tree 8577c0c004fb30844739b66086368fcecd09ef5b
parent f7556698a36995a755a4ce154953dcf438145b3b
parent c4602c1c818bd6626178d6d3fcc152d9f2f48ac0
author Linus Torvalds <torvalds@linux-foundation.org> 1387560750 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1387560750 -0800
mergetag object c4602c1c818bd6626178d6d3fcc152d9f2f48ac0
 type commit
 tag trace-fixes-v3.13-rc2
 tagger Steven Rostedt <rostedt@rostedt.homelinux.com> 1387319143 -0500
 
 This fixes a long standing bug in the ftrace profiler.
 The problem is that the profiler only initializes the online
 CPUs, and not possible CPUs. This causes issues if the user takes
 CPUs online or offline while the profiler is running.
 
 If we online a CPU after starting the profiler, we lose all the
 trace information on the CPU going online.
 
 If we offline a CPU after running a test and start a new test, it
 will not clear the old data from that CPU.
 
 This bug causes incorrect data to be reported to the user if they
 online or offline CPUs during the profiling.
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Merge tag 'trace-fixes-v3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull ftrace fix from Steven Rostedt:
 "This fixes a long standing bug in the ftrace profiler.  The problem is
  that the profiler only initializes the online CPUs, and not possible
  CPUs.  This causes issues if the user takes CPUs online or offline
  while the profiler is running.

  If we online a CPU after starting the profiler, we lose all the trace
  information on the CPU going online.

  If we offline a CPU after running a test and start a new test, it will
  not clear the old data from that CPU.

  This bug causes incorrect data to be reported to the user if they
  online or offline CPUs during the profiling"

* tag 'trace-fixes-v3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftrace: Initialize the ftrace profiler for each possible cpu