On 10/20/21 15:01, Jens Axboe wrote:
On Wed, 20 Oct 2021 09:53:02 +0100, Pavel Begunkov wrote:
io_unprep_linked_timeout() is broken, first it needs to return back
REQ_F_ARM_LTIMEOUT, so the linked timeout is enqueued and disarmed. But
now we refcounted it, and linked timeouts may get not executed at all,
leaking a request.
Just kill the unprep optimisation.
Jens, if the patches are not too deep, would also be lovely to
add reported-by to this and the other one.
Link: https://github.com/axboe/liburing/issues/460
Reported-by: Beld Zhang <beldzhang@xxxxxxxxx>
--
Pavel Begunkov
