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sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)

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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@redhat.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for net/can
cc: Jens Axboe <axboe@kernel.dk>
cc: Matthew Wilcox <willy@infradead.org>
cc: linux-afs@lists.infradead.org
cc: mptcp@lists.linux.dev
cc: rds-devel@oss.oracle.com
cc: tipc-discussion@lists.sourceforge.net
cc: virtualization@lists.linux-foundation.org
Link: https://lore.kernel.org/r/20230623225513.2732256-16-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
David Howells
2023-06-23 23:55:12 +01:00
committed by Jakub Kicinski
parent e52828cc01
commit dc97391e66
66 changed files with 20 additions and 442 deletions
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8
include/linux/net.h
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@@ -207,8 +207,6 @@ struct proto_ops {
size_t total_len, int flags);
int (*mmap) (struct file *file, struct socket *sock,
struct vm_area_struct * vma);
ssize_t (*sendpage) (struct socket *sock, struct page *page,
int offset, size_t size, int flags);
ssize_t (*splice_read)(struct socket *sock, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len, unsigned int flags);
void (*splice_eof)(struct socket *sock);
@@ -222,8 +220,6 @@ struct proto_ops {
sk_read_actor_t recv_actor);
/* This is different from read_sock(), it reads an entire skb at a time. */
int (*read_skb)(struct sock *sk, skb_read_actor_t recv_actor);
int (*sendpage_locked)(struct sock *sk, struct page *page,
int offset, size_t size, int flags);
int (*sendmsg_locked)(struct sock *sk, struct msghdr *msg,
size_t size);
int (*set_rcvlowat)(struct sock *sk, int val);
@@ -341,10 +337,6 @@ int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags);
int kernel_sendpage_locked(struct sock *sk, struct page *page, int offset,
size_t size, int flags);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how);
/* Routine returns the IP overhead imposed by a (caller-protected) socket. */