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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon, 10 Oct 2022 10:20:15 -0700
Message-ID: <CAHk-=whvmR98OHdYf4yOJgp86hq0VMVXJ9b1Qk7P_Rjq_=HU+A@mail.gmail.com>
Subject: Re: [PATCH 2/4] tee: Remove vmalloc page support
To:     Christoph Hellwig <hch@lst.de>
Cc:     Sumit Garg <sumit.garg@linaro.org>,
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        <Phil.Chang@mediatek.com>,
        "ira.weiny@intel.com" <ira.weiny@intel.com>,
        Jens Wiklander <jens.wiklander@linaro.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Al Viro <viro@zeniv.linux.org.uk>,
        "Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
        "op-tee@lists.trustedfirmware.org" <op-tee@lists.trustedfirmware.org>,
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On Mon, Oct 10, 2022 at 12:42 AM Christoph Hellwig <hch@lst.de> wrote:
>
> I suspect the best long term option would be to just pass an iov_iter..

Hmm. Yeah, that sounds like a workable model, and solves the problem
JensW pointed out with my simplistic "just pass a page array" approach
where you also need to keep track of how to release things.

                   Linus