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Commit 01f23e16 authored Nov 27, 2011 by Catalin Marinas Committed by Ingo Molnar Mar 13, 2012

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: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Frank Rowand <frank.rowand@am.sony.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Marc Zyngier <Marc.Zyngier@arm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/20120313110840.7b444deb6b1bb902c15f3cdf@canb.auug.org.au


Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent fde7d904

kernel/sched/core.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1932,6 +1932,7 @@ static void finish_task_switch(struct rq rq, struct task_struct prev)
	local_irq_enable();		local_irq_enable();
	#endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */		#endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */
	finish_lock_switch(rq, prev);		finish_lock_switch(rq, prev);
			finish_arch_post_lock_switch();

	fire_sched_in_preempt_notifiers(current);		fire_sched_in_preempt_notifiers(current);
	if (mm)		if (mm)

kernel/sched/sched.h

+3 −0

Original line number	Original line	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		#ifndef finish_arch_switch
	# define finish_arch_switch(prev) do { } while (0)		# define finish_arch_switch(prev) do { } while (0)
	#endif		#endif
			#ifndef finish_arch_post_lock_switch
			# define finish_arch_post_lock_switch() do { } while (0)
			#endif

	#ifndef __ARCH_WANT_UNLOCKED_CTXSW		#ifndef __ARCH_WANT_UNLOCKED_CTXSW
	static inline void prepare_lock_switch(struct rq rq, struct task_struct next)		static inline void prepare_lock_switch(struct rq rq, struct task_struct next)