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| author | Arnd Bergmann <arnd@arndb.de> | 2011-07-28 19:25:46 +0400 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-07-28 19:25:46 +0400 |
| commit | 6124a4e430b64d1577438c8648c59e996d02e73e (patch) | |
| tree | 49cfafad785d1c9e403a5b0d755298b9af2c260f /arch/alpha/include/asm/atomic.h | |
| parent | 8e267f3da5f117d2f1316cf6ddf740f93f1c73aa (diff) | |
| parent | 580975d7f48d7d047e22bb0f42adf7557801d8d4 (diff) | |
| download | linux-6124a4e430b64d1577438c8648c59e996d02e73e.tar.xz | |
Merge branch 'imx/dt' into next/dt
Diffstat (limited to 'arch/alpha/include/asm/atomic.h')
| -rw-r--r-- | arch/alpha/include/asm/atomic.h | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h index e756d04b6cd5..640f909ddd41 100644 --- a/arch/alpha/include/asm/atomic.h +++ b/arch/alpha/include/asm/atomic.h @@ -176,15 +176,15 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v) #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) /** - * atomic_add_unless - add unless the number is a given value + * __atomic_add_unless - add unless the number is a given value * @v: pointer of type atomic_t * @a: the amount to add to v... * @u: ...unless v is equal to 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 the old value of @v. */ -static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) +static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) { int c, old; c = atomic_read(v); @@ -196,10 +196,9 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) break; c = old; } - return c != (u); + return c; } -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) /** * atomic64_add_unless - add unless the number is a given value @@ -208,7 +207,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) * @u: ...unless v is equal to 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 the old value of @v. */ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) { @@ -256,5 +255,4 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) #define smp_mb__before_atomic_inc() smp_mb() #define smp_mb__after_atomic_inc() smp_mb() -#include <asm-generic/atomic-long.h> #endif /* _ALPHA_ATOMIC_H */ |