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Date:	Fri, 16 Mar 2007 12:54:21 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Pekka Enberg" <penberg@...helsinki.fi>
Cc:	linux-kernel@...r.kernel.org, hch@...radead.org,
	alan@...rguk.ukuu.org.uk, Al Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH 2/5] revoke: core code

On Fri, 16 Mar 2007 22:37:57 +0200 "Pekka Enberg" <penberg@...helsinki.fi> wrote:

> What we could do is add a "I am revoked" flag to struct file which
> blocks any future ->readpage, ->readpages, and ->direct_IO on the
> file. Alternatively, we could change the ->f_mapping to point to an
> address space that has "revoked address space" operations. Hmm.

iirc, that was part of the rationale for the introduction of f_mapping.

I'll cc he-who-never-replies, who did that work.
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