do_remount(): pull touch_mnt_namespace() up
... and don't bother with dropping and regaining vfsmount_lock
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/namespace.c b/fs/namespace.c
index 17ff147..3ee6e59 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1849,14 +1849,10 @@
br_write_lock(&vfsmount_lock);
mnt_flags |= mnt->mnt.mnt_flags & MNT_PROPAGATION_MASK;
mnt->mnt.mnt_flags = mnt_flags;
- br_write_unlock(&vfsmount_lock);
- }
- up_write(&sb->s_umount);
- if (!err) {
- br_write_lock(&vfsmount_lock);
touch_mnt_namespace(mnt->mnt_ns);
br_write_unlock(&vfsmount_lock);
}
+ up_write(&sb->s_umount);
return err;
}