5985 static ssize_t do_listmount(struct klistmount *kls, bool reverse)  in do_listmount()  argument
5987 	struct mnt_namespace *ns = kls->ns;  in do_listmount()
5988 	u64 mnt_parent_id = kls->mnt_parent_id;  in do_listmount()
5989 	u64 last_mnt_id = kls->last_mnt_id;  in do_listmount()
5990 	u64 *mnt_ids = kls->kmnt_ids;  in do_listmount()
5991 	size_t nr_mnt_ids = kls->nr_mnt_ids;  in do_listmount()
5998 	ret = grab_requested_root(ns, &kls->root);  in do_listmount()
6003 		orig = kls->root;  in do_listmount()
6015 	if (!is_path_reachable(real_mount(orig.mnt), orig.dentry, &kls->root) &&  in do_listmount()
6048 static void __free_klistmount_free(const struct klistmount *kls)  in __free_klistmount_free()  argument
6050 	path_put(&kls->root);  in __free_klistmount_free()
6051 	kvfree(kls->kmnt_ids);  in __free_klistmount_free()
6052 	mnt_ns_release(kls->ns);  in __free_klistmount_free()
6055 static inline int prepare_klistmount(struct klistmount *kls, struct mnt_id_req *kreq,  in prepare_klistmount()  argument
6065 	kls->last_mnt_id = last_mnt_id;  in prepare_klistmount()
6067 	kls->nr_mnt_ids = nr_mnt_ids;  in prepare_klistmount()
6068 	kls->kmnt_ids = kvmalloc_array(nr_mnt_ids, sizeof(*kls->kmnt_ids),  in prepare_klistmount()
6070 	if (!kls->kmnt_ids)  in prepare_klistmount()
6076 	kls->ns = ns;  in prepare_klistmount()
6078 	kls->mnt_parent_id = kreq->mnt_id;  in prepare_klistmount()
6085 	struct klistmount kls __free(klistmount_free) = {};  in SYSCALL_DEFINE4()
6108 	ret = prepare_klistmount(&kls, &kreq, nr_mnt_ids);  in SYSCALL_DEFINE4()
6112 	if (kreq.mnt_ns_id && (kls.ns != current->nsproxy->mnt_ns) &&  in SYSCALL_DEFINE4()
6113 	    !ns_capable_noaudit(kls.ns->user_ns, CAP_SYS_ADMIN))  in SYSCALL_DEFINE4()
6121 		ret = do_listmount(&kls, (flags & LISTMOUNT_REVERSE));  in SYSCALL_DEFINE4()
6125 	if (copy_to_user(mnt_ids, kls.kmnt_ids, ret * sizeof(*mnt_ids)))  in SYSCALL_DEFINE4()