Re: [PATCH] blk-iolatency: only account submitted bios

From: Jens Axboe
Date: Thu Jun 20 2019 - 05:35:08 EST

On 5/23/19 2:10 PM, Dennis Zhou wrote:
> As is, iolatency recognizes done_bio and cleanup as ending paths. If a
> request is marked REQ_NOWAIT and fails to get a request, the bio is
> cleaned up via rq_qos_cleanup() and ended in bio_wouldblock_error().
> This results in underflowing the inflight counter. Fix this by only
> accounting bios that were actually submitted.

Looks good to me, applied.

Jens Axboe