On Fri, 13 May 2022 20:55:45 -1000, Tejun Heo wrote:
> iolatency needs to track the number of inflight IOs per cgroup. As this
> tracking can be expensive, it is disabled when no cgroup has iolatency
> configured for the device. To ensure that the inflight counters stay
> balanced, iolatency_set_limit() freezes the request_queue while manipulating
> the enabled counter, which ensures that no IO is in flight and thus all
> counters are zero.
>
> [...]
Applied, thanks!
[1/1] blk-iolatency: Fix inflight count imbalances and IO hangs on offline
commit: 8a177a36da6c54c98b8685d4f914cb3637d53c0d
Best regards,
--
Jens Axboe
