Commit d6b1e911 authored Feb 07, 2014 by Thomas Gleixner Committed by Ingo Molnar Feb 22, 2014

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>

parent 8f47b187

kernel/sched/core.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -3362,7 +3362,8 @@ static int __sched_setscheduler(struct task_struct *p,
		}

		/*
		* 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 @@ static int __sched_setscheduler(struct task_struct *p,
		if (dl_policy(policy))
		goto change;

		p->sched_reset_on_fork = reset_on_fork;
		task_rq_unlock(rq, p, &flags);
		return 0;
		}