Commit-ID: 01f23e1630d944f7085cd8fd5793e31ea91c03d8
Gitweb: http://git.kernel.org/tip/01f23e1630d944f7085cd8fd5793e31ea91c03d8
Author: Catalin Marinas <catalin.marinas@xxxxxxx>
AuthorDate: Sun, 27 Nov 2011 21:43:10 +0000
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 13 Mar 2012 10:17:45 +0100
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@xxxxxxx>
Reviewed-by: Will Deacon <will.deacon@xxxxxxx>
Reviewed-by: Frank Rowand <frank.rowand@xxxxxxxxxxx>
Tested-by: Will Deacon <will.deacon@xxxxxxx>
Tested-by: Marc Zyngier <Marc.Zyngier@xxxxxxx>
Acked-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/n/20120313110840.7b444deb6b1bb902c15f3cdf@xxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
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 b342f57..423f40f 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 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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