linux-kernel - Re: [patch 00/13] vfs: add helpers to check r/o bind mounts

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Message-Id: <E1JrcCR-0005tn-B9@pomaz-ex.szeredi.hu>
Date:	Thu, 01 May 2008 19:04:03 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	dave@...ux.vnet.ibm.com
CC:	miklos@...redi.hu, viro@...iv.linux.org.uk,
	akpm@...ux-foundation.org, torvalds@...ux-foundation.org,
	ezk@...sunysb.edu, mhalcrow@...ibm.com,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [patch 00/13] vfs: add helpers to check r/o bind mounts

> Is there a way we could pass around a vfs-internal object to these
> things?  Maybe something that is like an opaque token only known to the
> vfs?

vfsmount itself should be an opaque token to anything but the
namespace code.  So the definition could just be moved into say
fs/vfsmount.h, and be done with that.

Probably not a trivial cleanup to do (s_op->show_options() is a major
offender), but I don't see any major roadblocks.

Miklos
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