
+ default:
+ return AE_ERROR;
+ }
+}
+
+static int __devinit acpi_fujitsu_add(struct acpi_device *adev)
+{
+ acpi_status status;
+ int error;
+
+ if (!adev)
+ return -EINVAL;
+
+ status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
+ fujitsu_walk_resources, NULL);
+ if (ACPI_FAILURE(status) || !fujitsu.irq || !fujitsu.io_base)
+ return -ENODEV;
+
+ sprintf(acpi_device_name(adev), "Fujitsu %s", acpi_device_hid(adev));
+ sprintf(acpi_device_class(adev), "%s", ACPI_FUJITSU_CLASS);
+
+ snprintf(fujitsu.phys, sizeof(fujitsu.phys),
+ "%s/input0", acpi_device_hid(adev));
+
+ error = input_fujitsu_setup(&adev->dev,
+ acpi_device_name(adev), fujitsu.phys);
+ if (error)
+ return error;
+
+ if (!request_region(fujitsu.io_base, fujitsu.io_length, MODULENAME)) {
+ input_fujitsu_remove();
+ return -EBUSY;
+ }
+
+ fujitsu_reset();
+
+ error = request_irq(fujitsu.irq, fujitsu_interrupt,
+ IRQF_SHARED, MODULENAME, fujitsu_interrupt);
+ if (error) {
+ release_region(fujitsu.io_base, fujitsu.io_length);
+ input_fujitsu_remove();
+ return error;
+ }
+
+ return 0;
+}
+
+static int __devexit acpi_fujitsu_remove(struct acpi_device *adev, int type)
+{
+ free_irq(fujitsu.irq, fujitsu_interrupt);
+ release_region(fujitsu.io_base, fujitsu.io_length);
+ input_fujitsu_remove();
+ return 0;
+}
+
+static int acpi_fujitsu_resume(struct acpi_device *adev)
+{
+ fujitsu_reset();
+ return 0;
+}
+
+static struct acpi_driver acpi_fujitsu_driver = {
+ .name = MODULENAME,
+ .class = "hotkey",
+ .ids = fujitsu_ids,
+ .ops = {
+ .add = acpi_fujitsu_add,
+ .remove = acpi_fujitsu_remove,
+ .resume = acpi_fujitsu_resume,
+ }
+};
+
+static int __init fujitsu_module_init(void)
+{
+ int error;
+
+ dmi_check_system(dmi_ids);
+
+ error = acpi_bus_register_driver(&acpi_fujitsu_driver);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+static void __exit fujitsu_module_exit(void)
+{
+ acpi_bus_unregister_driver(&acpi_fujitsu_driver);
+}
+
+module_init(fujitsu_module_init);
+module_exit(fujitsu_module_exit);
+
+MODULE_AUTHOR("Robert Gerlach <khnz@gmx.de>");
+MODULE_DESCRIPTION("Fujitsu tablet pc extras driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("2.4");
+
+MODULE_DEVICE_TABLE(acpi, fujitsu_ids);
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 05be30e..ffff8b4 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -562,8 +562,8 @@
num_sifr = acpi_pcc_get_sqty(device);
- if (num_sifr > 255) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr too large"));
+ if (num_sifr < 0 || num_sifr > 255) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr out of range"));
return -ENODEV;
}
diff --git a/drivers/rapidio/devices/tsi721.h b/drivers/rapidio/devices/tsi721.h
index 822e54c..1c226b3 100644
--- a/drivers/rapidio/devices/tsi721.h
+++ b/drivers/rapidio/devices/tsi721.h
@@ -118,34 +118,34 @@
#define TSI721_IDB_ENTRY_SIZE 64
-#define TSI721_IDQ_CTL(x) (0x20000 + (x) * 1000)
+#define TSI721_IDQ_CTL(x) (0x20000 + (x) * 0x1000)
#define TSI721_IDQ_SUSPEND 0x00000002
#define TSI721_IDQ_INIT 0x00000001
-#define TSI721_IDQ_STS(x) (0x20004 + (x) * 1000)
+#define TSI721_IDQ_STS(x) (0x20004 + (x) * 0x1000)
#define TSI721_IDQ_RUN 0x00200000
-#define TSI721_IDQ_MASK(x) (0x20008 + (x) * 1000)
+#define TSI721_IDQ_MASK(x) (0x20008 + (x) * 0x1000)
#define TSI721_IDQ_MASK_MASK 0xffff0000
#define TSI721_IDQ_MASK_PATT 0x0000ffff
-#define TSI721_IDQ_RP(x) (0x2000c + (x) * 1000)
+#define TSI721_IDQ_RP(x) (0x2000c + (x) * 0x1000)
#define TSI721_IDQ_RP_PTR 0x0007ffff
-#define TSI721_IDQ_WP(x) (0x20010 + (x) * 1000)
+#define TSI721_IDQ_WP(x) (0x20010 + (x) * 0x1000)
#define TSI721_IDQ_WP_PTR 0x0007ffff
-#define TSI721_IDQ_BASEL(x) (0x20014 + (x) * 1000)
+#define TSI721_IDQ_BASEL(x) (0x20014 + (x) * 0x1000)
#define TSI721_IDQ_BASEL_ADDR 0xffffffc0
-#define TSI721_IDQ_BASEU(x) (0x20018 + (x) * 1000)
-#define TSI721_IDQ_SIZE(x) (0x2001c + (x) * 1000)
+#define TSI721_IDQ_BASEU(x) (0x20018 + (x) * 0x1000)
+#define TSI721_IDQ_SIZE(x) (0x2001c + (x) * 0x1000)
#define TSI721_IDQ_SIZE_VAL(size) (__fls(size) - 4)
#define TSI721_IDQ_SIZE_MIN 512
#define TSI721_IDQ_SIZE_MAX (512 * 1024)
-#define TSI721_SR_CHINT(x) (0x20040 + (x) * 1000)
-#define TSI721_SR_CHINTE(x) (0x20044 + (x) * 1000)
-#define TSI721_SR_CHINTSET(x) (0x20048 + (x) * 1000)
+#define TSI721_SR_CHINT(x) (0x20040 + (x) * 0x1000)
+#define TSI721_SR_CHINTE(x) (0x20044 + (x) * 0x1000)
+#define TSI721_SR_CHINTSET(x) (0x20048 + (x) * 0x1000)
#define TSI721_SR_CHINT_ODBOK 0x00000020
#define TSI721_SR_CHINT_IDBQRCV 0x00000010
#define TSI721_SR_CHINT_SUSP 0x00000008
@@ -156,7 +156,7 @@
#define TSI721_IBWIN_NUM 8
-#define TSI721_IBWINLB(x) (0x29000 + (x) * 20)
+#define TSI721_IBWINLB(x) (0x29000 + (x) * 0x20)
#define TSI721_IBWINLB_BA 0xfffff000
#define TSI721_IBWINLB_WEN 0x00000001
@@ -187,13 +187,13 @@
*/
#define TSI721_OBWIN_NUM TSI721_PC2SR_WINS
-#define TSI721_OBWINLB(x) (0x40000 + (x) * 20)
+#define TSI721_OBWINLB(x) (0x40000 + (x) * 0x20)
#define TSI721_OBWINLB_BA 0xffff8000
#define TSI721_OBWINLB_WEN 0x00000001
-#define TSI721_OBWINUB(x) (0x40004 + (x) * 20)
+#define TSI721_OBWINUB(x) (0x40004 + (x) * 0x20)
-#define TSI721_OBWINSZ(x) (0x40008 + (x) * 20)
+#define TSI721_OBWINSZ(x) (0x40008 + (x) * 0x20)
#define TSI721_OBWINSZ_SIZE 0x00001f00
#define TSI721_OBWIN_SIZE(size) (__fls(size) - 15)
diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
index ea4d8f5..09915e8 100644
--- a/drivers/regulator/da9052-regulator.c
+++ b/drivers/regulator/da9052-regulator.c
@@ -226,7 +226,7 @@
if (min_uV < info->min_uV)
min_uV = info->min_uV;
- *selector = (min_uV - info->min_uV) / info->step_uV;
+ *selector = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
ret = da9052_list_voltage(rdev, *selector);
if (ret < 0)
@@ -318,10 +318,10 @@
if ((regulator->da9052->chip_id == DA9052) &&
(min_uV >= DA9052_CONST_3uV))
*selector = DA9052_BUCK_PERI_REG_MAP_UPTO_3uV +
- ((min_uV - DA9052_CONST_3uV) /
- (DA9052_BUCK_PERI_3uV_STEP));
+ DIV_ROUND_UP(min_uV - DA9052_CONST_3uV,
+ DA9052_BUCK_PERI_3uV_STEP);
else
- *selector = (min_uV - info->min_uV) / info->step_uV;
+ *selector = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
ret = da9052_list_buckperi_voltage(rdev, *selector);
if (ret < 0)
@@ -400,6 +400,7 @@
.ops = &da9052_ldo5_6_ops,\
.type = REGULATOR_VOLTAGE,\
.id = _id,\
+ .n_voltages = (max - min) / step + 1, \
.owner = THIS_MODULE,\
},\
.min_uV = (min) * 1000,\
@@ -417,6 +418,7 @@
.ops = &da9052_ldo_ops,\
.type = REGULATOR_VOLTAGE,\
.id = _id,\
+ .n_voltages = (max - min) / step + 1, \
.owner = THIS_MODULE,\
},\
.min_uV = (min) * 1000,\
@@ -434,6 +436,7 @@
.ops = &da9052_dcdc_ops,\
.type = REGULATOR_VOLTAGE,\
.id = _id,\
+ .n_voltages = (max - min) / step + 1, \
.owner = THIS_MODULE,\
},\
.min_uV = (min) * 1000,\
@@ -451,6 +454,7 @@
.ops = &da9052_buckperi_ops,\
.type = REGULATOR_VOLTAGE,\
.id = _id,\
+ .n_voltages = (max - min) / step + 1, \
.owner = THIS_MODULE,\
},\
.min_uV = (min) * 1000,\
diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c
index 70b7b1f..2e94686 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -481,7 +481,7 @@
if (i >= info->n_voltages)
i = info->n_voltages - 1;
- *selector = info->voltages[i];
+ *selector = i;
return write_field(hw, &info->voltage, i);
}
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 4426290..501b27c 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1028,7 +1028,7 @@
return iscsit_add_reject_from_cmd(
ISCSI_REASON_BOOKMARK_NO_RESOURCES,
1, 1, buf, cmd);
- } else if (transport_ret == -EINVAL) {
+ } else if (transport_ret < 0) {
/*
* Unsupported SAM Opcode. CHECK_CONDITION will be sent
* in iscsit_execute_cmd() during the CmdSN OOO Execution
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index b7c7793..63e703b 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -117,7 +117,7 @@
struct se_node_acl *, struct se_session *);
static void core_scsi3_put_pr_reg(struct t10_pr_registration *);
-static int target_check_scsi2_reservation_conflict(struct se_cmd *cmd, int *ret)
+static int target_check_scsi2_reservation_conflict(struct se_cmd *cmd)
{
struct se_session *se_sess = cmd->se_sess;
struct se_subsystem_dev *su_dev = cmd->se_dev->se_sub_dev;
@@ -127,7 +127,7 @@
int conflict = 0;
if (!crh)
- return false;
+ return -EINVAL;
pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl,
se_sess);
@@ -155,16 +155,14 @@
*/
if (pr_reg->pr_res_holder) {
core_scsi3_put_pr_reg(pr_reg);
- *ret = 0;
- return false;
+ return 1;
}
if ((pr_reg->pr_res_type == PR_TYPE_WRITE_EXCLUSIVE_REGONLY) ||
(pr_reg->pr_res_type == PR_TYPE_EXCLUSIVE_ACCESS_REGONLY) ||
(pr_reg->pr_res_type == PR_TYPE_WRITE_EXCLUSIVE_ALLREG) ||
(pr_reg->pr_res_type == PR_TYPE_EXCLUSIVE_ACCESS_ALLREG)) {
core_scsi3_put_pr_reg(pr_reg);
- *ret = 0;
- return true;
+ return 1;
}
core_scsi3_put_pr_reg(pr_reg);
conflict = 1;
@@ -189,10 +187,10 @@
" while active SPC-3 registrations exist,"
" returning RESERVATION_CONFLICT\n");
cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
- return true;
+ return -EBUSY;
}
- return false;
+ return 0;
}
int target_scsi2_reservation_release(struct se_task *task)
@@ -201,12 +199,18 @@
struct se_device *dev = cmd->se_dev;
struct se_session *sess = cmd->se_sess;
struct se_portal_group *tpg = sess->se_tpg;
- int ret = 0;
+ int ret = 0, rc;
if (!sess || !tpg)
goto out;
- if (target_check_scsi2_reservation_conflict(cmd, &ret))
+ rc = target_check_scsi2_reservation_conflict(cmd);
+ if (rc == 1)
goto out;
+ else if (rc < 0) {
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ ret = -EINVAL;
+ goto out;
+ }
ret = 0;
spin_lock(&dev->dev_reservation_lock);
@@ -243,7 +247,7 @@
struct se_device *dev = cmd->se_dev;
struct se_session *sess = cmd->se_sess;
struct se_portal_group *tpg = sess->se_tpg;
- int ret = 0;
+ int ret = 0, rc;
if ((cmd->t_task_cdb[1] & 0x01) &&
(cmd->t_task_cdb[1] & 0x02)) {
@@ -259,8 +263,14 @@
*/
if (!sess || !tpg)
goto out;
- if (target_check_scsi2_reservation_conflict(cmd, &ret))
+ rc = target_check_scsi2_reservation_conflict(cmd);
+ if (rc == 1)
goto out;
+ else if (rc < 0) {
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ ret = -EINVAL;
+ goto out;
+ }
ret = 0;
spin_lock(&dev->dev_reservation_lock);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 58cea07..cd5cd95 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2539,6 +2539,7 @@
cmd, cdb, pr_reg_type) != 0) {
cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
cmd->se_cmd_flags |= SCF_SCSI_RESERVATION_CONFLICT;
+ cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT;
cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
return -EBUSY;
}
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index 4c0507c..eff512b 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -86,16 +86,6 @@
}
/*
- * Free tport via RCU.
- */
-static void ft_tport_rcu_free(struct rcu_head *rcu)
-{
- struct ft_tport *tport = container_of(rcu, struct ft_tport, rcu);
-
- kfree(tport);
-}
-
-/*
* Delete a target local port.
* Caller holds ft_lport_lock.
*/
@@ -114,7 +104,7 @@
tpg->tport = NULL;
tport->tpg = NULL;
}
- call_rcu(&tport->rcu, ft_tport_rcu_free);
+ kfree_rcu(tport, rcu);
}
/*
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 7508579..61b7fd2 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1710,6 +1710,8 @@
dev_dbg(port->dev, "%s(%d)\n", __func__, port->line);
+ pm_runtime_put_noidle(port->dev);
+
sci_port_enable(s);
ret = sci_request_irq(s);
@@ -1737,6 +1739,8 @@
sci_free_irq(s);
sci_port_disable(s);
+
+ pm_runtime_get_noresume(port->dev);
}
static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
@@ -2075,6 +2079,7 @@
sci_init_gpios(sci_port);
pm_runtime_irq_safe(&dev->dev);
+ pm_runtime_get_noresume(&dev->dev);
pm_runtime_enable(&dev->dev);
}
diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
index e132157..516db70 100644
--- a/drivers/video/backlight/s6e63m0.c
+++ b/drivers/video/backlight/s6e63m0.c
@@ -690,7 +690,7 @@
struct backlight_device *bd = NULL;
int brightness, rc;
- rc = strict_strtoul(buf, 0, (unsigned long *)&lcd->gamma_mode);
+ rc = kstrtouint(buf, 0, &lcd->gamma_mode);
if (rc < 0)
return rc;
diff --git a/fs/Kconfig b/fs/Kconfig
index d621f02..aa19526 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -4,6 +4,10 @@
menu "File systems"
+# Use unaligned word dcache accesses
+config DCACHE_WORD_ACCESS
+ bool
+
if BLOCK
source "fs/ext2/Kconfig"
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index d2b0888..a306bb6 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -109,7 +109,7 @@
unsigned reply_size; /* current size of reply */
unsigned first_offset; /* offset into mapping[first] */
unsigned last_to; /* amount of mapping[last] */
- unsigned short offset; /* offset into received data store */
+ unsigned offset; /* offset into received data store */
unsigned char unmarshall; /* unmarshalling phase */
bool incoming; /* T if incoming call */
bool send_pages; /* T if data from mapping should be sent */
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index e45a323..8ad8c2a 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -314,6 +314,7 @@
struct msghdr msg;
struct kvec iov[1];
int ret;
+ struct sk_buff *skb;
_enter("%x,{%d},", addr->s_addr, ntohs(call->port));
@@ -380,6 +381,8 @@
error_do_abort:
rxrpc_kernel_abort_call(rxcall, RX_USER_ABORT);
+ while ((skb = skb_dequeue(&call->rx_queue)))
+ afs_free_skb(skb);
rxrpc_kernel_end_call(rxcall);
call->rxcall = NULL;
error_kill_call:
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 0e575d1..5e9f198f 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1183,8 +1183,12 @@
* The latter is necessary to prevent ghost
* partitions on a removed medium.
*/
- if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM))
- rescan_partitions(disk, bdev);
+ if (bdev->bd_invalidated) {
+ if (!ret)
+ rescan_partitions(disk, bdev);
+ else if (ret == -ENOMEDIUM)
+ invalidate_partitions(disk, bdev);
+ }
if (ret)
goto out_clear;
} else {
@@ -1214,8 +1218,12 @@
if (bdev->bd_disk->fops->open)
ret = bdev->bd_disk->fops->open(bdev, mode);
/* the same as first opener case, read comment there */
- if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM))
- rescan_partitions(bdev->bd_disk, bdev);
+ if (bdev->bd_invalidated) {
+ if (!ret)
+ rescan_partitions(bdev->bd_disk, bdev);
+ else if (ret == -ENOMEDIUM)
+ invalidate_partitions(bdev->bd_disk, bdev);
+ }
if (ret)
goto out_unlock_bdev;
}
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 4dd9283..5e64748 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -920,16 +920,26 @@
for (lockp = &inode->i_flock; *lockp != NULL; \
lockp = &(*lockp)->fl_next)
+struct lock_to_push {
+ struct list_head llist;
+ __u64 offset;
+ __u64 length;
+ __u32 pid;
+ __u16 netfid;
+ __u8 type;
+};
+
static int
cifs_push_posix_locks(struct cifsFileInfo *cfile)
{
struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
struct file_lock *flock, **before;
- struct cifsLockInfo *lck, *tmp;
+ unsigned int count = 0, i = 0;
int rc = 0, xid, type;
+ struct list_head locks_to_send, *el;
+ struct lock_to_push *lck, *tmp;
__u64 length;
- struct list_head locks_to_send;
xid = GetXid();
@@ -940,29 +950,55 @@
return rc;
}
- INIT_LIST_HEAD(&locks_to_send);
-
lock_flocks();
cifs_for_each_lock(cfile->dentry->d_inode, before) {
+ if ((*before)->fl_flags & FL_POSIX)
+ count++;
+ }
+ unlock_flocks();
+
+ INIT_LIST_HEAD(&locks_to_send);
+
+ /*
+ * Allocating count locks is enough because no locks can be added to
+ * the list while we are holding cinode->lock_mutex that protects
+ * locking operations of this inode.
