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Commit 14416c35 authored by Akinobu Mita's avatar Akinobu Mita Committed by Ingo Molnar
Browse files

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: default avatarAkinobu 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: default avatarDon Zickus <dzickus@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent eac24335

kernel/watchdog.c

+0 −15
Original line number Original line Diff line number Diff line
@@ -43,7 +43,6 @@ static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved); 
static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);

static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);

#endif

#endif





static int __read_mostly did_panic;

static int __initdata no_watchdog;

static int __initdata no_watchdog;
@@ -180,18 +179,6 @@ static int is_softlockup(unsigned long touch_ts) 
	return 0;

	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

#ifdef CONFIG_HARDLOCKUP_DETECTOR

static struct perf_event_attr wd_hw_attr = {

static struct perf_event_attr wd_hw_attr = {

	.type		= PERF_TYPE_HARDWARE,

	.type		= PERF_TYPE_HARDWARE,
@@ -564,8 +551,6 @@ static int __init spawn_watchdog_task(void) 
	cpu_callback(&cpu_nfb, CPU_ONLINE, cpu);

	cpu_callback(&cpu_nfb, CPU_ONLINE, cpu);

	register_cpu_notifier(&cpu_nfb);

	register_cpu_notifier(&cpu_nfb);





	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);



	return 0;

	return 0;

}

}

early_initcall(spawn_watchdog_task);
 
early_initcall(spawn_watchdog_task);