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authorCatalin Marinas <[email protected]>2011-11-27 21:43:10 +0000
committerIngo Molnar <[email protected]>2012-03-13 10:17:45 +0100
commit01f23e1630d944f7085cd8fd5793e31ea91c03d8 (patch)
treef21651af720e87721c3829ff69a41c5a9d8cb31d
parentfde7d9049e55ab85a390be7f415d74c9f62dd0f9 (diff)
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 <[email protected]> Reviewed-by: Will Deacon <[email protected]> Reviewed-by: Frank Rowand <[email protected]> Tested-by: Will Deacon <[email protected]> Tested-by: Marc Zyngier <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
-rw-r--r--kernel/sched/core.c1
-rw-r--r--kernel/sched/sched.h3
2 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b342f57879e6..423f40f32a59 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -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)
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 98c0c2623db8..d72483d07c9f 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)