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| author | Jens Axboe <axboe@kernel.dk> | 2025-04-04 23:50:59 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-04-21 14:06:58 +0300 |
| commit | 53db8a71ecb42c2ec5e9c6925269a750255f9af5 (patch) | |
| tree | 5feb2d598e3069028de9348d593aa02d303358b6 /include/uapi/linux | |
| parent | bd32923e5f02fa7b04d487ec265dc8080d27a257 (diff) | |
| download | linux-53db8a71ecb42c2ec5e9c6925269a750255f9af5.tar.xz | |
io_uring: add support for IORING_OP_PIPE
This works just like pipe2(2), except it also supports fixed file
descriptors. Used in a similar fashion as for other fd instantiating
opcodes (like accept, socket, open, etc), where sqe->file_slot is set
appropriately if two direct descriptors are desired rather than a set
of normal file descriptors.
sqe->addr must be set to a pointer to an array of 2 integers, which
is where the fixed/normal file descriptors are copied to.
sqe->pipe_flags contains flags, same as what is allowed for pipe2(2).
Future expansion of per-op private flags can go in sqe->ioprio,
like we do for other opcodes that take both a "syscall" flag set and
an io_uring opcode specific flag set.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux')
| -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 8f1fc12bac46..130f3bc71a69 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -73,6 +73,7 @@ struct io_uring_sqe { __u32 futex_flags; __u32 install_fd_flags; __u32 nop_flags; + __u32 pipe_flags; }; __u64 user_data; /* data to be passed back at completion time */ /* pack this to avoid bogus arm OABI complaints */ @@ -283,6 +284,7 @@ enum io_uring_op { IORING_OP_EPOLL_WAIT, IORING_OP_READV_FIXED, IORING_OP_WRITEV_FIXED, + IORING_OP_PIPE, /* this goes last, obviously */ IORING_OP_LAST, |