Re: [PATCH V5 2/7] blk-mq-sched: fix scheduler bad performance

To: Ming Lei <ming.lei@xxxxxxxxxx>
Subject: Re: [PATCH V5 2/7] blk-mq-sched: fix scheduler bad performance
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon, 2 Oct 2017 07:19:53 -0700
Cc: Jens Axboe <axboe@xxxxxx>, linux-block@xxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Mike Snitzer <snitzer@xxxxxxxxxx>, dm-devel@xxxxxxxxxx, Bart Van Assche <bart.vanassche@xxxxxxxxxxx>, Laurence Oberman <loberman@xxxxxxxxxx>, Paolo Valente <paolo.valente@xxxxxxxxxx>, Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx>, Tom Nguyen <tom81094@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, Omar Sandoval <osandov@xxxxxx>
In-reply-to: <20170930102720.30219-3-ming.lei@redhat.com>
User-agent: Mutt/1.8.3 (2017-05-23)

Looks fine,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

References:
- [PATCH V5 00/14] blk-mq-sched: improve sequential I/O performance(part 1)
  - From: Ming Lei
- [PATCH V5 2/7] blk-mq-sched: fix scheduler bad performance
  - From: Ming Lei