diff options
| author | Mathieu Desnoyers <compudj@krystal.dyndns.org> | 2007-05-08 00:34:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:20 -0700 |
| commit | 2856f5e31c1413bf6e4f1371e07e17078a5fee5e (patch) | |
| tree | 587dfe584f0913813d0cf2414a9378618143db15 /include/asm-generic | |
| parent | 79d365a306c3af53d8a732fec79b76c0b285d816 (diff) | |
| download | lwn-2856f5e31c1413bf6e4f1371e07e17078a5fee5e.tar.gz lwn-2856f5e31c1413bf6e4f1371e07e17078a5fee5e.zip | |
atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency
atomic_add_unless as inline. Remove system.h atomic.h circular dependency.
I agree (with Andi Kleen) this typeof is not needed and more error
prone. All the original atomic.h code that uses cmpxchg (which includes
the atomic_add_unless) uses defines instead of inline functions,
probably to circumvent a circular dependency between system.h and
atomic.h on powerpc (which my patch addresses). Therefore, it makes
sense to use inline functions that will provide type checking.
atomic_add_unless as inline. Remove system.h atomic.h circular dependency.
Digging into the FRV architecture shows me that it is also affected by
such a circular dependency. Here is the diff applying this against the
rest of my atomic.h patches.
It applies over the atomic.h standardization patches.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/atomic.h | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 5ae6dce1cba2..85fd0aa27a8c 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -9,7 +9,6 @@ */ #include <asm/types.h> -#include <asm/system.h> /* * Suppport for atomic_long_t @@ -123,8 +122,12 @@ static inline long atomic_long_dec_return(atomic_long_t *l) return (long)atomic64_dec_return(v); } -#define atomic_long_add_unless(l, a, u) \ - atomic64_add_unless((atomic64_t *)(l), (a), (u)) +static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) +{ + atomic64_t *v = (atomic64_t *)l; + + return (long)atomic64_add_unless(v, a, u); +} #define atomic_long_inc_not_zero(l) atomic64_inc_not_zero((atomic64_t *)(l)) @@ -236,8 +239,12 @@ static inline long atomic_long_dec_return(atomic_long_t *l) return (long)atomic_dec_return(v); } -#define atomic_long_add_unless(l, a, u) \ - atomic_add_unless((atomic_t *)(l), (a), (u)) +static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) +{ + atomic_t *v = (atomic_t *)l; + + return (long)atomic_add_unless(v, a, u); +} #define atomic_long_inc_not_zero(l) atomic_inc_not_zero((atomic_t *)(l)) |