Messages in this thread Patch in this message | | | Subject | Re: [PATCH v3 1/6] sched: Introduce the finish_arch_post_lock_switch() scheduler hook | From | Peter Zijlstra <> | Date | Mon, 27 Feb 2012 15:48:13 +0100 |
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On Fri, 2012-01-20 at 17:42 +0000, Catalin Marinas wrote: > This hook is called by the scheduler after rq->lock has been released > and interrupts enabled. It will be used in subsequent patches on the ARM > architecture. > > Reviewed-by: Will Deacon <will.deacon@arm.com> > Reviewed-by: Frank Rowand <frank.rowand@am.sony.com> > Cc: Russell King <linux@arm.linux.org.uk> > Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Peter Zijlstra <peterz@infradead.org>
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> > --- > kernel/sched/core.c | 1 + > kernel/sched/sched.h | 3 +++ > 2 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index df00cb0..f1db6d8 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -1937,6 +1937,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev) > local_irq_enable(); > #endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */ > finish_lock_switch(rq, prev); > + finish_arch_post_lock_switch(); > trace_sched_stat_sleeptime(current, rq->clock); > > fire_sched_in_preempt_notifiers(current); > diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h > index 98c0c26..d72483d 100644 > --- a/kernel/sched/sched.h > +++ b/kernel/sched/sched.h > @@ -692,6 +692,9 @@ static inline int task_running(struct rq *rq, struct task_struct *p) > #ifndef finish_arch_switch > # define finish_arch_switch(prev) do { } while (0) > #endif > +#ifndef finish_arch_post_lock_switch > +# define finish_arch_post_lock_switch() do { } while (0) > +#endif > > #ifndef __ARCH_WANT_UNLOCKED_CTXSW > static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next) >
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