+ */
+ for (; i < count; i++) {
+ lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL);
+ if (!lck) {
+ rc = -ENOMEM;
+ goto err_out;
+ }
+ list_add_tail(&lck->llist, &locks_to_send);
+ }
+
+ i = 0;
+ el = locks_to_send.next;
+ lock_flocks();
+ cifs_for_each_lock(cfile->dentry->d_inode, before) {
+ if (el == &locks_to_send) {
+ /* something is really wrong */
+ cERROR(1, "Can't push all brlocks!");
+ break;
+ }
flock = *before;
+ if ((flock->fl_flags & FL_POSIX) == 0)
+ continue;
length = 1 + flock->fl_end - flock->fl_start;
if (flock->fl_type == F_RDLCK || flock->fl_type == F_SHLCK)
type = CIFS_RDLCK;
else
type = CIFS_WRLCK;
-
- lck = cifs_lock_init(flock->fl_start, length, type,
- cfile->netfid);
- if (!lck) {
- rc = -ENOMEM;
- goto send_locks;
- }
+ lck = list_entry(el, struct lock_to_push, llist);
lck->pid = flock->fl_pid;
-
- list_add_tail(&lck->llist, &locks_to_send);
+ lck->netfid = cfile->netfid;
+ lck->length = length;
+ lck->type = type;
+ lck->offset = flock->fl_start;
+ i++;
+ el = el->next;
}
-
-send_locks:
unlock_flocks();
list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
@@ -979,11 +1015,18 @@
kfree(lck);
}
+out:
cinode->can_cache_brlcks = false;
mutex_unlock(&cinode->lock_mutex);
FreeXid(xid);
return rc;
+err_out:
+ list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
+ list_del(&lck->llist);
+ kfree(lck);
+ }
+ goto out;
}
static int
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 45f07c4..10d92cf 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -105,7 +105,6 @@
struct cifs_tcon *pTcon;
struct super_block *sb;
char *full_path;
- struct cifs_ntsd *pacl;
if (direntry == NULL)
return -EIO;
@@ -164,23 +163,24 @@
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
} else if (strncmp(ea_name, CIFS_XATTR_CIFS_ACL,
strlen(CIFS_XATTR_CIFS_ACL)) == 0) {
+#ifdef CONFIG_CIFS_ACL
+ struct cifs_ntsd *pacl;
pacl = kmalloc(value_size, GFP_KERNEL);
if (!pacl) {
cFYI(1, "%s: Can't allocate memory for ACL",
__func__);
rc = -ENOMEM;
} else {
-#ifdef CONFIG_CIFS_ACL
memcpy(pacl, ea_value, value_size);
rc = set_cifs_acl(pacl, value_size,
direntry->d_inode, full_path, CIFS_ACL_DACL);
if (rc == 0) /* force revalidate of the inode */
CIFS_I(direntry->d_inode)->time = 0;
kfree(pacl);
+ }
#else
cFYI(1, "Set CIFS ACL not supported yet");
#endif /* CONFIG_CIFS_ACL */
- }
} else {
int temp;
temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
diff --git a/fs/dcache.c b/fs/dcache.c
index bcbdb33..11828de 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -105,10 +105,10 @@
static struct hlist_bl_head *dentry_hashtable __read_mostly;
static inline struct hlist_bl_head *d_hash(const struct dentry *parent,
- unsigned long hash)
+ unsigned int hash)
{
- hash += ((unsigned long) parent ^ GOLDEN_RATIO_PRIME) / L1_CACHE_BYTES;
- hash = hash ^ ((hash ^ GOLDEN_RATIO_PRIME) >> D_HASHBITS);
+ hash += (unsigned long) parent / L1_CACHE_BYTES;
+ hash = hash + (hash >> D_HASHBITS);
return dentry_hashtable + (hash & D_HASHMASK);
}
@@ -144,6 +144,28 @@
static inline int dentry_cmp(const unsigned char *cs, size_t scount,
const unsigned char *ct, size_t tcount)
{
+#ifdef CONFIG_DCACHE_WORD_ACCESS
+ unsigned long a,b,mask;
+
+ if (unlikely(scount != tcount))
+ return 1;
+
+ for (;;) {
+ a = *(unsigned long *)cs;
+ b = *(unsigned long *)ct;
+ if (tcount < sizeof(unsigned long))
+ break;
+ if (unlikely(a != b))
+ return 1;
+ cs += sizeof(unsigned long);
+ ct += sizeof(unsigned long);
+ tcount -= sizeof(unsigned long);
+ if (!tcount)
+ return 0;
+ }
+ mask = ~(~0ul << tcount*8);
+ return unlikely(!!((a ^ b) & mask));
+#else
if (scount != tcount)
return 1;
@@ -155,6 +177,7 @@
tcount--;
} while (tcount);
return 0;
+#endif
}
static void __d_free(struct rcu_head *head)
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index ea54cde..4d9d3a4 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -988,6 +988,10 @@
static int path_count_inc(int nests)
{
+ /* Allow an arbitrary number of depth 1 paths */
+ if (nests == 0)
+ return 0;
+
if (++path_count[nests] > path_limits[nests])
return -1;
return 0;
diff --git a/fs/inode.c b/fs/inode.c
index d3ebdbe..83ab215 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -938,8 +938,7 @@
struct file_system_type *type = inode->i_sb->s_type;
/* Set new key only if filesystem hasn't already changed it */
- if (!lockdep_match_class(&inode->i_mutex,
- &type->i_mutex_key)) {
+ if (lockdep_match_class(&inode->i_mutex, &type->i_mutex_key)) {
/*
* ensure nobody is actually holding i_mutex
*/
@@ -966,6 +965,7 @@
spin_lock(&inode->i_lock);
WARN_ON(!(inode->i_state & I_NEW));
inode->i_state &= ~I_NEW;
+ smp_mb();
wake_up_bit(&inode->i_state, __I_NEW);
spin_unlock(&inode->i_lock);
}
diff --git a/fs/namei.c b/fs/namei.c
index e2ba628..fa96a26 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1374,6 +1374,126 @@
return 1;
}
+/*
+ * We can do the critical dentry name comparison and hashing
+ * operations one word at a time, but we are limited to:
+ *
+ * - Architectures with fast unaligned word accesses. We could
+ * do a "get_unaligned()" if this helps and is sufficiently
+ * fast.
+ *
+ * - Little-endian machines (so that we can generate the mask
+ * of low bytes efficiently). Again, we *could* do a byte
+ * swapping load on big-endian architectures if that is not
+ * expensive enough to make the optimization worthless.
+ *
+ * - non-CONFIG_DEBUG_PAGEALLOC configurations (so that we
+ * do not trap on the (extremely unlikely) case of a page
+ * crossing operation.
+ *
+ * - Furthermore, we need an efficient 64-bit compile for the
+ * 64-bit case in order to generate the "number of bytes in
+ * the final mask". Again, that could be replaced with a
+ * efficient population count instruction or similar.
+ */
+#ifdef CONFIG_DCACHE_WORD_ACCESS
+
+#ifdef CONFIG_64BIT
+
+/*
+ * Jan Achrenius on G+: microoptimized version of
+ * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56"
+ * that works for the bytemasks without having to
+ * mask them first.
+ */
+static inline long count_masked_bytes(unsigned long mask)
+{
+ return mask*0x0001020304050608 >> 56;
+}
+
+static inline unsigned int fold_hash(unsigned long hash)
+{
+ hash += hash >> (8*sizeof(int));
+ return hash;
+}
+
+#else /* 32-bit case */
+
+/* Carl Chatfield / Jan Achrenius G+ version for 32-bit */
+static inline long count_masked_bytes(long mask)
+{
+ /* (000000 0000ff 00ffff ffffff) -> ( 1 1 2 3 ) */
+ long a = (0x0ff0001+mask) >> 23;
+ /* Fix the 1 for 00 case */
+ return a & mask;
+}
+
+#define fold_hash(x) (x)
+
+#endif
+
+unsigned int full_name_hash(const unsigned char *name, unsigned int len)
+{
+ unsigned long a, mask;
+ unsigned long hash = 0;
+
+ for (;;) {
+ a = *(unsigned long *)name;
+ hash *= 9;
+ if (len < sizeof(unsigned long))
+ break;
+ hash += a;
+ name += sizeof(unsigned long);
+ len -= sizeof(unsigned long);
+ if (!len)
+ goto done;
+ }
+ mask = ~(~0ul << len*8);
+ hash += mask & a;
+done:
+ return fold_hash(hash);
+}
+EXPORT_SYMBOL(full_name_hash);
+
+#define ONEBYTES 0x0101010101010101ul
+#define SLASHBYTES 0x2f2f2f2f2f2f2f2ful
+#define HIGHBITS 0x8080808080808080ul
+
+/* Return the high bit set in the first byte that is a zero */
+static inline unsigned long has_zero(unsigned long a)
+{
+ return ((a - ONEBYTES) & ~a) & HIGHBITS;
+}
+
+/*
+ * Calculate the length and hash of the path component, and
+ * return the length of the component;
+ */
+static inline unsigned long hash_name(const char *name, unsigned int *hashp)
+{
+ unsigned long a, mask, hash, len;
+
+ hash = a = 0;
+ len = -sizeof(unsigned long);
+ do {
+ hash = (hash + a) * 9;
+ len += sizeof(unsigned long);
+ a = *(unsigned long *)(name+len);
+ /* Do we have any NUL or '/' bytes in this word? */
+ mask = has_zero(a) | has_zero(a ^ SLASHBYTES);
+ } while (!mask);
+
+ /* The mask *below* the first high bit set */
+ mask = (mask - 1) & ~mask;
+ mask >>= 7;
+ hash += a & mask;
+ *hashp = fold_hash(hash);
+
+ return len + count_masked_bytes(mask);
+}
+
+#else
+
unsigned int full_name_hash(const unsigned char *name, unsigned int len)
{
unsigned long hash = init_name_hash();
@@ -1402,6 +1522,8 @@
return len;
}
+#endif
+
/*
* Name resolution.
* This is the basic name resolution function, turning a pathname into
@@ -2162,7 +2284,7 @@
/* sayonara */
error = complete_walk(nd);
if (error)
- return ERR_PTR(-ECHILD);
+ return ERR_PTR(error);
error = -ENOTDIR;
if (nd->flags & LOOKUP_DIRECTORY) {
@@ -2261,7 +2383,7 @@
/* Why this, you ask? _Now_ we might have grown LOOKUP_JUMPED... */
error = complete_walk(nd);
if (error)
- goto exit;
+ return ERR_PTR(error);
error = -EISDIR;
if (S_ISDIR(nd->inode->i_mode))
goto exit;
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index d327140..501b7f8 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -409,6 +409,12 @@
nilfs->ns_first_data_block = le64_to_cpu(sbp->s_first_data_block);
nilfs->ns_r_segments_percentage =
le32_to_cpu(sbp->s_r_segments_percentage);
+ if (nilfs->ns_r_segments_percentage < 1 ||
+ nilfs->ns_r_segments_percentage > 99) {
+ printk(KERN_ERR "NILFS: invalid reserved segments percentage.\n");
+ return -EINVAL;
+ }
+
nilfs_set_nsegments(nilfs, le64_to_cpu(sbp->s_nsegments));
nilfs->ns_crc_seed = le32_to_cpu(sbp->s_crc_seed);
return 0;
@@ -515,6 +521,7 @@
brelse(sbh[1]);
sbh[1] = NULL;
sbp[1] = NULL;
+ valid[1] = 0;
swp = 0;
}
if (!valid[swp]) {
diff --git a/fs/udf/file.c b/fs/udf/file.c
index dca0c38..d567b84 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -201,12 +201,10 @@
static int udf_release_file(struct inode *inode, struct file *filp)
{
if (filp->f_mode & FMODE_WRITE) {
- mutex_lock(&inode->i_mutex);
down_write(&UDF_I(inode)->i_data_sem);
udf_discard_prealloc(inode);
udf_truncate_tail_extent(inode);
up_write(&UDF_I(inode)->i_data_sem);
- mutex_unlock(&inode->i_mutex);
}
return 0;
}
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index fe23ee7..e61d319 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -596,6 +596,7 @@
extern int disk_expand_part_tbl(struct gendisk *disk, int target);
extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
+extern int invalidate_partitions(struct gendisk *disk, struct block_device *bdev);
extern struct hd_struct * __must_check add_partition(struct gendisk *disk,
int partno, sector_t start,
sector_t len, int flags,
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index 119773e..1a30180 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -6,8 +6,11 @@
#include <linux/workqueue.h>
enum {
- ICQ_IOPRIO_CHANGED,
- ICQ_CGROUP_CHANGED,
+ ICQ_IOPRIO_CHANGED = 1 << 0,
+ ICQ_CGROUP_CHANGED = 1 << 1,
+ ICQ_EXITED = 1 << 2,
+
+ ICQ_CHANGED_MASK = ICQ_IOPRIO_CHANGED | ICQ_CGROUP_CHANGED,
};
/*
@@ -88,7 +91,7 @@
struct rcu_head __rcu_head;
};
- unsigned long changed;
+ unsigned int flags;
};
/*
@@ -139,6 +142,7 @@
gfp_t gfp_flags, int node);
void ioc_ioprio_changed(struct io_context *ioc, int ioprio);
void ioc_cgroup_changed(struct io_context *ioc);
+unsigned int icq_get_changed(struct io_cq *icq);
#else
struct io_context;
static inline void put_io_context(struct io_context *ioc) { }
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 81c04f4..9372174 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -190,6 +190,33 @@
extern void rcu_irq_enter(void);
extern void rcu_irq_exit(void);
+/**
+ * RCU_NONIDLE - Indicate idle-loop code that needs RCU readers
+ * @a: Code that RCU needs to pay attention to.
+ *
+ * RCU, RCU-bh, and RCU-sched read-side critical sections are forbidden
+ * in the inner idle loop, that is, between the rcu_idle_enter() and
+ * the rcu_idle_exit() -- RCU will happily ignore any such read-side
+ * critical sections. However, things like powertop need tracepoints
+ * in the inner idle loop.
+ *
+ * This macro provides the way out: RCU_NONIDLE(do_something_with_RCU())
+ * will tell RCU that it needs to pay attending, invoke its argument
+ * (in this example, a call to the do_something_with_RCU() function),
+ * and then tell RCU to go back to ignoring this CPU. It is permissible
+ * to nest RCU_NONIDLE() wrappers, but the nesting level is currently
+ * quite limited. If deeper nesting is required, it will be necessary
+ * to adjust DYNTICK_TASK_NESTING_VALUE accordingly.
+ *
+ * This macro may be used from process-level code only.
+ */
+#define RCU_NONIDLE(a) \
+ do { \
+ rcu_idle_exit(); \
+ do { a; } while (0); \
+ rcu_idle_enter(); \
+ } while (0)
+
/*
* Infrastructure to implement the synchronize_() primitives in
* TREE_RCU and rcu_barrier_() primitives in TINY_RCU.
@@ -226,6 +253,15 @@
}
#endif /* #else !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
+#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU)
+bool rcu_lockdep_current_cpu_online(void);
+#else /* #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU) */
+static inline bool rcu_lockdep_current_cpu_online(void)
+{
+ return 1;
+}
+#endif /* #else #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU) */
+
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#ifdef CONFIG_PROVE_RCU
@@ -239,13 +275,11 @@
static inline void rcu_lock_acquire(struct lockdep_map *map)
{
- WARN_ON_ONCE(rcu_is_cpu_idle());
lock_acquire(map, 0, 0, 2, 1, NULL, _THIS_IP_);
}
static inline void rcu_lock_release(struct lockdep_map *map)
{
- WARN_ON_ONCE(rcu_is_cpu_idle());
lock_release(map, 1, _THIS_IP_);
}
@@ -270,6 +304,9 @@
* occur in the same context, for example, it is illegal to invoke
* rcu_read_unlock() in process context if the matching rcu_read_lock()
* was invoked from within an irq handler.
+ *
+ * Note that rcu_read_lock() is disallowed if the CPU is either idle or
+ * offline from an RCU perspective, so check for those as well.
*/
static inline int rcu_read_lock_held(void)
{
@@ -277,6 +314,8 @@
return 1;
if (rcu_is_cpu_idle())
return 0;
+ if (!rcu_lockdep_current_cpu_online())
+ return 0;
return lock_is_held(&rcu_lock_map);
}
@@ -313,6 +352,9 @@
* notice an extended quiescent state to other CPUs that started a grace
* period. Otherwise we would delay any grace period as long as we run in
* the idle task.
+ *
+ * Similarly, we avoid claiming an SRCU read lock held if the current
+ * CPU is offline.
*/
#ifdef CONFIG_PREEMPT_COUNT
static inline int rcu_read_lock_sched_held(void)
@@ -323,6 +365,8 @@
return 1;
if (rcu_is_cpu_idle())
return 0;
+ if (!rcu_lockdep_current_cpu_online())
+ return 0;
if (debug_locks)
lockdep_opinion = lock_is_held(&rcu_sched_lock_map);
return lockdep_opinion || preempt_count() != 0 || irqs_disabled();
@@ -381,8 +425,22 @@
} \
} while (0)
+#if defined(CONFIG_PROVE_RCU) && !defined(CONFIG_PREEMPT_RCU)
+static inline void rcu_preempt_sleep_check(void)
+{
+ rcu_lockdep_assert(!lock_is_held(&rcu_lock_map),
+ "Illegal context switch in RCU read-side "
+ "critical section");
+}
+#else /* #ifdef CONFIG_PROVE_RCU */
+static inline void rcu_preempt_sleep_check(void)
+{
+}
+#endif /* #else #ifdef CONFIG_PROVE_RCU */
+
#define rcu_sleep_check() \
do { \
+ rcu_preempt_sleep_check(); \
rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map), \
"Illegal context switch in RCU-bh" \
" read-side critical section"); \
@@ -470,6 +528,13 @@
* NULL. Although rcu_access_pointer() may also be used in cases where
* update-side locks prevent the value of the pointer from changing, you
* should instead use rcu_dereference_protected() for this use case.
+ *
+ * It is also permissible to use rcu_access_pointer() when read-side
+ * access to the pointer was removed at least one grace period ago, as
+ * is the case in the context of the RCU callback that is freeing up
+ * the data, or after a synchronize_rcu() returns. This can be useful
+ * when tearing down multi-linked structures after a grace period
+ * has elapsed.
*/
#define rcu_access_pointer(p) __rcu_access_pointer((p), __rcu)
@@ -659,6 +724,8 @@
__rcu_read_lock();
__acquire(RCU);
rcu_lock_acquire(&rcu_lock_map);
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "rcu_read_lock() used illegally while idle");
}
/*
@@ -678,6 +745,8 @@
*/
static inline void rcu_read_unlock(void)
{
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "rcu_read_unlock() used illegally while idle");
rcu_lock_release(&rcu_lock_map);
__release(RCU);
__rcu_read_unlock();
@@ -705,6 +774,8 @@
local_bh_disable();
__acquire(RCU_BH);
rcu_lock_acquire(&rcu_bh_lock_map);
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "rcu_read_lock_bh() used illegally while idle");
}
/*
@@ -714,6 +785,8 @@
*/
static inline void rcu_read_unlock_bh(void)
{
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "rcu_read_unlock_bh() used illegally while idle");
rcu_lock_release(&rcu_bh_lock_map);
__release(RCU_BH);
local_bh_enable();
@@ -737,6 +810,8 @@
preempt_disable();
__acquire(RCU_SCHED);
rcu_lock_acquire(&rcu_sched_lock_map);
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "rcu_read_lock_sched() used illegally while idle");
}
/* Used by lockdep and tracing: cannot be traced, cannot call lockdep. */
@@ -753,6 +828,8 @@
*/
static inline void rcu_read_unlock_sched(void)
{
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "rcu_read_unlock_sched() used illegally while idle");
rcu_lock_release(&rcu_sched_lock_map);
__release(RCU_SCHED);
preempt_enable();
@@ -841,7 +918,7 @@
/* See the kfree_rcu() header comment. */
BUILD_BUG_ON(!__is_kfree_rcu_offset(offset));
- call_rcu(head, (rcu_callback)offset);
+ kfree_call_rcu(head, (rcu_callback)offset);
}
/**
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 00b7a5e..e93df77 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -27,13 +27,9 @@
#include <linux/cache.h>
-#ifdef CONFIG_RCU_BOOST
static inline void rcu_init(void)
{
}
-#else /* #ifdef CONFIG_RCU_BOOST */
-void rcu_init(void);
-#endif /* #else #ifdef CONFIG_RCU_BOOST */
static inline void rcu_barrier_bh(void)
{
@@ -83,6 +79,12 @@
synchronize_sched();
}
+static inline void kfree_call_rcu(struct rcu_head *head,
+ void (*func)(struct rcu_head *rcu))
+{
+ call_rcu(head, func);
+}
+
#ifdef CONFIG_TINY_RCU
static inline void rcu_preempt_note_context_switch(void)
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 6745846..e8ee5dd 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -61,6 +61,24 @@
extern void synchronize_sched_expedited(void);
extern void synchronize_rcu_expedited(void);
+void kfree_call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
+
+/**
+ * synchronize_rcu_bh_expedited - Brute-force RCU-bh grace period
+ *
+ * Wait for an RCU-bh grace period to elapse, but use a "big hammer"
+ * approach to force the grace period to end quickly. This consumes
+ * significant time on all CPUs and is unfriendly to real-time workloads,
+ * so is thus not recommended for any sort of common-case code. In fact,
+ * if you are using synchronize_rcu_bh_expedited() in a loop, please
+ * restructure your code to batch your updates, and then use a single
+ * synchronize_rcu_bh() instead.
+ *
+ * Note that it is illegal to call this function while holding any lock
+ * that is acquired by a CPU-hotplug notifier. And yes, it is also illegal
+ * to call this function from a CPU-hotplug notifier. Failing to observe
+ * these restriction will result in deadlock.
+ */
static inline void synchronize_rcu_bh_expedited(void)
{
synchronize_sched_expedited();
@@ -83,6 +101,7 @@
/* A context switch is a grace period for RCU-sched and RCU-bh. */
static inline int rcu_blocking_is_gp(void)
{
+ might_sleep(); /* Check for RCU read-side critical section. */
return num_online_cpus() == 1;
}
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 0657368..e345163 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1319,6 +1319,11 @@
unsigned sched_reset_on_fork:1;
unsigned sched_contributes_to_load:1;
+#ifdef CONFIG_GENERIC_HARDIRQS
+ /* IRQ handler threads */
+ unsigned irq_thread:1;
+#endif
+
pid_t pid;
pid_t tgid;
@@ -1427,11 +1432,6 @@
* mempolicy */
spinlock_t alloc_lock;
-#ifdef CONFIG_GENERIC_HARDIRQS
- /* IRQ handler threads */
- struct irqaction *irqaction;
-#endif
-
/* Protection of the PI data structures: */
raw_spinlock_t pi_lock;
@@ -1863,8 +1863,7 @@
#ifdef CONFIG_PREEMPT_RCU
#define RCU_READ_UNLOCK_BLOCKED (1 << 0) /* blocked while in RCU read-side. */
-#define RCU_READ_UNLOCK_BOOSTED (1 << 1) /* boosted while in RCU read-side. */
-#define RCU_READ_UNLOCK_NEED_QS (1 << 2) /* RCU core needs CPU response. */
+#define RCU_READ_UNLOCK_NEED_QS (1 << 1) /* RCU core needs CPU response. */
static inline void rcu_copy_process(struct task_struct *p)
{
diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index e1b0059..d3d5fa5 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -99,15 +99,18 @@
* power mode. This way we can notice an extended quiescent state to
* other CPUs that started a grace period. Otherwise we would delay any
* grace period as long as we run in the idle task.
+ *
+ * Similarly, we avoid claiming an SRCU read lock held if the current
+ * CPU is offline.
*/
static inline int srcu_read_lock_held(struct srcu_struct *sp)
{
- if (rcu_is_cpu_idle())
- return 0;
-
if (!debug_lockdep_rcu_enabled())
return 1;
-
+ if (rcu_is_cpu_idle())
+ return 0;
+ if (!rcu_lockdep_current_cpu_online())
+ return 0;
return lock_is_held(&sp->dep_map);
}
@@ -169,6 +172,8 @@
int retval = __srcu_read_lock(sp);
rcu_lock_acquire(&(sp)->dep_map);
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "srcu_read_lock() used illegally while idle");
return retval;
}
@@ -182,6 +187,8 @@
static inline void srcu_read_unlock(struct srcu_struct *sp, int idx)
__releases(sp)
{
+ rcu_lockdep_assert(!rcu_is_cpu_idle(),
+ "srcu_read_unlock() used illegally while idle");
rcu_lock_release(&(sp)->dep_map);
__srcu_read_unlock(sp, idx);
}
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index eb8b9f1..af15545 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -289,12 +289,16 @@
*
* system_freezable_wq is equivalent to system_wq except that it's
* freezable.
