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[PATCH] lockdep: annotate hrtimer base locks

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Teach special (recursive) locking code to the lock validator.  Has no effect
on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-07-03 00:25:11 -07:00 committed by Linus Torvalds
parent fcb993712f
commit 5436552448
2 changed files with 4 additions and 1 deletions
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1
include/linux/hrtimer.h
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@ -91,6 +91,7 @@ struct hrtimer_base {
ktime_t (*get_softirq_time)(void);
struct hrtimer *curr_timer;
ktime_t softirq_time;
struct lock_class_key lock_key;
};
/*

4
kernel/hrtimer.c
View file

@ -782,8 +782,10 @@ static void __devinit init_hrtimers_cpu(int cpu)
struct hrtimer_base *base = per_cpu(hrtimer_bases, cpu);
int i;
for (i = 0; i < MAX_HRTIMER_BASES; i++, base++)
for (i = 0; i < MAX_HRTIMER_BASES; i++, base++) {
spin_lock_init(&base->lock);
lockdep_set_class(&base->lock, &base->lock_key);
}
}
#ifdef CONFIG_HOTPLUG_CPU