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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2013-04-12 01:51:02 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-05-28 09:40:27 +0200 |
| commit | 78becc27097585c6aec7043834cadde950ae79f2 (patch) | |
| tree | 3e8f0982faa2a456c1c68fa5e5a4c7c815194ae4 /kernel/sched/rt.c | |
| parent | 1a55af2e45cce0ff13bc33c8ee99da84e188b615 (diff) | |
| download | linux-78becc27097585c6aec7043834cadde950ae79f2.tar.gz linux-78becc27097585c6aec7043834cadde950ae79f2.tar.bz2 linux-78becc27097585c6aec7043834cadde950ae79f2.zip | |
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.c | 8 |
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); |