[POWERPC] New device-tree interrupt parsing code

[pandora-kernel.git] / include / asm-powerpc / rwsem.h

diff --git a/include/asm-powerpc/rwsem.h b/include/asm-powerpc/rwsem.h
index 0a5b83a..2c2fe96 100644 (file)
--- a/include/asm-powerpc/rwsem.h
+++ b/include/asm-powerpc/rwsem.h
@@ -4,7 +4,7 @@
 #ifdef __KERNEL__
 
 /*
- * include/asm-ppc64/rwsem.h: R/W semaphores for PPC using the stuff
+ * include/asm-powerpc/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>.
  */
@@ -159,5 +159,10 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
        return atomic_add_return(delta, (atomic_t *)(&sem->count));
 }
 
+static inline int rwsem_is_locked(struct rw_semaphore *sem)
+{
+       return (sem->count != 0);
+}
+
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_RWSEM_H */