linux-kernel - Re: Problem with accessing namespace

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Date:	Tue, 6 Nov 2007 13:35:59 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	crispin@...spincowan.com
Subject: Re: Problem with accessing namespace_sem from LSM.

On Tue, Nov 06, 2007 at 01:00:41PM +0900, Tetsuo Handa wrote:
> Hello.
> 
> I found that accessing namespace_sem from security_inode_create()
> causes lockdep warning when compiled with CONFIG_PROVE_LOCKING=y .

Any code except VFS internals has no business using it at all and doesn't
do that in mainline either.  I'd start looking for design bugs in whatever
code you have using it first.

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