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Merge branch 'perf/urgent' into perf/core

Browse source 
Merge reason: Pick up pending fixes before applying dependent new changes.

Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Ingo Molnar 2010-09-09 20:40:06 +02:00
commit 2aa61274ef
13 changed files with 194 additions and 88 deletions
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17
kernel/watchdog.c
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@ -121,7 +121,7 @@ static void __touch_watchdog(void)
void touch_softlockup_watchdog(void)
{
__get_cpu_var(watchdog_touch_ts) = 0;
__raw_get_cpu_var(watchdog_touch_ts) = 0;
}
EXPORT_SYMBOL(touch_softlockup_watchdog);
@ -141,7 +141,14 @@ void touch_all_softlockup_watchdogs(void)
#ifdef CONFIG_HARDLOCKUP_DETECTOR
void touch_nmi_watchdog(void)
{
__get_cpu_var(watchdog_nmi_touch) = true;
if (watchdog_enabled) {
unsigned cpu;
for_each_present_cpu(cpu) {
if (per_cpu(watchdog_nmi_touch, cpu) != true)
per_cpu(watchdog_nmi_touch, cpu) = true;
}
}
touch_softlockup_watchdog();
}
EXPORT_SYMBOL(touch_nmi_watchdog);
@ -422,6 +429,9 @@ static int watchdog_enable(int cpu)
wake_up_process(p);
}
/* if any cpu succeeds, watchdog is considered enabled for the system */
watchdog_enabled = 1;
return 0;
}
@ -444,9 +454,6 @@ static void watchdog_disable(int cpu)
per_cpu(softlockup_watchdog, cpu) = NULL;
kthread_stop(p);
}
/* if any cpu succeeds, watchdog is considered enabled for the system */
watchdog_enabled = 1;
}
static void watchdog_enable_all_cpus(void)