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Roman Zippelface4372006-06-08 22:12:45 -07001config DEFCONFIG_LIST
2 string
Paolo 'Blaisorblade' Giarrussob2670eac2006-10-19 23:28:23 -07003 depends on !UML
Roman Zippelface4372006-06-08 22:12:45 -07004 option defconfig_list
5 default "/lib/modules/$UNAME_RELEASE/.config"
6 default "/etc/kernel-config"
7 default "/boot/config-$UNAME_RELEASE"
8 default "arch/$ARCH/defconfig"
9
Linus Torvalds1da177e2005-04-16 15:20:36 -070010menu "Code maturity level options"
11
12config EXPERIMENTAL
13 bool "Prompt for development and/or incomplete code/drivers"
14 ---help---
15 Some of the various things that Linux supports (such as network
16 drivers, file systems, network protocols, etc.) can be in a state
17 of development where the functionality, stability, or the level of
18 testing is not yet high enough for general use. This is usually
19 known as the "alpha-test" phase among developers. If a feature is
20 currently in alpha-test, then the developers usually discourage
21 uninformed widespread use of this feature by the general public to
22 avoid "Why doesn't this work?" type mail messages. However, active
23 testing and use of these systems is welcomed. Just be aware that it
24 may not meet the normal level of reliability or it may fail to work
25 in some special cases. Detailed bug reports from people familiar
26 with the kernel internals are usually welcomed by the developers
27 (before submitting bug reports, please read the documents
28 <file:README>, <file:MAINTAINERS>, <file:REPORTING-BUGS>,
29 <file:Documentation/BUG-HUNTING>, and
30 <file:Documentation/oops-tracing.txt> in the kernel source).
31
32 This option will also make obsoleted drivers available. These are
33 drivers that have been replaced by something else, and/or are
34 scheduled to be removed in a future kernel release.
35
36 Unless you intend to help test and develop a feature or driver that
37 falls into this category, or you have a situation that requires
38 using these features, you should probably say N here, which will
39 cause the configurator to present you with fewer choices. If
40 you say Y here, you will be offered the choice of using features or
41 drivers that are currently considered to be in the alpha-test phase.
42
Linus Torvalds1da177e2005-04-16 15:20:36 -070043config BROKEN
44 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
46config BROKEN_ON_SMP
47 bool
48 depends on BROKEN || !SMP
49 default y
50
51config LOCK_KERNEL
52 bool
53 depends on SMP || PREEMPT
54 default y
55
56config INIT_ENV_ARG_LIMIT
57 int
Adrian Bunkdd673bc2006-06-30 01:55:51 -070058 default 32 if !UML
59 default 128 if UML
Linus Torvalds1da177e2005-04-16 15:20:36 -070060 help
Randy Dunlap34ad92c2005-10-30 15:01:46 -080061 Maximum of each of the number of arguments and environment
62 variables passed to init from the kernel command line.
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
64endmenu
65
66menu "General setup"
67
68config LOCALVERSION
69 string "Local version - append to kernel release"
70 help
71 Append an extra string to the end of your kernel version.
72 This will show up when you type uname, for example.
73 The string you set here will be appended after the contents of
74 any files with a filename matching localversion* in your
75 object and source tree, in that order. Your total string can
76 be a maximum of 64 characters.
77
Ryan Andersonaaebf432005-07-31 04:57:49 -040078config LOCALVERSION_AUTO
79 bool "Automatically append version information to the version string"
80 default y
81 help
82 This will try to automatically determine if the current tree is a
83 release tree by looking for git tags that
84 belong to the current top of tree revision.
85
86 A string of the format -gxxxxxxxx will be added to the localversion
87 if a git based tree is found. The string generated by this will be
88 appended after any matching localversion* files, and after the value
89 set in CONFIG_LOCALVERSION
90
91 Note: This requires Perl, and a git repository, but not necessarily
92 the git or cogito tools to be installed.
