linux-kernel - Re: boot stall regression due to blk-mq: use percpu

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Message-ID: <20140923055724.GE11740@mtj.dyndns.org>
Date:	Tue, 23 Sep 2014 01:57:24 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Christoph Hellwig <hch@....de>
Cc:	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: Re: boot stall regression due to blk-mq: use percpu_ref for mq usage
 count

On Tue, Sep 23, 2014 at 01:56:48AM -0400, Tejun Heo wrote:
> On Tue, Sep 23, 2014 at 07:55:54AM +0200, Christoph Hellwig wrote:
> > Jens,
> > 
> > can we simply get these commits reverted from now if there's no better
> > fix?  I'd hate to have this boot stall in the first kernel with blk-mq
> > support for scsi.
> 
> Patches going out right now.

And the original implementation was broken, so...

-- 
tejun
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