[PATCH 04/25] nvme: split nvme status from block req->errors

[Johannes Thumshirn]

On Thu, Apr 06, 2017 at 05:39:23PM +0200, Christoph Hellwig wrote:
> We want our own clearly defined error field for NVMe passthrough commands,
> and the request errors field is going away in its current form.
> 
> Just store the status and result field in the nvme_request field from
> hardirq completion context (using a new helper) and then generate a
> Linux errno for the block layer only when we actually need it.
> 
> Because we can't overload the status value with a negative error code
> for cancelled command we now have a flags filed in struct nvme_request
> that contains a bit for this condition.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---

Looks good,
Reviewed-by: Johannes Thumshirn <jthumshirn at suse.de>

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