X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-s390%2Frwsem.h;h=0422a085dd56a2d54d36cd46a190c54b7c7af4ac;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=8c0cebbfc034e2e26c46137e62f20436b644a8f3;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/include/asm-s390/rwsem.h b/include/asm-s390/rwsem.h
index 8c0cebbfc..0422a085d 100644
--- a/include/asm-s390/rwsem.h
+++ b/include/asm-s390/rwsem.h
@@ -351,5 +351,10 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
 	return new;
 }
 
+static inline int rwsem_is_locked(struct rw_semaphore *sem)
+{
+	return (sem->count != 0);
+}
+
 #endif /* __KERNEL__ */
 #endif /* _S390_RWSEM_H */