linux-kernel - Re: [PATCH 1/5] pagemap: Modify add_to_pagemap to use copy_to_user instead of put

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Date:	Thu, 05 Jun 2008 14:06:03 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Thomas Tuttle <ttuttle@...gle.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] pagemap: Modify add_to_pagemap to use copy_to_user
	instead of put_user.


On Thu, 2008-06-05 at 12:02 -0700, Andrew Morton wrote:
> On Thu, 5 Jun 2008 11:04:21 -0400
> "Thomas Tuttle" <ttuttle@...gle.com> wrote:
> 
> > While fiddling with pagemap, I discovered a bug in add_to_pagemap.
> 
> so...  afaict we have some fairly significant problems in here and a
> version 2 of the patchset is in order?
> 
> If so, when preparing that patchset please do have a think about which
> of the fixes you believe should be backported into 2.6.25.x and prepare
> the patches so that those fixes come first, to ease that backporting.

For 2.6.25.x, we should probably just add a cast to the put_user dest.
Thomas?

-- 
Mathematics is the supreme nostalgia of our time.

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