93
Linus Torvalds1da177e2005-04-16 15:20:36 -070094config SWAP
95 bool "Support for paging of anonymous memory (swap)"
David Howells93614012006-09-30 20:45:40 +020096 depends on MMU && BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 default y
98 help
99 This option allows you to choose whether you want to have support
Jesper Juhl92c35042006-01-15 02:40:08 +0100100 for so called swap devices or swap files in your kernel that are
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 used to provide more virtual memory than the actual RAM present
102 in your computer. If unsure say Y.
103
104config SYSVIPC
105 bool "System V IPC"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 ---help---
107 Inter Process Communication is a suite of library functions and
108 system calls which let processes (running programs) synchronize and
109 exchange information. It is generally considered to be a good thing,
110 and some programs won't run unless you say Y here. In particular, if
111 you want to run the DOS emulator dosemu under Linux (read the
112 DOSEMU-HOWTO, available from <http://www.tldp.org/docs.html#howto>),
113 you'll need to say Y here.
114
115 You can find documentation about IPC with "info ipc" and also in
116 section 6.4 of the Linux Programmer's Guide, available from
117 <http://www.tldp.org/guides.html>.
118
Kirill Korotaev25b21cb2006-10-02 02:18:19 -0700119config IPC_NS
120 bool "IPC Namespaces"
121 depends on SYSVIPC
122 default n
123 help
124 Support ipc namespaces. This allows containers, i.e. virtual
125 environments, to use ipc namespaces to provide different ipc
126 objects for different servers. If unsure, say N.
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128config POSIX_MQUEUE
129 bool "POSIX Message Queues"
130 depends on NET && EXPERIMENTAL
131 ---help---
132 POSIX variant of message queues is a part of IPC. In POSIX message
133 queues every message has a priority which decides about succession
134 of receiving it by a process. If you want to compile and run
135 programs written e.g. for Solaris with use of its POSIX message
136 queues (functions mq_*) say Y here. To use this feature you will
137 also need mqueue library, available from
138 <http://www.mat.uni.torun.pl/~wrona/posix_ipc/>
139
140 POSIX message queues are visible as a filesystem called 'mqueue'
141 and can be mounted somewhere if you want to do filesystem
142 operations on message queues.
143
144 If unsure, say Y.
145
146config BSD_PROCESS_ACCT
147 bool "BSD Process Accounting"
148 help
149 If you say Y here, a user level program will be able to instruct the
150 kernel (via a special system call) to write process accounting
151 information to a file: whenever a process exits, information about
152 that process will be appended to the file by the kernel. The
153 information includes things such as creation time, owning user,
154 command name, memory usage, controlling terminal etc. (the complete
155 list is in the struct acct in <file:include/linux/acct.h>). It is
156 up to the user level program to do useful things with this
157 information. This is generally a good idea, so say Y.
158
159config BSD_PROCESS_ACCT_V3
160 bool "BSD Process Accounting version 3 file format"
161 depends on BSD_PROCESS_ACCT
162 default n
163 help
164 If you say Y here, the process accounting information is written
165 in a new file format that also logs the process IDs of each
166 process and it's parent. Note that this file format is incompatible
167 with previous v0/v1/v2 file formats, so you will need updated tools
168 for processing it. A preliminary version of these tools is available
169 at <http://www.physik3.uni-rostock.de/tim/kernel/utils/acct/>.
170
Shailabh Nagarc7572492006-07-14 00:24:40 -0700171config TASKSTATS
172 bool "Export task/process statistics through netlink (EXPERIMENTAL)"
173 depends on NET
174 default n
175 help
176 Export selected statistics for tasks/processes through the
177 generic netlink interface. Unlike BSD process accounting, the
178 statistics are available during the lifetime of tasks/processes as
179 responses to commands. Like BSD accounting, they are sent to user
180 space on task exit.
181
182 Say N if unsure.
183
Shailabh Nagarca74e922006-07-14 00:24:36 -0700184config TASK_DELAY_ACCT
185 bool "Enable per-task delay accounting (EXPERIMENTAL)"
Shailabh Nagar6f449932006-07-14 00:24:41 -0700186 depends on TASKSTATS
Shailabh Nagarca74e922006-07-14 00:24:36 -0700187 help
188 Collect information on time spent by a task waiting for system
189 resources like cpu, synchronous block I/O completion and swapping
190 in pages. Such statistics can help in setting a task's priorities
191 relative to other tasks for cpu, io, rss limits etc.
