diff options
| author | Nick Piggin <npiggin@suse.de> | 2008-05-14 06:35:11 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-14 10:05:18 -0700 |
| commit | 73f10281ea96d7e8b4fc1c5d755a7c8eb484155b (patch) | |
| tree | d75ab7ba0f571ce0c08d30a04f1da7c781b02092 /include/asm-alpha/barrier.h | |
| parent | 4ef7e3e90f56c74b2a17e12d49ed35c3767d66c2 (diff) | |
read_barrier_depends arch fixlets
read_barrie_depends has always been a noop (not a compiler barrier) on all
architectures except SMP alpha. This brings UP alpha and frv into line with all
other architectures, and fixes incorrect documentation.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-alpha/barrier.h')
| -rw-r--r-- | include/asm-alpha/barrier.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-alpha/barrier.h b/include/asm-alpha/barrier.h index 384dc08d6f5..ac78eba909b 100644 --- a/include/asm-alpha/barrier.h +++ b/include/asm-alpha/barrier.h @@ -24,7 +24,7 @@ __asm__ __volatile__("mb": : :"memory") #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() -#define smp_read_barrier_depends() barrier() +#define smp_read_barrier_depends() do { } while (0) #endif #define set_mb(var, value) \ |