linux-kernel - Re: [PATCH block/for-next] block: don't call blk_drain

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Message-ID: <20111103211253.GO4417@google.com>
Date:	Thu, 3 Nov 2011 14:12:53 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Jiri Slaby <jslaby@...e.cz>,
	"James E.J. Bottomley" <jejb@...isc-linux.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: [PATCH block/for-next] block: don't call blk_drain_queue() if
 elevator is not up

On Thu, Nov 03, 2011 at 06:49:53PM +0100, Jens Axboe wrote:
> > Fix it by making blk_cleanup_queue() check whether q->elevator is set
> > up before invoking blk_drain_queue.
> 
> Thanks, glad this got caught before the merge...

Heh, yeah, definitely, and just to be paranoid, this whole thing is
for the next merge window.

Thanks.

-- 
tejun
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