[PATCH] nvme/pci: Poll CQ on timeout

[Johannes Thumshirn]

On Tue, Feb 28, 2017 at 10:44:21AM -0700, Jens Axboe wrote:
> IMHO that can go at a later time, if we do remove polling for
> specific entries. For now it's fine.
> 
> And I do think this is a nice addition - it's free, and it provides
> us extra info for debugging an issue. That's a big deal, especially
> if it's a user report.

JFYI, we did have I/O timeout issues on one of our internal systems.
Keith suggested to give this patch a shot and indeed it cought missed IRQs,
which after being polled at least didn't result in filesystem errors.

So if you want you can have my:
Tested-by: Johannes Thumshirn <jthumshirn at suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn at suse.de>

-- 
Johannes Thumshirn                                          Storage
jthumshirn at suse.de                                +49 911 74053 689
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