linux-kernel - Re: [rfc] no ZERO

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Date:	Wed, 4 Apr 2007 13:45:06 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	Nick Piggin <npiggin@...e.de>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	tee@....com, holt@....com, Andrea Arcangeli <andrea@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [rfc] no ZERO_PAGE?

On Wed, 4 Apr 2007, Nick Piggin wrote:
> 
> No, you have a point, but if we have to ask people to recompile 
> with CONFIG_ZERO_PAGE, then it isn't much harder to ask them to
> apply a patch first.
> 
> But for a potential mainline merge, maybe starting with a CONFIG
> option is a good idea -- defaulting to off, and we could start by
> turning it on just in -rc kernels for a few releases, to get a bit
> more confidence?

I'm confused.  CONFIG_ZERO_PAGE off is where we'd like to end up: how
would turning CONFIG_ZERO_PAGE on in -rc kernels help us to get there?

Hugh
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