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SubjectRe: [PATCH 2/9] nvme: fix the deadlock in nvme_update_formats
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>   	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?

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