linux-kernel - [PATCH] sched: fix the wrong time slice value for SCHED

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Date:	Fri, 07 Mar 2008 09:35:06 +0800
From:	Miao Xie <miaox@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH] sched: fix the wrong time slice value for SCHED_FIFO tasks

Function sys_sched_rr_get_interval returns wrong time slice value for
SCHED_FIFO tasks. The time slice for SCHED_FIFO tasks should be 0.

Signed-off-by: Miao Xie <miaox@...fujitsu.com>

---
 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index dcd553c..870044d 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5100,7 +5100,7 @@ long sys_sched_rr_get_interval(pid_t pid, struct timespec __user *interval)
 	time_slice = 0;
 	if (p->policy == SCHED_RR) {
 		time_slice = DEF_TIMESLICE;
-	} else {
+	} else if (p->policy != SCHED_FIFO) {
 		struct sched_entity *se = &p->se;
 		unsigned long flags;
 		struct rq *rq;
-- 
1.5.4.rc3


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