From d9b441889c3595aa18f89ee42c6d22bb62234343 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 6 Mar 2024 07:57:57 -0700 Subject: [PATCH] io_uring/net: add io_req_msg_cleanup() helper For the fast inline path, we manually recycle the io_async_msghdr and free the iovec, and then clear the REQ_F_NEED_CLEANUP flag to avoid that needing doing in the slower path. We already do that in 2 spots, and in preparation for adding more, add a helper and use it. Signed-off-by: Jens Axboe --- io_uring/net.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/io_uring/net.c b/io_uring/net.c index 1928629d490b..f70e657b6f73 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -414,6 +414,17 @@ int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) return 0; } +static void io_req_msg_cleanup(struct io_kiocb *req, + struct io_async_msghdr *kmsg, + unsigned int issue_flags) +{ + req->flags &= ~REQ_F_NEED_CLEANUP; + /* fast path, check for non-NULL to avoid function call */ + if (kmsg->free_iov) + kfree(kmsg->free_iov); + io_netmsg_recycle(req, issue_flags); +} + int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags) { struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg); @@ -463,11 +474,7 @@ int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags) ret = -EINTR; req_set_fail(req); } - /* fast path, check for non-NULL to avoid function call */ - if (kmsg->free_iov) - kfree(kmsg->free_iov); - req->flags &= ~REQ_F_NEED_CLEANUP; - io_netmsg_recycle(req, issue_flags); + io_req_msg_cleanup(req, kmsg, issue_flags); if (ret >= 0) ret += sr->done_io; else if (sr->done_io) @@ -927,13 +934,9 @@ retry_multishot: if (!io_recv_finish(req, &ret, &kmsg->msg, mshot_finished, issue_flags)) goto retry_multishot; - if (mshot_finished) { - /* fast path, check for non-NULL to avoid function call */ - if (kmsg->free_iov) - kfree(kmsg->free_iov); - io_netmsg_recycle(req, issue_flags); - req->flags &= ~REQ_F_NEED_CLEANUP; - } else if (ret == -EAGAIN) + if (mshot_finished) + io_req_msg_cleanup(req, kmsg, issue_flags); + else if (ret == -EAGAIN) return io_setup_async_msg(req, kmsg, issue_flags); return ret;