linux-kernel - Re: [PATCH net-next v3 01/18] net: Copy slab data for sendmsg(MSG_SPLICE

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Message-ID: <2048548.1687514811@warthog.procyon.org.uk>
Date:   Fri, 23 Jun 2023 11:06:51 +0100
From:   David Howells <dhowells@...hat.com>
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     dhowells@...hat.com, Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
        Alexander Duyck <alexander.duyck@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        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, Menglong Dong <imagedong@...cent.com>
Subject: Re: [PATCH net-next v3 01/18] net: Copy slab data for sendmsg(MSG_SPLICE_PAGES)

Paolo Abeni <pabeni@...hat.com> wrote:

> I'm unsure I follow the above ?!? I *thought* sendpage could be killed
> even without patch 1/18 and 2/18, leaving some patches in this series
> unmodified, and mangling those explicitly leveraging 1/18 to use
> multiple sendmsg()s with different flags?

That's what I meant.

With the example, I was showing the minimum needed replacement for a call to
sendpage.

David