Re: [PATCH RESEND 4/5] blk-iolatency: fix incorrect lock order for rq_qos_mutex and freeze queue

[Nilay Shroff]

On 11/16/25 9:40 AM, Yu Kuai wrote:
> Currently blk-iolatency will hold rq_qos_mutex first and then call
> rq_qos_add() to freeze queue.
> 
> Fix this problem by converting to use blkg_conf_open_bdev_frozen()
> from iolatency_set_limit(), and convert to use rq_qos_add_freezed().
> 
> Signed-off-by: Yu Kuai <yukuai@xxxxxxxxx>

Looks good to me:
Reviewed-by: Nilay Shroff <nilay@xxxxxxxxxxxxx>