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This failure is expected on kernels that don't support the DRAIN
primitive.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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I generalized the barrier flag to be applicable to all commands, so
let's drop the fsync special flag.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Replace all cqe->user_data casts with io_uring_cqe_get_data().
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Also changes the fsync prep helper to require passing in the actual
flag, not just a boolean for fsync vs fdatasync.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Clean it up, and just use a single io_uring for both the reads
and the writes.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Add tests for io_uring_setup, io_uring_register and io_uring_enter.
The test coverage is nowhere near complete and the reporting is not
uniform. But, it's a start.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We assume that a silent test is good.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The parent may well die before the child is done, as long as it wrote to
the pipe, we're fine.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Just setup one ring in the child process, and poll for when the
read side of the pipe is readable. From the parent, write something
to the pipe.
If nothing happens within 1 second, fail the test.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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- Add a timeout, if we don't finish in one second we are definitely
hung because the poll remove command didn't work.
- Don't assume completion ordering
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We don't need any of the information in there in the caller, and
this makes it harder to abuse as we don't require the caller to
have memset() the struct first.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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- Don't use polled IO for the io_uring-test, that'll fail if the
fs/device doesn't suppor it
- copy read-in was broken for io_uring-cp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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- Fixed buffers are now available through io_uring_register()
- Various thread/wq options are now dead and automatic instead
- sqe->index is now sqe->buf_index
- Fixed buffers require flag, not separate opcode
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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- io_uring_sqe added a data field that's passed back at completion
- io_uring_sqe added an index field, for fixed buffer locations
- io_uring_setup(2) system call added a 'nr_iovecs' field
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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No point in keeping these separate.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Don't rely on this for anything, it's just a test case / demo.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This is cleaner than having the app juggle an SQ and CQ ring,
just wrap them in struct io_uring and have the API always take
that. This means the app doesn't need to worry about the different
types of rings, and that we only need to pass in one argument
for setup/teardown.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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