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Message-ID: <1e62d1370511070054i113cd387y187a14a526d19eb7@mail.gmail.com>
Date: Mon, 7 Nov 2005 13:54:43 +0500
From: Fawad Lateef <fawadlateef@gmail.com>
To: ext3crypt <ext3crypt@comcast.net>
Subject: Re: Am I thinking correctly?
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <PFEILFFLMPNHAOBNBGPJGEHDCHAA.ext3crypt@comcast.net>
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On 11/7/05, ext3crypt <ext3crypt@comcast.net> wrote:
> I'm working on a masters project for PSU.  It requires that I modify the
> ext3 and fs code in the kernel proper.
>
> The idea is to encrypt data just prior to it being written to disk.  I've
> created a new version of __block_write_full_page (which is called from
> writepage) to allocate a new (GFP_NOFS) page, setup the buffer_head list and
> copy the data to the new page (and encrypt it too).  When I do this, the
> data is not written to disk from the new buffer_head that I submit using
> submit_bh().  I've treked through this code and I'm convinced I'm down the
> right path.  Am I?  Any assistance would be appreciated.
>

Which kernel version you are using ?
Using kernel Encryption API ?
How you got to know that your data is not written to disk ? Getting
any error message ? or some-thing else ?
And a url or attachment of code will help others to get to your problem !


--
Fawad Lateef
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