192
193 Say N if unsure.
194
Serge E. Hallyn4865ecf2006-10-02 02:18:14 -0700195config UTS_NS
196 bool "UTS Namespaces"
197 default n
198 help
199 Support uts namespaces. This allows containers, i.e.
200 vservers, to use uts namespaces to provide different
201 uts info for different servers. If unsure, say N.
202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203config AUDIT
204 bool "Auditing support"
Chris Wright804a6a492005-05-11 10:52:45 +0100205 depends on NET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 help
207 Enable auditing infrastructure that can be used with another
208 kernel subsystem, such as SELinux (which requires this for
209 logging of avc messages output). Does not do system-call
210 auditing without CONFIG_AUDITSYSCALL.
211
212config AUDITSYSCALL
213 bool "Enable system-call auditing support"
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -0800214 depends on AUDIT && (X86 || PPC || PPC64 || S390 || IA64 || UML || SPARC64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215 default y if SECURITY_SELINUX
216 help
217 Enable low-overhead system-call auditing infrastructure that
218 can be used independently or with another kernel subsystem,
Amy Griffisf368c07d2006-04-07 16:55:56 -0400219 such as SELinux. To use audit's filesystem watch feature, please
220 ensure that INOTIFY is configured.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222config IKCONFIG
Ross Birof2443ab2006-09-30 23:27:25 -0700223 tristate "Kernel .config support"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 ---help---
225 This option enables the complete Linux kernel ".config" file
226 contents to be saved in the kernel. It provides documentation
227 of which kernel options are used in a running kernel or in an
228 on-disk kernel. This information can be extracted from the kernel
229 image file with the script scripts/extract-ikconfig and used as
230 input to rebuild the current kernel or to build another kernel.
231 It can also be extracted from a running kernel by reading
232 /proc/config.gz if enabled (below).
233
234config IKCONFIG_PROC
235 bool "Enable access to .config through /proc/config.gz"
236 depends on IKCONFIG && PROC_FS
237 ---help---
238 This option enables access to the kernel configuration file
239 through /proc/config.gz.
240
241config CPUSETS
242 bool "Cpuset support"
243 depends on SMP
244 help
Randy Dunlapd9fd8a62005-07-27 11:45:11 -0700245 This option will let you create and manage CPUSETs which
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 allow dynamically partitioning a system into sets of CPUs and
247 Memory Nodes and assigning tasks to run only within those sets.
248 This is primarily useful on large SMP or NUMA systems.
249
250 Say N if unsure.
251
Kay Sievers88a22c92006-09-14 11:23:28 +0200252config SYSFS_DEPRECATED
253 bool "Create deprecated sysfs files"
254 default y
255 help
256 This option creates deprecated symlinks such as the
257 "device"-link, the <subsystem>:<name>-link, and the
258 "bus"-link. It may also add deprecated key in the
259 uevent environment.
260 None of these features or values should be used today, as
261 they export driver core implementation details to userspace
262 or export properties which can't be kept stable across kernel
263 releases.
264
265 If enabled, this option will also move any device structures
266 that belong to a class, back into the /sys/class heirachy, in
267 order to support older versions of udev.
268
269 If you are using a distro that was released in 2006 or later,
270 it should be safe to say N here.
271
Jens Axboeb86ff9812006-03-23 19:56:55 +0100272config RELAY
273 bool "Kernel->user space relay support (formerly relayfs)"
274 help
275 This option enables support for relay interface support in
276 certain file systems (such as debugfs).
277 It is designed to provide an efficient mechanism for tools and
278 facilities to relay large amounts of data from kernel space to
279 user space.
280
281 If unsure, say N.
282
Jean-Paul Samanc33df4e2007-02-10 01:44:43 -0800283if BLK_DEV_INITRD
284
Sam Ravnborgdbec4862005-08-10 20:44:50 +0200285source "usr/Kconfig"
286
Jean-Paul Samanc33df4e2007-02-10 01:44:43 -0800287endif
288
Linus Torvaldsc45b4f12005-12-14 18:52:21 -0800289config CC_OPTIMIZE_FOR_SIZE
290 bool "Optimize for size (Look out for broken compilers!)"
