as it is, a failed move_mount(2) from anon namespace breaks
all further propagation into that namespace, including normal
mounts in non-anon namespaces that would otherwise propagate
there.
Fixes: 064fe6e233e8 ("mount: handle mount propagation for detached mount trees")
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index d8a344d0a80a..04a9bb9f31fa 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3715,15 +3715,14 @@ static int do_move_mount(struct path *old_path,
if (err)
goto out;
- if (is_anon_ns(ns))
- ns->mntns_flags &= ~MNTNS_PROPAGATING;
-
/* if the mount is moved, it should no longer be expire
* automatically */
list_del_init(&old->mnt_expire);
if (attached)
put_mountpoint(old_mp);
out:
+ if (is_anon_ns(ns))
+ ns->mntns_flags &= ~MNTNS_PROPAGATING;
unlock_mount(mp);
if (!err) {
if (attached) {
--
2.39.5
