Re: [dm-devel] [PATCH v5] blk-mq: introduce BLK_STS_DEV_RESOURCE

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On 1/30/18 8:21 PM, Bart Van Assche wrote:
> On Tue, 2018-01-30 at 20:17 -0700, Jens Axboe wrote:
>> BLK_STS_RESOURCE should always be safe to return, and it should work
>> the same as STS_DEV_RESOURCE, except it may cause an extra queue
>> run.
>>
>> Well written drivers should use STS_DEV_RESOURCE where it makes
>> sense.
> 
> Hello Jens,
> 
> I would appreciate it if other names would be chosen than BLK_STS_RESOURCE
> and BLK_STS_DEV_RESOURCE, e.g. names that directly refer to the fact that
> one of the two status codes causes the queue to be rerun and the other not.
> I'm afraid that the currently chosen names will cause confusion.

DEV_RESOURCE is pretty clear I think, but I agree that STS_RESOURCE
could perhaps be better. STS_SYSTEM_RESOURCE? It makes the distinction
a bit clearer.

-- 
Jens Axboe




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