linux-kernel - Re: [PATCH] eCryptfs: Make ecryptfs_prepare

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Message-ID: <20080302154742.GE4627@localhost.austin.ibm.com>
Date:	Sun, 2 Mar 2008 09:47:42 -0600
From:	Michael Halcrow <mhalcrow@...ibm.com>
To:	Josh Boyer <jwboyer@...il.com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	bdriessen@...rypt.com, shaggy@...ibm.com, sandeen@...hat.com,
	tchicks@...ibm.com, trevor.highland@...il.com
Subject: Re: [PATCH] eCryptfs: Make ecryptfs_prepare_write decrypt the page

On Sun, Mar 02, 2008 at 08:04:52AM -0600, Josh Boyer wrote:
> On Sun, 2 Mar 2008 00:44:52 -0600
> Michael Halcrow <mhalcrow@...ibm.com> wrote:
> 
> > When the page is not up to date, ecryptfs_prepare_write() should be
> > acting much like ecryptfs_readpage(). This includes the painfully
> > obvious step of actually decrypting the page contents read from the
> > lower encrypted file.
> > 
> > Note that this patch resolves a bug in eCryptfs in 2.6.24 that one can
> > produce with these steps:
> 
> Should it go in -stable then?

Yes; I recommend this fix for a future 2.6.24 release.
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