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| author |   Jens Axboe <axboe@kernel.dk> | 2019-04-19 13:34:07 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-07-09 14:32:05 -0600 |
| commit | 0fa03c624d8fc9932d0f27c39a9deca6a37e0e17 (patch) | |
| tree | 50924290ab944d1a68dcacb69c04d100c6d3049b /include/uapi/linux/io_uring.h | |
| parent | io_uring: add support for sqe links (diff) | |
| download | linux-dev-0fa03c624d8fc9932d0f27c39a9deca6a37e0e17.tar.xz linux-dev-0fa03c624d8fc9932d0f27c39a9deca6a37e0e17.zip | |
io_uring: add support for sendmsg()
This is done through IORING_OP_SENDMSG. There's a new sqe->msg_flags
for the flags argument, and the msghdr struct is passed in the
sqe->addr field.
We use MSG_DONTWAIT to force an inline fast path if sendmsg() doesn't
block, and punt to async execution if it would have.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux/io_uring.h')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 10b7c45f6d57..d74742d6269f 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -27,6 +27,7 @@ struct io_uring_sqe { __u32 fsync_flags; __u16 poll_events; __u32 sync_range_flags; + __u32 msg_flags; }; __u64 user_data; /* data to be passed back at completion time */ union { @@ -58,6 +59,7 @@ struct io_uring_sqe { #define IORING_OP_POLL_ADD 6 #define IORING_OP_POLL_REMOVE 7 #define IORING_OP_SYNC_FILE_RANGE 8 +#define IORING_OP_SENDMSG 9 /* * sqe->fsync_flags |