From: Akinobu Mita Date: Wed, 1 Sep 2010 03:00:09 +0000 (-0400) Subject: lockup_detector: Remove unused panic_notifier X-Git-Tag: firefly_0821_release~7613^2~3737^2~93 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=14416c35b6b9975c9593d7ecc8382d1ecaa0b598;p=firefly-linux-kernel-4.4.55.git 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 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 Signed-off-by: Ingo Molnar --- diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 501cb6edca4b..5b1ee4f4ca0d 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -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);