linux-kernel - Re: [PATCH 05/11] mmc: s3cmci: handle highmem pages

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Message-ID: <20190130080423.GA29937@lst.de>
Date:   Wed, 30 Jan 2019 09:04:23 +0100
From:   Christoph Hellwig <hch@....de>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Christoph Hellwig <hch@....de>,
        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: [PATCH 05/11] mmc: s3cmci: handle highmem pages

On Wed, Jan 30, 2019 at 08:57:47AM +0100, Ulf Hansson wrote:
> On Mon, 14 Jan 2019 at 10:58, Christoph Hellwig <hch@....de> wrote:
> >
> > Instead of setting up a kernel pointer to track the current PIO address,
> > track the offset in the current page, and do an atomic kmap for the page
> > while doing the actual PIO operations.
> >
> > Signed-off-by: Christoph Hellwig <hch@....de>
> 
> Nitpick: This one have some trailing whitespace errors, which git
> complains about when I apply it.
> 
> No need to re-spin due to this, I can fix it  up.

I'll need to respin to limit the segment size to a page anyway, so I
will take this into account as well for v2.