Re: [PATCH V4 08/10] block: allow to allocate req with RQF_PREEMPT when queue is preempt frozen

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On Wed, Sep 13, 2017 at 05:28:24PM +0000, Bart Van Assche wrote:
> On Thu, 2017-09-14 at 00:48 +0800, Ming Lei wrote:
> > Could you please let me know if your concern about race between
> > preempt freeze and blk_cleanup_queue() is addressed in my last
> > reply?
> 
> Shouldn't we wait until v4.13-rc1 has been released before spending more
> energy on this? Certain patches that have been sent to Linus, e.g. commit

The discussion should have been done any time, right?

I believe I replied all your comments, if you don't agree any one of
my follow-up, please point it out.

> 157f377beb71 ("block: directly insert blk-mq request from
> blk_insert_cloned_request()"), may affect the test results. I have not

No, that patch only changes blk_insert_cloned_request() which is used
by dm-rq(mpath) only, nothing to do with the reported issue during
suspend and sending SCSI Domain validation.


-- 
Ming



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