io_uring: rethink def->needs_async_data

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needs_async_data controls allocation of async_data, and used in two
cases. 1) when async setup requires it (by io_req_prep_async() or
handler themselves), and 2) when op always needs additional space to
operate, like timeouts do.

Opcode preps already don't bother about the second case and do
allocation unconditionally, restrict needs_async_data to the first case
only and rename it into needs_async_setup.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
[axboe: update for IOPOLL fix]
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-02-28 22:35:18 +00:00 • committed by Jens Axboe

parent 6cb78689fa

commit 26f0505a9c

1 changed files with 11 additions and 18 deletions

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fs/io_uring.c

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