[tip:perf/core] lockup_detector: Remove unused panic_notifier

tip-bot for Akinobu Mita
2010-09-01T06:25:38Z

Commit-ID: 14416c35b6b9975c9593d7ecc8382d1ecaa0b598
Gitweb: http://git.kernel.org/tip/14416c35b6b9975c9593d7ecc8382d1ecaa0b598
Author: Akinobu Mita <akinobu.mita@gmail.com>
AuthorDate: Tue, 31 Aug 2010 23:00:09 -0400
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Wed, 1 Sep 2010 07:33:34 +0200

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>
---
kernel/watchdog.c | 15 ---------------
1 files changed, 0 insertions(+), 15 deletions(-)

diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 501cb6e..5b1ee4f4 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);