[PATCH v2 4/7] blk-mq: Introduce blk_quiesce_queue() and blk_resume_queue()

[Bart Van Assche]

On 10/01/16 15:56, Ming Lei wrote:
> If we just call the rcu/srcu read lock(or the mutex) around .queue_rq(), the
> above code needn't to be duplicated any more.

Hello Ming,

Can you have a look at the attached patch? That patch uses an srcu read 
lock for all queue types, whether or not the BLK_MQ_F_BLOCKING flag has 
been set. Additionally, I have dropped the QUEUE_FLAG_QUIESCING flag. 
Just like previous versions, this patch has been tested.

Thanks,

Bart.
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