aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-x86_64
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-x86_64')
-rw-r--r--include/asm-x86_64/atomic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86_64/atomic.h b/include/asm-x86_64/atomic.h
index fc4c5956e1ea..75c8a1e96737 100644
--- a/include/asm-x86_64/atomic.h
+++ b/include/asm-x86_64/atomic.h
@@ -360,6 +360,8 @@ static __inline__ int atomic_sub_return(int i, atomic_t *v)
360 return atomic_add_return(-i,v); 360 return atomic_add_return(-i,v);
361} 361}
362 362
363#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new))
364
363#define atomic_inc_return(v) (atomic_add_return(1,v)) 365#define atomic_inc_return(v) (atomic_add_return(1,v))
364#define atomic_dec_return(v) (atomic_sub_return(1,v)) 366#define atomic_dec_return(v) (atomic_sub_return(1,v))
365 367