Pavel Begunkov 7d67af2c01
io_uring: add splice(2) support ...
Add support for splice(2).
- output file is specified as sqe->fd, so it's handled by generic code
- hash_reg_file handled by generic code as well
- len is 32bit, but should be fine
- the fd_in is registered file, when SPLICE_F_FD_IN_FIXED is set, which
is a splice flag (i.e. sqe->splice_flags).
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com >
Signed-off-by: Jens Axboe <axboe@kernel.dk >
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7d67af2c01