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sched: Adjust p->sched_reset_on_fork when nothing else changes 

If the policy and priority remain unchanged a possible modification of
p->sched_reset_on_fork gets lost in the early exit path.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[ Rebase ontop of v3.14-rc1. ]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1391803122-4425-5-git-send-email-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
hifive-unleashed-5.1
Thomas Gleixner 2014-02-07 20:58:40 +01:00 committed by Ingo Molnar
parent 8f47b1871b
commit d6b1e91197
1 changed files with 3 additions and 1 deletions
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4
kernel/sched/core.c
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@ -3362,7 +3362,8 @@ recheck:
}
/*
* If not changing anything there's no need to proceed further:
* If not changing anything there's no need to proceed further,
* but store a possible modification of reset_on_fork.
*/
if (unlikely(policy == p->policy)) {
if (fair_policy(policy) && attr->sched_nice != task_nice(p))
@ -3372,6 +3373,7 @@ recheck:
if (dl_policy(policy))
goto change;
p->sched_reset_on_fork = reset_on_fork;
task_rq_unlock(rq, p, &flags);
return 0;
}