atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency
[linux-2.6.git] / include / asm-x86_64 / atomic.h
index 80e4fdbe220402f1551570736e6ccf5f2bfa43ba..19e0c607b568165be8fa468151b3efb27e158023 100644 (file)
@@ -2,6 +2,7 @@
 #define __ARCH_X86_64_ATOMIC__
 
 #include <asm/alternative.h>
 #define __ARCH_X86_64_ATOMIC__
 
 #include <asm/alternative.h>
+#include <asm/system.h>
 
 /* atomic_t should be 32 bit signed type */
 
 
 /* atomic_t should be 32 bit signed type */
 
@@ -403,20 +404,21 @@ static __inline__ long atomic64_sub_return(long i, atomic64_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.
  */
  * 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)                             \
-({                                                             \
-       __typeof__((v)->counter) 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;                                        \
-       }                                                       \
-       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)
 
 /**
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
 /**
@@ -428,20 +430,21 @@ static __inline__ long atomic64_sub_return(long i, atomic64_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.
  */
  * Atomically adds @a to @v, so long as it was not @u.
  * Returns non-zero if @v was not @u, and zero otherwise.
  */
-#define atomic64_add_unless(v, a, u)                           \
-({                                                             \
-       __typeof__((v)->counter) c, old;                        \
-       c = atomic64_read(v);                                   \
-       for (;;) {                                              \
-               if (unlikely(c == (u)))                         \
-                       break;                                  \
-               old = atomic64_cmpxchg((v), c, c + (a));        \
-               if (likely(old == c))                           \
-                       break;                                  \
-               c = old;                                        \
-       }                                                       \
-       c != (u);                                               \
-})
+static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
+{
+       long c, old;
+       c = atomic64_read(v);
+       for (;;) {
+               if (unlikely(c == (u)))
+                       break;
+               old = atomic64_cmpxchg((v), c, c + (a));
+               if (likely(old == c))
+                       break;
+               c = old;
+       }
+       return c != (u);
+}
+
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
 /* These are x86-specific, used by some header files */
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
 /* These are x86-specific, used by some header files */