io_uring: add general async offload context

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Right now we just copy the sqe for async offload, but we want to store
more context across an async punt. In preparation for doing so, put the
sqe copy inside a structure that we can expand. With this pointer added,
we can get rid of REQ_F_FREE_SQE, as that is now indicated by whether
req->io is NULL or not.

No functional changes in this patch.

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

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Jens Axboe 2019-12-02 10:33:15 -07:00

parent 490547ca2d

commit 1a6b74fc87

1 changed files with 32 additions and 24 deletions

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fs/io_uring.c

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