linux-kernel - Re: [PATCH v14 00/17] iov_iter: Improve page extraction (pin or just list)

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Message-ID: <3370186.1676475783@warthog.procyon.org.uk>
Date:   Wed, 15 Feb 2023 15:43:03 +0000
From:   David Howells <dhowells@...hat.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     dhowells@...hat.com, Jens Axboe <axboe@...nel.dk>,
        smfrench@...il.com, Al Viro <viro@...iv.linux.org.uk>,
        Matthew Wilcox <willy@...radead.org>, Jan Kara <jack@...e.cz>,
        Jeff Layton <jlayton@...nel.org>,
        David Hildenbrand <david@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Hillf Danton <hdanton@...a.com>, linux-fsdevel@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH v14 00/17] iov_iter: Improve page extraction (pin or just list)

Christoph Hellwig <hch@...radead.org> wrote:

> And who is using filemap_splice_read directly anyway?  I can't find a
> modular user in any of the branches.

Fair point.  I have a subset of the patches on my iov-cifs branch that doesn't
make the change to generic_file_read_splice(), but rather does that bit in
cifs.ko - that does require access to filemap_splice_read().

David