linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / include / asm-powerpc / rwsem.h

diff --git a/include/asm-powerpc/rwsem.h b/include/asm-powerpc/rwsem.h
index e929145..79bae49 100644 (file)
--- a/include/asm-powerpc/rwsem.h
+++ b/include/asm-powerpc/rwsem.h
@@ -4,7 +4,7 @@
 #ifdef __KERNEL__
 
 /*
- * include/asm-powerpc/rwsem.h: R/W semaphores for PPC using the stuff
+ * include/asm-ppc64/rwsem.h: R/W semaphores for PPC using the stuff
  * in lib/rwsem.c.  Adapted largely from include/asm-i386/rwsem.h
  * by Paul Mackerras <paulus@samba.org>.
  */
@@ -28,11 +28,24 @@ struct rw_semaphore {
 #define RWSEM_ACTIVE_WRITE_BIAS                (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
        spinlock_t              wait_lock;
        struct list_head        wait_list;
+#if RWSEM_DEBUG
+       int                     debug;
+#endif
 };
 
+/*
+ * initialisation
+ */
+#if RWSEM_DEBUG
+#define __RWSEM_DEBUG_INIT      , 0
+#else
+#define __RWSEM_DEBUG_INIT     /* */
+#endif
+
 #define __RWSEM_INITIALIZER(name) \
        { RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, \
-         LIST_HEAD_INIT((name).wait_list) }
+         LIST_HEAD_INIT((name).wait_list) \
+         __RWSEM_DEBUG_INIT }
 
 #define DECLARE_RWSEM(name)            \
        struct rw_semaphore name = __RWSEM_INITIALIZER(name)
@@ -47,6 +60,9 @@ static inline void init_rwsem(struct rw_semaphore *sem)
        sem->count = RWSEM_UNLOCKED_VALUE;
        spin_lock_init(&sem->wait_lock);
        INIT_LIST_HEAD(&sem->wait_list);
+#if RWSEM_DEBUG
+       sem->debug = 0;
+#endif
 }
 
 /*