tree beb6e22672284ce899befd7ce487c8533b5258ce
parent 0969e783e3a8913f79df27286501a6c21e961524
author Jens Axboe <axboe@kernel.dk> 1576633556 -0700
committer Jens Axboe <axboe@kernel.dk> 1576637847 -0700

io_uring: make IORING_OP_CANCEL_ASYNC deferrable

If we defer this command as part of a link, we have to make sure that
the SQE data has been read upfront. Integrate the async cancel op into
the prep handling to make it safe for SQE reuse.

Signed-off-by: Jens Axboe <axboe@kernel.dk>