linux-kernel - Re: [PATCH net-next v5 03/16] ceph: Use sendmsg(MSG_SPLICE

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Message-ID: <3068221.1687788027@warthog.procyon.org.uk>
Date:   Mon, 26 Jun 2023 15:00:27 +0100
From:   David Howells <dhowells@...hat.com>
To:     Ilya Dryomov <idryomov@...il.com>
Cc:     dhowells@...hat.com, netdev@...r.kernel.org,
        Alexander Duyck <alexander.duyck@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        David Ahern <dsahern@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Jens Axboe <axboe@...nel.dk>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Xiubo Li <xiubli@...hat.com>,
        Jeff Layton <jlayton@...nel.org>, ceph-devel@...r.kernel.org
Subject: Re: [PATCH net-next v5 03/16] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage

Ilya Dryomov <idryomov@...il.com> wrote:

> Same here...  I would suggest that you keep ceph_tcp_sendpage() function
> and make only minimal modifications to avoid regressions.

This is now committed to net-next.  I can bring ceph_tcp_sendpage() back into
existence or fix it in place for now if you have a preference.

Note that I'm working on patches to rework the libceph transmission path so
that it isn't dealing with transmitting a single page at a time, but it's not
ready yet.

David