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| author | Hillf Danton <dhillf@gmail.com> | 2011-06-17 03:55:21 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-08-14 12:00:50 +0200 |
| commit | 1812a643ccbfeb61a00a7f0d7219606e63d8815b (patch) | |
| tree | 874b7db2d6382e32160127b7e880007b9c8e7c87 /kernel/sched_rt.c | |
| parent | sched, rt: Fix rq->rt.pushable_tasks bug in push_rt_task() (diff) | |
| download | linux-1812a643ccbfeb61a00a7f0d7219606e63d8815b.tar.xz linux-1812a643ccbfeb61a00a7f0d7219606e63d8815b.zip | |
sched: Remove resetting exec_start in put_prev_task_rt()
There's no reason to clean the exec_start in put_prev_task_rt() as it is reset
when the task gets back to the run queue. This saves us doing a store() in the
fast path.
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Yong Zhang <yong.zhang0@gmail.com>
Link: http://lkml.kernel.org/r/BANLkTimqWD=q6YnSDi-v9y=LMWecgEzEWg@mail.gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_rt.c')
| -rw-r--r-- | kernel/sched_rt.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 8e189455ed12..70107a39b1ba 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -1178,7 +1178,6 @@ static struct task_struct *pick_next_task_rt(struct rq *rq) static void put_prev_task_rt(struct rq *rq, struct task_struct *p) { update_curr_rt(rq); - p->se.exec_start = 0; /* * The previous task needs to be made eligible for pushing |