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sched: Remove redundant assignment to "rt_rq" in update_curr_rt(...)

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Variable "rt_rq" is used only in block "for_each_sched_rt_entity" so the
value assigned to it at the beginning of the update_curr_rt(...) gets
overwritten without ever being read. Remove redundant assignment and
move variable declaration to the block in which it is being used.

Signed-off-by: Giedrius Rekasius <giedrius.rekasius@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-janitors@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/1401027811-30066-1-git-send-email-giedrius.rekasius@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Giedrius Rekasius 2014-05-25 15:23:31 +01:00 committed by Ingo Molnar
parent 5d4dfddd4f
commit 0b07939cbf
1 changed files with 1 additions and 2 deletions
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3
kernel/sched/rt.c
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@ -924,7 +924,6 @@ static void update_curr_rt(struct rq *rq)
{ {
struct task_struct *curr = rq->curr; struct task_struct *curr = rq->curr;
struct sched_rt_entity *rt_se = &curr->rt; struct sched_rt_entity *rt_se = &curr->rt;
struct rt_rq *rt_rq = rt_rq_of_se(rt_se);
u64 delta_exec; u64 delta_exec;
if (curr->sched_class != &rt_sched_class) if (curr->sched_class != &rt_sched_class)
@ -949,7 +948,7 @@ static void update_curr_rt(struct rq *rq)
return; return;
for_each_sched_rt_entity(rt_se) { for_each_sched_rt_entity(rt_se) {
rt_rq = rt_rq_of_se(rt_se); struct rt_rq *rt_rq = rt_rq_of_se(rt_se);
if (sched_rt_runtime(rt_rq) != RUNTIME_INF) { if (sched_rt_runtime(rt_rq) != RUNTIME_INF) {
raw_spin_lock(&rt_rq->rt_runtime_lock); raw_spin_lock(&rt_rq->rt_runtime_lock);