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[PATCH] lockdep: prove spinlock rwlock locking correctness

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Use the lock validator framework to prove spinlock and rwlock locking
correctness.

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 00:24:54 -07:00 • committed by Linus Torvalds
commit 8a25d5debf
13 changed files with 217 additions and 34 deletions
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7
lib/kernel_lock.c
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@ -177,7 +177,12 @@ static inline void __lock_kernel(void)
static inline void __unlock_kernel(void)
{
spin_unlock(&kernel_flag);
/*
* the BKL is not covered by lockdep, so we open-code the
* unlocking sequence (and thus avoid the dep-chain ops):
*/
_raw_spin_unlock(&kernel_flag);
preempt_enable();
}
/*