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Date: Wed, 28 Feb 2024 14:22:00 +0100
From: Christoph Hellwig <hch@lst.de>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>, Christoph Hellwig <hch@lst.de>,
	Angelo Dureghello <angelo.dureghello@timesys.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Orson Zhai <orsonzhai@gmail.com>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	Chunyan Zhang <zhang.lyra@gmail.com>, linux-mmc@vger.kernel.org
Subject: Re: [PATCH] mmc: sdhci-esdhc-mcf: Flag if the sg_miter is atomic
Message-ID: <20240228132200.GA11438@lst.de>
References: <20240222-fix-sdhci-esdhc-mcf-v1-1-fb87e04ca575@linaro.org> <5c88e3f7-22e7-44d1-bf2e-5440e4de3b12@intel.com> <CACRpkdaRHz5LE_TpD7xkitX5ohafEvqOACx8PrEUuD-6oz-pUg@mail.gmail.com> <ce6709b3-b87a-4823-b4c8-b36f82195191@intel.com> <CACRpkdZwF1PYuaxDS5HTCPT==wyz=2K0t0Am_MXRF6KoXaVkMg@mail.gmail.com>
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User-Agent: Mutt/1.5.17 (2007-11-01)

On Wed, Feb 28, 2024 at 09:59:12AM +0100, Linus Walleij wrote:
> Aha, I'll send a simple patch just making the iteration atomic
> so we don't overwork this.
> 
> > As an aside, gotta wonder why there is not:
> >
> > #define SG_MITER_LOCAL_PAGE    (1 << 3)        /* use kmap_local_page */
> 
> That beats me, but Christoph probably has a good answer.

Probably just because no one got to it yet.