+ *
+ * system_nrt_freezable_wq is equivalent to system_nrt_wq except that
+ * it's freezable.
*/
extern struct workqueue_struct *system_wq;
extern struct workqueue_struct *system_long_wq;
extern struct workqueue_struct *system_nrt_wq;
extern struct workqueue_struct *system_unbound_wq;
extern struct workqueue_struct *system_freezable_wq;
+extern struct workqueue_struct *system_nrt_freezable_wq;
extern struct workqueue_struct *
__alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index d2d88be..3370997 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -313,19 +313,22 @@
/*
* Tracepoint for the registration of a single RCU callback function.
* The first argument is the type of RCU, the second argument is
- * a pointer to the RCU callback itself, and the third element is the
- * new RCU callback queue length for the current CPU.
+ * a pointer to the RCU callback itself, the third element is the
+ * number of lazy callbacks queued, and the fourth element is the
+ * total number of callbacks queued.
*/
TRACE_EVENT(rcu_callback,
- TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen),
+ TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen_lazy,
+ long qlen),
- TP_ARGS(rcuname, rhp, qlen),
+ TP_ARGS(rcuname, rhp, qlen_lazy, qlen),
TP_STRUCT__entry(
__field(char *, rcuname)
__field(void *, rhp)
__field(void *, func)
+ __field(long, qlen_lazy)
__field(long, qlen)
),
@@ -333,11 +336,13 @@
__entry->rcuname = rcuname;
__entry->rhp = rhp;
__entry->func = rhp->func;
+ __entry->qlen_lazy = qlen_lazy;
__entry->qlen = qlen;
),
- TP_printk("%s rhp=%p func=%pf %ld",
- __entry->rcuname, __entry->rhp, __entry->func, __entry->qlen)
+ TP_printk("%s rhp=%p func=%pf %ld/%ld",
+ __entry->rcuname, __entry->rhp, __entry->func,
+ __entry->qlen_lazy, __entry->qlen)
);
/*
@@ -345,20 +350,21 @@
* kfree() form. The first argument is the RCU type, the second argument
* is a pointer to the RCU callback, the third argument is the offset
* of the callback within the enclosing RCU-protected data structure,
- * and the fourth argument is the new RCU callback queue length for the
- * current CPU.
+ * the fourth argument is the number of lazy callbacks queued, and the
+ * fifth argument is the total number of callbacks queued.
*/
TRACE_EVENT(rcu_kfree_callback,
TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset,
- long qlen),
+ long qlen_lazy, long qlen),
- TP_ARGS(rcuname, rhp, offset, qlen),
+ TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen),
TP_STRUCT__entry(
__field(char *, rcuname)
__field(void *, rhp)
__field(unsigned long, offset)
+ __field(long, qlen_lazy)
__field(long, qlen)
),
@@ -366,41 +372,45 @@
__entry->rcuname = rcuname;
__entry->rhp = rhp;
__entry->offset = offset;
+ __entry->qlen_lazy = qlen_lazy;
__entry->qlen = qlen;
),
- TP_printk("%s rhp=%p func=%ld %ld",
+ TP_printk("%s rhp=%p func=%ld %ld/%ld",
__entry->rcuname, __entry->rhp, __entry->offset,
- __entry->qlen)
+ __entry->qlen_lazy, __entry->qlen)
);
/*
* Tracepoint for marking the beginning rcu_do_batch, performed to start
* RCU callback invocation. The first argument is the RCU flavor,
- * the second is the total number of callbacks (including those that
- * are not yet ready to be invoked), and the third argument is the
- * current RCU-callback batch limit.
+ * the second is the number of lazy callbacks queued, the third is
+ * the total number of callbacks queued, and the fourth argument is
+ * the current RCU-callback batch limit.
*/
TRACE_EVENT(rcu_batch_start,
- TP_PROTO(char *rcuname, long qlen, int blimit),
+ TP_PROTO(char *rcuname, long qlen_lazy, long qlen, int blimit),
- TP_ARGS(rcuname, qlen, blimit),
+ TP_ARGS(rcuname, qlen_lazy, qlen, blimit),
TP_STRUCT__entry(
__field(char *, rcuname)
+ __field(long, qlen_lazy)
__field(long, qlen)
__field(int, blimit)
),
TP_fast_assign(
__entry->rcuname = rcuname;
+ __entry->qlen_lazy = qlen_lazy;
__entry->qlen = qlen;
__entry->blimit = blimit;
),
- TP_printk("%s CBs=%ld bl=%d",
- __entry->rcuname, __entry->qlen, __entry->blimit)
+ TP_printk("%s CBs=%ld/%ld bl=%d",
+ __entry->rcuname, __entry->qlen_lazy, __entry->qlen,
+ __entry->blimit)
);
/*
@@ -531,16 +541,21 @@
#else /* #ifdef CONFIG_RCU_TRACE */
#define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0)
-#define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, qsmask) do { } while (0)
+#define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, \
+ qsmask) do { } while (0)
#define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0)
#define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0)
-#define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks) do { } while (0)
+#define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \
+ grplo, grphi, gp_tasks) do { } \
+ while (0)
#define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0)
#define trace_rcu_dyntick(polarity, oldnesting, newnesting) do { } while (0)
#define trace_rcu_prep_idle(reason) do { } while (0)
-#define trace_rcu_callback(rcuname, rhp, qlen) do { } while (0)
-#define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen) do { } while (0)
-#define trace_rcu_batch_start(rcuname, qlen, blimit) do { } while (0)
+#define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0)
+#define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \
+ do { } while (0)
+#define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \
+ do { } while (0)
#define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0)
#define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0)
#define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \
diff --git a/init/Kconfig b/init/Kconfig
index 3f42cd6..72f33fa 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -438,15 +438,6 @@
This option enables preemptible-RCU code that is common between
the TREE_PREEMPT_RCU and TINY_PREEMPT_RCU implementations.
-config RCU_TRACE
- bool "Enable tracing for RCU"
- help
- This option provides tracing in RCU which presents stats
- in debugfs for debugging RCU implementation.
-
- Say Y here if you want to enable RCU tracing
- Say N if you are unsure.
-
config RCU_FANOUT
int "Tree-based hierarchical RCU fanout value"
range 2 64 if 64BIT
diff --git a/kernel/exit.c b/kernel/exit.c
index 4b4042f..752d2c0 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -935,8 +935,6 @@
schedule();
}
- exit_irq_thread();
-
exit_signals(tsk); /* sets PF_EXITING */
/*
* tsk->flags are checked in the futex code to protect against
@@ -945,6 +943,8 @@
smp_mb();
raw_spin_unlock_wait(&tsk->pi_lock);
+ exit_irq_thread();
+
if (unlikely(in_atomic()))
printk(KERN_INFO "note: %s[%d] exited with preempt_count %d\n",
current->comm, task_pid_nr(current),
diff --git a/kernel/futex.c b/kernel/futex.c
index 1614be2..72efa1e 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2628,7 +2628,7 @@
long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout,
u32 __user *uaddr2, u32 val2, u32 val3)
{
- int ret = -ENOSYS, cmd = op & FUTEX_CMD_MASK;
+ int cmd = op & FUTEX_CMD_MASK;
unsigned int flags = 0;
if (!(op & FUTEX_PRIVATE_FLAG))
@@ -2641,49 +2641,44 @@
}
switch (cmd) {
+ case FUTEX_LOCK_PI:
+ case FUTEX_UNLOCK_PI:
+ case FUTEX_TRYLOCK_PI:
+ case FUTEX_WAIT_REQUEUE_PI:
+ case FUTEX_CMP_REQUEUE_PI:
+ if (!futex_cmpxchg_enabled)
+ return -ENOSYS;
+ }
+
+ switch (cmd) {
case FUTEX_WAIT:
val3 = FUTEX_BITSET_MATCH_ANY;
case FUTEX_WAIT_BITSET:
- ret = futex_wait(uaddr, flags, val, timeout, val3);
- break;
+ return futex_wait(uaddr, flags, val, timeout, val3);
case FUTEX_WAKE:
val3 = FUTEX_BITSET_MATCH_ANY;
case FUTEX_WAKE_BITSET:
- ret = futex_wake(uaddr, flags, val, val3);
- break;
+ return futex_wake(uaddr, flags, val, val3);
case FUTEX_REQUEUE:
- ret = futex_requeue(uaddr, flags, uaddr2, val, val2, NULL, 0);
- break;
+ return futex_requeue(uaddr, flags, uaddr2, val, val2, NULL, 0);
case FUTEX_CMP_REQUEUE:
- ret = futex_requeue(uaddr, flags, uaddr2, val, val2, &val3, 0);
- break;
+ return futex_requeue(uaddr, flags, uaddr2, val, val2, &val3, 0);
case FUTEX_WAKE_OP:
- ret = futex_wake_op(uaddr, flags, uaddr2, val, val2, val3);
- break;
+ return futex_wake_op(uaddr, flags, uaddr2, val, val2, val3);
case FUTEX_LOCK_PI:
- if (futex_cmpxchg_enabled)
- ret = futex_lock_pi(uaddr, flags, val, timeout, 0);
- break;
+ return futex_lock_pi(uaddr, flags, val, timeout, 0);
case FUTEX_UNLOCK_PI:
- if (futex_cmpxchg_enabled)
- ret = futex_unlock_pi(uaddr, flags);
- break;
+ return futex_unlock_pi(uaddr, flags);
case FUTEX_TRYLOCK_PI:
- if (futex_cmpxchg_enabled)
- ret = futex_lock_pi(uaddr, flags, 0, timeout, 1);
- break;
+ return futex_lock_pi(uaddr, flags, 0, timeout, 1);
case FUTEX_WAIT_REQUEUE_PI:
val3 = FUTEX_BITSET_MATCH_ANY;
- ret = futex_wait_requeue_pi(uaddr, flags, val, timeout, val3,
- uaddr2);
- break;
+ return futex_wait_requeue_pi(uaddr, flags, val, timeout, val3,
+ uaddr2);
case FUTEX_CMP_REQUEUE_PI:
- ret = futex_requeue(uaddr, flags, uaddr2, val, val2, &val3, 1);
- break;
- default:
- ret = -ENOSYS;
+ return futex_requeue(uaddr, flags, uaddr2, val, val2, &val3, 1);
}
- return ret;
+ return -ENOSYS;
}
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 838687e..6080f6b 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -63,8 +63,7 @@
return -EINVAL;
type &= IRQ_TYPE_SENSE_MASK;
- if (type != IRQ_TYPE_NONE)
- ret = __irq_set_trigger(desc, irq, type);
+ ret = __irq_set_trigger(desc, irq, type);
irq_put_desc_busunlock(desc, flags);
return ret;
}
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 470d08c..6ff84e6 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -60,7 +60,7 @@
* device interrupt, so no irq storm is lurking. If the
* RUNTHREAD bit is already set, nothing to do.
*/
- if (test_bit(IRQTF_DIED, &action->thread_flags) ||
+ if ((action->thread->flags & PF_EXITING) ||
test_and_set_bit(IRQTF_RUNTHREAD, &action->thread_flags))
return;
@@ -110,6 +110,18 @@
* threads_oneshot untouched and runs the thread another time.
*/
desc->threads_oneshot |= action->thread_mask;
+
+ /*
+ * We increment the threads_active counter in case we wake up
+ * the irq thread. The irq thread decrements the counter when
+ * it returns from the handler or in the exit path and wakes
+ * up waiters which are stuck in synchronize_irq() when the
+ * active count becomes zero. synchronize_irq() is serialized
+ * against this code (hard irq handler) via IRQS_INPROGRESS
+ * like the finalize_oneshot() code. See comment above.
+ */
+ atomic_inc(&desc->threads_active);
+
wake_up_process(action->thread);
}
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 40378ff..8e5c56b 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -20,14 +20,12 @@
/*
* Bits used by threaded handlers:
* IRQTF_RUNTHREAD - signals that the interrupt handler thread should run
- * IRQTF_DIED - handler thread died
* IRQTF_WARNED - warning "IRQ_WAKE_THREAD w/o thread_fn" has been printed
* IRQTF_AFFINITY - irq thread is requested to adjust affinity
* IRQTF_FORCED_THREAD - irq action is force threaded
*/
enum {
IRQTF_RUNTHREAD,
- IRQTF_DIED,
IRQTF_WARNED,
IRQTF_AFFINITY,
IRQTF_FORCED_THREAD,
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 0f0d470..b0ccd1a 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -759,6 +759,13 @@
return ret;
}
+static void wake_threads_waitq(struct irq_desc *desc)
+{
+ if (atomic_dec_and_test(&desc->threads_active) &&
+ waitqueue_active(&desc->wait_for_threads))
+ wake_up(&desc->wait_for_threads);
+}
+
/*
* Interrupt handler thread
*/
@@ -771,57 +778,41 @@
struct irq_desc *desc = irq_to_desc(action->irq);
irqreturn_t (*handler_fn)(struct irq_desc *desc,
struct irqaction *action);
- int wake;
- if (force_irqthreads & test_bit(IRQTF_FORCED_THREAD,
+ if (force_irqthreads && test_bit(IRQTF_FORCED_THREAD,
&action->thread_flags))
handler_fn = irq_forced_thread_fn;
else
handler_fn = irq_thread_fn;
sched_setscheduler(current, SCHED_FIFO, ¶m);
- current->irqaction = action;
+ current->irq_thread = 1;
while (!irq_wait_for_interrupt(action)) {
+ irqreturn_t action_ret;
irq_thread_check_affinity(desc, action);
- atomic_inc(&desc->threads_active);
+ action_ret = handler_fn(desc, action);
+ if (!noirqdebug)
+ note_interrupt(action->irq, desc, action_ret);
- raw_spin_lock_irq(&desc->lock);
- if (unlikely(irqd_irq_disabled(&desc->irq_data))) {
- /*
- * CHECKME: We might need a dedicated
- * IRQ_THREAD_PENDING flag here, which
- * retriggers the thread in check_irq_resend()
- * but AFAICT IRQS_PENDING should be fine as it
- * retriggers the interrupt itself --- tglx
- */
- desc->istate |= IRQS_PENDING;
- raw_spin_unlock_irq(&desc->lock);
- } else {
- irqreturn_t action_ret;
-
- raw_spin_unlock_irq(&desc->lock);
- action_ret = handler_fn(desc, action);
- if (!noirqdebug)
- note_interrupt(action->irq, desc, action_ret);
- }
-
- wake = atomic_dec_and_test(&desc->threads_active);
-
- if (wake && waitqueue_active(&desc->wait_for_threads))
- wake_up(&desc->wait_for_threads);
+ wake_threads_waitq(desc);
}
- /* Prevent a stale desc->threads_oneshot */
- irq_finalize_oneshot(desc, action, true);
-
/*
- * Clear irqaction. Otherwise exit_irq_thread() would make
+ * This is the regular exit path. __free_irq() is stopping the
+ * thread via kthread_stop() after calling
+ * synchronize_irq(). So neither IRQTF_RUNTHREAD nor the
+ * oneshot mask bit can be set. We cannot verify that as we
+ * cannot touch the oneshot mask at this point anymore as
+ * __setup_irq() might have given out currents thread_mask
+ * again.
+ *
+ * Clear irq_thread. Otherwise exit_irq_thread() would make
* fuzz about an active irq thread going into nirvana.
*/
- current->irqaction = NULL;
+ current->irq_thread = 0;
return 0;
}
@@ -832,27 +823,28 @@
{
struct task_struct *tsk = current;
struct irq_desc *desc;
+ struct irqaction *action;
- if (!tsk->irqaction)
+ if (!tsk->irq_thread)
return;
+ action = kthread_data(tsk);
+
printk(KERN_ERR
"exiting task \"%s\" (%d) is an active IRQ thread (irq %d)\n",
- tsk->comm ? tsk->comm : "", tsk->pid, tsk->irqaction->irq);
+ tsk->comm ? tsk->comm : "", tsk->pid, action->irq);
- desc = irq_to_desc(tsk->irqaction->irq);
+ desc = irq_to_desc(action->irq);
/*
- * Prevent a stale desc->threads_oneshot. Must be called
- * before setting the IRQTF_DIED flag.
+ * If IRQTF_RUNTHREAD is set, we need to decrement
+ * desc->threads_active and wake possible waiters.
*/
- irq_finalize_oneshot(desc, tsk->irqaction, true);
+ if (test_and_clear_bit(IRQTF_RUNTHREAD, &action->thread_flags))
+ wake_threads_waitq(desc);
- /*
- * Set the THREAD DIED flag to prevent further wakeups of the
- * soon to be gone threaded handler.
- */
- set_bit(IRQTF_DIED, &tsk->irqaction->flags);
+ /* Prevent a stale desc->threads_oneshot */
+ irq_finalize_oneshot(desc, action, true);
}
static void irq_setup_forced_threading(struct irqaction *new)
@@ -1135,8 +1127,7 @@
struct task_struct *t = new->thread;
new->thread = NULL;
- if (likely(!test_bit(IRQTF_DIED, &new->thread_flags)))
- kthread_stop(t);
+ kthread_stop(t);
put_task_struct(t);
}
out_mput:
@@ -1246,8 +1237,7 @@
#endif
if (action->thread) {
- if (!test_bit(IRQTF_DIED, &action->thread_flags))
- kthread_stop(action->thread);
+ kthread_stop(action->thread);
put_task_struct(action->thread);
}
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 8889f7d..ea9ee45 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -4176,7 +4176,13 @@
printk("-------------------------------\n");
printk("%s:%d %s!\n", file, line, s);
printk("\nother info that might help us debug this:\n\n");
- printk("\nrcu_scheduler_active = %d, debug_locks = %d\n", rcu_scheduler_active, debug_locks);
+ printk("\n%srcu_scheduler_active = %d, debug_locks = %d\n",
+ !rcu_lockdep_current_cpu_online()
+ ? "RCU used illegally from offline CPU!\n"
+ : rcu_is_cpu_idle()
+ ? "RCU used illegally from idle CPU!\n"
+ : "",
+ rcu_scheduler_active, debug_locks);
/*
* If a CPU is in the RCU-free window in idle (ie: in the section
diff --git a/kernel/rcu.h b/kernel/rcu.h
index aa88baa..8ba99cd 100644
--- a/kernel/rcu.h
+++ b/kernel/rcu.h
@@ -33,8 +33,27 @@
* Process-level increment to ->dynticks_nesting field. This allows for
* architectures that use half-interrupts and half-exceptions from
* process context.
+ *
+ * DYNTICK_TASK_NEST_MASK defines a field of width DYNTICK_TASK_NEST_WIDTH
+ * that counts the number of process-based reasons why RCU cannot
+ * consider the corresponding CPU to be idle, and DYNTICK_TASK_NEST_VALUE
+ * is the value used to increment or decrement this field.
+ *
+ * The rest of the bits could in principle be used to count interrupts,
+ * but this would mean that a negative-one value in the interrupt
+ * field could incorrectly zero out the DYNTICK_TASK_NEST_MASK field.
+ * We therefore provide a two-bit guard field defined by DYNTICK_TASK_MASK
+ * that is set to DYNTICK_TASK_FLAG upon initial exit from idle.
+ * The DYNTICK_TASK_EXIT_IDLE value is thus the combined value used upon
+ * initial exit from idle.
*/
-#define DYNTICK_TASK_NESTING (LLONG_MAX / 2 - 1)
+#define DYNTICK_TASK_NEST_WIDTH 7
+#define DYNTICK_TASK_NEST_VALUE ((LLONG_MAX >> DYNTICK_TASK_NEST_WIDTH) + 1)
+#define DYNTICK_TASK_NEST_MASK (LLONG_MAX - DYNTICK_TASK_NEST_VALUE + 1)
+#define DYNTICK_TASK_FLAG ((DYNTICK_TASK_NEST_VALUE / 8) * 2)
+#define DYNTICK_TASK_MASK ((DYNTICK_TASK_NEST_VALUE / 8) * 3)
+#define DYNTICK_TASK_EXIT_IDLE (DYNTICK_TASK_NEST_VALUE + \
+ DYNTICK_TASK_FLAG)
/*
* debug_rcu_head_queue()/debug_rcu_head_unqueue() are used internally
@@ -50,7 +69,6 @@
static inline void debug_rcu_head_queue(struct rcu_head *head)
{
- WARN_ON_ONCE((unsigned long)head & 0x3);
debug_object_activate(head, &rcuhead_debug_descr);
debug_object_active_state(head, &rcuhead_debug_descr,
STATE_RCU_HEAD_READY,
@@ -76,16 +94,18 @@
extern void kfree(const void *);
-static inline void __rcu_reclaim(char *rn, struct rcu_head *head)
+static inline bool __rcu_reclaim(char *rn, struct rcu_head *head)
{
unsigned long offset = (unsigned long)head->func;
if (__is_kfree_rcu_offset(offset)) {
RCU_TRACE(trace_rcu_invoke_kfree_callback(rn, head, offset));
kfree((void *)head - offset);
+ return 1;
} else {
RCU_TRACE(trace_rcu_invoke_callback(rn, head));
head->func(head);
+ return 0;
}
}
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 2bc4e13..a86f174 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -88,6 +88,9 @@
* section.
*
* Check debug_lockdep_rcu_enabled() to prevent false positives during boot.
+ *
+ * Note that rcu_read_lock() is disallowed if the CPU is either idle or
+ * offline from an RCU perspective, so check for those as well.
