Commit-ID: a296858625f810c28ceb360d448d4db5758ca48a
Gitweb: http://git.kernel.org/tip/a296858625f810c28ceb360d448d4db5758ca48a
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 7 Feb 2014 20:58:40 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 21 Feb 2014 21:43:19 +0100
sched: Adjust sched_reset_on_fork when nothing else changes
If the policy and priority remain unchanged a possible modification of
sched_reset_on_fork gets lost in the early exit path.
[bigeasy: rebase ontop of v3.14-rc1]
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1391803122-4425-5-git-send-email-bigeasy@xxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
kernel/sched/core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 241f7465..7527e68 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3370,7 +3370,8 @@ 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))
@@ -3380,6 +3381,7 @@ recheck:
if (dl_policy(policy))
goto change;
+ p->sched_reset_on_fork = reset_on_fork;
task_rq_unlock(rq, p, &flags);
return 0;
}
--
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