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authorXunlei Pang <pang.xunlei@linaro.org>2015-07-04 15:39:23 +0800
committerIngo Molnar <mingo@kernel.org>2015-08-03 12:21:20 +0200
commit3fe33bcdd358dd8c641cf4d92c9d2d9972ca94dd (patch)
tree6894d6ade36cab085d109f67ba9d667eda262552 /kernel/sched
parent8fd373548eed815858d7b5534971bdc64b4d8d2c (diff)
downloadblackbird-op-linux-3fe33bcdd358dd8c641cf4d92c9d2d9972ca94dd.tar.gz
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sched/deadline: Remove a redundant condition from task_woken_dl()
'p' has been already queued at this point, so "!task_running(rq, p)" and "p->nr_cpus_allowed > 1" imply that "has_pushable_dl_tasks(rq)" is true, so it can be removed. Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Juri Lelli <juri.lelli@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1435995563-3723-2-git-send-email-xlpang@126.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/deadline.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 0a17af35670a..20772eea67f2 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1657,7 +1657,6 @@ static void task_woken_dl(struct rq *rq, struct task_struct *p)
{
if (!task_running(rq, p) &&
!test_tsk_need_resched(rq->curr) &&
- has_pushable_dl_tasks(rq) &&
p->nr_cpus_allowed > 1 &&
dl_task(rq->curr) &&
(rq->curr->nr_cpus_allowed < 2 ||
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