Re: [PATCH v3 2/4] block: add a read barrier in blk_queue_enter()

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On Mon, Mar 27, 2017 at 08:06:56PM +0800, Ming Lei wrote:
> Without the barrier, reading DEAD flag of .q_usage_counter
> and reading .mq_freeze_depth may be reordered, then the
> following wait_event_interruptible() may never return.
> 
> Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
> Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>
> ---

Reviewed-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
-- 
Johannes Thumshirn                                          Storage
jthumshirn@xxxxxxx                                +49 911 74053 689
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