new helpers: lock_mount_hash/unlock_mount_hash

aka br_write_{lock,unlock} of vfsmount_lock.  Inlines in fs/mount.h,
vfsmount_lock extern moved over there as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/pnode.c b/fs/pnode.c
index 3cfd48cf887e..58933fd149ad 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -264,12 +264,12 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
                 prev_src_mnt  = child;
         }
 out:
-        br_write_lock(&vfsmount_lock);
+        lock_mount_hash();
         while (!list_empty(&tmp_list)) {
                 child = list_first_entry(&tmp_list, struct mount, mnt_hash);
                 umount_tree(child, 0);
         }
-        br_write_unlock(&vfsmount_lock);
+        unlock_mount_hash();
         return ret;
 }