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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 09:36:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 09:36:54 -0700 |
| commit | 6832d9652f395f7d13003e3884942c40f52ac1fa (patch) | |
| tree | 40555ad5eda9700cb973dac4db136ad97f5e8b19 /kernel/sched/core.c | |
| parent | 228abe73ad67665d71eacd6a8a347dd76b0115ae (diff) | |
| parent | c2e7fcf53c3cb02b4ada1c66a9bc8a4d97d58aba (diff) | |
| download | blackbird-obmc-linux-6832d9652f395f7d13003e3884942c40f52ac1fa.tar.gz blackbird-obmc-linux-6832d9652f395f7d13003e3884942c40f52ac1fa.zip | |
Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timers/nohz changes from Ingo Molnar:
"It mostly contains fixes and full dynticks off-case optimizations, by
Frederic Weisbecker"
* 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
nohz: Include local CPU in full dynticks global kick
nohz: Optimize full dynticks's sched hooks with static keys
nohz: Optimize full dynticks state checks with static keys
nohz: Rename a few state variables
vtime: Always debug check snapshot source _before_ updating it
vtime: Always scale generic vtime accounting results
vtime: Optimize full dynticks accounting off case with static keys
vtime: Describe overriden functions in dedicated arch headers
m68k: hardirq_count() only need preempt_mask.h
hardirq: Split preempt count mask definitions
context_tracking: Split low level state headers
vtime: Fix racy cputime delta update
vtime: Remove a few unneeded generic vtime state checks
context_tracking: User/kernel broundary cross trace events
context_tracking: Optimize context switch off case with static keys
context_tracking: Optimize guest APIs off case with static key
context_tracking: Optimize main APIs off case with static key
context_tracking: Ground setup for static key use
context_tracking: Remove full dynticks' hacky dependency on wide context tracking
nohz: Only enable context tracking on full dynticks CPUs
...
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index b8e2162fc803..725aa067ad63 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2527,13 +2527,11 @@ void __sched schedule_preempt_disabled(void) */ asmlinkage void __sched notrace preempt_schedule(void) { - struct thread_info *ti = current_thread_info(); - /* * If there is a non-zero preempt_count or interrupts are disabled, * we do not want to preempt the current task. Just return.. */ - if (likely(ti->preempt_count || irqs_disabled())) + if (likely(!preemptible())) return; do { |
