linux-kernel - Re: [PATCH] vfs: fix IMA lockdep circular locking dependency

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Message-ID: <CA+55aFxRRuWGD-4LYzO-T8eg22goKpej5AV36ALL8GaLP56oRA@mail.gmail.com>
Date:	Tue, 15 May 2012 14:43:15 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:	Eric Paris <eparis@...isplace.org>, Mimi Zohar <zohar@...ibm.com>,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH] vfs: fix IMA lockdep circular locking dependency

On Tue, May 15, 2012 at 1:07 PM, Mimi Zohar <zohar@...ux.vnet.ibm.com> wrote:
>
> If the security_file_mmap() moves to before taking the mmap_sem and the
> new security_mmap_addr() hook would be at the current
> security_file_mmap() location, I don't see the problem.  The addr test
> would remain in the same place.

Btw, please do change the name at the same time, so that the new
"file" testing function is "security_mmap_file()". That way a grep
shows any stale cases, rather than having to look at the exact
arguments (it does lose the last argument too).

                   Linus
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