h8300 atomic.h update
add atomic_sub_and_test define.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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 @@
}
#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)
{