netdev - Re: [RFC 1/6] net: extend ubuf_info callback to ops structure

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Date: Sat, 13 Apr 2024 11:17:35 -0600
From: David Ahern <dsahern@...nel.org>
To: Pavel Begunkov <asml.silence@...il.com>, io-uring@...r.kernel.org,
 netdev@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>, "David S . Miller" <davem@...emloft.net>,
 Jakub Kicinski <kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>,
 Willem de Bruijn <willemdebruijn.kernel@...il.com>
Subject: Re: [RFC 1/6] net: extend ubuf_info callback to ops structure

On 4/12/24 6:55 AM, Pavel Begunkov wrote:
> We'll need to associate additional callbacks with ubuf_info, introduce
> a structure holding ubuf_info callbacks. Apart from a more smarter
> io_uring notification management introduced in next patches, it can be
> used to generalise msg_zerocopy_put_abort() and also store
> ->sg_from_iter, which is currently passed in struct msghdr.
> 
> Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
> ---
>  drivers/net/tap.c      |  2 +-
>  drivers/net/tun.c      |  2 +-
>  drivers/vhost/net.c    |  8 ++++++--
>  include/linux/skbuff.h | 19 +++++++++++--------
>  io_uring/notif.c       |  8 ++++++--
>  net/core/skbuff.c      | 17 +++++++++++------
>  6 files changed, 36 insertions(+), 20 deletions(-)
> 

Reviewed-by: David Ahern <dsahern@...nel.org>