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Diffstat (limited to 'include/asm-x86_64/local.h')
-rw-r--r--include/asm-x86_64/local.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-x86_64/local.h b/include/asm-x86_64/local.h
index 169c223a8452..c954f15c1a75 100644
--- a/include/asm-x86_64/local.h
+++ b/include/asm-x86_64/local.h
@@ -45,7 +45,8 @@ static __inline__ void local_sub(unsigned long i, local_t *v)
45 :"ir" (i), "m" (v->counter)); 45 :"ir" (i), "m" (v->counter));
46} 46}
47 47
48/* On x86, these are no better than the atomic variants. */ 48/* On x86-64 these are better than the atomic variants on SMP kernels
49 because they dont use a lock prefix. */
49#define __local_inc(l) local_inc(l) 50#define __local_inc(l) local_inc(l)
50#define __local_dec(l) local_dec(l) 51#define __local_dec(l) local_dec(l)
51#define __local_add(i,l) local_add((i),(l)) 52#define __local_add(i,l) local_add((i),(l))