On Thu, Nov 23, 2017 at 12:47:58PM +0800, Ming Lei wrote:
> Hi Jens,
> 
> The 1st patch runs queue in blk_freeze_queue_start() for fixing one
> regression by 055f6e18e08f("block: Make q_usage_counter also track legacy
> requests").
> 
> The 2nd patch drians blkcg part of request_queue for both blk-mq and
> legacy, which can be a fix on blk-mq's queue cleanup.
> 
> V2:
>       - follow Bart's suggestion to use run queue instead of drain queue
>       - drians blkcg part of request_queue for blk-mq
> 

Hi Jens,

Without this patchset, IO hang can be triggered in Mauricio's disk
pull test, and this IO hang won't happen any more after this patchset
is applied.

So could you make it in V4.15 if you are fine with the two patches?

Thanks,
Ming

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