Commit 01f23e16 authored by Catalin Marinas's avatar Catalin Marinas Committed by Ingo Molnar
Browse files

sched/arch: Introduce the finish_arch_post_lock_switch() scheduler callback 



This callback 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.

Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Reviewed-by: default avatarWill Deacon <will.deacon@arm.com>
Reviewed-by: default avatarFrank Rowand <frank.rowand@am.sony.com>
Tested-by: default avatarWill Deacon <will.deacon@arm.com>
Tested-by: default avatarMarc Zyngier <Marc.Zyngier@arm.com>
Acked-by: default avatarPeter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/20120313110840.7b444deb6b1bb902c15f3cdf@canb.auug.org.au


Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent fde7d904

kernel/sched/core.c

+1 −0
Original line number Diff line number Diff line
@@ -1932,6 +1932,7 @@ 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();



	fire_sched_in_preempt_notifiers(current);

	if (mm)

kernel/sched/sched.h

+3 −0
Original line number Diff line number Diff line
@@ -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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