Re: [PATCH V7 1/9] blk-mq: grab .q_usage_counter when queuing request from plug code path

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On Thu, Apr 25, 2019 at 08:53:34AM +0800, Ming Lei wrote:
> It isn't in other callers of blk_mq_sched_insert_requests(), it is just
> needed in some corner case like flush plug context.
> 
> For other callers of blk_mq_sched_insert_requests(), it is guaranteed
> that request queue's ref is held.

In both Linus' tree and Jens' for-5.2 tree I only see these two
callers of blk_mq_sched_insert_requests.  What am I missing?



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