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lockdep: fix spurious 'inconsistent lock state' warning 

Since f82b217e35 lockdep can output spurious
warnings related to hwirqs due to hardirq_off shrinkage from int to bit-sized
flag. Guard it with double negation to fix the warning.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Dmitry Baryshkov 2008-08-18 04:26:37 +04:00 committed by Ingo Molnar
parent b09c3e3f17
commit 6951b12a0f
1 changed files with 1 additions and 1 deletions
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2
kernel/lockdep.c
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@ -2582,7 +2582,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
hlock->trylock = trylock;
hlock->read = read;
hlock->check = check;
hlock->hardirqs_off = hardirqs_off;
hlock->hardirqs_off = !!hardirqs_off;
#ifdef CONFIG_LOCK_STAT
hlock->waittime_stamp = 0;
hlock->holdtime_stamp = sched_clock();