*/
int rcu_read_lock_bh_held(void)
{
@@ -95,6 +98,8 @@
return 1;
if (rcu_is_cpu_idle())
return 0;
+ if (!rcu_lockdep_current_cpu_online())
+ return 0;
return in_softirq() || irqs_disabled();
}
EXPORT_SYMBOL_GPL(rcu_read_lock_bh_held);
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index 977296d..37a5444 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -53,7 +53,7 @@
#include "rcutiny_plugin.h"
-static long long rcu_dynticks_nesting = DYNTICK_TASK_NESTING;
+static long long rcu_dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
/* Common code for rcu_idle_enter() and rcu_irq_exit(), see kernel/rcutree.c. */
static void rcu_idle_enter_common(long long oldval)
@@ -88,10 +88,16 @@
local_irq_save(flags);
oldval = rcu_dynticks_nesting;
- rcu_dynticks_nesting = 0;
+ WARN_ON_ONCE((rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK) == 0);
+ if ((rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK) ==
+ DYNTICK_TASK_NEST_VALUE)
+ rcu_dynticks_nesting = 0;
+ else
+ rcu_dynticks_nesting -= DYNTICK_TASK_NEST_VALUE;
rcu_idle_enter_common(oldval);
local_irq_restore(flags);
}
+EXPORT_SYMBOL_GPL(rcu_idle_enter);
/*
* Exit an interrupt handler towards idle.
@@ -140,11 +146,15 @@
local_irq_save(flags);
oldval = rcu_dynticks_nesting;
- WARN_ON_ONCE(oldval != 0);
- rcu_dynticks_nesting = DYNTICK_TASK_NESTING;
+ WARN_ON_ONCE(rcu_dynticks_nesting < 0);
+ if (rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK)
+ rcu_dynticks_nesting += DYNTICK_TASK_NEST_VALUE;
+ else
+ rcu_dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
rcu_idle_exit_common(oldval);
local_irq_restore(flags);
}
+EXPORT_SYMBOL_GPL(rcu_idle_exit);
/*
* Enter an interrupt handler, moving away from idle.
@@ -258,7 +268,7 @@
/* If no RCU callbacks ready to invoke, just return. */
if (&rcp->rcucblist == rcp->donetail) {
- RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, -1));
+ RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, 0, -1));
RCU_TRACE(trace_rcu_batch_end(rcp->name, 0,
ACCESS_ONCE(rcp->rcucblist),
need_resched(),
@@ -269,7 +279,7 @@
/* Move the ready-to-invoke callbacks to a local list. */
local_irq_save(flags);
- RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, -1));
+ RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, rcp->qlen, -1));
list = rcp->rcucblist;
rcp->rcucblist = *rcp->donetail;
*rcp->donetail = NULL;
@@ -319,6 +329,10 @@
*/
void synchronize_sched(void)
{
+ rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+ !lock_is_held(&rcu_lock_map) &&
+ !lock_is_held(&rcu_sched_lock_map),
+ "Illegal synchronize_sched() in RCU read-side critical section");
cond_resched();
}
EXPORT_SYMBOL_GPL(synchronize_sched);
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index 9cb1ae4..22ecea0 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -132,6 +132,7 @@
RCU_TRACE(.rcb.name = "rcu_preempt")
};
+static void rcu_read_unlock_special(struct task_struct *t);
static int rcu_preempted_readers_exp(void);
static void rcu_report_exp_done(void);
@@ -146,6 +147,16 @@
/*
* Check for a running RCU reader. Because there is only one CPU,
* there can be but one running RCU reader at a time. ;-)
+ *
+ * Returns zero if there are no running readers. Returns a positive
+ * number if there is at least one reader within its RCU read-side
+ * critical section. Returns a negative number if an outermost reader
+ * is in the midst of exiting from its RCU read-side critical section
+ *
+ * Returns zero if there are no running readers. Returns a positive
+ * number if there is at least one reader within its RCU read-side
+ * critical section. Returns a negative number if an outermost reader
+ * is in the midst of exiting from its RCU read-side critical section.
*/
static int rcu_preempt_running_reader(void)
{
@@ -307,7 +318,6 @@
t = container_of(tb, struct task_struct, rcu_node_entry);
rt_mutex_init_proxy_locked(&mtx, t);
t->rcu_boost_mutex = &mtx;
- t->rcu_read_unlock_special |= RCU_READ_UNLOCK_BOOSTED;
raw_local_irq_restore(flags);
rt_mutex_lock(&mtx);
rt_mutex_unlock(&mtx); /* Keep lockdep happy. */
@@ -475,7 +485,7 @@
unsigned long flags;
local_irq_save(flags); /* must exclude scheduler_tick(). */
- if (rcu_preempt_running_reader() &&
+ if (rcu_preempt_running_reader() > 0 &&
(t->rcu_read_unlock_special & RCU_READ_UNLOCK_BLOCKED) == 0) {
/* Possibly blocking in an RCU read-side critical section. */
@@ -494,6 +504,13 @@
list_add(&t->rcu_node_entry, &rcu_preempt_ctrlblk.blkd_tasks);
if (rcu_cpu_blocking_cur_gp())
rcu_preempt_ctrlblk.gp_tasks = &t->rcu_node_entry;
+ } else if (rcu_preempt_running_reader() < 0 &&
+ t->rcu_read_unlock_special) {
+ /*
+ * Complete exit from RCU read-side critical section on
+ * behalf of preempted instance of __rcu_read_unlock().
+ */
+ rcu_read_unlock_special(t);
}
/*
@@ -526,12 +543,15 @@
* notify RCU core processing or task having blocked during the RCU
* read-side critical section.
*/
-static void rcu_read_unlock_special(struct task_struct *t)
+static noinline void rcu_read_unlock_special(struct task_struct *t)
{
int empty;
int empty_exp;
unsigned long flags;
struct list_head *np;
+#ifdef CONFIG_RCU_BOOST
+ struct rt_mutex *rbmp = NULL;
+#endif /* #ifdef CONFIG_RCU_BOOST */
int special;
/*
@@ -552,7 +572,7 @@
rcu_preempt_cpu_qs();
/* Hardware IRQ handlers cannot block. */
- if (in_irq()) {
+ if (in_irq() || in_serving_softirq()) {
local_irq_restore(flags);
return;
}
@@ -597,10 +617,10 @@
}
#ifdef CONFIG_RCU_BOOST
/* Unboost self if was boosted. */
- if (special & RCU_READ_UNLOCK_BOOSTED) {
- t->rcu_read_unlock_special &= ~RCU_READ_UNLOCK_BOOSTED;
- rt_mutex_unlock(t->rcu_boost_mutex);
+ if (t->rcu_boost_mutex != NULL) {
+ rbmp = t->rcu_boost_mutex;
t->rcu_boost_mutex = NULL;
+ rt_mutex_unlock(rbmp);
}
#endif /* #ifdef CONFIG_RCU_BOOST */
local_irq_restore(flags);
@@ -618,13 +638,22 @@
struct task_struct *t = current;
barrier(); /* needed if we ever invoke rcu_read_unlock in rcutiny.c */
- --t->rcu_read_lock_nesting;
- barrier(); /* decrement before load of ->rcu_read_unlock_special */
- if (t->rcu_read_lock_nesting == 0 &&
- unlikely(ACCESS_ONCE(t->rcu_read_unlock_special)))
- rcu_read_unlock_special(t);
+ if (t->rcu_read_lock_nesting != 1)
+ --t->rcu_read_lock_nesting;
+ else {
+ t->rcu_read_lock_nesting = INT_MIN;
+ barrier(); /* assign before ->rcu_read_unlock_special load */
+ if (unlikely(ACCESS_ONCE(t->rcu_read_unlock_special)))
+ rcu_read_unlock_special(t);
+ barrier(); /* ->rcu_read_unlock_special load before assign */
+ t->rcu_read_lock_nesting = 0;
+ }
#ifdef CONFIG_PROVE_LOCKING
- WARN_ON_ONCE(t->rcu_read_lock_nesting < 0);
+ {
+ int rrln = ACCESS_ONCE(t->rcu_read_lock_nesting);
+
+ WARN_ON_ONCE(rrln < 0 && rrln > INT_MIN / 2);
+ }
#endif /* #ifdef CONFIG_PROVE_LOCKING */
}
EXPORT_SYMBOL_GPL(__rcu_read_unlock);
@@ -649,7 +678,7 @@
invoke_rcu_callbacks();
if (rcu_preempt_gp_in_progress() &&
rcu_cpu_blocking_cur_gp() &&
- rcu_preempt_running_reader())
+ rcu_preempt_running_reader() > 0)
t->rcu_read_unlock_special |= RCU_READ_UNLOCK_NEED_QS;
}
@@ -706,6 +735,11 @@
*/
void synchronize_rcu(void)
{
+ rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+ !lock_is_held(&rcu_lock_map) &&
+ !lock_is_held(&rcu_sched_lock_map),
+ "Illegal synchronize_rcu() in RCU read-side critical section");
+
#ifdef CONFIG_DEBUG_LOCK_ALLOC
if (!rcu_scheduler_active)
return;
@@ -882,7 +916,8 @@
static void invoke_rcu_callbacks(void)
{
have_rcu_kthread_work = 1;
- wake_up(&rcu_kthread_wq);
+ if (rcu_kthread_task != NULL)
+ wake_up(&rcu_kthread_wq);
}
#ifdef CONFIG_RCU_TRACE
@@ -943,12 +978,16 @@
#else /* #ifdef CONFIG_RCU_BOOST */
+/* Hold off callback invocation until early_initcall() time. */
+static int rcu_scheduler_fully_active __read_mostly;
+
/*
* Start up softirq processing of callbacks.
*/
void invoke_rcu_callbacks(void)
{
- raise_softirq(RCU_SOFTIRQ);
+ if (rcu_scheduler_fully_active)
+ raise_softirq(RCU_SOFTIRQ);
}
#ifdef CONFIG_RCU_TRACE
@@ -963,10 +1002,14 @@
#endif /* #ifdef CONFIG_RCU_TRACE */
-void rcu_init(void)
+static int __init rcu_scheduler_really_started(void)
{
+ rcu_scheduler_fully_active = 1;
open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
+ raise_softirq(RCU_SOFTIRQ); /* Invoke any callbacks from early boot. */
+ return 0;
}
+early_initcall(rcu_scheduler_really_started);
#endif /* #else #ifdef CONFIG_RCU_BOOST */
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index a58ac28..a89b381 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -65,7 +65,10 @@
static int fqs_holdoff; /* Hold time within burst (us). */
static int fqs_stutter = 3; /* Wait time between bursts (s). */
static int onoff_interval; /* Wait time between CPU hotplugs, 0=disable. */
+static int onoff_holdoff; /* Seconds after boot before CPU hotplugs. */
static int shutdown_secs; /* Shutdown time (s). <=0 for no shutdown. */
+static int stall_cpu; /* CPU-stall duration (s). 0 for no stall. */
+static int stall_cpu_holdoff = 10; /* Time to wait until stall (s). */
static int test_boost = 1; /* Test RCU prio boost: 0=no, 1=maybe, 2=yes. */
static int test_boost_interval = 7; /* Interval between boost tests, seconds. */
static int test_boost_duration = 4; /* Duration of each boost test, seconds. */
@@ -95,8 +98,14 @@
MODULE_PARM_DESC(fqs_stutter, "Wait time between fqs bursts (s)");
module_param(onoff_interval, int, 0444);
MODULE_PARM_DESC(onoff_interval, "Time between CPU hotplugs (s), 0=disable");
+module_param(onoff_holdoff, int, 0444);
+MODULE_PARM_DESC(onoff_holdoff, "Time after boot before CPU hotplugs (s)");
module_param(shutdown_secs, int, 0444);
MODULE_PARM_DESC(shutdown_secs, "Shutdown time (s), zero to disable.");
+module_param(stall_cpu, int, 0444);
+MODULE_PARM_DESC(stall_cpu, "Stall duration (s), zero to disable.");
+module_param(stall_cpu_holdoff, int, 0444);
+MODULE_PARM_DESC(stall_cpu_holdoff, "Time to wait before starting stall (s).");
module_param(test_boost, int, 0444);
MODULE_PARM_DESC(test_boost, "Test RCU prio boost: 0=no, 1=maybe, 2=yes.");
module_param(test_boost_interval, int, 0444);
@@ -129,6 +138,7 @@
#ifdef CONFIG_HOTPLUG_CPU
static struct task_struct *onoff_task;
#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+static struct task_struct *stall_task;
#define RCU_TORTURE_PIPE_LEN 10
@@ -990,12 +1000,12 @@
rcu_read_lock_bh_held() ||
rcu_read_lock_sched_held() ||
srcu_read_lock_held(&srcu_ctl));
- do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu);
if (p == NULL) {
/* Leave because rcu_torture_writer is not yet underway */
cur_ops->readunlock(idx);
return;
}
+ do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu);
if (p->rtort_mbtest == 0)
atomic_inc(&n_rcu_torture_mberror);
spin_lock(&rand_lock);
@@ -1053,13 +1063,13 @@
rcu_read_lock_bh_held() ||
rcu_read_lock_sched_held() ||
srcu_read_lock_held(&srcu_ctl));
- do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu);
if (p == NULL) {
/* Wait for rcu_torture_writer to get underway */
cur_ops->readunlock(idx);
schedule_timeout_interruptible(HZ);
continue;
}
+ do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu);
if (p->rtort_mbtest == 0)
atomic_inc(&n_rcu_torture_mberror);
cur_ops->read_delay(&rand);
@@ -1300,13 +1310,13 @@
"fqs_duration=%d fqs_holdoff=%d fqs_stutter=%d "
"test_boost=%d/%d test_boost_interval=%d "
"test_boost_duration=%d shutdown_secs=%d "
- "onoff_interval=%d\n",
+ "onoff_interval=%d onoff_holdoff=%d\n",
torture_type, tag, nrealreaders, nfakewriters,
stat_interval, verbose, test_no_idle_hz, shuffle_interval,
stutter, irqreader, fqs_duration, fqs_holdoff, fqs_stutter,
test_boost, cur_ops->can_boost,
test_boost_interval, test_boost_duration, shutdown_secs,
- onoff_interval);
+ onoff_interval, onoff_holdoff);
}
static struct notifier_block rcutorture_shutdown_nb = {
@@ -1410,6 +1420,11 @@
for_each_online_cpu(cpu)
maxcpu = cpu;
WARN_ON(maxcpu < 0);
+ if (onoff_holdoff > 0) {
+ VERBOSE_PRINTK_STRING("rcu_torture_onoff begin holdoff");
+ schedule_timeout_interruptible(onoff_holdoff * HZ);
+ VERBOSE_PRINTK_STRING("rcu_torture_onoff end holdoff");
+ }
while (!kthread_should_stop()) {
cpu = (rcu_random(&rand) >> 4) % (maxcpu + 1);
if (cpu_online(cpu) && cpu_is_hotpluggable(cpu)) {
@@ -1450,12 +1465,15 @@
static int __cpuinit
rcu_torture_onoff_init(void)
{
+ int ret;
+
if (onoff_interval <= 0)
return 0;
onoff_task = kthread_run(rcu_torture_onoff, NULL, "rcu_torture_onoff");
if (IS_ERR(onoff_task)) {
+ ret = PTR_ERR(onoff_task);
onoff_task = NULL;
- return PTR_ERR(onoff_task);
+ return ret;
}
return 0;
}
@@ -1481,6 +1499,63 @@
#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */
+/*
+ * CPU-stall kthread. It waits as specified by stall_cpu_holdoff, then
+ * induces a CPU stall for the time specified by stall_cpu.
+ */
+static int __cpuinit rcu_torture_stall(void *args)
+{
+ unsigned long stop_at;
+
+ VERBOSE_PRINTK_STRING("rcu_torture_stall task started");
+ if (stall_cpu_holdoff > 0) {
+ VERBOSE_PRINTK_STRING("rcu_torture_stall begin holdoff");
+ schedule_timeout_interruptible(stall_cpu_holdoff * HZ);
+ VERBOSE_PRINTK_STRING("rcu_torture_stall end holdoff");
+ }
+ if (!kthread_should_stop()) {
+ stop_at = get_seconds() + stall_cpu;
+ /* RCU CPU stall is expected behavior in following code. */
+ printk(KERN_ALERT "rcu_torture_stall start.\n");
+ rcu_read_lock();
+ preempt_disable();
+ while (ULONG_CMP_LT(get_seconds(), stop_at))
+ continue; /* Induce RCU CPU stall warning. */
+ preempt_enable();
+ rcu_read_unlock();
+ printk(KERN_ALERT "rcu_torture_stall end.\n");
+ }
+ rcutorture_shutdown_absorb("rcu_torture_stall");
+ while (!kthread_should_stop())
+ schedule_timeout_interruptible(10 * HZ);
+ return 0;
+}
+
+/* Spawn CPU-stall kthread, if stall_cpu specified. */
+static int __init rcu_torture_stall_init(void)
+{
+ int ret;
+
+ if (stall_cpu <= 0)
+ return 0;
+ stall_task = kthread_run(rcu_torture_stall, NULL, "rcu_torture_stall");
+ if (IS_ERR(stall_task)) {
+ ret = PTR_ERR(stall_task);
+ stall_task = NULL;
+ return ret;
+ }
+ return 0;
+}
+
+/* Clean up after the CPU-stall kthread, if one was spawned. */
+static void rcu_torture_stall_cleanup(void)
+{
+ if (stall_task == NULL)
+ return;
+ VERBOSE_PRINTK_STRING("Stopping rcu_torture_stall_task.");
+ kthread_stop(stall_task);
+}
+
static int rcutorture_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
@@ -1523,6 +1598,7 @@
fullstop = FULLSTOP_RMMOD;
mutex_unlock(&fullstop_mutex);
unregister_reboot_notifier(&rcutorture_shutdown_nb);
+ rcu_torture_stall_cleanup();
if (stutter_task) {
VERBOSE_PRINTK_STRING("Stopping rcu_torture_stutter task");
kthread_stop(stutter_task);
@@ -1602,6 +1678,10 @@
cur_ops->cleanup();
if (atomic_read(&n_rcu_torture_error))
rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
+ else if (n_online_successes != n_online_attempts ||
+ n_offline_successes != n_offline_attempts)
+ rcu_torture_print_module_parms(cur_ops,
+ "End of test: RCU_HOTPLUG");
else
rcu_torture_print_module_parms(cur_ops, "End of test: SUCCESS");
}
@@ -1819,6 +1899,7 @@
}
rcu_torture_onoff_init();
register_reboot_notifier(&rcutorture_shutdown_nb);
+ rcu_torture_stall_init();
rcutorture_record_test_transition();
mutex_unlock(&fullstop_mutex);
return 0;
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 6c4a672..1050d6d 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -50,6 +50,8 @@
#include <linux/wait.h>
#include <linux/kthread.h>
#include <linux/prefetch.h>
+#include <linux/delay.h>
+#include <linux/stop_machine.h>
#include "rcutree.h"
#include <trace/events/rcu.h>
@@ -196,7 +198,7 @@
EXPORT_SYMBOL_GPL(rcu_note_context_switch);
DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
- .dynticks_nesting = DYNTICK_TASK_NESTING,
+ .dynticks_nesting = DYNTICK_TASK_EXIT_IDLE,
.dynticks = ATOMIC_INIT(1),
};
@@ -208,8 +210,11 @@
module_param(qhimark, int, 0);
module_param(qlowmark, int, 0);
-int rcu_cpu_stall_suppress __read_mostly;
+int rcu_cpu_stall_suppress __read_mostly; /* 1 = suppress stall warnings. */
+int rcu_cpu_stall_timeout __read_mostly = CONFIG_RCU_CPU_STALL_TIMEOUT;
+
module_param(rcu_cpu_stall_suppress, int, 0644);
+module_param(rcu_cpu_stall_timeout, int, 0644);
static void force_quiescent_state(struct rcu_state *rsp, int relaxed);
static int rcu_pending(int cpu);
@@ -301,8 +306,6 @@
return &rsp->node[0];
}
-#ifdef CONFIG_SMP
-
/*
* If the specified CPU is offline, tell the caller that it is in
* a quiescent state. Otherwise, whack it with a reschedule IPI.
@@ -317,30 +320,21 @@
static int rcu_implicit_offline_qs(struct rcu_data *rdp)
{
/*
- * If the CPU is offline, it is in a quiescent state. We can
- * trust its state not to change because interrupts are disabled.
+ * If the CPU is offline for more than a jiffy, it is in a quiescent
+ * state. We can trust its state not to change because interrupts
+ * are disabled. The reason for the jiffy's worth of slack is to
+ * handle CPUs initializing on the way up and finding their way
+ * to the idle loop on the way down.
*/
- if (cpu_is_offline(rdp->cpu)) {
+ if (cpu_is_offline(rdp->cpu) &&
+ ULONG_CMP_LT(rdp->rsp->gp_start + 2, jiffies)) {
trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, "ofl");
rdp->offline_fqs++;
return 1;
}
-
- /*
- * The CPU is online, so send it a reschedule IPI. This forces
- * it through the scheduler, and (inefficiently) also handles cases
- * where idle loops fail to inform RCU about the CPU being idle.
- */
- if (rdp->cpu != smp_processor_id())
- smp_send_reschedule(rdp->cpu);
- else
- set_need_resched();
- rdp->resched_ipi++;
return 0;
}
-#endif /* #ifdef CONFIG_SMP */
-
/*
* rcu_idle_enter_common - inform RCU that current CPU is moving towards idle
*
@@ -366,6 +360,17 @@
atomic_inc(&rdtp->dynticks);
smp_mb__after_atomic_inc(); /* Force ordering with next sojourn. */
WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
+
+ /*
+ * The idle task is not permitted to enter the idle loop while
+ * in an RCU read-side critical section.
