linux-kernel - Re: [PATCH RFC 09/22] block, cfq: replace CFQ with the BFQ-v0 I/O scheduler

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Date:	Fri, 4 Mar 2016 09:39:47 -0800
From:	Christoph Hellwig <hch@...radead.org>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Tejun Heo <tj@...nel.org>,
	Paolo Valente <paolo.valente@...aro.org>,
	Jens Axboe <axboe@...nel.dk>,
	Fabio Checconi <fchecconi@...il.com>,
	Arianna Avanzini <avanzini.arianna@...il.com>,
	linux-block@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH RFC 09/22] block, cfq: replace CFQ with the BFQ-v0 I/O
 scheduler

On Sat, Mar 05, 2016 at 12:29:39AM +0700, Linus Walleij wrote:
> Hi Tejun,
> 
> I'm doing a summary of this discussion as a part of presenting
> Linaro's involvement in Paolo's work. So I try to understand things.

Btw, can someone explain why you guys waste so much time hacking and
arguing about a legacy codebase (old request code and I/O schedulers)
that everyone would really like to see disappear.  Why don't you
spend your time on blk-mq where you have an entirely clean slate
for scheduling?