linux-kernel - Re: remove block layer bounce buffering for MMC v2

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Message-ID: <CAPDyKFrKkmzrH++g88JLxbLkJh3iTUXfjjuxysr0iEigjYA5ig@mail.gmail.com>
Date:   Fri, 8 Mar 2019 10:43:48 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Russell King <linux@...linux.org.uk>,
        Nicolas Pitre <nico@...xnic.net>,
        Aaro Koskinen <aaro.koskinen@....fi>,
        Ben Dooks <ben-linux@...ff.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-omap <linux-omap@...r.kernel.org>,
        "list@....net:IOMMU DRIVERS <iommu@...ts.linux-foundation.org>, Joerg
        Roedel <joro@...tes.org>," <iommu@...ts.linux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: remove block layer bounce buffering for MMC v2

On Fri, 8 Mar 2019 at 10:18, Christoph Hellwig <hch@....de> wrote:
>
> On Mon, Feb 25, 2019 at 02:54:13PM +0100, Ulf Hansson wrote:
> > This looks good to me, however the lack of feedback/tests worries me a
> > bit. So, unless you think it's a bad idea, I intend to apply this when
> > v5.1 rc1 is out, which allows a lengthy test period in linux-next.
>
> Please don't rush to merge this.  Based on a talk to some folks I
> have an idea for a sg iterator that can hide the kmapping from
> the drivers, which should allow for some less scary driver code and
> clean this up a bit further.

Okay, I see. Thanks for letting me know!

Kind regards
Uffe