+ */
+ rcu_lockdep_assert(!lock_is_held(&rcu_lock_map),
+ "Illegal idle entry in RCU read-side critical section.");
+ rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map),
+ "Illegal idle entry in RCU-bh read-side critical section.");
+ rcu_lockdep_assert(!lock_is_held(&rcu_sched_lock_map),
+ "Illegal idle entry in RCU-sched read-side critical section.");
}
/**
@@ -389,10 +394,15 @@
local_irq_save(flags);
rdtp = &__get_cpu_var(rcu_dynticks);
oldval = rdtp->dynticks_nesting;
- rdtp->dynticks_nesting = 0;
+ WARN_ON_ONCE((oldval & DYNTICK_TASK_NEST_MASK) == 0);
+ if ((oldval & DYNTICK_TASK_NEST_MASK) == DYNTICK_TASK_NEST_VALUE)
+ rdtp->dynticks_nesting = 0;
+ else
+ rdtp->dynticks_nesting -= DYNTICK_TASK_NEST_VALUE;
rcu_idle_enter_common(rdtp, oldval);
local_irq_restore(flags);
}
+EXPORT_SYMBOL_GPL(rcu_idle_enter);
/**
* rcu_irq_exit - inform RCU that current CPU is exiting irq towards idle
@@ -462,7 +472,7 @@
* Exit idle mode, in other words, -enter- the mode in which RCU
* read-side critical sections can occur.
*
- * We crowbar the ->dynticks_nesting field to DYNTICK_TASK_NESTING to
+ * We crowbar the ->dynticks_nesting field to DYNTICK_TASK_NEST to
* allow for the possibility of usermode upcalls messing up our count
* of interrupt nesting level during the busy period that is just
* now starting.
@@ -476,11 +486,15 @@
local_irq_save(flags);
rdtp = &__get_cpu_var(rcu_dynticks);
oldval = rdtp->dynticks_nesting;
- WARN_ON_ONCE(oldval != 0);
- rdtp->dynticks_nesting = DYNTICK_TASK_NESTING;
+ WARN_ON_ONCE(oldval < 0);
+ if (oldval & DYNTICK_TASK_NEST_MASK)
+ rdtp->dynticks_nesting += DYNTICK_TASK_NEST_VALUE;
+ else
+ rdtp->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
rcu_idle_exit_common(rdtp, oldval);
local_irq_restore(flags);
}
+EXPORT_SYMBOL_GPL(rcu_idle_exit);
/**
* rcu_irq_enter - inform RCU that current CPU is entering irq away from idle
@@ -581,6 +595,49 @@
}
EXPORT_SYMBOL(rcu_is_cpu_idle);
+#ifdef CONFIG_HOTPLUG_CPU
+
+/*
+ * Is the current CPU online? Disable preemption to avoid false positives
+ * that could otherwise happen due to the current CPU number being sampled,
+ * this task being preempted, its old CPU being taken offline, resuming
+ * on some other CPU, then determining that its old CPU is now offline.
+ * It is OK to use RCU on an offline processor during initial boot, hence
+ * the check for rcu_scheduler_fully_active. Note also that it is OK
+ * for a CPU coming online to use RCU for one jiffy prior to marking itself
+ * online in the cpu_online_mask. Similarly, it is OK for a CPU going
+ * offline to continue to use RCU for one jiffy after marking itself
+ * offline in the cpu_online_mask. This leniency is necessary given the
+ * non-atomic nature of the online and offline processing, for example,
+ * the fact that a CPU enters the scheduler after completing the CPU_DYING
+ * notifiers.
+ *
+ * This is also why RCU internally marks CPUs online during the
+ * CPU_UP_PREPARE phase and offline during the CPU_DEAD phase.
+ *
+ * Disable checking if in an NMI handler because we cannot safely report
+ * errors from NMI handlers anyway.
+ */
+bool rcu_lockdep_current_cpu_online(void)
+{
+ struct rcu_data *rdp;
+ struct rcu_node *rnp;
+ bool ret;
+
+ if (in_nmi())
+ return 1;
+ preempt_disable();
+ rdp = &__get_cpu_var(rcu_sched_data);
+ rnp = rdp->mynode;
+ ret = (rdp->grpmask & rnp->qsmaskinit) ||
+ !rcu_scheduler_fully_active;
+ preempt_enable();
+ return ret;
+}
+EXPORT_SYMBOL_GPL(rcu_lockdep_current_cpu_online);
+
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
#endif /* #ifdef CONFIG_PROVE_RCU */
/**
@@ -595,8 +652,6 @@
return __get_cpu_var(rcu_dynticks).dynticks_nesting <= 1;
}
-#ifdef CONFIG_SMP
-
/*
* Snapshot the specified CPU's dynticks counter so that we can later
* credit them with an implicit quiescent state. Return 1 if this CPU
@@ -640,12 +695,28 @@
return rcu_implicit_offline_qs(rdp);
}
-#endif /* #ifdef CONFIG_SMP */
+static int jiffies_till_stall_check(void)
+{
+ int till_stall_check = ACCESS_ONCE(rcu_cpu_stall_timeout);
+
+ /*
+ * Limit check must be consistent with the Kconfig limits
+ * for CONFIG_RCU_CPU_STALL_TIMEOUT.
+ */
+ if (till_stall_check < 3) {
+ ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
+ till_stall_check = 3;
+ } else if (till_stall_check > 300) {
+ ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
+ till_stall_check = 300;
+ }
+ return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
+}
static void record_gp_stall_check_time(struct rcu_state *rsp)
{
rsp->gp_start = jiffies;
- rsp->jiffies_stall = jiffies + RCU_SECONDS_TILL_STALL_CHECK;
+ rsp->jiffies_stall = jiffies + jiffies_till_stall_check();
}
static void print_other_cpu_stall(struct rcu_state *rsp)
@@ -664,13 +735,7 @@
raw_spin_unlock_irqrestore(&rnp->lock, flags);
return;
}
- rsp->jiffies_stall = jiffies + RCU_SECONDS_TILL_STALL_RECHECK;
-
- /*
- * Now rat on any tasks that got kicked up to the root rcu_node
- * due to CPU offlining.
- */
- ndetected = rcu_print_task_stall(rnp);
+ rsp->jiffies_stall = jiffies + 3 * jiffies_till_stall_check() + 3;
raw_spin_unlock_irqrestore(&rnp->lock, flags);
/*
@@ -678,8 +743,9 @@
* See Documentation/RCU/stallwarn.txt for info on how to debug
* RCU CPU stall warnings.
*/
- printk(KERN_ERR "INFO: %s detected stalls on CPUs/tasks: {",
+ printk(KERN_ERR "INFO: %s detected stalls on CPUs/tasks:",
rsp->name);
+ print_cpu_stall_info_begin();
rcu_for_each_leaf_node(rsp, rnp) {
raw_spin_lock_irqsave(&rnp->lock, flags);
ndetected += rcu_print_task_stall(rnp);
@@ -688,11 +754,22 @@
continue;
for (cpu = 0; cpu <= rnp->grphi - rnp->grplo; cpu++)
if (rnp->qsmask & (1UL << cpu)) {
- printk(" %d", rnp->grplo + cpu);
+ print_cpu_stall_info(rsp, rnp->grplo + cpu);
ndetected++;
}
}
- printk("} (detected by %d, t=%ld jiffies)\n",
+
+ /*
+ * Now rat on any tasks that got kicked up to the root rcu_node
+ * due to CPU offlining.
+ */
+ rnp = rcu_get_root(rsp);
+ raw_spin_lock_irqsave(&rnp->lock, flags);
+ ndetected = rcu_print_task_stall(rnp);
+ raw_spin_unlock_irqrestore(&rnp->lock, flags);
+
+ print_cpu_stall_info_end();
+ printk(KERN_CONT "(detected by %d, t=%ld jiffies)\n",
smp_processor_id(), (long)(jiffies - rsp->gp_start));
if (ndetected == 0)
printk(KERN_ERR "INFO: Stall ended before state dump start\n");
@@ -716,15 +793,18 @@
* See Documentation/RCU/stallwarn.txt for info on how to debug
* RCU CPU stall warnings.
*/
- printk(KERN_ERR "INFO: %s detected stall on CPU %d (t=%lu jiffies)\n",
- rsp->name, smp_processor_id(), jiffies - rsp->gp_start);
+ printk(KERN_ERR "INFO: %s self-detected stall on CPU", rsp->name);
+ print_cpu_stall_info_begin();
+ print_cpu_stall_info(rsp, smp_processor_id());
+ print_cpu_stall_info_end();
+ printk(KERN_CONT " (t=%lu jiffies)\n", jiffies - rsp->gp_start);
if (!trigger_all_cpu_backtrace())
dump_stack();
raw_spin_lock_irqsave(&rnp->lock, flags);
if (ULONG_CMP_GE(jiffies, rsp->jiffies_stall))
- rsp->jiffies_stall =
- jiffies + RCU_SECONDS_TILL_STALL_RECHECK;
+ rsp->jiffies_stall = jiffies +
+ 3 * jiffies_till_stall_check() + 3;
raw_spin_unlock_irqrestore(&rnp->lock, flags);
set_need_resched(); /* kick ourselves to get things going. */
@@ -807,6 +887,7 @@
rdp->passed_quiesce = 0;
} else
rdp->qs_pending = 0;
+ zero_cpu_stall_ticks(rdp);
}
}
@@ -943,6 +1024,10 @@
* in preparation for detecting the next grace period. The caller must hold
* the root node's ->lock, which is released before return. Hard irqs must
* be disabled.
+ *
+ * Note that it is legal for a dying CPU (which is marked as offline) to
+ * invoke this function. This can happen when the dying CPU reports its
+ * quiescent state.
*/
static void
rcu_start_gp(struct rcu_state *rsp, unsigned long flags)
@@ -980,26 +1065,8 @@
rsp->fqs_state = RCU_GP_INIT; /* Hold off force_quiescent_state. */
rsp->jiffies_force_qs = jiffies + RCU_JIFFIES_TILL_FORCE_QS;
record_gp_stall_check_time(rsp);
-
- /* Special-case the common single-level case. */
- if (NUM_RCU_NODES == 1) {
- rcu_preempt_check_blocked_tasks(rnp);
- rnp->qsmask = rnp->qsmaskinit;
- rnp->gpnum = rsp->gpnum;
- rnp->completed = rsp->completed;
- rsp->fqs_state = RCU_SIGNAL_INIT; /* force_quiescent_state OK */
- rcu_start_gp_per_cpu(rsp, rnp, rdp);
- rcu_preempt_boost_start_gp(rnp);
- trace_rcu_grace_period_init(rsp->name, rnp->gpnum,
- rnp->level, rnp->grplo,
- rnp->grphi, rnp->qsmask);
- raw_spin_unlock_irqrestore(&rnp->lock, flags);
- return;
- }
-
raw_spin_unlock(&rnp->lock); /* leave irqs disabled. */
-
/* Exclude any concurrent CPU-hotplug operations. */
raw_spin_lock(&rsp->onofflock); /* irqs already disabled. */
@@ -1245,53 +1312,115 @@
/*
* Move a dying CPU's RCU callbacks to online CPU's callback list.
- * Synchronization is not required because this function executes
- * in stop_machine() context.
+ * Also record a quiescent state for this CPU for the current grace period.
+ * Synchronization and interrupt disabling are not required because
+ * this function executes in stop_machine() context. Therefore, cleanup
+ * operations that might block must be done later from the CPU_DEAD
+ * notifier.
+ *
+ * Note that the outgoing CPU's bit has already been cleared in the
+ * cpu_online_mask. This allows us to randomly pick a callback
+ * destination from the bits set in that mask.
*/
-static void rcu_send_cbs_to_online(struct rcu_state *rsp)
+static void rcu_cleanup_dying_cpu(struct rcu_state *rsp)
{
int i;
- /* current DYING CPU is cleared in the cpu_online_mask */
+ unsigned long mask;
int receive_cpu = cpumask_any(cpu_online_mask);
struct rcu_data *rdp = this_cpu_ptr(rsp->rda);
struct rcu_data *receive_rdp = per_cpu_ptr(rsp->rda, receive_cpu);
+ RCU_TRACE(struct rcu_node *rnp = rdp->mynode); /* For dying CPU. */
- if (rdp->nxtlist == NULL)
- return; /* irqs disabled, so comparison is stable. */
+ /* First, adjust the counts. */
+ if (rdp->nxtlist != NULL) {
+ receive_rdp->qlen_lazy += rdp->qlen_lazy;
+ receive_rdp->qlen += rdp->qlen;
+ rdp->qlen_lazy = 0;
+ rdp->qlen = 0;
+ }
- *receive_rdp->nxttail[RCU_NEXT_TAIL] = rdp->nxtlist;
- receive_rdp->nxttail[RCU_NEXT_TAIL] = rdp->nxttail[RCU_NEXT_TAIL];
- receive_rdp->qlen += rdp->qlen;
- receive_rdp->n_cbs_adopted += rdp->qlen;
- rdp->n_cbs_orphaned += rdp->qlen;
+ /*
+ * Next, move ready-to-invoke callbacks to be invoked on some
+ * other CPU. These will not be required to pass through another
+ * grace period: They are done, regardless of CPU.
+ */
+ if (rdp->nxtlist != NULL &&
+ rdp->nxttail[RCU_DONE_TAIL] != &rdp->nxtlist) {
+ struct rcu_head *oldhead;
+ struct rcu_head **oldtail;
+ struct rcu_head **newtail;
- rdp->nxtlist = NULL;
- for (i = 0; i < RCU_NEXT_SIZE; i++)
- rdp->nxttail[i] = &rdp->nxtlist;
- rdp->qlen = 0;
+ oldhead = rdp->nxtlist;
+ oldtail = receive_rdp->nxttail[RCU_DONE_TAIL];
+ rdp->nxtlist = *rdp->nxttail[RCU_DONE_TAIL];
+ *rdp->nxttail[RCU_DONE_TAIL] = *oldtail;
+ *receive_rdp->nxttail[RCU_DONE_TAIL] = oldhead;
+ newtail = rdp->nxttail[RCU_DONE_TAIL];
+ for (i = RCU_DONE_TAIL; i < RCU_NEXT_SIZE; i++) {
+ if (receive_rdp->nxttail[i] == oldtail)
+ receive_rdp->nxttail[i] = newtail;
+ if (rdp->nxttail[i] == newtail)
+ rdp->nxttail[i] = &rdp->nxtlist;
+ }
+ }
+
+ /*
+ * Finally, put the rest of the callbacks at the end of the list.
+ * The ones that made it partway through get to start over: We
+ * cannot assume that grace periods are synchronized across CPUs.
+ * (We could splice RCU_WAIT_TAIL into RCU_NEXT_READY_TAIL, but
+ * this does not seem compelling. Not yet, anyway.)
+ */
+ if (rdp->nxtlist != NULL) {
+ *receive_rdp->nxttail[RCU_NEXT_TAIL] = rdp->nxtlist;
+ receive_rdp->nxttail[RCU_NEXT_TAIL] =
+ rdp->nxttail[RCU_NEXT_TAIL];
+ receive_rdp->n_cbs_adopted += rdp->qlen;
+ rdp->n_cbs_orphaned += rdp->qlen;
+
+ rdp->nxtlist = NULL;
+ for (i = 0; i < RCU_NEXT_SIZE; i++)
+ rdp->nxttail[i] = &rdp->nxtlist;
+ }
+
+ /*
+ * Record a quiescent state for the dying CPU. This is safe
+ * only because we have already cleared out the callbacks.
+ * (Otherwise, the RCU core might try to schedule the invocation
+ * of callbacks on this now-offline CPU, which would be bad.)
+ */
+ mask = rdp->grpmask; /* rnp->grplo is constant. */
+ trace_rcu_grace_period(rsp->name,
+ rnp->gpnum + 1 - !!(rnp->qsmask & mask),
+ "cpuofl");
+ rcu_report_qs_rdp(smp_processor_id(), rsp, rdp, rsp->gpnum);
+ /* Note that rcu_report_qs_rdp() might call trace_rcu_grace_period(). */
}
/*
- * Remove the outgoing CPU from the bitmasks in the rcu_node hierarchy
- * and move all callbacks from the outgoing CPU to the current one.
+ * The CPU has been completely removed, and some other CPU is reporting
+ * this fact from process context. Do the remainder of the cleanup.
* There can only be one CPU hotplug operation at a time, so no other
* CPU can be attempting to update rcu_cpu_kthread_task.
*/
-static void __rcu_offline_cpu(int cpu, struct rcu_state *rsp)
+static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
{
unsigned long flags;
unsigned long mask;
int need_report = 0;
struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
- struct rcu_node *rnp;
+ struct rcu_node *rnp = rdp->mynode; /* Outgoing CPU's rnp. */
+ /* Adjust any no-longer-needed kthreads. */
rcu_stop_cpu_kthread(cpu);
+ rcu_node_kthread_setaffinity(rnp, -1);
+
+ /* Remove the dying CPU from the bitmasks in the rcu_node hierarchy. */
/* Exclude any attempts to start a new grace period. */
raw_spin_lock_irqsave(&rsp->onofflock, flags);
/* Remove the outgoing CPU from the masks in the rcu_node hierarchy. */
- rnp = rdp->mynode; /* this is the outgoing CPU's rnp. */
mask = rdp->grpmask; /* rnp->grplo is constant. */
do {
raw_spin_lock(&rnp->lock); /* irqs already disabled. */
@@ -1299,20 +1428,11 @@
if (rnp->qsmaskinit != 0) {
if (rnp != rdp->mynode)
raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
- else
- trace_rcu_grace_period(rsp->name,
- rnp->gpnum + 1 -
- !!(rnp->qsmask & mask),
- "cpuofl");
break;
}
- if (rnp == rdp->mynode) {
- trace_rcu_grace_period(rsp->name,
- rnp->gpnum + 1 -
- !!(rnp->qsmask & mask),
- "cpuofl");
+ if (rnp == rdp->mynode)
need_report = rcu_preempt_offline_tasks(rsp, rnp, rdp);
- } else
+ else
raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
mask = rnp->grpmask;
rnp = rnp->parent;
@@ -1332,29 +1452,15 @@
raw_spin_unlock_irqrestore(&rnp->lock, flags);
if (need_report & RCU_OFL_TASKS_EXP_GP)
rcu_report_exp_rnp(rsp, rnp, true);
- rcu_node_kthread_setaffinity(rnp, -1);
-}
-
-/*
- * Remove the specified CPU from the RCU hierarchy and move any pending
- * callbacks that it might have to the current CPU. This code assumes
- * that at least one CPU in the system will remain running at all times.
- * Any attempt to offline -all- CPUs is likely to strand RCU callbacks.
- */
-static void rcu_offline_cpu(int cpu)
-{
- __rcu_offline_cpu(cpu, &rcu_sched_state);
- __rcu_offline_cpu(cpu, &rcu_bh_state);
- rcu_preempt_offline_cpu(cpu);
}
#else /* #ifdef CONFIG_HOTPLUG_CPU */
-static void rcu_send_cbs_to_online(struct rcu_state *rsp)
+static void rcu_cleanup_dying_cpu(struct rcu_state *rsp)
{
}
-static void rcu_offline_cpu(int cpu)
+static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
{
}
@@ -1368,11 +1474,11 @@
{
unsigned long flags;
struct rcu_head *next, *list, **tail;
- int bl, count;
+ int bl, count, count_lazy;
/* If no callbacks are ready, just return.*/
if (!cpu_has_callbacks_ready_to_invoke(rdp)) {
- trace_rcu_batch_start(rsp->name, 0, 0);
+ trace_rcu_batch_start(rsp->name, rdp->qlen_lazy, rdp->qlen, 0);
trace_rcu_batch_end(rsp->name, 0, !!ACCESS_ONCE(rdp->nxtlist),
need_resched(), is_idle_task(current),
rcu_is_callbacks_kthread());
@@ -1384,8 +1490,9 @@
* races with call_rcu() from interrupt handlers.
*/
local_irq_save(flags);
+ WARN_ON_ONCE(cpu_is_offline(smp_processor_id()));
bl = rdp->blimit;
- trace_rcu_batch_start(rsp->name, rdp->qlen, bl);
+ trace_rcu_batch_start(rsp->name, rdp->qlen_lazy, rdp->qlen, bl);
list = rdp->nxtlist;
rdp->nxtlist = *rdp->nxttail[RCU_DONE_TAIL];
*rdp->nxttail[RCU_DONE_TAIL] = NULL;
@@ -1396,12 +1503,13 @@
local_irq_restore(flags);
/* Invoke callbacks. */
- count = 0;
+ count = count_lazy = 0;
while (list) {
next = list->next;
prefetch(next);
debug_rcu_head_unqueue(list);
- __rcu_reclaim(rsp->name, list);
+ if (__rcu_reclaim(rsp->name, list))
+ count_lazy++;
list = next;
/* Stop only if limit reached and CPU has something to do. */
if (++count >= bl &&
@@ -1416,6 +1524,7 @@
rcu_is_callbacks_kthread());
/* Update count, and requeue any remaining callbacks. */
+ rdp->qlen_lazy -= count_lazy;
rdp->qlen -= count;
rdp->n_cbs_invoked += count;
if (list != NULL) {
@@ -1458,6 +1567,7 @@
void rcu_check_callbacks(int cpu, int user)
{
trace_rcu_utilization("Start scheduler-tick");
+ increment_cpu_stall_ticks();
if (user || rcu_is_cpu_rrupt_from_idle()) {
/*
@@ -1492,8 +1602,6 @@
trace_rcu_utilization("End scheduler-tick");
}
-#ifdef CONFIG_SMP
-
/*
* Scan the leaf rcu_node structures, processing dyntick state for any that
* have not yet encountered a quiescent state, using the function specified.
@@ -1616,15 +1724,6 @@
trace_rcu_utilization("End fqs");
}
-#else /* #ifdef CONFIG_SMP */
-
-static void force_quiescent_state(struct rcu_state *rsp, int relaxed)
-{
- set_need_resched();
-}
-
-#endif /* #else #ifdef CONFIG_SMP */
-
/*
* This does the RCU core processing work for the specified rcu_state
* and rcu_data structures. This may be called only from the CPU to
@@ -1702,11 +1801,12 @@
static void
__call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
- struct rcu_state *rsp)
+ struct rcu_state *rsp, bool lazy)
{
unsigned long flags;
struct rcu_data *rdp;
+ WARN_ON_ONCE((unsigned long)head & 0x3); /* Misaligned rcu_head! */
debug_rcu_head_queue(head);
head->func = func;
head->next = NULL;
@@ -1720,18 +1820,21 @@
* a quiescent state betweentimes.
