diff options
author | Sascha Hauer <s.hauer@pengutronix.de> | 2011-08-08 10:22:41 +0400 |
---|---|---|
committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-08-08 10:22:41 +0400 |
commit | 1a43f2012455a977397deffe35912fd3f3ce17b9 (patch) | |
tree | 5189f337df44e7a495fbd097cd476b0380babd8c /arch/mips/include/asm/atomic.h | |
parent | e1b96ada659431669efaf3defa997abf5db68130 (diff) | |
parent | 322a8b034003c0d46d39af85bf24fee27b902f48 (diff) | |
download | linux-1a43f2012455a977397deffe35912fd3f3ce17b9.tar.xz |
Merge commit 'v3.1-rc1' into imx-fixes
Diffstat (limited to 'arch/mips/include/asm/atomic.h')
-rw-r--r-- | arch/mips/include/asm/atomic.h | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h index 4a02fe891ab6..1d93f81d57e7 100644 --- a/arch/mips/include/asm/atomic.h +++ b/arch/mips/include/asm/atomic.h @@ -303,15 +303,15 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_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); @@ -323,9 +323,8 @@ 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) #define atomic_dec_return(v) atomic_sub_return(1, (v)) #define atomic_inc_return(v) atomic_add_return(1, (v)) @@ -680,7 +679,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * 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 atomic64_add_unless(atomic64_t *v, long a, long u) { @@ -766,10 +765,6 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) */ #define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0) -#else /* !CONFIG_64BIT */ - -#include <asm-generic/atomic64.h> - #endif /* CONFIG_64BIT */ /* @@ -781,6 +776,4 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) #define smp_mb__before_atomic_inc() smp_mb__before_llsc() #define smp_mb__after_atomic_inc() smp_llsc_mb() -#include <asm-generic/atomic-long.h> - #endif /* _ASM_ATOMIC_H */ |