udp: Convert udp_sendpage() to use MSG_SPLICE_PAGES

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Convert udp_sendpage() to use sendmsg() with MSG_SPLICE_PAGES rather than
directly splicing in the pages itself.

This allows ->sendpage() to be replaced by something that can handle
multiple multipage folios in a single transaction.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
cc: David Ahern <dsahern@kernel.org>
cc: Jens Axboe <axboe@kernel.dk>
cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

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David Howells 2023-05-22 13:11:22 +01:00 • committed by Jakub Kicinski

parent 6d8192bd69

commit 7ac7c98785

1 changed files with 6 additions and 45 deletions

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net/ipv4/udp.c

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