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authorIngo Molnar <mingo@elte.hu>2006-01-09 18:59:17 -0500
committerIngo Molnar <mingo@hera.kernel.org>2006-01-09 18:59:17 -0500
commitffbf670f5cd50501a34a5187981460da2216071e (patch)
treef2cd9eeeb59839d15feddf906310bb375474c573 /include/asm-sh/atomic.h
parentf17578decc40df8fceff82b106582e30bdfb3189 (diff)
[PATCH] mutex subsystem, add atomic_xchg() to all arches
add atomic_xchg() to all the architectures. Needed by the new mutex code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Diffstat (limited to 'include/asm-sh/atomic.h')
-rw-r--r--include/asm-sh/atomic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h
index 618d8e0de348..fb627de217f2 100644
--- a/include/asm-sh/atomic.h
+++ b/include/asm-sh/atomic.h
@@ -101,6 +101,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
101 return ret; 101 return ret;
102} 102}
103 103
104#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
105
104static inline int atomic_add_unless(atomic_t *v, int a, int u) 106static inline int atomic_add_unless(atomic_t *v, int a, int u)
105{ 107{
106 int ret; 108 int ret;