linux-kernel - Re: mq: INFO: possible circular locking dependency detected

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Date:	Mon, 6 Aug 2012 07:34:33 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Sasha Levin <levinsasha928@...il.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...hat.com>
Subject: Re: mq: INFO: possible circular locking dependency detected

On Sat, Aug 04, 2012 at 12:59:31PM +0200, Sasha Levin wrote:
> Hi all,
> 
> While fuzzing with trinity inside a KVM tools guest, using latest -next kernel, I've stumbled on the dump below.
> 
> I think this is the result of commit 765927b2 ("switch dentry_open() to struct path, make it grab references itself").

	Not quite, actually - back then the order didn't matter;
unfortunately, I'd missed that place when porting Jan's series,
which made these ordered.

	Anyway, see today's vfs.git#for-linus; that should be dealt with
there.
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