clean fit; guards can't be weaker due to umount_tree() call.
Setting emptied_ns requires namespace_excl, but not anything
mount_lock-related.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index 898a6b7307e4..86a86be2b0ef 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -6153,12 +6153,10 @@ void put_mnt_ns(struct mnt_namespace *ns)
{
if (!refcount_dec_and_test(&ns->ns.count))
return;
- namespace_lock();
+ guard(namespace_excl)();
emptied_ns = ns;
- lock_mount_hash();
+ guard(mount_writer)();
umount_tree(ns->root, 0);
- unlock_mount_hash();
- namespace_unlock();
}
struct vfsmount *kern_mount(struct file_system_type *type)
--
2.47.2
