Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...

[linux-2.6-block.git] / drivers / block / rbd.c

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 7f40cb4553c97bbf74f7acda32ce8a2b6313b83d..a6278e7e61a00bfde01bcb6726524ffb3a06514e 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2187,6 +2187,8 @@ static ssize_t rbd_add(struct bus_type *bus,
        INIT_LIST_HEAD(&rbd_dev->node);
        INIT_LIST_HEAD(&rbd_dev->snaps);
 
+       init_rwsem(&rbd_dev->header.snap_rwsem);
+
        /* generate unique id: find highest unique id, add one */
        mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);