linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / fs / xfs / linux-2.6 / sema.h

diff --git a/fs/xfs/linux-2.6/sema.h b/fs/xfs/linux-2.6/sema.h
index b250900..194a844 100644 (file)
--- a/fs/xfs/linux-2.6/sema.h
+++ b/fs/xfs/linux-2.6/sema.h
@@ -34,21 +34,20 @@ typedef struct semaphore sema_t;
 #define initnsema(sp, val, name)       sema_init(sp, val)
 #define psema(sp, b)                   down(sp)
 #define vsema(sp)                      up(sp)
-#define freesema(sema)                 do { } while (0)
-
-static inline int issemalocked(sema_t *sp)
-{
-       return down_trylock(sp) || (up(sp), 0);
-}
+#define valusema(sp)                   (atomic_read(&(sp)->count))
+#define freesema(sema)
 
 /*
  * Map cpsema (try to get the sema) to down_trylock. We need to switch
  * the return values since cpsema returns 1 (acquired) 0 (failed) and
  * down_trylock returns the reverse 0 (acquired) 1 (failed).
  */
-static inline int cpsema(sema_t *sp)
-{
-       return down_trylock(sp) ? 0 : 1;
-}
+
+#define cpsema(sp)                     (down_trylock(sp) ? 0 : 1)
+
+/*
+ * Didn't do cvsema(sp). Not sure how to map this to up/down/...
+ * It does a vsema if the values is < 0 other wise nothing.
+ */
 
 #endif /* __XFS_SUPPORT_SEMA_H__ */