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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-07-10 16:57:57 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-11 01:24:05 +0400
commitd86ee4809d0329d4aa0d0f2c76c2295a16862799 (patch)
tree32b3eaf766c1127ef2298c2e48b5441b7cf9b843 /tools/perf/perf.h
parentc99e6efe1ba04561e7d93a81f0be07e37427e835 (diff)
downloadlinux-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>
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