Re: [PATCH] block: mq flush: fix race between IPI handler and mq flush worker

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On 2014-05-27 12:13, Christoph Hellwig wrote:
Here is my counter proposal that requeues via two lists and a work struct
in the request_queue.  I've also tested it with scsi-mq.


I like this, moves the state out of the request. But how about we consolidate the two requeue requests lists, and just mark the request as needing head insertion instead? Just add a cmd_flags flag, REQ_REQUEUE_HEAD or something.

--
Jens Axboe

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