linux-kernel - Re: r-o bind in nfsd

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Message-Id: <1206133681.30471.37.camel@nimitz.home.sr71.net>
Date:	Fri, 21 Mar 2008 14:08:01 -0700
From:	Dave Hansen <haveblue@...ibm.com>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	viro@...IV.linux.org.uk, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, neilb@...e.de,
	akpm@...ux-foundation.org, hch@...radead.org,
	linux-security-module@...r.kernel.org, jmorris@...ei.org
Subject: Re: r-o bind in nfsd

On Fri, 2008-03-21 at 19:52 +0100, Miklos Szeredi wrote:
> Traditionally we have syscalls, and nfsd.  Both of them want the
> security checks, and I think nfsd wants the read-only mount checking
> as well, but I'm not entirely sure.  Maybe we can handle that by just
> making nfsd acquire a write-ref on the mount and keep it while it's
> exported.

The only question for me would be where the current r/o checks are
happening (IS_RDONLY()).  I generally based my patches on replacing
those calls.  

-- Dave

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