*/
local_irq_save(flags);
+ WARN_ON_ONCE(cpu_is_offline(smp_processor_id()));
rdp = this_cpu_ptr(rsp->rda);
/* Add the callback to our list. */
*rdp->nxttail[RCU_NEXT_TAIL] = head;
rdp->nxttail[RCU_NEXT_TAIL] = &head->next;
rdp->qlen++;
+ if (lazy)
+ rdp->qlen_lazy++;
if (__is_kfree_rcu_offset((unsigned long)func))
trace_rcu_kfree_callback(rsp->name, head, (unsigned long)func,
- rdp->qlen);
+ rdp->qlen_lazy, rdp->qlen);
else
- trace_rcu_callback(rsp->name, head, rdp->qlen);
+ trace_rcu_callback(rsp->name, head, rdp->qlen_lazy, rdp->qlen);
/* If interrupts were disabled, don't dive into RCU core. */
if (irqs_disabled_flags(flags)) {
@@ -1778,16 +1881,16 @@
*/
void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
{
- __call_rcu(head, func, &rcu_sched_state);
+ __call_rcu(head, func, &rcu_sched_state, 0);
}
EXPORT_SYMBOL_GPL(call_rcu_sched);
/*
- * Queue an RCU for invocation after a quicker grace period.
+ * Queue an RCU callback for invocation after a quicker grace period.
*/
void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
{
- __call_rcu(head, func, &rcu_bh_state);
+ __call_rcu(head, func, &rcu_bh_state, 0);
}
EXPORT_SYMBOL_GPL(call_rcu_bh);
@@ -1816,6 +1919,10 @@
*/
void synchronize_sched(void)
{
+ rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+ !lock_is_held(&rcu_lock_map) &&
+ !lock_is_held(&rcu_sched_lock_map),
+ "Illegal synchronize_sched() in RCU-sched read-side critical section");
if (rcu_blocking_is_gp())
return;
wait_rcu_gp(call_rcu_sched);
@@ -1833,12 +1940,137 @@
*/
void synchronize_rcu_bh(void)
{
+ rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+ !lock_is_held(&rcu_lock_map) &&
+ !lock_is_held(&rcu_sched_lock_map),
+ "Illegal synchronize_rcu_bh() in RCU-bh read-side critical section");
if (rcu_blocking_is_gp())
return;
wait_rcu_gp(call_rcu_bh);
}
EXPORT_SYMBOL_GPL(synchronize_rcu_bh);
+static atomic_t sync_sched_expedited_started = ATOMIC_INIT(0);
+static atomic_t sync_sched_expedited_done = ATOMIC_INIT(0);
+
+static int synchronize_sched_expedited_cpu_stop(void *data)
+{
+ /*
+ * There must be a full memory barrier on each affected CPU
+ * between the time that try_stop_cpus() is called and the
+ * time that it returns.
+ *
+ * In the current initial implementation of cpu_stop, the
+ * above condition is already met when the control reaches
+ * this point and the following smp_mb() is not strictly
+ * necessary. Do smp_mb() anyway for documentation and
+ * robustness against future implementation changes.
+ */
+ smp_mb(); /* See above comment block. */
+ return 0;
+}
+
+/**
+ * synchronize_sched_expedited - Brute-force RCU-sched grace period
+ *
+ * Wait for an RCU-sched grace period to elapse, but use a "big hammer"
+ * approach to force the grace period to end quickly. This consumes
+ * significant time on all CPUs and is unfriendly to real-time workloads,
+ * so is thus not recommended for any sort of common-case code. In fact,
+ * if you are using synchronize_sched_expedited() in a loop, please
+ * restructure your code to batch your updates, and then use a single
+ * synchronize_sched() instead.
+ *
+ * Note that it is illegal to call this function while holding any lock
+ * that is acquired by a CPU-hotplug notifier. And yes, it is also illegal
+ * to call this function from a CPU-hotplug notifier. Failing to observe
+ * these restriction will result in deadlock.
+ *
+ * This implementation can be thought of as an application of ticket
+ * locking to RCU, with sync_sched_expedited_started and
+ * sync_sched_expedited_done taking on the roles of the halves
+ * of the ticket-lock word. Each task atomically increments
+ * sync_sched_expedited_started upon entry, snapshotting the old value,
+ * then attempts to stop all the CPUs. If this succeeds, then each
+ * CPU will have executed a context switch, resulting in an RCU-sched
+ * grace period. We are then done, so we use atomic_cmpxchg() to
+ * update sync_sched_expedited_done to match our snapshot -- but
+ * only if someone else has not already advanced past our snapshot.
+ *
+ * On the other hand, if try_stop_cpus() fails, we check the value
+ * of sync_sched_expedited_done. If it has advanced past our
+ * initial snapshot, then someone else must have forced a grace period
+ * some time after we took our snapshot. In this case, our work is
+ * done for us, and we can simply return. Otherwise, we try again,
+ * but keep our initial snapshot for purposes of checking for someone
+ * doing our work for us.
+ *
+ * If we fail too many times in a row, we fall back to synchronize_sched().
+ */
+void synchronize_sched_expedited(void)
+{
+ int firstsnap, s, snap, trycount = 0;
+
+ /* Note that atomic_inc_return() implies full memory barrier. */
+ firstsnap = snap = atomic_inc_return(&sync_sched_expedited_started);
+ get_online_cpus();
+ WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
+
+ /*
+ * Each pass through the following loop attempts to force a
+ * context switch on each CPU.
+ */
+ while (try_stop_cpus(cpu_online_mask,
+ synchronize_sched_expedited_cpu_stop,
+ NULL) == -EAGAIN) {
+ put_online_cpus();
+
+ /* No joy, try again later. Or just synchronize_sched(). */
+ if (trycount++ < 10)
+ udelay(trycount * num_online_cpus());
+ else {
+ synchronize_sched();
+ return;
+ }
+
+ /* Check to see if someone else did our work for us. */
+ s = atomic_read(&sync_sched_expedited_done);
+ if (UINT_CMP_GE((unsigned)s, (unsigned)firstsnap)) {
+ smp_mb(); /* ensure test happens before caller kfree */
+ return;
+ }
+
+ /*
+ * Refetching sync_sched_expedited_started allows later
+ * callers to piggyback on our grace period. We subtract
+ * 1 to get the same token that the last incrementer got.
+ * We retry after they started, so our grace period works
+ * for them, and they started after our first try, so their
+ * grace period works for us.
+ */
+ get_online_cpus();
+ snap = atomic_read(&sync_sched_expedited_started);
+ smp_mb(); /* ensure read is before try_stop_cpus(). */
+ }
+
+ /*
+ * Everyone up to our most recent fetch is covered by our grace
+ * period. Update the counter, but only if our work is still
+ * relevant -- which it won't be if someone who started later
+ * than we did beat us to the punch.
+ */
+ do {
+ s = atomic_read(&sync_sched_expedited_done);
+ if (UINT_CMP_GE((unsigned)s, (unsigned)snap)) {
+ smp_mb(); /* ensure test happens before caller kfree */
+ break;
+ }
+ } while (atomic_cmpxchg(&sync_sched_expedited_done, s, snap) != s);
+
+ put_online_cpus();
+}
+EXPORT_SYMBOL_GPL(synchronize_sched_expedited);
+
/*
* Check to see if there is any immediate RCU-related work to be done
* by the current CPU, for the specified type of RCU, returning 1 if so.
@@ -1932,7 +2164,7 @@
/* RCU callbacks either ready or pending? */
return per_cpu(rcu_sched_data, cpu).nxtlist ||
per_cpu(rcu_bh_data, cpu).nxtlist ||
- rcu_preempt_needs_cpu(cpu);
+ rcu_preempt_cpu_has_callbacks(cpu);
}
static DEFINE_PER_CPU(struct rcu_head, rcu_barrier_head) = {NULL};
@@ -2027,9 +2259,10 @@
rdp->nxtlist = NULL;
for (i = 0; i < RCU_NEXT_SIZE; i++)
rdp->nxttail[i] = &rdp->nxtlist;
+ rdp->qlen_lazy = 0;
rdp->qlen = 0;
rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
- WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_NESTING);
+ WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
rdp->cpu = cpu;
rdp->rsp = rsp;
@@ -2057,7 +2290,7 @@
rdp->qlen_last_fqs_check = 0;
rdp->n_force_qs_snap = rsp->n_force_qs;
rdp->blimit = blimit;
- rdp->dynticks->dynticks_nesting = DYNTICK_TASK_NESTING;
+ rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
atomic_set(&rdp->dynticks->dynticks,
(atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
rcu_prepare_for_idle_init(cpu);
@@ -2139,16 +2372,18 @@
* touch any data without introducing corruption. We send the
* dying CPU's callbacks to an arbitrarily chosen online CPU.
*/
- rcu_send_cbs_to_online(&rcu_bh_state);
- rcu_send_cbs_to_online(&rcu_sched_state);
- rcu_preempt_send_cbs_to_online();
+ rcu_cleanup_dying_cpu(&rcu_bh_state);
+ rcu_cleanup_dying_cpu(&rcu_sched_state);
+ rcu_preempt_cleanup_dying_cpu();
rcu_cleanup_after_idle(cpu);
break;
case CPU_DEAD:
case CPU_DEAD_FROZEN:
case CPU_UP_CANCELED:
case CPU_UP_CANCELED_FROZEN:
- rcu_offline_cpu(cpu);
+ rcu_cleanup_dead_cpu(cpu, &rcu_bh_state);
+ rcu_cleanup_dead_cpu(cpu, &rcu_sched_state);
+ rcu_preempt_cleanup_dead_cpu(cpu);
break;
default:
break;
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index fddff92..cdd1be0 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -239,6 +239,12 @@
bool preemptible; /* Preemptible RCU? */
struct rcu_node *mynode; /* This CPU's leaf of hierarchy */
unsigned long grpmask; /* Mask to apply to leaf qsmask. */
+#ifdef CONFIG_RCU_CPU_STALL_INFO
+ unsigned long ticks_this_gp; /* The number of scheduling-clock */
+ /* ticks this CPU has handled */
+ /* during and after the last grace */
+ /* period it is aware of. */
+#endif /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
/* 2) batch handling */
/*
@@ -265,7 +271,8 @@
*/
struct rcu_head *nxtlist;
struct rcu_head **nxttail[RCU_NEXT_SIZE];
- long qlen; /* # of queued callbacks */
+ long qlen_lazy; /* # of lazy queued callbacks */
+ long qlen; /* # of queued callbacks, incl lazy */
long qlen_last_fqs_check;
/* qlen at last check for QS forcing */
unsigned long n_cbs_invoked; /* count of RCU cbs invoked. */
@@ -282,7 +289,6 @@
/* 4) reasons this CPU needed to be kicked by force_quiescent_state */
unsigned long dynticks_fqs; /* Kicked due to dynticks idle. */
unsigned long offline_fqs; /* Kicked due to being offline. */
- unsigned long resched_ipi; /* Sent a resched IPI. */
/* 5) __rcu_pending() statistics. */
unsigned long n_rcu_pending; /* rcu_pending() calls since boot. */
@@ -313,12 +319,6 @@
#else
#define RCU_STALL_DELAY_DELTA 0
#endif
-
-#define RCU_SECONDS_TILL_STALL_CHECK (CONFIG_RCU_CPU_STALL_TIMEOUT * HZ + \
- RCU_STALL_DELAY_DELTA)
- /* for rsp->jiffies_stall */
-#define RCU_SECONDS_TILL_STALL_RECHECK (3 * RCU_SECONDS_TILL_STALL_CHECK + 30)
- /* for rsp->jiffies_stall */
#define RCU_STALL_RAT_DELAY 2 /* Allow other CPUs time */
/* to take at least one */
/* scheduling clock irq */
@@ -438,8 +438,8 @@
static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
struct rcu_node *rnp,
struct rcu_data *rdp);
-static void rcu_preempt_offline_cpu(int cpu);
#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+static void rcu_preempt_cleanup_dead_cpu(int cpu);
static void rcu_preempt_check_callbacks(int cpu);
static void rcu_preempt_process_callbacks(void);
void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
@@ -448,9 +448,9 @@
bool wake);
#endif /* #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU) */
static int rcu_preempt_pending(int cpu);
-static int rcu_preempt_needs_cpu(int cpu);
+static int rcu_preempt_cpu_has_callbacks(int cpu);
static void __cpuinit rcu_preempt_init_percpu_data(int cpu);
-static void rcu_preempt_send_cbs_to_online(void);
+static void rcu_preempt_cleanup_dying_cpu(void);
static void __init __rcu_init_preempt(void);
static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
@@ -471,5 +471,10 @@
static void rcu_prepare_for_idle_init(int cpu);
static void rcu_cleanup_after_idle(int cpu);
static void rcu_prepare_for_idle(int cpu);
+static void print_cpu_stall_info_begin(void);
+static void print_cpu_stall_info(struct rcu_state *rsp, int cpu);
+static void print_cpu_stall_info_end(void);
+static void zero_cpu_stall_ticks(struct rcu_data *rdp);
+static void increment_cpu_stall_ticks(void);
#endif /* #ifndef RCU_TREE_NONCORE */
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 8bb35d7..c023464 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -25,7 +25,6 @@
*/
#include <linux/delay.h>
-#include <linux/stop_machine.h>
#define RCU_KTHREAD_PRIO 1
@@ -63,7 +62,10 @@
printk(KERN_INFO "\tRCU torture testing starts during boot.\n");
#endif
#if defined(CONFIG_TREE_PREEMPT_RCU) && !defined(CONFIG_RCU_CPU_STALL_VERBOSE)
- printk(KERN_INFO "\tVerbose stalled-CPUs detection is disabled.\n");
+ printk(KERN_INFO "\tDump stacks of tasks blocking RCU-preempt GP.\n");
+#endif
+#if defined(CONFIG_RCU_CPU_STALL_INFO)
+ printk(KERN_INFO "\tAdditional per-CPU info printed with stalls.\n");
#endif
#if NUM_RCU_LVL_4 != 0
printk(KERN_INFO "\tExperimental four-level hierarchy is enabled.\n");
@@ -490,6 +492,31 @@
#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_VERBOSE */
+#ifdef CONFIG_RCU_CPU_STALL_INFO
+
+static void rcu_print_task_stall_begin(struct rcu_node *rnp)
+{
+ printk(KERN_ERR "\tTasks blocked on level-%d rcu_node (CPUs %d-%d):",
+ rnp->level, rnp->grplo, rnp->grphi);
+}
+
+static void rcu_print_task_stall_end(void)
+{
+ printk(KERN_CONT "\n");
+}
+
+#else /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+static void rcu_print_task_stall_begin(struct rcu_node *rnp)
+{
+}
+
+static void rcu_print_task_stall_end(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
/*
* Scan the current list of tasks blocked within RCU read-side critical
* sections, printing out the tid of each.
@@ -501,12 +528,14 @@
if (!rcu_preempt_blocked_readers_cgp(rnp))
return 0;
+ rcu_print_task_stall_begin(rnp);
t = list_entry(rnp->gp_tasks,
struct task_struct, rcu_node_entry);
list_for_each_entry_continue(t, &rnp->blkd_tasks, rcu_node_entry) {
- printk(" P%d", t->pid);
+ printk(KERN_CONT " P%d", t->pid);
ndetected++;
}
+ rcu_print_task_stall_end();
return ndetected;
}
@@ -581,7 +610,7 @@
* absolutely necessary, but this is a good performance/complexity
* tradeoff.
*/
- if (rcu_preempt_blocked_readers_cgp(rnp))
+ if (rcu_preempt_blocked_readers_cgp(rnp) && rnp->qsmask == 0)
retval |= RCU_OFL_TASKS_NORM_GP;
if (rcu_preempted_readers_exp(rnp))
retval |= RCU_OFL_TASKS_EXP_GP;
@@ -618,16 +647,16 @@
return retval;
}
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
/*
* Do CPU-offline processing for preemptible RCU.
*/
-static void rcu_preempt_offline_cpu(int cpu)
+static void rcu_preempt_cleanup_dead_cpu(int cpu)
{
- __rcu_offline_cpu(cpu, &rcu_preempt_state);
+ rcu_cleanup_dead_cpu(cpu, &rcu_preempt_state);
}
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
/*
* Check for a quiescent state from the current CPU. When a task blocks,
* the task is recorded in the corresponding CPU's rcu_node structure,
@@ -671,10 +700,24 @@
*/
void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
{
- __call_rcu(head, func, &rcu_preempt_state);
+ __call_rcu(head, func, &rcu_preempt_state, 0);
}
EXPORT_SYMBOL_GPL(call_rcu);
+/*
+ * Queue an RCU callback for lazy invocation after a grace period.
+ * This will likely be later named something like "call_rcu_lazy()",
+ * but this change will require some way of tagging the lazy RCU
+ * callbacks in the list of pending callbacks. Until then, this
+ * function may only be called from __kfree_rcu().
+ */
+void kfree_call_rcu(struct rcu_head *head,
+ void (*func)(struct rcu_head *rcu))
+{
+ __call_rcu(head, func, &rcu_preempt_state, 1);
+}
+EXPORT_SYMBOL_GPL(kfree_call_rcu);
+
/**
* synchronize_rcu - wait until a grace period has elapsed.
*
@@ -688,6 +731,10 @@
*/
void synchronize_rcu(void)
{
+ rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+ !lock_is_held(&rcu_lock_map) &&
+ !lock_is_held(&rcu_sched_lock_map),
+ "Illegal synchronize_rcu() in RCU read-side critical section");
if (!rcu_scheduler_active)
return;
wait_rcu_gp(call_rcu);
@@ -788,10 +835,22 @@
rcu_report_exp_rnp(rsp, rnp, false); /* Don't wake self. */
}
-/*
- * Wait for an rcu-preempt grace period, but expedite it. The basic idea
- * is to invoke synchronize_sched_expedited() to push all the tasks to
- * the ->blkd_tasks lists and wait for this list to drain.
+/**
+ * synchronize_rcu_expedited - Brute-force RCU grace period
+ *
+ * Wait for an RCU-preempt grace period, but expedite it. The basic
+ * idea is to invoke synchronize_sched_expedited() to push all the tasks to
+ * the ->blkd_tasks lists and wait for this list to drain. This consumes
+ * significant time on all CPUs and is unfriendly to real-time workloads,
+ * so is thus not recommended for any sort of common-case code.
+ * In fact, if you are using synchronize_rcu_expedited() in a loop,
+ * please restructure your code to batch your updates, and then Use a
+ * single synchronize_rcu() instead.
+ *
+ * Note that it is illegal to call this function while holding any lock
+ * that is acquired by a CPU-hotplug notifier. And yes, it is also illegal
+ * to call this function from a CPU-hotplug notifier. Failing to observe
+ * these restriction will result in deadlock.
*/
void synchronize_rcu_expedited(void)
{
@@ -869,9 +928,9 @@
}
/*
- * Does preemptible RCU need the CPU to stay out of dynticks mode?
+ * Does preemptible RCU have callbacks on this CPU?
*/
-static int rcu_preempt_needs_cpu(int cpu)
+static int rcu_preempt_cpu_has_callbacks(int cpu)
{
return !!per_cpu(rcu_preempt_data, cpu).nxtlist;
}
@@ -894,11 +953,12 @@
}
/*
- * Move preemptible RCU's callbacks from dying CPU to other online CPU.
+ * Move preemptible RCU's callbacks from dying CPU to other online CPU
+ * and record a quiescent state.
*/
-static void rcu_preempt_send_cbs_to_online(void)
+static void rcu_preempt_cleanup_dying_cpu(void)
{
- rcu_send_cbs_to_online(&rcu_preempt_state);
+ rcu_cleanup_dying_cpu(&rcu_preempt_state);
}
/*
@@ -1034,16 +1094,16 @@
return 0;
}
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
/*
* Because preemptible RCU does not exist, it never needs CPU-offline
* processing.
*/
-static void rcu_preempt_offline_cpu(int cpu)
+static void rcu_preempt_cleanup_dead_cpu(int cpu)
{
}
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
/*
* Because preemptible RCU does not exist, it never has any callbacks
* to check.
@@ -1061,6 +1121,22 @@
}
/*
+ * Queue an RCU callback for lazy invocation after a grace period.
+ * This will likely be later named something like "call_rcu_lazy()",
+ * but this change will require some way of tagging the lazy RCU
+ * callbacks in the list of pending callbacks. Until then, this
+ * function may only be called from __kfree_rcu().
+ *
+ * Because there is no preemptible RCU, we use RCU-sched instead.
+ */
+void kfree_call_rcu(struct rcu_head *head,
+ void (*func)(struct rcu_head *rcu))
+{
+ __call_rcu(head, func, &rcu_sched_state, 1);
+}
+EXPORT_SYMBOL_GPL(kfree_call_rcu);
+
+/*
* Wait for an rcu-preempt grace period, but make it happen quickly.
* But because preemptible RCU does not exist, map to rcu-sched.
*/
@@ -1093,9 +1169,9 @@
}
/*
- * Because preemptible RCU does not exist, it never needs any CPU.
+ * Because preemptible RCU does not exist, it never has callbacks
*/
-static int rcu_preempt_needs_cpu(int cpu)
+static int rcu_preempt_cpu_has_callbacks(int cpu)
{
return 0;
}
@@ -1119,9 +1195,9 @@
}
/*
- * Because there is no preemptible RCU, there are no callbacks to move.
+ * Because there is no preemptible RCU, there is no cleanup to do.
*/
-static void rcu_preempt_send_cbs_to_online(void)
+static void rcu_preempt_cleanup_dying_cpu(void)
{
}
@@ -1823,132 +1899,6 @@
#endif /* #else #ifdef CONFIG_RCU_BOOST */
-#ifndef CONFIG_SMP
-
-void synchronize_sched_expedited(void)
-{
- cond_resched();
-}
-EXPORT_SYMBOL_GPL(synchronize_sched_expedited);
-
-#else /* #ifndef CONFIG_SMP */
-
-static atomic_t sync_sched_expedited_started = ATOMIC_INIT(0);
-static atomic_t sync_sched_expedited_done = ATOMIC_INIT(0);
-
-static int synchronize_sched_expedited_cpu_stop(void *data)
-{
- /*
- * There must be a full memory barrier on each affected CPU
- * between the time that try_stop_cpus() is called and the
- * time that it returns.
