io_uring: untie alloc_async_data and needs_async_data

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All opcode handlers pretty well know whether they need async data or
not, and can skip testing for needs_async_data. The exception is rw
the generic path, but those test the flag by hand anyway. So, check the
flag and make io_alloc_async_data() allocating unconditionally.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-02-28 22:35:17 +00:00 • committed by Jens Axboe

parent 2e052d443d

commit 6cb78689fa

1 changed files with 3 additions and 11 deletions

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fs/io_uring.c

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