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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-07-10 16:57:57 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-11 01:24:05 +0400 |
| commit | d86ee4809d0329d4aa0d0f2c76c2295a16862799 (patch) | |
| tree | 32b3eaf766c1127ef2298c2e48b5441b7cf9b843 /tools/perf/util/callchain.h | |
| parent | c99e6efe1ba04561e7d93a81f0be07e37427e835 (diff) | |
| download | linux-d86ee4809d0329d4aa0d0f2c76c2295a16862799.tar.xz | |
sched: optimize cond_resched()
Optimize cond_resched() by removing one conditional.
Currently cond_resched() checks system_state ==
SYSTEM_RUNNING in order to avoid scheduling before the
scheduler is running.
We can however, as per suggestion of Matt, use
PREEMPT_ACTIVE to accomplish that very same.
Suggested-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/util/callchain.h')
0 files changed, 0 insertions, 0 deletions