- *
- * In the current initial implementation of cpu_stop, the
- * above condition is already met when the control reaches
- * this point and the following smp_mb() is not strictly
- * necessary. Do smp_mb() anyway for documentation and
- * robustness against future implementation changes.
- */
- smp_mb(); /* See above comment block. */
- return 0;
-}
-
-/*
- * Wait for an rcu-sched grace period to elapse, but use "big hammer"
- * approach to force grace period to end quickly. This consumes
- * significant time on all CPUs, and is thus not recommended for
- * any sort of common-case code.
- *
- * Note that it is illegal to call this function while holding any
- * lock that is acquired by a CPU-hotplug notifier. Failing to
- * observe this restriction will result in deadlock.
- *
- * This implementation can be thought of as an application of ticket
- * locking to RCU, with sync_sched_expedited_started and
- * sync_sched_expedited_done taking on the roles of the halves
- * of the ticket-lock word. Each task atomically increments
- * sync_sched_expedited_started upon entry, snapshotting the old value,
- * then attempts to stop all the CPUs. If this succeeds, then each
- * CPU will have executed a context switch, resulting in an RCU-sched
- * grace period. We are then done, so we use atomic_cmpxchg() to
- * update sync_sched_expedited_done to match our snapshot -- but
- * only if someone else has not already advanced past our snapshot.
- *
- * On the other hand, if try_stop_cpus() fails, we check the value
- * of sync_sched_expedited_done. If it has advanced past our
- * initial snapshot, then someone else must have forced a grace period
- * some time after we took our snapshot. In this case, our work is
- * done for us, and we can simply return. Otherwise, we try again,
- * but keep our initial snapshot for purposes of checking for someone
- * doing our work for us.
- *
- * If we fail too many times in a row, we fall back to synchronize_sched().
- */
-void synchronize_sched_expedited(void)
-{
- int firstsnap, s, snap, trycount = 0;
-
- /* Note that atomic_inc_return() implies full memory barrier. */
- firstsnap = snap = atomic_inc_return(&sync_sched_expedited_started);
- get_online_cpus();
-
- /*
- * Each pass through the following loop attempts to force a
- * context switch on each CPU.
- */
- while (try_stop_cpus(cpu_online_mask,
- synchronize_sched_expedited_cpu_stop,
- NULL) == -EAGAIN) {
- put_online_cpus();
-
- /* No joy, try again later. Or just synchronize_sched(). */
- if (trycount++ < 10)
- udelay(trycount * num_online_cpus());
- else {
- synchronize_sched();
- return;
- }
-
- /* Check to see if someone else did our work for us. */
- s = atomic_read(&sync_sched_expedited_done);
- if (UINT_CMP_GE((unsigned)s, (unsigned)firstsnap)) {
- smp_mb(); /* ensure test happens before caller kfree */
- return;
- }
-
- /*
- * Refetching sync_sched_expedited_started allows later
- * callers to piggyback on our grace period. We subtract
- * 1 to get the same token that the last incrementer got.
- * We retry after they started, so our grace period works
- * for them, and they started after our first try, so their
- * grace period works for us.
- */
- get_online_cpus();
- snap = atomic_read(&sync_sched_expedited_started);
- smp_mb(); /* ensure read is before try_stop_cpus(). */
- }
-
- /*
- * Everyone up to our most recent fetch is covered by our grace
- * period. Update the counter, but only if our work is still
- * relevant -- which it won't be if someone who started later
- * than we did beat us to the punch.
- */
- do {
- s = atomic_read(&sync_sched_expedited_done);
- if (UINT_CMP_GE((unsigned)s, (unsigned)snap)) {
- smp_mb(); /* ensure test happens before caller kfree */
- break;
- }
- } while (atomic_cmpxchg(&sync_sched_expedited_done, s, snap) != s);
-
- put_online_cpus();
-}
-EXPORT_SYMBOL_GPL(synchronize_sched_expedited);
-
-#endif /* #else #ifndef CONFIG_SMP */
-
#if !defined(CONFIG_RCU_FAST_NO_HZ)
/*
@@ -1981,7 +1931,7 @@
}
/*
- * Do the idle-entry grace-period work, which, because CONFIG_RCU_FAST_NO_HZ=y,
+ * Do the idle-entry grace-period work, which, because CONFIG_RCU_FAST_NO_HZ=n,
* is nothing.
*/
static void rcu_prepare_for_idle(int cpu)
@@ -2015,6 +1965,9 @@
* number, be warned: Setting RCU_IDLE_GP_DELAY too high can hang your
* system. And if you are -that- concerned about energy efficiency,
* just power the system down and be done with it!
+ * RCU_IDLE_LAZY_GP_DELAY gives the number of jiffies that a CPU is
+ * permitted to sleep in dyntick-idle mode with only lazy RCU
+ * callbacks pending. Setting this too high can OOM your system.
*
* The values below work well in practice. If future workloads require
* adjustment, they can be converted into kernel config parameters, though
@@ -2023,11 +1976,13 @@
#define RCU_IDLE_FLUSHES 5 /* Number of dyntick-idle tries. */
#define RCU_IDLE_OPT_FLUSHES 3 /* Optional dyntick-idle tries. */
#define RCU_IDLE_GP_DELAY 6 /* Roughly one grace period. */
+#define RCU_IDLE_LAZY_GP_DELAY (6 * HZ) /* Roughly six seconds. */
static DEFINE_PER_CPU(int, rcu_dyntick_drain);
static DEFINE_PER_CPU(unsigned long, rcu_dyntick_holdoff);
static DEFINE_PER_CPU(struct hrtimer, rcu_idle_gp_timer);
-static ktime_t rcu_idle_gp_wait;
+static ktime_t rcu_idle_gp_wait; /* If some non-lazy callbacks. */
+static ktime_t rcu_idle_lazy_gp_wait; /* If only lazy callbacks. */
/*
* Allow the CPU to enter dyntick-idle mode if either: (1) There are no
@@ -2048,6 +2003,48 @@
}
/*
+ * Does the specified flavor of RCU have non-lazy callbacks pending on
+ * the specified CPU? Both RCU flavor and CPU are specified by the
+ * rcu_data structure.
+ */
+static bool __rcu_cpu_has_nonlazy_callbacks(struct rcu_data *rdp)
+{
+ return rdp->qlen != rdp->qlen_lazy;
+}
+
+#ifdef CONFIG_TREE_PREEMPT_RCU
+
+/*
+ * Are there non-lazy RCU-preempt callbacks? (There cannot be if there
+ * is no RCU-preempt in the kernel.)
+ */
+static bool rcu_preempt_cpu_has_nonlazy_callbacks(int cpu)
+{
+ struct rcu_data *rdp = &per_cpu(rcu_preempt_data, cpu);
+
+ return __rcu_cpu_has_nonlazy_callbacks(rdp);
+}
+
+#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+
+static bool rcu_preempt_cpu_has_nonlazy_callbacks(int cpu)
+{
+ return 0;
+}
+
+#endif /* else #ifdef CONFIG_TREE_PREEMPT_RCU */
+
+/*
+ * Does any flavor of RCU have non-lazy callbacks on the specified CPU?
+ */
+static bool rcu_cpu_has_nonlazy_callbacks(int cpu)
+{
+ return __rcu_cpu_has_nonlazy_callbacks(&per_cpu(rcu_sched_data, cpu)) ||
+ __rcu_cpu_has_nonlazy_callbacks(&per_cpu(rcu_bh_data, cpu)) ||
+ rcu_preempt_cpu_has_nonlazy_callbacks(cpu);
+}
+
+/*
* Timer handler used to force CPU to start pushing its remaining RCU
* callbacks in the case where it entered dyntick-idle mode with callbacks
* pending. The hander doesn't really need to do anything because the
@@ -2074,6 +2071,8 @@
unsigned int upj = jiffies_to_usecs(RCU_IDLE_GP_DELAY);
rcu_idle_gp_wait = ns_to_ktime(upj * (u64)1000);
+ upj = jiffies_to_usecs(RCU_IDLE_LAZY_GP_DELAY);
+ rcu_idle_lazy_gp_wait = ns_to_ktime(upj * (u64)1000);
firsttime = 0;
}
}
@@ -2109,10 +2108,6 @@
*/
static void rcu_prepare_for_idle(int cpu)
{
- unsigned long flags;
-
- local_irq_save(flags);
-
/*
* If there are no callbacks on this CPU, enter dyntick-idle mode.
* Also reset state to avoid prejudicing later attempts.
@@ -2120,7 +2115,6 @@
if (!rcu_cpu_has_callbacks(cpu)) {
per_cpu(rcu_dyntick_holdoff, cpu) = jiffies - 1;
per_cpu(rcu_dyntick_drain, cpu) = 0;
- local_irq_restore(flags);
trace_rcu_prep_idle("No callbacks");
return;
}
@@ -2130,7 +2124,6 @@
* refrained from disabling the scheduling-clock tick.
*/
if (per_cpu(rcu_dyntick_holdoff, cpu) == jiffies) {
- local_irq_restore(flags);
trace_rcu_prep_idle("In holdoff");
return;
}
@@ -2140,18 +2133,22 @@
/* First time through, initialize the counter. */
per_cpu(rcu_dyntick_drain, cpu) = RCU_IDLE_FLUSHES;
} else if (per_cpu(rcu_dyntick_drain, cpu) <= RCU_IDLE_OPT_FLUSHES &&
- !rcu_pending(cpu)) {
+ !rcu_pending(cpu) &&
+ !local_softirq_pending()) {
/* Can we go dyntick-idle despite still having callbacks? */
trace_rcu_prep_idle("Dyntick with callbacks");
per_cpu(rcu_dyntick_drain, cpu) = 0;
- per_cpu(rcu_dyntick_holdoff, cpu) = jiffies - 1;
- hrtimer_start(&per_cpu(rcu_idle_gp_timer, cpu),
- rcu_idle_gp_wait, HRTIMER_MODE_REL);
+ per_cpu(rcu_dyntick_holdoff, cpu) = jiffies;
+ if (rcu_cpu_has_nonlazy_callbacks(cpu))
+ hrtimer_start(&per_cpu(rcu_idle_gp_timer, cpu),
+ rcu_idle_gp_wait, HRTIMER_MODE_REL);
+ else
+ hrtimer_start(&per_cpu(rcu_idle_gp_timer, cpu),
+ rcu_idle_lazy_gp_wait, HRTIMER_MODE_REL);
return; /* Nothing more to do immediately. */
} else if (--per_cpu(rcu_dyntick_drain, cpu) <= 0) {
/* We have hit the limit, so time to give up. */
per_cpu(rcu_dyntick_holdoff, cpu) = jiffies;
- local_irq_restore(flags);
trace_rcu_prep_idle("Begin holdoff");
invoke_rcu_core(); /* Force the CPU out of dyntick-idle. */
return;
@@ -2163,23 +2160,17 @@
*/
#ifdef CONFIG_TREE_PREEMPT_RCU
if (per_cpu(rcu_preempt_data, cpu).nxtlist) {
- local_irq_restore(flags);
rcu_preempt_qs(cpu);
force_quiescent_state(&rcu_preempt_state, 0);
- local_irq_save(flags);
}
#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
if (per_cpu(rcu_sched_data, cpu).nxtlist) {
- local_irq_restore(flags);
rcu_sched_qs(cpu);
force_quiescent_state(&rcu_sched_state, 0);
- local_irq_save(flags);
}
if (per_cpu(rcu_bh_data, cpu).nxtlist) {
- local_irq_restore(flags);
rcu_bh_qs(cpu);
force_quiescent_state(&rcu_bh_state, 0);
- local_irq_save(flags);
}
/*
@@ -2187,13 +2178,124 @@
* So try forcing the callbacks through the grace period.
*/
if (rcu_cpu_has_callbacks(cpu)) {
- local_irq_restore(flags);
trace_rcu_prep_idle("More callbacks");
invoke_rcu_core();
- } else {
- local_irq_restore(flags);
+ } else
trace_rcu_prep_idle("Callbacks drained");
- }
}
#endif /* #else #if !defined(CONFIG_RCU_FAST_NO_HZ) */
+
+#ifdef CONFIG_RCU_CPU_STALL_INFO
+
+#ifdef CONFIG_RCU_FAST_NO_HZ
+
+static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
+{
+ struct hrtimer *hrtp = &per_cpu(rcu_idle_gp_timer, cpu);
+
+ sprintf(cp, "drain=%d %c timer=%lld",
+ per_cpu(rcu_dyntick_drain, cpu),
+ per_cpu(rcu_dyntick_holdoff, cpu) == jiffies ? 'H' : '.',
+ hrtimer_active(hrtp)
+ ? ktime_to_us(hrtimer_get_remaining(hrtp))
+ : -1);
+}
+
+#else /* #ifdef CONFIG_RCU_FAST_NO_HZ */
+
+static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_FAST_NO_HZ */
+
+/* Initiate the stall-info list. */
+static void print_cpu_stall_info_begin(void)
+{
+ printk(KERN_CONT "\n");
+}
+
+/*
+ * Print out diagnostic information for the specified stalled CPU.
+ *
+ * If the specified CPU is aware of the current RCU grace period
+ * (flavor specified by rsp), then print the number of scheduling
+ * clock interrupts the CPU has taken during the time that it has
+ * been aware. Otherwise, print the number of RCU grace periods
+ * that this CPU is ignorant of, for example, "1" if the CPU was
+ * aware of the previous grace period.
+ *
+ * Also print out idle and (if CONFIG_RCU_FAST_NO_HZ) idle-entry info.
+ */
+static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
+{
+ char fast_no_hz[72];
+ struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
+ struct rcu_dynticks *rdtp = rdp->dynticks;
+ char *ticks_title;
+ unsigned long ticks_value;
+
+ if (rsp->gpnum == rdp->gpnum) {
+ ticks_title = "ticks this GP";
+ ticks_value = rdp->ticks_this_gp;
+ } else {
+ ticks_title = "GPs behind";
+ ticks_value = rsp->gpnum - rdp->gpnum;
+ }
+ print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
+ printk(KERN_ERR "\t%d: (%lu %s) idle=%03x/%llx/%d %s\n",
+ cpu, ticks_value, ticks_title,
+ atomic_read(&rdtp->dynticks) & 0xfff,
+ rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
+ fast_no_hz);
+}
+
+/* Terminate the stall-info list. */
+static void print_cpu_stall_info_end(void)
+{
+ printk(KERN_ERR "\t");
+}
+
+/* Zero ->ticks_this_gp for all flavors of RCU. */
+static void zero_cpu_stall_ticks(struct rcu_data *rdp)
+{
+ rdp->ticks_this_gp = 0;
+}
+
+/* Increment ->ticks_this_gp for all flavors of RCU. */
+static void increment_cpu_stall_ticks(void)
+{
+ __get_cpu_var(rcu_sched_data).ticks_this_gp++;
+ __get_cpu_var(rcu_bh_data).ticks_this_gp++;
+#ifdef CONFIG_TREE_PREEMPT_RCU
+ __get_cpu_var(rcu_preempt_data).ticks_this_gp++;
+#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+}
+
+#else /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+static void print_cpu_stall_info_begin(void)
+{
+ printk(KERN_CONT " {");
+}
+
+static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
+{
+ printk(KERN_CONT " %d", cpu);
+}
+
+static void print_cpu_stall_info_end(void)
+{
+ printk(KERN_CONT "} ");
+}
+
+static void zero_cpu_stall_ticks(struct rcu_data *rdp)
+{
+}
+
+static void increment_cpu_stall_ticks(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_INFO */
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index 654cfe6..ed459ed 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -72,9 +72,9 @@
rdp->dynticks->dynticks_nesting,
rdp->dynticks->dynticks_nmi_nesting,
rdp->dynticks_fqs);
- seq_printf(m, " of=%lu ri=%lu", rdp->offline_fqs, rdp->resched_ipi);
- seq_printf(m, " ql=%ld qs=%c%c%c%c",
- rdp->qlen,
+ seq_printf(m, " of=%lu", rdp->offline_fqs);
+ seq_printf(m, " ql=%ld/%ld qs=%c%c%c%c",
+ rdp->qlen_lazy, rdp->qlen,
".N"[rdp->nxttail[RCU_NEXT_READY_TAIL] !=
rdp->nxttail[RCU_NEXT_TAIL]],
".R"[rdp->nxttail[RCU_WAIT_TAIL] !=
@@ -144,8 +144,8 @@
rdp->dynticks->dynticks_nesting,
rdp->dynticks->dynticks_nmi_nesting,
rdp->dynticks_fqs);
- seq_printf(m, ",%lu,%lu", rdp->offline_fqs, rdp->resched_ipi);
- seq_printf(m, ",%ld,\"%c%c%c%c\"", rdp->qlen,
+ seq_printf(m, ",%lu", rdp->offline_fqs);
+ seq_printf(m, ",%ld,%ld,\"%c%c%c%c\"", rdp->qlen_lazy, rdp->qlen,
".N"[rdp->nxttail[RCU_NEXT_READY_TAIL] !=
rdp->nxttail[RCU_NEXT_TAIL]],
".R"[rdp->nxttail[RCU_WAIT_TAIL] !=
@@ -168,7 +168,7 @@
{
seq_puts(m, "\"CPU\",\"Online?\",\"c\",\"g\",\"pq\",\"pgp\",\"pq\",");
seq_puts(m, "\"dt\",\"dt nesting\",\"dt NMI nesting\",\"df\",");
- seq_puts(m, "\"of\",\"ri\",\"ql\",\"qs\"");
+ seq_puts(m, "\"of\",\"qll\",\"ql\",\"qs\"");
#ifdef CONFIG_RCU_BOOST
seq_puts(m, "\"kt\",\"ktl\"");
#endif /* #ifdef CONFIG_RCU_BOOST */
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 06d4099..8afc6a8 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -310,31 +310,21 @@
__irq_enter();
}
+static inline void invoke_softirq(void)
+{
+ if (!force_irqthreads) {
#ifdef __ARCH_IRQ_EXIT_IRQS_DISABLED
-static inline void invoke_softirq(void)
-{
- if (!force_irqthreads)
__do_softirq();
- else {
- __local_bh_disable((unsigned long)__builtin_return_address(0),
- SOFTIRQ_OFFSET);
- wakeup_softirqd();
- __local_bh_enable(SOFTIRQ_OFFSET);
- }
-}
#else
-static inline void invoke_softirq(void)
-{
- if (!force_irqthreads)
do_softirq();
- else {
+#endif
+ } else {
__local_bh_disable((unsigned long)__builtin_return_address(0),
SOFTIRQ_OFFSET);
wakeup_softirqd();
__local_bh_enable(SOFTIRQ_OFFSET);
}
}
-#endif
/*
* Exit an interrupt context. Process softirqs if needed and possible:
diff --git a/kernel/srcu.c b/kernel/srcu.c
index 0febf61..ba35f3a 100644
--- a/kernel/srcu.c
+++ b/kernel/srcu.c
@@ -172,6 +172,12 @@
{
int idx;
+ rcu_lockdep_assert(!lock_is_held(&sp->dep_map) &&
+ !lock_is_held(&rcu_bh_lock_map) &&
+ !lock_is_held(&rcu_lock_map) &&
+ !lock_is_held(&rcu_sched_lock_map),
+ "Illegal synchronize_srcu() in same-type SRCU (or RCU) read-side critical section");
+
idx = sp->completed;
mutex_lock(&sp->mutex);
@@ -280,19 +286,26 @@
EXPORT_SYMBOL_GPL(synchronize_srcu);
/**
- * synchronize_srcu_expedited - like synchronize_srcu, but less patient
+ * synchronize_srcu_expedited - Brute-force SRCU grace period
* @sp: srcu_struct with which to synchronize.
*
- * Flip the completed counter, and wait for the old count to drain to zero.
- * As with classic RCU, the updater must use some separate means of
- * synchronizing concurrent updates. Can block; must be called from
- * process context.
+ * Wait for an SRCU grace period to elapse, but use a "big hammer"
+ * approach to force the grace period to end quickly. This consumes
+ * significant time on all CPUs and is unfriendly to real-time workloads,
+ * so is thus not recommended for any sort of common-case code. In fact,
+ * if you are using synchronize_srcu_expedited() in a loop, please
+ * restructure your code to batch your updates, and then use a single
+ * synchronize_srcu() instead.
*
- * Note that it is illegal to call synchronize_srcu_expedited()
- * from the corresponding SRCU read-side critical section; doing so
- * will result in deadlock. However, it is perfectly legal to call
- * synchronize_srcu_expedited() on one srcu_struct from some other
- * srcu_struct's read-side critical section.
+ * Note that it is illegal to call this function while holding any lock
+ * that is acquired by a CPU-hotplug notifier. And yes, it is also illegal
+ * to call this function from a CPU-hotplug notifier. Failing to observe
+ * these restriction will result in deadlock. It is also illegal to call
+ * synchronize_srcu_expedited() from the corresponding SRCU read-side
+ * critical section; doing so will result in deadlock. However, it is
+ * perfectly legal to call synchronize_srcu_expedited() on one srcu_struct
+ * from some other srcu_struct's read-side critical section, as long as
+ * the resulting graph of srcu_structs is acyclic.
