From: Jens Axboe <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>
Subject: [PATCH 1/4] io_uring/net: initialize struct msghdr more sanely for io_recv()
Date: Wed, 17 May 2023 13:12:00 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
We only need to clear the input fields on the first invocation, not
when potentially doing a retry.
Signed-off-by: Jens Axboe <[email protected]>
---
io_uring/net.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/io_uring/net.c b/io_uring/net.c
index 89e839013837..08fe42673b75 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -860,6 +860,14 @@ int io_recv(struct io_kiocb *req, unsigned int issue_flags)
if (unlikely(!sock))
return -ENOTSOCK;
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_control = NULL;
+ msg.msg_get_inq = 1;
+ msg.msg_controllen = 0;
+ msg.msg_iocb = NULL;
+ msg.msg_ubuf = NULL;
+
retry_multishot:
if (io_do_buffer_select(req)) {
void __user *buf;
@@ -874,14 +882,7 @@ int io_recv(struct io_kiocb *req, unsigned int issue_flags)
if (unlikely(ret))
goto out_free;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = NULL;
- msg.msg_get_inq = 1;
msg.msg_flags = 0;
- msg.msg_controllen = 0;
- msg.msg_iocb = NULL;
- msg.msg_ubuf = NULL;
flags = sr->msg_flags;
if (force_nonblock)
--
2.39.2
next prev parent reply other threads:[~2023-05-17 19:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-17 19:11 [PATCHSET 0.4] Reduce overhead of multishot recv/recvmsg Jens Axboe
2023-05-17 19:12 ` Jens Axboe [this message]
2023-05-17 19:12 ` [PATCH 2/4] io_uring/net: initalize msghdr->msg_inq to known value Jens Axboe
2023-05-17 19:12 ` [PATCH 3/4] io_uring/net: push IORING_CQE_F_SOCK_NONEMPTY into io_recv_finish() Jens Axboe
2023-05-17 19:12 ` [PATCH 4/4] io_uring/net: don't retry recvmsg() unnecessarily Jens Axboe
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