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| author | Ingo Molnar <mingo@elte.hu> | 2006-07-03 00:24:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-03 15:27:04 -0700 |
| commit | 8a25d5debff2daee280e83e09d8c25d67c26a972 (patch) | |
| tree | 3bccfef9acb66fc62863bfd6c16493c5e8c8e394 /include/asm-i386/spinlock.h | |
| parent | 4ea2176dfa714882e88180b474e4cbcd888b70af (diff) | |
| download | op-kernel-dev-8a25d5debff2daee280e83e09d8c25d67c26a972.zip op-kernel-dev-8a25d5debff2daee280e83e09d8c25d67c26a972.tar.gz | |
[PATCH] lockdep: prove spinlock rwlock locking correctness
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>
Diffstat (limited to 'include/asm-i386/spinlock.h')
| -rw-r--r-- | include/asm-i386/spinlock.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h index 7e29b51..87c40f8 100644 --- a/include/asm-i386/spinlock.h +++ b/include/asm-i386/spinlock.h @@ -68,6 +68,12 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock) "=m" (lock->slock) : : "memory"); } +/* + * It is easier for the lock validator if interrupts are not re-enabled + * in the middle of a lock-acquire. This is a performance feature anyway + * so we turn it off: + */ +#ifndef CONFIG_PROVE_LOCKING static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) { alternative_smp( @@ -75,6 +81,7 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long fla __raw_spin_lock_string_up, "=m" (lock->slock) : "r" (flags) : "memory"); } +#endif static inline int __raw_spin_trylock(raw_spinlock_t *lock) { |
