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lockup_detector: Remove unused panic_notifier 

The panic notifer in lockup_detector just set did_panic to 1.
But did_panic is not used anywhere so we can just remove it.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: peterz@infradead.org
Cc: gorcunov@gmail.com
Cc: fweisbec@gmail.com
LKML-Reference: <1283310009-22168-4-git-send-email-dzickus@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Akinobu Mita 2010-08-31 23:00:09 -04:00 committed by Ingo Molnar
parent eac243355a
commit 14416c35b6
1 changed files with 0 additions and 15 deletions
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15
kernel/watchdog.c
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@ -43,7 +43,6 @@ static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved);
static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);
#endif
static int __read_mostly did_panic;
static int __initdata no_watchdog;
@ -180,18 +179,6 @@ static int is_softlockup(unsigned long touch_ts)
return 0;
}
static int
watchdog_panic(struct notifier_block *this, unsigned long event, void *ptr)
{
did_panic = 1;
return NOTIFY_DONE;
}
static struct notifier_block panic_block = {
.notifier_call = watchdog_panic,
};
#ifdef CONFIG_HARDLOCKUP_DETECTOR
static struct perf_event_attr wd_hw_attr = {
.type = PERF_TYPE_HARDWARE,
@ -564,8 +551,6 @@ static int __init spawn_watchdog_task(void)
cpu_callback(&cpu_nfb, CPU_ONLINE, cpu);
register_cpu_notifier(&cpu_nfb);
atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
return 0;
}
early_initcall(spawn_watchdog_task);