[RFC PATCH 1/6] sched: Introduce the finish_arch_post_lock_switch() scheduler hook
From: catalin.marinas@arm.com (Catalin Marinas)
Date: 2011-11-29 12:22:51
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <redacted> Cc: Ingo Molnar <redacted> Cc: Peter Zijlstra <peterz@infradead.org> --- kernel/sched.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index 0e9344a..7b46a39 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c@@ -983,6 +983,9 @@ static inline u64 global_rt_runtime(void) #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 static inline int task_current(struct rq *rq, struct task_struct *p) {
@@ -3203,6 +3206,7 @@ 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)