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sched/deadline: Change return value of cpudl_find()

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cpudl_find() users are only interested in knowing if suitable CPU(s)
were found or not (and then they look at later_mask to know which).

Change cpudl_find() return type accordingly. Aligns with rt code.

Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <bristot@redhat.com>
Cc: <juri.lelli@gmail.com>
Cc: <kernel-team@lge.com>
Cc: <rostedt@goodmis.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1495504859-10960-3-git-send-email-byungchul.park@lge.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Byungchul Park
2017-05-23 11:00:57 +09:00
committed by Ingo Molnar
parent b18c3ca11c
commit 3261ed0b25
2 changed files with 17 additions and 17 deletions
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6
kernel/sched/deadline.c
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@@ -1594,7 +1594,7 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p)
* let's hope p can move out.
*/
if (rq->curr->nr_cpus_allowed == 1 ||
cpudl_find(&rq->rd->cpudl, rq->curr, NULL) == -1)
!cpudl_find(&rq->rd->cpudl, rq->curr, NULL))
return;
/*
@@ -1602,7 +1602,7 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p)
* see if it is pushed or pulled somewhere else.
*/
if (p->nr_cpus_allowed != 1 &&
cpudl_find(&rq->rd->cpudl, p, NULL) != -1)
cpudl_find(&rq->rd->cpudl, p, NULL))
return;
resched_curr(rq);
@@ -1811,7 +1811,7 @@ static int find_later_rq(struct task_struct *task)
* We have to consider system topology and task affinity
* first, then we can look for a suitable cpu.
*/
if (cpudl_find(&task_rq(task)->rd->cpudl, task, later_mask) == -1)
if (!cpudl_find(&task_rq(task)->rd->cpudl, task, later_mask))
return -1;
/*