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Use __sync_add_and_fetch instead of __sync_fetch_and_add for atomic_dec_and_test 

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@ubuntu.com>
Acked-By: Emil Velikov <emil.l.velikov@gmail.com>
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Maarten Lankhorst 2015-02-26 11:54:02 +01:00 committed by Maarten Lankhorst
parent cd4685498b
commit 7caa442e76
1 changed files with 1 additions and 1 deletions
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2
xf86atomic.h
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@ -50,7 +50,7 @@ typedef struct {
# define atomic_set(x, val) ((x)->atomic = (val))
# define atomic_inc(x) ((void) __sync_fetch_and_add (&(x)->atomic, 1))
# define atomic_inc_return(x) (__sync_add_and_fetch (&(x)->atomic, 1))
# define atomic_dec_and_test(x) (__sync_fetch_and_add (&(x)->atomic, -1) == 1)
# define atomic_dec_and_test(x) (__sync_add_and_fetch (&(x)->atomic, -1) == 0)
# define atomic_add(x, v) ((void) __sync_add_and_fetch(&(x)->atomic, (v)))
# define atomic_dec(x, v) ((void) __sync_sub_and_fetch(&(x)->atomic, (v)))
# define atomic_cmpxchg(x, oldv, newv) __sync_val_compare_and_swap (&(x)->atomic, oldv, newv)