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    Subject[RFC PATCH v1 1/3] io_uring: Rename `io_{send,recv}` to `io_{sendto,recvfrom}`
    Date
    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.

    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
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