Re: [PATCH 0/3] iolatency bug fix

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On 1/23/19 5:16 PM, Liu Bo wrote:
> This set is to fix a hang case if blk-iolatency is in use.
> 
> The 1st patch adds a warning for unexpected inflight counter.
> The 2nd patch explains the hang problem with more details.
> The 3nd patch is a cleanup of blk_mq_freeze_queue.

This is much better. You'll want to reorder 1 and 2 though, it's a known
issue that we can hit the underflow condition before you fix the issue.

-- 
Jens Axboe




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