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| author | David S. Miller <davem@davemloft.net> | 2008-04-18 08:56:30 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-18 08:56:30 +0200 |
| commit | 1e42198609d73ed1a9adcba2af275c24c2678420 (patch) | |
| tree | 32fd4d9073bfc0f3909af8f9fb4bcff38951d01a /include/asm-frv/system.h | |
| parent | [NETLABEL]: Fix NULL deref in netlbl_unlabel_staticlist_gen() if ifindex not ... (diff) | |
| parent | Linux 2.6.25 (diff) | |
| download | linux-1e42198609d73ed1a9adcba2af275c24c2678420.tar.xz linux-1e42198609d73ed1a9adcba2af275c24c2678420.zip | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/asm-frv/system.h')
| -rw-r--r-- | include/asm-frv/system.h | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h index 2c57f4734746..30a67a9da11a 100644 --- a/include/asm-frv/system.h +++ b/include/asm-frv/system.h @@ -179,14 +179,23 @@ do { \ #define mb() asm volatile ("membar" : : :"memory") #define rmb() asm volatile ("membar" : : :"memory") #define wmb() asm volatile ("membar" : : :"memory") -#define set_mb(var, value) do { var = value; mb(); } while (0) +#define read_barrier_depends() barrier() -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() - -#define read_barrier_depends() do {} while(0) +#ifdef CONFIG_SMP +#define smp_mb() mb() +#define smp_rmb() rmb() +#define smp_wmb() wmb() #define smp_read_barrier_depends() read_barrier_depends() +#define set_mb(var, value) \ + do { xchg(&var, (value)); } while (0) +#else +#define smp_mb() barrier() +#define smp_rmb() barrier() +#define smp_wmb() barrier() +#define smp_read_barrier_depends() do {} while(0) +#define set_mb(var, value) \ + do { var = (value); barrier(); } while (0) +#endif #define HARD_RESET_NOW() \ do { \ |