kevin/linux
1
Fork 0
Code

io_uring/net: set MSG_ZEROCOPY for sendzc in advance

Browse Source 
We can set MSG_ZEROCOPY at the preparation step, do it so we don't have
to care about it later in the issue callback.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c2c22aaa577624977f045979a6db2b9fb2e5648c.1712534031.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2024-04-08 00:54:57 +01:00 committed by Jens Axboe
parent 6b7f864bb7
commit d285da7dbd
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
io_uring/net.c
View File

@ -1050,7 +1050,7 @@ int io_send_zc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
zc->buf = u64_to_user_ptr(READ_ONCE(sqe->addr));
zc->len = READ_ONCE(sqe->len);
zc->msg_flags = READ_ONCE(sqe->msg_flags) | MSG_NOSIGNAL;
zc->msg_flags = READ_ONCE(sqe->msg_flags) | MSG_NOSIGNAL | MSG_ZEROCOPY;
if (zc->msg_flags & MSG_DONTWAIT)
req->flags |= REQ_F_NOWAIT;
@ -1167,7 +1167,7 @@ int io_send_zc(struct io_kiocb *req, unsigned int issue_flags)
return ret;
}
msg_flags = zc->msg_flags | MSG_ZEROCOPY;
msg_flags = zc->msg_flags;
if (issue_flags & IO_URING_F_NONBLOCK)
msg_flags |= MSG_DONTWAIT;
if (msg_flags & MSG_WAITALL)
@ -1229,7 +1229,7 @@ int io_sendmsg_zc(struct io_kiocb *req, unsigned int issue_flags)
(sr->flags & IORING_RECVSEND_POLL_FIRST))
return -EAGAIN;
flags = sr->msg_flags | MSG_ZEROCOPY;
flags = sr->msg_flags;
if (issue_flags & IO_URING_F_NONBLOCK)
flags |= MSG_DONTWAIT;
if (flags & MSG_WAITALL)