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Diffstat (limited to 'include/asm-m32r/atomic.h')
-rw-r--r--include/asm-m32r/atomic.h23
1 files changed, 15 insertions, 8 deletions
diff --git a/include/asm-m32r/atomic.h b/include/asm-m32r/atomic.h
index f5a7d7301c72..3a38ffe4a4f4 100644
--- a/include/asm-m32r/atomic.h
+++ b/include/asm-m32r/atomic.h
@@ -253,14 +253,21 @@ static __inline__ int atomic_dec_return(atomic_t *v)
* Atomically adds @a to @v, so long as it was not @u.
* Returns non-zero if @v was not @u, and zero otherwise.
*/
-#define atomic_add_unless(v, a, u) \
-({ \
- int c, old; \
- c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
- c = old; \
- c != (u); \
-})
+static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
+{
+ int c, old;
+ c = atomic_read(v);
+ for (;;) {
+ if (unlikely(c == (u)))
+ break;
+ old = atomic_cmpxchg((v), c, c + (a));
+ if (likely(old == c))
+ break;
+ c = old;
+ }
+ return c != (u);
+}
+
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
static __inline__ void atomic_clear_mask(unsigned long mask, atomic_t *addr)