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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/rt.c
parent1a55af2e45cce0ff13bc33c8ee99da84e188b615 (diff)
downloadblackbird-op-linux-78becc27097585c6aec7043834cadde950ae79f2.tar.gz
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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/rt.c')
-rw-r--r--kernel/sched/rt.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 8853ab17b750..8d85f9ac4262 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -886,7 +886,7 @@ static void update_curr_rt(struct rq *rq)
if (curr->sched_class != &rt_sched_class)
return;
- delta_exec = rq->clock_task - curr->se.exec_start;
+ delta_exec = rq_clock_task(rq) - curr->se.exec_start;
if (unlikely((s64)delta_exec <= 0))
return;
@@ -896,7 +896,7 @@ static void update_curr_rt(struct rq *rq)
curr->se.sum_exec_runtime += delta_exec;
account_group_exec_runtime(curr, delta_exec);
- curr->se.exec_start = rq->clock_task;
+ curr->se.exec_start = rq_clock_task(rq);
cpuacct_charge(curr, delta_exec);
sched_rt_avg_update(rq, delta_exec);
@@ -1345,7 +1345,7 @@ static struct task_struct *_pick_next_task_rt(struct rq *rq)
} while (rt_rq);
p = rt_task_of(rt_se);
- p->se.exec_start = rq->clock_task;
+ p->se.exec_start = rq_clock_task(rq);
return p;
}
@@ -1997,7 +1997,7 @@ static void set_curr_task_rt(struct rq *rq)
{
struct task_struct *p = rq->curr;
- p->se.exec_start = rq->clock_task;
+ p->se.exec_start = rq_clock_task(rq);
/* The running task is never eligible for pushing */
dequeue_pushable_task(rq, p);
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