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io_uring/rw: implement vectored registered rw

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Implement registered buffer vectored reads with new opcodes
IORING_OP_WRITEV_FIXED and IORING_OP_READV_FIXED.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d7c89eb481e870f598edc91cc66ff4d1e4ae3788.1741362889.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2025-03-07 09:07:29 -07:00
committed by Jens Axboe
parent 9ef4cbbcb4
commit bdabba04bb
4 changed files with 94 additions and 0 deletions
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include/uapi/linux/io_uring.h
+2
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@@ -281,6 +281,8 @@ enum io_uring_op {
IORING_OP_LISTEN,
IORING_OP_RECV_ZC,
IORING_OP_EPOLL_WAIT,
IORING_OP_READV_FIXED,
IORING_OP_WRITEV_FIXED,
/* this goes last, obviously */
IORING_OP_LAST,