Re: [PATCH 2/9] nvme: fix the deadlock in nvme_update_formats

[Sagi Grimberg]

        mutex_lock(&ctrl->namespaces_mutex);
        list_for_each_entry(ns, &ctrl->namespaces, list) {
-               if (ns->disk && nvme_revalidate_disk(ns->disk))
-                       nvme_ns_remove(ns);
+               if (ns->disk && nvme_revalidate_disk(ns->disk)) {
+                       list_del_init(&ns->list);
+                       list_add_tail(&ns->list, &rm_list);

list_move_tail?