*/
void synchronize_srcu_expedited(struct srcu_struct *sp)
{
diff --git a/kernel/sys.c b/kernel/sys.c
index 4070153..888d227 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1706,7 +1706,7 @@
if (arg4 | arg5)
return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
+ if (!capable(CAP_SYS_RESOURCE))
return -EPERM;
if (addr >= TASK_SIZE)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index bec7b5b..f2c5638 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -253,11 +253,13 @@
struct workqueue_struct *system_nrt_wq __read_mostly;
struct workqueue_struct *system_unbound_wq __read_mostly;
struct workqueue_struct *system_freezable_wq __read_mostly;
+struct workqueue_struct *system_nrt_freezable_wq __read_mostly;
EXPORT_SYMBOL_GPL(system_wq);
EXPORT_SYMBOL_GPL(system_long_wq);
EXPORT_SYMBOL_GPL(system_nrt_wq);
EXPORT_SYMBOL_GPL(system_unbound_wq);
EXPORT_SYMBOL_GPL(system_freezable_wq);
+EXPORT_SYMBOL_GPL(system_nrt_freezable_wq);
#define CREATE_TRACE_POINTS
#include <trace/events/workqueue.h>
@@ -3833,8 +3835,11 @@
WQ_UNBOUND_MAX_ACTIVE);
system_freezable_wq = alloc_workqueue("events_freezable",
WQ_FREEZABLE, 0);
+ system_nrt_freezable_wq = alloc_workqueue("events_nrt_freezable",
+ WQ_NON_REENTRANT | WQ_FREEZABLE, 0);
BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq ||
- !system_unbound_wq || !system_freezable_wq);
+ !system_unbound_wq || !system_freezable_wq ||
+ !system_nrt_freezable_wq);
return 0;
}
early_initcall(init_workqueues);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 9739c0b..05037dc 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -931,6 +931,30 @@
Say Y if you want to enable such checks.
+config RCU_CPU_STALL_INFO
+ bool "Print additional diagnostics on RCU CPU stall"
+ depends on (TREE_RCU || TREE_PREEMPT_RCU) && DEBUG_KERNEL
+ default n
+ help
+ For each stalled CPU that is aware of the current RCU grace
+ period, print out additional per-CPU diagnostic information
+ regarding scheduling-clock ticks, idle state, and,
+ for RCU_FAST_NO_HZ kernels, idle-entry state.
+
+ Say N if you are unsure.
+
+ Say Y if you want to enable such diagnostics.
+
+config RCU_TRACE
+ bool "Enable tracing for RCU"
+ depends on DEBUG_KERNEL
+ help
+ This option provides tracing in RCU which presents stats
+ in debugfs for debugging RCU implementation.
+
+ Say Y here if you want to enable RCU tracing
+ Say N if you are unsure.
+
config KPROBES_SANITY_TEST
bool "Kprobes sanity tests"
depends on DEBUG_KERNEL
diff --git a/lib/dynamic_queue_limits.c b/lib/dynamic_queue_limits.c
index 3d1bdcd..6ab4587 100644
--- a/lib/dynamic_queue_limits.c
+++ b/lib/dynamic_queue_limits.c
@@ -7,6 +7,7 @@
#include <linux/types.h>
#include <linux/ctype.h>
#include <linux/kernel.h>
+#include <linux/jiffies.h>
#include <linux/dynamic_queue_limits.h>
#define POSDIFF(A, B) ((A) > (B) ? (A) - (B) : 0)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d0e57a3..58a08fc 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -230,10 +230,30 @@
* the counter to account for memory usage
*/
struct res_counter res;
- /*
- * the counter to account for mem+swap usage.
- */
- struct res_counter memsw;
+
+ union {
+ /*
+ * the counter to account for mem+swap usage.
+ */
+ struct res_counter memsw;
+
+ /*
+ * rcu_freeing is used only when freeing struct mem_cgroup,
+ * so put it into a union to avoid wasting more memory.
+ * It must be disjoint from the css field. It could be
+ * in a union with the res field, but res plays a much
+ * larger part in mem_cgroup life than memsw, and might
+ * be of interest, even at time of free, when debugging.
+ * So share rcu_head with the less interesting memsw.
+ */
+ struct rcu_head rcu_freeing;
+ /*
+ * But when using vfree(), that cannot be done at
+ * interrupt time, so we must then queue the work.
+ */
+ struct work_struct work_freeing;
+ };
+
/*
* Per cgroup active and inactive list, similar to the
* per zone LRU lists.
@@ -4780,6 +4800,27 @@
}
/*
+ * Helpers for freeing a vzalloc()ed mem_cgroup by RCU,
+ * but in process context. The work_freeing structure is overlaid
+ * on the rcu_freeing structure, which itself is overlaid on memsw.
+ */
+static void vfree_work(struct work_struct *work)
+{
+ struct mem_cgroup *memcg;
+
+ memcg = container_of(work, struct mem_cgroup, work_freeing);
+ vfree(memcg);
+}
+static void vfree_rcu(struct rcu_head *rcu_head)
+{
+ struct mem_cgroup *memcg;
+
+ memcg = container_of(rcu_head, struct mem_cgroup, rcu_freeing);
+ INIT_WORK(&memcg->work_freeing, vfree_work);
+ schedule_work(&memcg->work_freeing);
+}
+
+/*
* At destroying mem_cgroup, references from swap_cgroup can remain.
* (scanning all at force_empty is too costly...)
*
@@ -4802,9 +4843,9 @@
free_percpu(memcg->stat);
if (sizeof(struct mem_cgroup) < PAGE_SIZE)
- kfree(memcg);
+ kfree_rcu(memcg, rcu_freeing);
else
- vfree(memcg);
+ call_rcu(&memcg->rcu_freeing, vfree_rcu);
}
static void mem_cgroup_get(struct mem_cgroup *memcg)
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 86f3b88..c48adc5 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1857,11 +1857,6 @@
return CIPSO_V4_HDR_LEN + ret_val;
}
-static void opt_kfree_rcu(struct rcu_head *head)
-{
- kfree(container_of(head, struct ip_options_rcu, rcu));
-}
-
/**
* cipso_v4_sock_setattr - Add a CIPSO option to a socket
* @sk: the socket
@@ -1938,7 +1933,7 @@
}
rcu_assign_pointer(sk_inet->inet_opt, opt);
if (old)
- call_rcu(&old->rcu, opt_kfree_rcu);
+ kfree_rcu(old, rcu);
return 0;
@@ -2005,7 +2000,7 @@
req_inet = inet_rsk(req);
opt = xchg(&req_inet->opt, opt);
if (opt)
- call_rcu(&opt->rcu, opt_kfree_rcu);
+ kfree_rcu(opt, rcu);
return 0;
@@ -2075,7 +2070,7 @@
* remove the entire option struct */
*opt_ptr = NULL;
hdr_delta = opt->opt.optlen;
- call_rcu(&opt->rcu, opt_kfree_rcu);
+ kfree_rcu(opt, rcu);
}
return hdr_delta;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 8aa87c1..5343d9a 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -445,11 +445,6 @@
}
-static void opt_kfree_rcu(struct rcu_head *head)
-{
- kfree(container_of(head, struct ip_options_rcu, rcu));
-}
-
/*
* Socket option code for IP. This is the end of the line after any
* TCP,UDP etc options on an IP socket.
@@ -525,7 +520,7 @@
}
rcu_assign_pointer(inet->inet_opt, opt);
if (old)
- call_rcu(&old->rcu, opt_kfree_rcu);
+ kfree_rcu(old, rcu);
break;
}
case IP_PKTINFO:
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 51fdbb4..eab2a7f 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -278,6 +278,7 @@
struct rtable *rt;
__u8 rcv_wscale;
bool ecn_ok = false;
+ struct flowi4 fl4;
if (!sysctl_tcp_syncookies || !th->ack || th->rst)
goto out;
@@ -346,20 +347,16 @@
* hasn't changed since we received the original syn, but I see
* no easy way to do this.
*/
- {
- struct flowi4 fl4;
-
- flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),
- RT_SCOPE_UNIVERSE, IPPROTO_TCP,
- inet_sk_flowi_flags(sk),
- (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
- ireq->loc_addr, th->source, th->dest);
- security_req_classify_flow(req, flowi4_to_flowi(&fl4));
- rt = ip_route_output_key(sock_net(sk), &fl4);
- if (IS_ERR(rt)) {
- reqsk_free(req);
- goto out;
- }
+ flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),
+ RT_SCOPE_UNIVERSE, IPPROTO_TCP,
+ inet_sk_flowi_flags(sk),
+ (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
+ ireq->loc_addr, th->source, th->dest);
+ security_req_classify_flow(req, flowi4_to_flowi(&fl4));
+ rt = ip_route_output_key(sock_net(sk), &fl4);
+ if (IS_ERR(rt)) {
+ reqsk_free(req);
+ goto out;
}
/* Try to redo what tcp_v4_send_synack did. */
@@ -373,5 +370,10 @@
ireq->rcv_wscale = rcv_wscale;
ret = get_cookie_sock(sk, skb, req, &rt->dst);
+ /* ip_queue_xmit() depends on our flow being setup
+ * Normal sockets get it right from inet_csk_route_child_sock()
+ */
+ if (ret)
+ inet_sk(ret)->cork.fl.u.ip4 = fl4;
out: return ret;
}
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 94d683a..fd54c5f 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1466,9 +1466,13 @@
inet_csk(newsk)->icsk_ext_hdr_len = inet_opt->opt.optlen;
newinet->inet_id = newtp->write_seq ^ jiffies;
- if (!dst && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
- goto put_and_exit;
-
+ if (!dst) {
+ dst = inet_csk_route_child_sock(sk, newsk, req);
+ if (!dst)
+ goto put_and_exit;
+ } else {
+ /* syncookie case : see end of cookie_v4_check() */
+ }
sk_setup_caps(newsk, dst);
tcp_mtup_init(newsk);
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index b853f06..16c33e3 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -257,7 +257,6 @@
if (rt) {
dev = rt->dst.dev;
- dev_hold(dev);
dst_release(&rt->dst);
}
} else
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 8c2e3ab..22b7664 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1077,7 +1077,7 @@
struct net *net = dev_net(dev);
if (unlikely(!idev))
- return NULL;
+ return ERR_PTR(-ENODEV);
rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, dev, 0);
if (unlikely(!rt)) {
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index edf167e..30420bc 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -413,12 +413,6 @@
return NULL;
}
-static void mesh_gate_node_reclaim(struct rcu_head *rp)
-{
- struct mpath_node *node = container_of(rp, struct mpath_node, rcu);
- kfree(node);
-}
-
/**
* mesh_path_add_gate - add the given mpath to a mesh gate to our path table
* @mpath: gate path to add to table
@@ -479,7 +473,7 @@
if (gate->mpath == mpath) {
spin_lock_bh(&tbl->gates_lock);
hlist_del_rcu(&gate->list);
- call_rcu(&gate->rcu, mesh_gate_node_reclaim);
+ kfree_rcu(gate, rcu);
spin_unlock_bh(&tbl->gates_lock);
mpath->sdata->u.mesh.num_gates--;
mpath->is_gate = false;
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 1068769..b49da6c 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -943,20 +943,21 @@
}
}
- if (nf_conntrack_event_report(IPCT_DESTROY, ct,
- NETLINK_CB(skb).pid,
- nlmsg_report(nlh)) < 0) {
+ if (del_timer(&ct->timeout)) {
+ if (nf_conntrack_event_report(IPCT_DESTROY, ct,
+ NETLINK_CB(skb).pid,
+ nlmsg_report(nlh)) < 0) {
+ nf_ct_delete_from_lists(ct);
+ /* we failed to report the event, try later */
+ nf_ct_insert_dying_list(ct);
+ nf_ct_put(ct);
+ return 0;
+ }
+ /* death_by_timeout would report the event again */
+ set_bit(IPS_DYING_BIT, &ct->status);
nf_ct_delete_from_lists(ct);
- /* we failed to report the event, try later */
- nf_ct_insert_dying_list(ct);
nf_ct_put(ct);
- return 0;
}
-
- /* death_by_timeout would report the event again */
- set_bit(IPS_DYING_BIT, &ct->status);
-
- nf_ct_kill(ct);
nf_ct_put(ct);
return 0;
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 60d4718..02a21ab 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -469,11 +469,15 @@
if (slot->qlen == 1) { /* The flow is new */
if (q->tail == NULL) { /* It is the first flow */
slot->next = x;
- q->tail = slot;
} else {
slot->next = q->tail->next;
q->tail->next = x;
}
+ /* We put this flow at the end of our flow list.
+ * This might sound unfair for a new flow to wait after old ones,
+ * but we could endup servicing new flows only, and freeze old ones.
+ */
+ q->tail = slot;
/* We could use a bigger initial quantum for new flows */
slot->allot = q->scaled_quantum;
}
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index fa04340..74fd7f8 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -266,6 +266,8 @@
LIB_H += util/include/dwarf-regs.h
LIB_H += util/include/asm/dwarf2.h
LIB_H += util/include/asm/cpufeature.h
+LIB_H += util/include/asm/unistd_32.h
+LIB_H += util/include/asm/unistd_64.h
LIB_H += perf.h
LIB_H += util/annotate.h
LIB_H += util/cache.h
diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index eba80c2..2f7073d 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -25,7 +25,7 @@
pvr = mfspr(SPRN_PVR);
- nb = snprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));
+ nb = scnprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));
/* look for end marker to ensure the entire data fit */
if (strchr(buffer, '$')) {
diff --git a/tools/perf/arch/x86/util/header.c b/tools/perf/arch/x86/util/header.c
index f940060..146d12a 100644
--- a/tools/perf/arch/x86/util/header.c
+++ b/tools/perf/arch/x86/util/header.c
@@ -48,7 +48,7 @@
if (family >= 0x6)
model += ((a >> 16) & 0xf) << 4;
}
- nb = snprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);
+ nb = scnprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);
/* look for end marker to ensure the entire data fit */
if (strchr(buffer, '$')) {
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index eec392e..89e3355 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -10,6 +10,9 @@
#define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
#define CPUINFO_PROC "model name"
+#ifndef __NR_perf_event_open
+# define __NR_perf_event_open 336
+#endif
#endif
#if defined(__x86_64__)
@@ -17,6 +20,9 @@
#define rmb() asm volatile("lfence" ::: "memory")
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
#define CPUINFO_PROC "model name"
+#ifndef __NR_perf_event_open
+# define __NR_perf_event_open 298
+#endif
#endif
#ifdef __powerpc__
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 521c38a..11e46da 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
#include "cache.h"
#include "color.h"
@@ -182,12 +183,12 @@
}
if (perf_use_color_default && *color)
- r += snprintf(bf, size, "%s", color);
- r += vsnprintf(bf + r, size - r, fmt, args);
+ r += scnprintf(bf, size, "%s", color);
+ r += vscnprintf(bf + r, size - r, fmt, args);
if (perf_use_color_default && *color)
- r += snprintf(bf + r, size - r, "%s", PERF_COLOR_RESET);
+ r += scnprintf(bf + r, size - r, "%s", PERF_COLOR_RESET);
if (trail)
- r += snprintf(bf + r, size - r, "%s", trail);
+ r += scnprintf(bf + r, size - r, "%s", trail);
return r;
}
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 0d9b6da..fcd9cf3 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -291,7 +291,7 @@
if (realname == NULL || filename == NULL || linkname == NULL)
goto out_free;
- len = snprintf(filename, size, "%s%s%s",
+ len = scnprintf(filename, size, "%s%s%s",
debugdir, is_kallsyms ? "/" : "", realname);
if (mkdir_p(filename, 0755))
goto out_free;
@@ -306,7 +306,7 @@
goto out_free;
}
- len = snprintf(linkname, size, "%s/.build-id/%.2s",
+ len = scnprintf(linkname, size, "%s/.build-id/%.2s",
debugdir, sbuild_id);
if (access(linkname, X_OK) && mkdir_p(linkname, 0755))
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 8380c3d..3dc99a9 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -836,7 +836,7 @@
sep ? "%.2f" : " %6.2f%%",
(period * 100.0) / total);
else
- ret = snprintf(s, size, sep ? "%.2f" : " %6.2f%%",
+ ret = scnprintf(s, size, sep ? "%.2f" : " %6.2f%%",
(period * 100.0) / total);
if (symbol_conf.show_cpu_utilization) {
ret += percent_color_snprintf(s + ret, size - ret,
@@ -859,20 +859,20 @@
}
}
} else
- ret = snprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period);
+ ret = scnprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period);
if (symbol_conf.show_nr_samples) {
if (sep)
- ret += snprintf(s + ret, size - ret, "%c%" PRIu64, *sep, nr_events);
+ ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, nr_events);
else
- ret += snprintf(s + ret, size - ret, "%11" PRIu64, nr_events);
+ ret += scnprintf(s + ret, size - ret, "%11" PRIu64, nr_events);
}
if (symbol_conf.show_total_period) {
if (sep)
- ret += snprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);
+ ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);
else
- ret += snprintf(s + ret, size - ret, " %12" PRIu64, period);
+ ret += scnprintf(s + ret, size - ret, " %12" PRIu64, period);
}
if (pair_hists) {
@@ -887,25 +887,25 @@
diff = new_percent - old_percent;
if (fabs(diff) >= 0.01)
- snprintf(bf, sizeof(bf), "%+4.2F%%", diff);
+ ret += scnprintf(bf, sizeof(bf), "%+4.2F%%", diff);
else
- snprintf(bf, sizeof(bf), " ");
+ ret += scnprintf(bf, sizeof(bf), " ");
if (sep)
- ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf);
+ ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
else
- ret += snprintf(s + ret, size - ret, "%11.11s", bf);
+ ret += scnprintf(s + ret, size - ret, "%11.11s", bf);
if (show_displacement) {
if (displacement)
- snprintf(bf, sizeof(bf), "%+4ld", displacement);
+ ret += scnprintf(bf, sizeof(bf), "%+4ld", displacement);
else
- snprintf(bf, sizeof(bf), " ");
+ ret += scnprintf(bf, sizeof(bf), " ");
if (sep)
- ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf);
+ ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
else
- ret += snprintf(s + ret, size - ret, "%6.6s", bf);
+ ret += scnprintf(s + ret, size - ret, "%6.6s", bf);
}
}
@@ -923,7 +923,7 @@
if (se->elide)
continue;
- ret += snprintf(s + ret, size - ret, "%s", sep ?: " ");
+ ret += scnprintf(s + ret, size - ret, "%s", sep ?: " ");
ret += se->se_snprintf(he, s + ret, size - ret,
hists__col_len(hists, se->se_width_idx));
}
diff --git a/tools/perf/util/include/asm/unistd_32.h b/tools/perf/util/include/asm/unistd_32.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/tools/perf/util/include/asm/unistd_32.h
@@ -0,0 +1 @@
+
diff --git a/tools/perf/util/include/asm/unistd_64.h b/tools/perf/util/include/asm/unistd_64.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/tools/perf/util/include/asm/unistd_64.h
@@ -0,0 +1 @@
+
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index b029296..c7a6f6f 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -165,7 +165,7 @@
struct tracepoint_path *path = NULL;
DIR *sys_dir, *evt_dir;
struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
- char id_buf[4];
+ char id_buf[24];
int fd;
u64 id;
char evt_path[MAXPATHLEN];
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 88dbcf6..a272374 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -34,6 +34,9 @@
}
}
va_end(ap);
+
+ if (n >= (int)size)
+ return size - 1;
return n;
}
diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c
index 92e0685..2eeb51b 100644
--- a/tools/perf/util/strbuf.c
+++ b/tools/perf/util/strbuf.c
@@ -1,4 +1,5 @@
#include "cache.h"
+#include <linux/kernel.h>
int prefixcmp(const char *str, const char *prefix)
{
@@ -89,14 +90,14 @@
if (!strbuf_avail(sb))
strbuf_grow(sb, 64);
va_start(ap, fmt);
- len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
+ len = vscnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
va_end(ap);
if (len < 0)
- die("your vsnprintf is broken");
+ die("your vscnprintf is broken");
if (len > strbuf_avail(sb)) {
strbuf_grow(sb, len);
va_start(ap, fmt);
- len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
+ len = vscnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
va_end(ap);
if (len > strbuf_avail(sb)) {
die("this should not happen, your snprintf is broken");
diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c
index de8ece8..fa530fc 100644
--- a/tools/perf/util/ui/browsers/hists.c
+++ b/tools/perf/util/ui/browsers/hists.c
@@ -840,18 +840,18 @@
unsigned long nr_events = self->stats.nr_events[PERF_RECORD_SAMPLE];
nr_events = convert_unit(nr_events, &unit);
- printed = snprintf(bf, size, "Events: %lu%c %s", nr_events, unit, ev_name);
+ printed = scnprintf(bf, size, "Events: %lu%c %s", nr_events, unit, ev_name);
if (self->uid_filter_str)
printed += snprintf(bf + printed, size - printed,
", UID: %s", self->uid_filter_str);
if (thread)
- printed += snprintf(bf + printed, size - printed,
+ printed += scnprintf(bf + printed, size - printed,
", Thread: %s(%d)",
(thread->comm_set ? thread->comm : ""),
thread->pid);
if (dso)
- printed += snprintf(bf + printed, size - printed,
+ printed += scnprintf(bf + printed, size - printed,
", DSO: %s", dso->short_name);
return printed;
}
@@ -1162,7 +1162,7 @@
HE_COLORSET_NORMAL);
nr_events = convert_unit(nr_events, &unit);
- printed = snprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
+ printed = scnprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
unit, unit == ' ' ? "" : " ", ev_name);
slsmg_printf("%s", bf);
@@ -1172,8 +1172,8 @@
if (!current_entry)
ui_browser__set_color(browser, HE_COLORSET_TOP);
nr_events = convert_unit(nr_events, &unit);
- snprintf(bf, sizeof(bf), ": %ld%c%schunks LOST!", nr_events,
- unit, unit == ' ' ? "" : " ");
+ printed += scnprintf(bf, sizeof(bf), ": %ld%c%schunks LOST!",
+ nr_events, unit, unit == ' ' ? "" : " ");
warn = bf;
}
diff --git a/tools/perf/util/ui/helpline.c b/tools/perf/util/ui/helpline.c
index 4f48f59..2f950c2 100644
--- a/tools/perf/util/ui/helpline.c
+++ b/tools/perf/util/ui/helpline.c
@@ -64,7 +64,7 @@
static int backlog;
pthread_mutex_lock(&ui__lock);
- ret = vsnprintf(ui_helpline__last_msg + backlog,
+ ret = vscnprintf(ui_helpline__last_msg + backlog,
sizeof(ui_helpline__last_msg) - backlog, format, ap);
backlog += ret;