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This example misses an increment though the iovecs array. This causes
the same buffer to be filled from the block device every time. It would
be good to fix this since it is one of the first examples a new-comer to
io_uring is exposed too.
Signed-off-by: Stephen Bates <sbates@raithlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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In case malloc fails, the fix returns NULL to avoid NULL pointer
dereference.
Signed-off-by: zhangliguang <zhangliguang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Put the data at the end so we don't have to offset the actual buffer.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Add short read requeue and abort on error.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Still need to handle broken chains, must resubmit those.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Just a basic test case that does various forms of linked nops, and
a sample bare bones copy program using linked reads and writes.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We have io_uring_get_sqe() on the submission side, yet the completion
side is named _completion. Rename as follows:
io_uring_get_completion() io_uring_peek_cqe()
iO_uring_wait_completion() io_uring_wait_cqe()
This better tells the user what the _get variant does by calling it
_peek instead, and we move to using _cqe() as the postfix instead
of _completion.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Also adds a runtests makefile target.
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