Now that free_mnt_ns() works prior to mnt_ns_tree_add(), there's no need for
an open-coded analogue free_mnt_ns() there - yes, we do avoid one call_rcu()
use per failing call of clone() or unshare(), if they fail due to OOM in that
particular spot, but it's not really worth bothering.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index daa72292ea58..a418555586ef 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -4190,10 +4190,8 @@ struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
copy_flags |= CL_SLAVE;
new = copy_tree(old, old->mnt.mnt_root, copy_flags);
if (IS_ERR(new)) {
+ emptied_ns = new_ns;
namespace_unlock();
- ns_free_inum(&new_ns->ns);
- dec_mnt_namespaces(new_ns->ucounts);
- mnt_ns_release(new_ns);
return ERR_CAST(new);
}
if (user_ns != ns->user_ns) {
--
2.47.2
