Re: [PATCH 1/5] nvme: Add more command status translation

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On 01/08/2018 10:55 AM, Christoph Hellwig wrote:
> On Thu, Jan 04, 2018 at 03:46:19PM -0700, Keith Busch wrote:
>> This adds more NVMe status code translations to blk_status_t values,
>> and captures all the current status codes NVMe multipath uses.
>>
>> Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx>
>> ---
>>  drivers/nvme/host/core.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
>> index 2a69d735efbc..f1cf1f6c5b28 100644
>> --- a/drivers/nvme/host/core.c
>> +++ b/drivers/nvme/host/core.c
>> @@ -156,14 +156,20 @@ static blk_status_t nvme_error_status(struct request *req)
>>  	case NVME_SC_SUCCESS:
>>  		return BLK_STS_OK;
>>  	case NVME_SC_CAP_EXCEEDED:
>> +	case NVME_SC_LBA_RANGE:
>>  		return BLK_STS_NOSPC;
> 
> lba range isn't really enospc.  It is returned when the lba in
> the command is outside the logical size of the namespace.
> 
Isn't that distinction pretty academic?
The entire block-to-POSIX error mapping is pretty much ad-hoc anyway...

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
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SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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