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io_uring/net: open code io_sendmsg_copy_hdr()

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io_sendmsg_setup() is trivial and io_sendmsg_copy_hdr() doesn't add
any good abstraction, open code one into another.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/565318ce585665e88053663eeee5178d2c15692f.1743202294.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2025-03-28 23:10:54 +00:00 committed by Jens Axboe
parent 00cfc05cf8
commit a20b8631c8
1 changed files with 10 additions and 20 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

30
io_uring/net.c
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@ -325,25 +325,6 @@ static int io_msg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg,
return 0;
}
static int io_sendmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct user_msghdr msg;
int ret;
ret = io_msg_copy_hdr(req, iomsg, &msg, ITER_SOURCE, NULL);
if (unlikely(ret))
return ret;
if (!(req->flags & REQ_F_BUFFER_SELECT))
ret = io_net_import_vec(req, iomsg, msg.msg_iov, msg.msg_iovlen,
ITER_SOURCE);
/* save msg_control as sys_sendmsg() overwrites it */
sr->msg_control = iomsg->msg.msg_control_user;
return ret;
}
void io_sendmsg_recvmsg_cleanup(struct io_kiocb *req)
{
struct io_async_msghdr *io = req->async_data;
@ -392,10 +373,19 @@ static int io_sendmsg_setup(struct io_kiocb *req, const struct io_uring_sqe *sqe
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct io_async_msghdr *kmsg = req->async_data;
struct user_msghdr msg;
int ret;
sr->umsg = u64_to_user_ptr(READ_ONCE(sqe->addr));
ret = io_msg_copy_hdr(req, kmsg, &msg, ITER_SOURCE, NULL);
if (unlikely(ret))
return ret;
/* save msg_control as sys_sendmsg() overwrites it */
sr->msg_control = kmsg->msg.msg_control_user;
return io_sendmsg_copy_hdr(req, kmsg);
if (req->flags & REQ_F_BUFFER_SELECT)
return 0;
return io_net_import_vec(req, kmsg, msg.msg_iov, msg.msg_iovlen, ITER_SOURCE);
}
static int io_sendmsg_zc_setup(struct io_kiocb *req, const struct io_uring_sqe *sqe)