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| author | David S. Miller <davem@davemloft.net> | 2009-07-09 20:18:24 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-07-09 20:18:24 -0700 |
| commit | e5a8a896f5180f2950695d2d0b79db348d200ca4 (patch) | |
| tree | 04adc57ae51a6d30a89ffae970770b81ee81fc23 /arch | |
| parent | bff38771e1065c7fc3de87e47ba366151eea573c (diff) | |
| parent | e594e96e8a14101a6decabf6746bd5186287debc (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/spinlock.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h index b7e5db876399..4e77853321db 100644 --- a/arch/x86/include/asm/spinlock.h +++ b/arch/x86/include/asm/spinlock.h @@ -302,4 +302,8 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw) #define _raw_read_relax(lock) cpu_relax() #define _raw_write_relax(lock) cpu_relax() +/* The {read|write|spin}_lock() on x86 are full memory barriers. */ +static inline void smp_mb__after_lock(void) { } +#define ARCH_HAS_SMP_MB_AFTER_LOCK + #endif /* _ASM_X86_SPINLOCK_H */ |