linux-kernel - Re: [PATCH] [1/8] CPA: Fix gbpages support in try_preserve_lage

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Message-ID: <87ir0viwoc.fsf@basil.nowhere.org>
Date:	11 Feb 2008 12:01:39 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [1/8] CPA: Fix gbpages support in try_preserve_lage_page

Ingo Molnar <mingo@...e.hu> writes:
> 
> btw., v2.6.25-rc1 is not affected by this. Gbpages support is a "still 
> cooking" feature only available in x86.git#mm, destined for .26, and 
> even there it's default disabled and only available on Barcelona class 
> hardware. (Some of these bits are upstream already to make maintenance 
> easier, but they are inactive code.)

This means it will be tested for ~6 months. Don't you think that's a little
excessive for such a simple patch? 

% git show 6dc6ffff706db6c70a98253e7dc7011e4343df6c | diffstat 
 init_64.c |   29 ++++++++++++++++++++++++-----
 1 files changed, 24 insertions(+), 5 deletions(-)

One option would be also to merge it to .25 and mark the
CONFIG option EXPERIMENTAL.

-Andi
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