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

[jianchao.wang]

Hi Sagi

Thanks for your kindly response and directive.
That's really appreciated.

On 02/11/2018 07:16 PM, Sagi Grimberg wrote:
>>       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?

Yes, I will use this interface next version, as well as the 1st patch.

Sincerely
Jianchao

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