On 10/24/18 7:18 AM, Ming Lei wrote:
> rq_qos_exit() removes the current q->rq_qos, this action has to be
> done after queue is frozen, otherwise the IO queue path may never
> be waken up, then IO hang is caused.
>
> So fixes this issue by moving rq_qos_exit() after queue is frozen.
Looks good,
On Wed, Oct 24, 2018 at 9:18 PM Ming Lei wrote:
>
> rq_qos_exit() removes the current q->rq_qos, this action has to be
> done after queue is frozen, otherwise the IO queue path may never
> be waken up, then IO hang is caused.
>
> So fixes this issue by moving rq_qos_exit() after queue is frozen.
rq_qos_exit() removes the current q->rq_qos, this action has to be
done after queue is frozen, otherwise the IO queue path may never
be waken up, then IO hang is caused.
So fixes this issue by moving rq_qos_exit() after queue is frozen.
Cc: Josef Bacik
Signed-off-by: Ming Lei
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