Unverified Commit 8a30420c authored by Christian Brauner's avatar Christian Brauner
Browse files

nstree: simplify owner list iteration 

Make use of list_for_each_entry_from_rcu().

Link: https://patch.msgid.link/20251110-work-namespace-nstree-fixes-v1-6-e8a9264e0fb9@kernel.org


Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent a657bc8a

kernel/nstree.c

+7 −3
Original line number Diff line number Diff line
@@ -598,11 +598,15 @@ static ssize_t do_listns_userns(struct klistns *kls) 
	rcu_read_lock();



	if (!first_ns)

		first_ns = list_entry_rcu(head->next, typeof(*ns), ns_owner_node.ns_list_entry);

	for (ns = first_ns; &ns->ns_owner_node.ns_list_entry != head && nr_ns_ids;

	     ns = list_entry_rcu(ns->ns_owner_node.ns_list_entry.next, typeof(*ns), ns_owner_node.ns_list_entry)) {

		first_ns = list_entry_rcu(head->next, typeof(*first_ns), ns_owner_node.ns_list_entry);



	ns = first_ns;

	list_for_each_entry_from_rcu(ns, head, ns_owner_node.ns_list_entry) {

		struct ns_common *valid;



		if (!nr_ns_ids)

			break;



		valid = legitimize_ns(kls, ns);

		if (!valid)

			continue;