291 default y
292 depends on ARM || H8300 || EXPERIMENTAL
Linus Torvaldsc45b4f12005-12-14 18:52:21 -0800293 help
294 Enabling this option will pass "-Os" instead of "-O2" to gcc
295 resulting in a smaller kernel.
296
297 WARNING: some versions of gcc may generate incorrect code with this
298 option. If problems are observed, a gcc upgrade may be needed.
299
300 If unsure, say N.
301
Jay Lan9acc1852006-09-30 23:28:58 -0700302config TASK_XACCT
303 bool "Enable extended accounting over taskstats (EXPERIMENTAL)"
304 depends on TASKSTATS
305 help
306 Collect extended task accounting data and send the data
307 to userland for processing over the taskstats interface.
308
309 Say N if unsure.
310
Andrew Morton7c3ab732006-12-10 02:19:19 -0800311config TASK_IO_ACCOUNTING
312 bool "Enable per-task storage I/O accounting (EXPERIMENTAL)"
313 depends on TASK_XACCT
314 help
315 Collect information on the number of bytes of storage I/O which this
316 task has caused.
317
318 Say N if unsure.
319
Randy Dunlap08470622006-09-30 23:28:13 -0700320config SYSCTL
321 bool
322
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323menuconfig EMBEDDED
324 bool "Configure standard kernel features (for small systems)"
325 help
326 This option allows certain base kernel options and settings
327 to be disabled or tweaked. This is for specialized
328 environments which can tolerate a "non-standard" kernel.
329 Only use this if you really know what you are doing.
330
Chuck Ebbertae81f9e2006-09-16 12:15:53 -0700331config UID16
332 bool "Enable 16-bit UID system calls" if EMBEDDED
333 depends on ARM || CRIS || FRV || H8300 || X86_32 || M68K || (S390 && !64BIT) || SUPERH || SPARC32 || (SPARC64 && SPARC32_COMPAT) || UML || (X86_64 && IA32_EMULATION)
334 default y
335 help
336 This enables the legacy 16-bit UID syscall wrappers.
337
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700338config SYSCTL_SYSCALL
Randy Dunlap08470622006-09-30 23:28:13 -0700339 bool "Sysctl syscall support" if EMBEDDED
Eric W. Biederman13bb7e32006-11-08 17:44:51 -0800340 default y
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700341 select SYSCTL
342 ---help---
Eric W. Biederman13bb7e32006-11-08 17:44:51 -0800343 sys_sysctl uses binary paths that have been found challenging
344 to properly maintain and use. The interface in /proc/sys
345 using paths with ascii names is now the primary path to this
346 information.
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700347
Eric W. Biederman13bb7e32006-11-08 17:44:51 -0800348 Almost nothing using the binary sysctl interface so if you are
349 trying to save some space it is probably safe to disable this,
350 making your kernel marginally smaller.
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700351
Eric W. Biederman13bb7e32006-11-08 17:44:51 -0800352 If unsure say Y here.
Chuck Ebbertae81f9e2006-09-16 12:15:53 -0700353
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354config KALLSYMS
Jesper Juhl979c6a12006-12-12 19:25:11 +0100355 bool "Load all symbols for debugging/ksymoops" if EMBEDDED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356 default y
357 help
358 Say Y here to let the kernel print out symbolic crash information and
359 symbolic stack backtraces. This increases the size of the kernel
360 somewhat, as all symbols have to be loaded into the kernel image.
361
362config KALLSYMS_ALL
363 bool "Include all symbols in kallsyms"
364 depends on DEBUG_KERNEL && KALLSYMS
365 help
366 Normally kallsyms only contains the symbols of functions, for nicer
367 OOPS messages. Some debuggers can use kallsyms for other
Jesper Juhlf9f97bc2005-07-20 05:43:05 +0200368 symbols too: say Y here to include all symbols, if you need them
369 and you don't care about adding 300k to the size of your kernel.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370
371 Say N.
372
373config KALLSYMS_EXTRA_PASS
374 bool "Do an extra kallsyms pass"
375 depends on KALLSYMS
376 help
377 If kallsyms is not working correctly, the build will fail with
378 inconsistent kallsyms data. If that occurs, log a bug report and
379 turn on KALLSYMS_EXTRA_PASS which should result in a stable build.
