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| author | Ingo Molnar <mingo@elte.hu> | 2009-08-15 18:55:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-15 18:56:13 +0200 |
| commit | fa08661af834875c9bd6f7f0b1b9388dc72a6585 (patch) | |
| tree | c381fcfcfeb38515bfa93445c80ad9231343414d /include/linux/spinlock.h | |
| parent | 240ebbf81f149b11a31e060ebe5ee51a3c775360 (diff) | |
| parent | 64f1607ffbbc772685733ea63e6f7f4183df1b16 (diff) | |
Merge commit 'v2.6.31-rc6' into core/rcu
Merge reason: the branch was on pre-rc1 .30, update to latest.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/spinlock.h')
| -rw-r--r-- | include/linux/spinlock.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index 252b245cfcf..4be57ab0347 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -132,6 +132,11 @@ do { \ #endif /*__raw_spin_is_contended*/ #endif +/* The lock does not imply full memory barrier. */ +#ifndef ARCH_HAS_SMP_MB_AFTER_LOCK +static inline void smp_mb__after_lock(void) { smp_mb(); } +#endif + /** * spin_unlock_wait - wait until the spinlock gets unlocked * @lock: the spinlock in question. |