[tip:sched/core] sched: Add SCHED_RESET_ON_FORK functionality for nice < 0 tasks
From: tip-bot for Mike Galbraith
Date: Wed Jun 17 2009 - 12:37:46 EST
Commit-ID: 6c697bdf08a09ce461e305a22362973036e95db3
Gitweb: http://git.kernel.org/tip/6c697bdf08a09ce461e305a22362973036e95db3
Author: Mike Galbraith <efault@xxxxxx>
AuthorDate: Wed, 17 Jun 2009 10:48:02 +0200
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Wed, 17 Jun 2009 18:34:18 +0200
sched: Add SCHED_RESET_ON_FORK functionality for nice < 0 tasks
Signed-off-by: Mike Galbraith <efault@xxxxxx>
Acked-by: Lennart Poettering <mzxreary@xxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
LKML-Reference: <1245228482.27326.1.camel@xxxxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
kernel/sched.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index 50e4e3d..34f9424 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2627,6 +2627,11 @@ void sched_fork(struct task_struct *p, int clone_flags)
if (p->normal_prio < DEFAULT_PRIO)
p->prio = DEFAULT_PRIO;
+ if (PRIO_TO_NICE(p->static_prio) < 0) {
+ p->static_prio = NICE_TO_PRIO(0);
+ set_load_weight(p);
+ }
+
/*
* We don't need the reset flag anymore after the fork. It has
* fulfilled its duty:
--
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