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?
Date: Tue, 15 Oct 2002 15:11:32 -0700 [thread overview]
Message-ID: <20021015221132.GI27878@holomorphy.com> (raw)
In-Reply-To: <20021015230506.D7702@flint.arm.linux.org.uk>
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
next prev parent reply other threads:[~2002-10-15 22:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-15 19:32 [patch, 2.5] __vmalloc allocates spurious page? Marcus Alanen
2002-10-15 21:58 ` Marcus Alanen
2002-10-15 22:05 ` Russell King
2002-10-15 22:11 ` William Lee Irwin III [this message]
2002-10-15 22:21 ` Andrew Morton
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