[PATCH] h8300 atomic.h update

[Yoshinori Sato <ysato@users.sourceforge.jp>]

add atomic_sub_and_test define.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

diff --git a/include/asm-h8300/atomic.h b/include/asm-h8300/atomic.h
index 21f5442..b4cf0ea 100644
--- a/include/asm-h8300/atomic.h
+++ b/include/asm-h8300/atomic.h
@@ -37,6 +37,7 @@ static __inline__ int atomic_sub_return(int i, atomic_t *v)
 }
 
 #define atomic_sub(i, v) atomic_sub_return(i, v)
+#define atomic_sub_and_test(i,v) (atomic_sub_return(i, v) == 0)
 
 static __inline__ int atomic_inc_return(atomic_t *v)
 {

-- 
Yoshinori Sato
<ysato@users.sourceforge.jp>
-
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