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[PATCH] powerpc: reformat atomic_add_unless

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It makes my eyes hurt.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard
2006-01-13 16:51:52 +11:00
committed by Paul Mackerras
parent 144b9c135b
commit b11fa580ac
1 changed files with 13 additions and 13 deletions
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26
include/asm-powerpc/atomic.h
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@@ -176,19 +176,19 @@ static __inline__ int atomic_dec_return(atomic_t *v)
* Atomically adds @a to @v, so long as it was not @u. * Atomically adds @a to @v, so long as it was not @u.
* Returns non-zero if @v was not @u, and zero otherwise. * Returns non-zero if @v was not @u, and zero otherwise.
*/ */
#define atomic_add_unless(v, a, u) \ #define atomic_add_unless(v, a, u) \
({ \ ({ \
int c, old; \ int c, old; \
c = atomic_read(v); \ c = atomic_read(v); \
for (;;) { \ for (;;) { \
if (unlikely(c == (u))) \ if (unlikely(c == (u))) \
break; \ break; \
old = atomic_cmpxchg((v), c, c + (a)); \ old = atomic_cmpxchg((v), c, c + (a)); \
if (likely(old == c)) \ if (likely(old == c)) \
break; \ break; \
c = old; \ c = old; \
} \ } \
c != (u); \ c != (u); \
}) })
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)