io_uring: remove racy overflow list fast checks

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list_empty_careful() is not racy only if some conditions are met, i.e.
no re-adds after del_init. io_cqring_overflow_flush() does list_move(),
so it's actually racy.

Remove those checks, we have ->cq_check_overflow for the fast path.

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

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Pavel Begunkov 2020-12-17 00:24:36 +00:00 • committed by Jens Axboe

parent cda286f071

commit 9cd2be519d

1 changed files with 1 additions and 4 deletions

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fs/io_uring.c

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