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Date: Tue, 15 Oct 2002 15:11:32 -0700
From: William Lee Irwin III <wli@holomorphy.com>
To: Russell King <rmk@arm.linux.org.uk>
Cc: Marcus Alanen <marcus@infa.abo.fi>, maalanen@ra.abo.fi,
       Andrew Morton <akpm@digeo.com>, linux-kernel@vger.kernel.org
Subject: Re: [patch, 2.5] __vmalloc allocates spurious page?
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On Wed, Oct 16, 2002 at 12:58:12AM +0300, Marcus Alanen wrote:
>> Actually, size is already PAGE_ALIGNed, so we get the amount of pages
>> even easier.

On Tue, Oct 15, 2002 at 11:05:06PM +0100, Russell King wrote:
> IIRC, back in the dim and distant past, the extra page was originally to
> catch things running off the end of their space (eg, modules).  The
> idea was that modules (and other vmalloc'd areas) would be separated
> by one unmapped page.
> It looks like this got broken recently though.

Hmm? I looked briefly to check the patch and the guard page was added
onto the thing elsewhere in vmalloc.c


Bill
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