linux-kernel - Re: [PATCH v2 1/1] blk-mq: fix hang caused by freeze/unfreeze sequence

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Message-ID: <20160810035542.GE25053@mtj.duckdns.org>
Date:	Tue, 9 Aug 2016 23:55:42 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Roman Pen <roman.penyaev@...fitbricks.com>
Cc:	Akinobu Mita <akinobu.mita@...il.com>,
	Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] blk-mq: fix hang caused by freeze/unfreeze
 sequence

Hello,

On Mon, Aug 08, 2016 at 01:39:08PM +0200, Roman Pen wrote:
> Long time ago there was a similar fix proposed by Akinobu Mita[1],
> but it seems that time everyone decided to fix this subtle race in
> percpu-refcount and Tejun Heo[2] did an attempt (as I can see that
> patchset was not applied).

So, I probably forgot about it while waiting for confirmation of fix.
Can you please verify that the patchset fixes the issue?  I can apply
the patchset right away.

Thanks.

-- 
tejun