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Date: Wed, 29 Mar 2023 16:23:51 +0200
From: Hannes Reinecke <hare@...e.de>
To: David Howells <dhowells@...hat.com>,
Matthew Wilcox <willy@...radead.org>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: linux-doc@...r.kernel.org,
virtualization@...ts.linux-foundation.org, linux-mm@...ck.org,
linux-sctp@...r.kernel.org, linux-afs@...ts.infradead.org,
rds-devel@....oracle.com, linux-x25@...r.kernel.org,
dccp@...r.kernel.org, linux-rdma@...r.kernel.org,
Christoph Hellwig <hch@...radead.org>,
linux-wpan@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-can@...r.kernel.org, Marc Kleine-Budde <mkl@...gutronix.de>,
Al Viro <viro@...iv.linux.org.uk>, linux-hams@...r.kernel.org,
mptcp@...ts.linux.dev, Jens Axboe <axboe@...nel.dk>,
Christian Brauner <brauner@...nel.org>, netdev@...r.kernel.org,
Jeff Layton <jlayton@...nel.org>, linux-kernel@...r.kernel.org,
Chuck Lever III <chuck.lever@...cle.com>,
tipc-discussion@...ts.sourceforge.net,
linux-crypto@...r.kernel.org, linux-fsdevel@...r.kernel.org,
bpf@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [RFC PATCH v2 48/48] sock: Remove ->sendpage*() in favour of
sendmsg(MSG_SPLICE_PAGES)
On 3/29/23 16:13, David Howells wrote:
> [!] Note: This is a work in progress. At the moment, some things won't
> build if this patch is applied. nvme, kcm, smc, tls.
>
> Remove ->sendpage() and ->sendpage_locked(). sendmsg() with
> MSG_SPLICE_PAGES should be used instead. This allows multiple pages and
> multipage folios to be passed through.
>
> Signed-off-by: David Howells <dhowells@...hat.com>
> Acked-by: Marc Kleine-Budde <mkl@...gutronix.de> # for net/can
> cc: "David S. Miller" <davem@...emloft.net>
> cc: Eric Dumazet <edumazet@...gle.com>
> cc: Jakub Kicinski <kuba@...nel.org>
> cc: Paolo Abeni <pabeni@...hat.com>
> cc: Jens Axboe <axboe@...nel.dk>
> cc: Matthew Wilcox <willy@...radead.org>
> cc: bpf@...r.kernel.org
> cc: dccp@...r.kernel.org
> cc: linux-afs@...ts.infradead.org
> cc: linux-arm-msm@...r.kernel.org
> cc: linux-can@...r.kernel.org
> cc: linux-crypto@...r.kernel.org
> cc: linux-doc@...r.kernel.org
> cc: linux-hams@...r.kernel.org
> cc: linux-kernel@...r.kernel.org
> cc: linux-rdma@...r.kernel.org
> cc: linux-sctp@...r.kernel.org
> cc: linux-wpan@...r.kernel.org
> cc: linux-x25@...r.kernel.org
> cc: mptcp@...ts.linux.dev
> cc: netdev@...r.kernel.org
> cc: rds-devel@....oracle.com
> cc: tipc-discussion@...ts.sourceforge.net
> cc: virtualization@...ts.linux-foundation.org
> ---
> Documentation/networking/scaling.rst | 4 +-
> crypto/af_alg.c | 29 ------
> crypto/algif_aead.c | 22 +----
> crypto/algif_rng.c | 2 -
> crypto/algif_skcipher.c | 14 ---
> include/linux/net.h | 8 --
> include/net/inet_common.h | 2 -
> include/net/sock.h | 6 --
> net/appletalk/ddp.c | 1 -
> net/atm/pvc.c | 1 -
> net/atm/svc.c | 1 -
> net/ax25/af_ax25.c | 1 -
> net/caif/caif_socket.c | 2 -
> net/can/bcm.c | 1 -
> net/can/isotp.c | 1 -
> net/can/j1939/socket.c | 1 -
> net/can/raw.c | 1 -
> net/core/sock.c | 35 +------
> net/dccp/ipv4.c | 1 -
> net/dccp/ipv6.c | 1 -
> net/ieee802154/socket.c | 2 -
> net/ipv4/af_inet.c | 21 ----
> net/ipv4/tcp.c | 34 -------
> net/ipv4/tcp_bpf.c | 21 +---
> net/ipv4/tcp_ipv4.c | 1 -
> net/ipv4/udp.c | 22 -----
> net/ipv4/udp_impl.h | 2 -
> net/ipv4/udplite.c | 1 -
> net/ipv6/af_inet6.c | 3 -
> net/ipv6/raw.c | 1 -
> net/ipv6/tcp_ipv6.c | 1 -
> net/key/af_key.c | 1 -
> net/l2tp/l2tp_ip.c | 1 -
> net/l2tp/l2tp_ip6.c | 1 -
> net/llc/af_llc.c | 1 -
> net/mctp/af_mctp.c | 1 -
> net/mptcp/protocol.c | 2 -
> net/netlink/af_netlink.c | 1 -
> net/netrom/af_netrom.c | 1 -
> net/packet/af_packet.c | 2 -
> net/phonet/socket.c | 2 -
> net/qrtr/af_qrtr.c | 1 -
> net/rds/af_rds.c | 1 -
> net/rose/af_rose.c | 1 -
> net/rxrpc/af_rxrpc.c | 1 -
> net/sctp/protocol.c | 1 -
> net/socket.c | 48 ---------
> net/tipc/socket.c | 3 -
> net/unix/af_unix.c | 139 ---------------------------
> net/vmw_vsock/af_vsock.c | 3 -
> net/x25/af_x25.c | 1 -
> net/xdp/xsk.c | 1 -
> 52 files changed, 9 insertions(+), 447 deletions(-)
>
Weelll ... what happens to consumers of kernel_sendpage()?
(Let's call them nvme ...)
Should they be moved over, too?
Or what is the general consensus here?
(And what do we do with TLS? It does have a ->sendpage() version, too ...)
Cheers,
Hannes
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