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authorThomas Gleixner <tglx@linutronix.de>2011-09-12 13:40:05 +0200
committerIngo Molnar <mingo@elte.hu>2011-09-18 14:34:07 +0200
commitcba9bd22a5f8f857534b9a7f3fb3cafa0ac5fb75 (patch)
tree47cd0ede22b4e3624dd6db0ffe2b3d15fb87fbf6 /kernel/watchdog.c
parent51887c8230d57c4d9cc68e3784c52c8f0a708655 (diff)
downloadlinux-linaro-stable-cba9bd22a5f8f857534b9a7f3fb3cafa0ac5fb75.tar.gz
watchdog: Drop FIFO policy in exit path
When the watchdog thread exits it runs through the exit path with FIFO priority. There is no point in doing so. Switch back to SCHED_NORMAL before exiting. Cc: Don Zickus <dzickus@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1109121337461.2723@ionos Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/watchdog.c')
-rw-r--r--kernel/watchdog.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index e952a1394d26..d680381b0e9c 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -321,7 +321,7 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
*/
static int watchdog(void *unused)
{
- static struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
+ struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
struct hrtimer *hrtimer = &__raw_get_cpu_var(watchdog_hrtimer);
sched_setscheduler(current, SCHED_FIFO, &param);
@@ -350,7 +350,8 @@ static int watchdog(void *unused)
set_current_state(TASK_INTERRUPTIBLE);
}
__set_current_state(TASK_RUNNING);
-
+ param.sched_priority = 0;
+ sched_setscheduler(current, SCHED_NORMAL, &param);
return 0;
}