From:   Ammar Faizi <ammarfaizi2@gmail.com>
To:     Jens Axboe <axboe@kernel.dk>
Cc:     io-uring Mailing List <io-uring@vger.kernel.org>,
        Pavel Begunkov <asml.silence@gmail.com>,
        "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, Ammar Faizi <ammarfaizi2@gmail.com>,
        Nugra <richiisei@gmail.com>
Subject: [RFC PATCH v2 1/3] io_uring: Rename `io_{send,recv}` to `io_{sendto,recvfrom}`
Date:   Thu, 30 Dec 2021 19:00:42 +0700
Message-Id: <20211230115057.139187-1-ammar.faizi@intel.com>
In-Reply-To: <20211230114846.137954-1-ammar.faizi@intel.com>
References: <20211230114846.137954-1-ammar.faizi@intel.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Currently we can perform `send` and `recv` via io_uring. And now, we
are going to add `sendto` and `recvfrom` support for io_uring.

Note that:
  Calling `send(fd, buf, len, flags)` is equivalent to calling
  `sendto(fd, buf, len, flags, NULL, 0)`. Therefore, `sendto`
  is a superset of `send`.

  Calling `recv(fd, buf, len, flags)` is equivalent to calling
  `recvfrom(fd, buf, len, flags, NULL, NULL)`. Therefore, `recvfrom`
  is a superset of `recv`.

As such, let's direct the current supported `IORING_OP_{SEND,RECV}` to
`io_{sendto,recvfrom}`. These functions will also be used for
`IORING_OP_{SENDTO,RECVFROM}` operation in the next patches.

Cc: Nugra <richiisei@gmail.com>
Signed-off-by: Ammar Faizi <ammarfaizi2@gmail.com>
---
 fs/io_uring.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 90002bb3fdf4..d564f98d5d3b 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5273,7 +5273,7 @@ static int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags)
 	return 0;
 }
 
-static int io_send(struct io_kiocb *req, unsigned int issue_flags)
+static int io_sendto(struct io_kiocb *req, unsigned int issue_flags)
 {
 	struct io_sr_msg *sr = &req->sr_msg;
 	struct msghdr msg;
@@ -5499,7 +5499,7 @@ static int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags)
 	return 0;
 }
 
-static int io_recv(struct io_kiocb *req, unsigned int issue_flags)
+static int io_recvfrom(struct io_kiocb *req, unsigned int issue_flags)
 {
 	struct io_buffer *kbuf;
 	struct io_sr_msg *sr = &req->sr_msg;
@@ -7061,13 +7061,13 @@ static int io_issue_sqe(struct io_kiocb *req, unsigned int issue_flags)
 		ret = io_sendmsg(req, issue_flags);
 		break;
 	case IORING_OP_SEND:
-		ret = io_send(req, issue_flags);
+		ret = io_sendto(req, issue_flags);
 		break;
 	case IORING_OP_RECVMSG:
 		ret = io_recvmsg(req, issue_flags);
 		break;
 	case IORING_OP_RECV:
-		ret = io_recv(req, issue_flags);
+		ret = io_recvfrom(req, issue_flags);
 		break;
 	case IORING_OP_TIMEOUT:
 		ret = io_timeout(req, issue_flags);
-- 
2.32.0