linux-kernel - Re: [PATCH V13 08/10] mmc: block: blk-mq: Separate card polling from recovery

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Date:   Thu, 9 Nov 2017 09:56:30 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        linux-block <linux-block@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Bough Chen <haibo.chen@....com>,
        Alex Lemberg <alex.lemberg@...disk.com>,
        Mateusz Nowak <mateusz.nowak@...el.com>,
        Yuliy Izrailov <Yuliy.Izrailov@...disk.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Dong Aisheng <dongas86@...il.com>,
        Das Asutosh <asutoshd@...eaurora.org>,
        Zhangfei Gao <zhangfei.gao@...il.com>,
        Sahitya Tummala <stummala@...eaurora.org>,
        Harjani Ritesh <riteshh@...eaurora.org>,
        Venu Byravarasu <vbyravarasu@...dia.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH V13 08/10] mmc: block: blk-mq: Separate card polling from
 recovery

On 08/11/17 11:30, Linus Walleij wrote:
> On Fri, Nov 3, 2017 at 2:20 PM, Adrian Hunter <adrian.hunter@...el.com> wrote:
> 
>> Recovery is simpler to understand if it is only used for errors. Create a
>> separate function for card polling.
>>
>> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
> 
> This looks good but I can't see why it's not folded into
> patch 3 already. This error handling is introduced there.

What are you on about?  If we're going to split up the patches (which I
argued against - the new code is all new, so it could be read independently
from the old mess) then this is a logically distinct step.  Polling and
error-recovery are conceptually different things and it is important to
separate them to make the code easier to understand.