380 Always say N here unless you find a bug in kallsyms, which must be
381 reported. KALLSYMS_EXTRA_PASS is only a temporary workaround while
382 you wait for kallsyms to be fixed.
383
Matt Mackalld59745c2005-05-01 08:59:02 -0700384
Greg Kroah-Hartman712f47c2005-11-16 11:27:07 -0800385config HOTPLUG
386 bool "Support for hot-pluggable devices" if EMBEDDED
387 default y
388 help
389 This option is provided for the case where no hotplug or uevent
390 capabilities is wanted by the kernel. You should only consider
391 disabling this option for embedded systems that do not use modules, a
392 dynamic /dev tree, or dynamic device discovery. Just say Y.
393
Matt Mackalld59745c2005-05-01 08:59:02 -0700394config PRINTK
395 default y
396 bool "Enable support for printk" if EMBEDDED
397 help
398 This option enables normal printk support. Removing it
399 eliminates most of the message strings from the kernel image
400 and makes the kernel more or less silent. As this makes it
401 very difficult to diagnose system problems, saying N here is
402 strongly discouraged.
403
Matt Mackallc8538a72005-05-01 08:59:01 -0700404config BUG
405 bool "BUG() support" if EMBEDDED
406 default y
407 help
408 Disabling this option eliminates support for BUG and WARN, reducing
409 the size of your kernel image and potentially quietly ignoring
410 numerous fatal conditions. You should only consider disabling this
411 option for embedded systems with no facilities for reporting errors.
412 Just say Y.
413
Matt Mackall708e9a72006-01-08 01:05:25 -0800414config ELF_CORE
415 default y
416 bool "Enable ELF core dumps" if EMBEDDED
417 help
418 Enable support for generating core dumps. Disabling saves about 4k.
419
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420config BASE_FULL
421 default y
422 bool "Enable full-sized data structures for core" if EMBEDDED
423 help
424 Disabling this option reduces the size of miscellaneous core
425 kernel data structures. This saves memory on small machines,
426 but may reduce performance.
427
428config FUTEX
429 bool "Enable futex support" if EMBEDDED
430 default y
Ingo Molnar23f78d4a2006-06-27 02:54:53 -0700431 select RT_MUTEXES
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 help
433 Disabling this option will cause the kernel to be built without
434 support for "fast userspace mutexes". The resulting kernel may not
435 run glibc-based applications correctly.
436
437config EPOLL
438 bool "Enable eventpoll support" if EMBEDDED
439 default y
440 help
441 Disabling this option will cause the kernel to be built without
442 support for epoll family of system calls.
443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444config SHMEM
445 bool "Use full shmem filesystem" if EMBEDDED
446 default y
447 depends on MMU
448 help
449 The shmem is an internal filesystem used to manage shared memory.
450 It is backed by swap and manages resource limits. It is also exported
451 to userspace as tmpfs if TMPFS is enabled. Disabling this
452 option replaces shmem and tmpfs with the much simpler ramfs code,
453 which may be appropriate on small systems without swap.
454
Matt Mackall10cef602006-01-08 01:01:45 -0800455config SLAB
456 default y
Yasunori Goto561ccd32006-12-22 01:09:44 -0800457 bool "Use full SLAB allocator" if (EMBEDDED && !SMP && !SPARSEMEM)
Matt Mackall10cef602006-01-08 01:01:45 -0800458 help
459 Disabling this replaces the advanced SLAB allocator and
460 kmalloc support with the drastically simpler SLOB allocator.
461 SLOB is more space efficient but does not scale well and is
462 more susceptible to fragmentation.
