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authorFrederic Weisbecker <fweisbec@gmail.com>2013-04-12 01:51:02 +0200
committerIngo Molnar <mingo@kernel.org>2013-05-28 09:40:27 +0200
commit78becc27097585c6aec7043834cadde950ae79f2 (patch)
tree3e8f0982faa2a456c1c68fa5e5a4c7c815194ae4 /kernel/sched/stats.h
parent1a55af2e45cce0ff13bc33c8ee99da84e188b615 (diff)
sched: Use an accessor to read the rq clock
Read the runqueue clock through an accessor. This prepares for adding a debugging infrastructure to detect missing or redundant calls to update_rq_clock() between a scheduler's entry and exit point. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Turner <pjt@google.com> Cc: Mike Galbraith <efault@gmx.de> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1365724262-20142-6-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/stats.h')
-rw-r--r--kernel/sched/stats.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index 2ef90a51ec5e..17d7065c3872 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -61,7 +61,7 @@ static inline void sched_info_reset_dequeued(struct task_struct *t)
*/
static inline void sched_info_dequeued(struct task_struct *t)
{
- unsigned long long now = task_rq(t)->clock, delta = 0;
+ unsigned long long now = rq_clock(task_rq(t)), delta = 0;
if (unlikely(sched_info_on()))
if (t->sched_info.last_queued)
@@ -79,7 +79,7 @@ static inline void sched_info_dequeued(struct task_struct *t)
*/
static void sched_info_arrive(struct task_struct *t)
{
- unsigned long long now = task_rq(t)->clock, delta = 0;
+ unsigned long long now = rq_clock(task_rq(t)), delta = 0;
if (t->sched_info.last_queued)
delta = now - t->sched_info.last_queued;
@@ -100,7 +100,7 @@ static inline void sched_info_queued(struct task_struct *t)
{
if (unlikely(sched_info_on()))
if (!t->sched_info.last_queued)
- t->sched_info.last_queued = task_rq(t)->clock;
+ t->sched_info.last_queued = rq_clock(task_rq(t));
}
/*
@@ -112,7 +112,7 @@ static inline void sched_info_queued(struct task_struct *t)
*/
static inline void sched_info_depart(struct task_struct *t)
{
- unsigned long long delta = task_rq(t)->clock -
+ unsigned long long delta = rq_clock(task_rq(t)) -
t->sched_info.last_arrival;
rq_sched_info_depart(task_rq(t), delta);