From: Ingo Molnar <mingo@elte.hu>

rwsem build fix for non-x86 architectures which use their own asm/rwsem.h
and have no __init_rwsem method yet.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 include/linux/rwsem.h |    4 ++++
 1 file changed, 4 insertions(+)

diff -puN include/linux/rwsem.h~lock-validator-special-locking-sb-s_umount-2-fix include/linux/rwsem.h
--- devel/include/linux/rwsem.h~lock-validator-special-locking-sb-s_umount-2-fix	2006-05-30 03:27:16.000000000 -0700
+++ devel-akpm/include/linux/rwsem.h	2006-05-30 03:27:16.000000000 -0700
@@ -30,8 +30,12 @@ struct rw_semaphore;
  * Lockdep: type splitting can also be done for dynamic locks, if for
  * example there are per-CPU dynamically allocated locks:
  */
+#ifdef CONFIG_PROVE_RWSEM_LOCKING
 #define init_rwsem_key(sem, key)				\
 	__init_rwsem((sem), #sem, key)
+#else
+# define init_rwsem_key(sem, key)	init_rwsem(sem)
+#endif
 
 #ifndef rwsemtrace
 #if RWSEM_DEBUG
_