463
Christoph Lameterf8891e52006-06-30 01:55:45 -0700464config VM_EVENT_COUNTERS
465 default y
466 bool "Enable VM event counters for /proc/vmstat" if EMBEDDED
467 help
Paul Jackson2aea4fb2006-12-22 01:06:10 -0800468 VM event counters are needed for event counts to be shown.
469 This option allows the disabling of the VM event counters
470 on EMBEDDED systems. /proc/vmstat will only show page counts
471 if VM event counters are disabled.
Christoph Lameterf8891e52006-06-30 01:55:45 -0700472
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473endmenu # General setup
474
Chuck Ebbertae81f9e2006-09-16 12:15:53 -0700475config RT_MUTEXES
476 boolean
477 select PLIST
478
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479config TINY_SHMEM
480 default !SHMEM
481 bool
482
483config BASE_SMALL
484 int
485 default 0 if BASE_FULL
486 default 1 if !BASE_FULL
487
Matt Mackall10cef602006-01-08 01:01:45 -0800488config SLOB
489 default !SLAB
490 bool
491
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492menu "Loadable module support"
493
494config MODULES
495 bool "Enable loadable module support"
496 help
497 Kernel modules are small pieces of compiled code which can
498 be inserted in the running kernel, rather than being
499 permanently built into the kernel. You use the "modprobe"
500 tool to add (and sometimes remove) them. If you say Y here,
501 many parts of the kernel can be built as modules (by
502 answering M instead of Y where indicated): this is most
503 useful for infrequently used options which are not required
504 for booting. For more information, see the man pages for
505 modprobe, lsmod, modinfo, insmod and rmmod.
506
507 If you say Y here, you will need to run "make
508 modules_install" to put the modules under /lib/modules/
509 where modprobe can find them (you may need to be root to do
510 this).
511
512 If unsure, say Y.
513
514config MODULE_UNLOAD
515 bool "Module unloading"
516 depends on MODULES
517 help
518 Without this option you will not be able to unload any
519 modules (note that some modules may not be unloadable
520 anyway), which makes your kernel slightly smaller and
521 simpler. If unsure, say Y.
522
523config MODULE_FORCE_UNLOAD
524 bool "Forced module unloading"
525 depends on MODULE_UNLOAD && EXPERIMENTAL
526 help
527 This option allows you to force a module to unload, even if the
528 kernel believes it is unsafe: the kernel will remove the module
529 without waiting for anyone to stop using it (using the -f option to
530 rmmod). This is mainly for kernel developers and desperate users.
531 If unsure, say N.
532
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533config MODVERSIONS
Sam Ravnborg0d541642005-12-26 23:04:02 +0100534 bool "Module versioning support"
535 depends on MODULES
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 help
537 Usually, you have to use modules compiled with your kernel.
538 Saying Y here makes it sometimes possible to use modules
539 compiled for different kernels, by adding enough information
540 to the modules to (hopefully) spot any changes which would
541 make them incompatible with the kernel you are running. If
542 unsure, say N.
543
544config MODULE_SRCVERSION_ALL
545 bool "Source checksum for all modules"
546 depends on MODULES
547 help
548 Modules which contain a MODULE_VERSION get an extra "srcversion"
549 field inserted into their modinfo section, which contains a
550 sum of the source files which made it. This helps maintainers
551 see exactly which source was used to build a module (since
552 others sometimes change the module source without updating
553 the version). With this option, such a "srcversion" field
554 will be created for all modules. If unsure, say N.
555
556config KMOD
557 bool "Automatic kernel module loading"
558 depends on MODULES
559 help
560 Normally when you have selected some parts of the kernel to
561 be created as kernel modules, you must load them (using the
562 "modprobe" command) before you can use them. If you say Y
563 here, some parts of the kernel will be able to load modules
564 automatically: when a part of the kernel needs a module, it
565 runs modprobe with the appropriate arguments, thereby
566 loading the module if it is available. If unsure, say Y.
567
568config STOP_MACHINE
569 bool
570 default y
571 depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
572 help
573 Need stop_machine() primitive.
574endmenu
Jens Axboe3a65dfe2005-11-04 08:43:35 +0100575
576menu "Block layer"
577source "block/Kconfig"
578endmenu