linux-kernel - Re: [PATCH] eCryptfs: Allocate up to two scatterlists for crypto ops on keys

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Message-ID: <20081117202728.GB8196@halcrowt61p.austin.ibm.com>
Date:	Mon, 17 Nov 2008 14:27:28 -0600
From:	Michael Halcrow <mhalcrow@...ibm.com>
To:	Greg KH <greg@...ah.com>, Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, sandeen@...hat.com,
	dustin.kirkland@...il.com, pjssilva@....usp.br
Subject: Re: [PATCH] eCryptfs: Allocate up to two scatterlists for crypto
	ops on keys

On Fri, Nov 14, 2008 at 08:58:07AM -0800, Greg KH wrote:
> On Fri, Nov 14, 2008 at 10:40:53AM -0600, Michael Halcrow wrote:
> > I have received some reports of out-of-memory errors on some older AMD
> > architectures. These errors are what I would expect to see if
> > crypt_stat->key were split between two separate pages. eCryptfs should
> > not assume that any of the memory sent through virt_to_scatterlist()
> > is all contained in a single page, and so this patch allocates two
> > scatterlist structs instead of one when processing keys. I have
> > received confirmation from one person affected by this bug that this
> > patch resolves the issue for him, and so I am submitting it for
> > inclusion in a future stable release.
> 
> Is this already in Linus's tree?

Nope. This patch needs to be merged to that point.
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