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List:       linux-scsi
Subject:    Re: [blk-mq Bug] race on removing hctx->dispatch_wait from wait queue
From:       Ming Lei <ming.lei () redhat ! com>
Date:       2018-06-27 23:24:25
Message-ID: 20180627232424.GB7583 () ming ! t460p
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On Wed, Jun 27, 2018 at 01:00:08PM -0700, Bart Van Assche wrote:
> On 06/26/18 17:49, Ming Lei wrote:
> > Only the waitqueue's lock is held for blk_mq_dispatch_wake(), but this
> > hctx->dispatch_wait can be added to another waitqueue, so it isn't
> > enough to just hold waitqueue's lock.
> 
> Hello Ming,
> 
> That makes sense to me. I will post an update that addresses this issue.

I have sent a new patch days ago:

	https://marc.info/?l=linux-block&m=152998658713265&w=2

Thanks,
Ming
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