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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-18 05:12:48 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-05-18 12:35:49 -0400 |
| commit | 6d1acfd5c6bfd5231c13a8f2858d7f2afbaa1b62 (patch) | |
| tree | abcfa95947cafc94c978a255b814472fe67cad22 /kernel/rtmutex.h | |
| parent | fa5881514ef9c9bcb29319aad85cf2d8889d91f1 (diff) | |
perf: Optimize perf_output_*() by avoiding local_xchg()
Since the x86 XCHG ins implies LOCK, avoid the use by
using a sequence count instead.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rtmutex.h')
0 files changed, 0 insertions, 0 deletions