[PATCH] timer-irq-driven soft-watchdog, cleanups

Make the softlockup detector purely timer-interrupt driven, removing
softirq-context (timer) dependencies.  This means that if the softlockup
watchdog triggers, it has truly observed a longer than 10 seconds
scheduling delay of a SCHED_FIFO prio 99 task.

(the patch also turns off the softlockup detector during the initial bootup
phase and does small style fixes)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2cda439ece43..e0054c1b9a09 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -206,11 +206,11 @@ extern void update_process_times(int user);
 extern void scheduler_tick(void);
 
 #ifdef CONFIG_DETECT_SOFTLOCKUP
-extern void softlockup_tick(struct pt_regs *regs);
+extern void softlockup_tick(void);
 extern void spawn_softlockup_task(void);
 extern void touch_softlockup_watchdog(void);
 #else
-static inline void softlockup_tick(struct pt_regs *regs)
+static inline void softlockup_tick(void)
 {
 }
 static inline void spawn_softlockup_task(void)