linux 2.6.16.38 w/ vs2.0.3-rc1
[linux-2.6.git] / include / asm-generic / mutex-xchg.h
index 32a2100..1d24f47 100644 (file)
@@ -3,7 +3,7 @@
  *
  * Generic implementation of the mutex fastpath, based on xchg().
  *
- * NOTE: An xchg based implementation might be less optimal than an atomic
+ * NOTE: An xchg based implementation is less optimal than an atomic
  *       decrement/increment based implementation. If your architecture
  *       has a reasonable atomic dec/inc then you should probably use
  *      asm-generic/mutex-dec.h instead, or you could open-code an
  * wasn't 1 originally. This function MUST leave the value lower than 1
  * even when the "1" assertion wasn't true.
  */
-static inline void
-__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
-       if (unlikely(atomic_xchg(count, 0) != 1))
-               fail_fn(count);
-       else
-               smp_mb();
-}
+#define __mutex_fastpath_lock(count, fail_fn)                          \
+do {                                                                   \
+       if (unlikely(atomic_xchg(count, 0) != 1))                       \
+               fail_fn(count);                                         \
+       else                                                            \
+               smp_mb();                                               \
+} while (0)
+
 
 /**
  *  __mutex_fastpath_lock_retval - try to take the lock by moving the count
@@ -42,7 +42,7 @@ __mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
  * or anything the slow path function returns
  */
 static inline int
-__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *))
+__mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *))
 {
        if (unlikely(atomic_xchg(count, 0) != 1))
                return fail_fn(count);
@@ -64,13 +64,12 @@ __mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *
  * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs
  * to return 0 otherwise.
  */
-static inline void
-__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
-       smp_mb();
-       if (unlikely(atomic_xchg(count, 1) != 0))
-               fail_fn(count);
-}
+#define __mutex_fastpath_unlock(count, fail_fn)                                \
+do {                                                                   \
+       smp_mb();                                                       \
+       if (unlikely(atomic_xchg(count, 1) != 0))                       \
+               fail_fn(count);                                         \
+} while (0)
 
 #define __mutex_slowpath_needs_to_unlock()             0