linux-kernel - Re: [PATCH 04/24] r/o bind mounts: stub functions

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Message-ID: <20070919172843.GD20917@infradead.org>
Date:	Wed, 19 Sep 2007 18:28:43 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Dave Hansen <haveblue@...ibm.com>
Cc:	akpm@...l.org, linux-kernel@...r.kernel.org, hch@...radead.org
Subject: Re: [PATCH 04/24] r/o bind mounts: stub functions

On Mon, Sep 17, 2007 at 11:27:23AM -0700, Dave Hansen wrote:
> 
> This patch adds two function mnt_want_write() and
> mnt_drop_write().  These are used like a lock pair around
> and fs operations that might cause a write to the filesystem.
> 
> Before these can become useful, we must first cover each
> place in the VFS where writes are performed with a
> want/drop pair.  When that is complete, we can actually
> introduce code that will safely check the counts before
> allowing r/w<->r/o transitions to occur.

kerneldoc comments, please!

Otherwise looks fine.

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