[RFC v3 1/1] nvme: add passthrough error logging opt-in

[Sagi Grimberg]

>>>>> +    if (!nr->ctrl->error_logging)
>>>>> +        req->rq_flags |= RQF_QUIET;
>>>>> +
>>>>> +    memcpy(nr->cmd, cmd, sizeof(*cmd));
>>>>
>>>> Question, if we already introduce granularity to this setting, why
>>>> not per-ns? why only per controller? I'd think it makes more
>>>> sense to do this per ns. Will also remove access to ctrl in the hot
>>>> path...
>>>
>>>
>>> Meaning we should have both:
>>>
>>> /sys/class/nvme/nvme0/passthrough_logging
>>>
>>> /sys/class/nvme/nvme0/nvme0n1/passthrough_logging
>>
>> No, just the namespace logging, why would we need the
>> controller as well?
> 
> For Admin Commands?

Yea.... you have those...