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io_uring: add tee(2) support

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Add IORING_OP_TEE implementing tee(2) support. Almost identical to
splice bits, but without offsets.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2020-05-17 14:18:06 +03:00 • committed by Jens Axboe
parent 9dafdfc2f0
commit f2a8d5c7a2
2 changed files with 60 additions and 3 deletions
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include/uapi/linux/io_uring.h
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@ -129,6 +129,7 @@ enum {
IORING_OP_SPLICE,
IORING_OP_PROVIDE_BUFFERS,
IORING_OP_REMOVE_BUFFERS,
IORING_OP_TEE,
/* this goes last, obviously */
IORING_OP_LAST,