io_uring: make ASYNC_CANCEL work with poll and timeout

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It's a little confusing that we have multiple types of command
cancellation opcodes now that we have a generic one. Make the generic
one work with POLL_ADD and TIMEOUT commands as well, that makes for an
easier to use API for the application. The fact that they currently
don't is a bit confusing.

Add a helper that takes care of it, so we can user it from both
IORING_OP_ASYNC_CANCEL and from the linked timeout cancellation.

Reported-by: Hrvoje Zeba <zeba.hrvoje@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2019-11-09 17:43:02 -07:00

parent 0ddf92e848

commit 47f467686e

1 changed files with 80 additions and 58 deletions

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fs/io_uring.c

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