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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-09-21 14:17:48 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-09-21 22:15:02 +0300 |
| commit | 7e6b638ed501cced4e472298d6b08dd16346f3a6 (patch) | |
| tree | 3086b93c3a87b1c1437ecd82773a958200f7cd19 /io_uring | |
| parent | 47b4c68660752facfa6247b1fc9ca9d722b8b601 (diff) | |
| download | linux-7e6b638ed501cced4e472298d6b08dd16346f3a6.tar.xz | |
io_uring/net: don't lose partial send/recv on fail
Just as with rw, partial send/recv may end up in
io_req_complete_failed() and loose the result, make sure we return the
number of bytes processed.
Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a4ff95897b5419356fca9ea55db91ac15b2975f9.1663668091.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/net.c | 10 | ||||
| -rw-r--r-- | io_uring/net.h | 2 | ||||
| -rw-r--r-- | io_uring/opdef.c | 4 |
3 files changed, 16 insertions, 0 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index 97168c7ace26..4aabd476499c 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -1093,6 +1093,16 @@ int io_sendzc(struct io_kiocb *req, unsigned int issue_flags) return IOU_OK; } +void io_sendrecv_fail(struct io_kiocb *req) +{ + struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg); + int res = req->cqe.res; + + if (req->flags & REQ_F_PARTIAL_IO) + res = sr->done_io; + io_req_set_res(req, res, req->cqe.flags); +} + int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { struct io_accept *accept = io_kiocb_to_cmd(req, struct io_accept); diff --git a/io_uring/net.h b/io_uring/net.h index d744a0a874e7..109ffb3a1a3f 100644 --- a/io_uring/net.h +++ b/io_uring/net.h @@ -43,6 +43,8 @@ int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags); int io_recv(struct io_kiocb *req, unsigned int issue_flags); +void io_sendrecv_fail(struct io_kiocb *req); + int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_accept(struct io_kiocb *req, unsigned int issue_flags); diff --git a/io_uring/opdef.c b/io_uring/opdef.c index 224e5b30909d..f0f4ae33b99b 100644 --- a/io_uring/opdef.c +++ b/io_uring/opdef.c @@ -158,6 +158,7 @@ const struct io_op_def io_op_defs[] = { .issue = io_sendmsg, .prep_async = io_sendmsg_prep_async, .cleanup = io_sendmsg_recvmsg_cleanup, + .fail = io_sendrecv_fail, #else .prep = io_eopnotsupp_prep, #endif @@ -176,6 +177,7 @@ const struct io_op_def io_op_defs[] = { .issue = io_recvmsg, .prep_async = io_recvmsg_prep_async, .cleanup = io_sendmsg_recvmsg_cleanup, + .fail = io_sendrecv_fail, #else .prep = io_eopnotsupp_prep, #endif @@ -318,6 +320,7 @@ const struct io_op_def io_op_defs[] = { #if defined(CONFIG_NET) .prep = io_sendmsg_prep, .issue = io_send, + .fail = io_sendrecv_fail, #else .prep = io_eopnotsupp_prep, #endif @@ -333,6 +336,7 @@ const struct io_op_def io_op_defs[] = { #if defined(CONFIG_NET) .prep = io_recvmsg_prep, .issue = io_recv, + .fail = io_sendrecv_fail, #else .prep = io_eopnotsupp_prep, #endif |