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Date: Tue, 6 Mar 2001 00:29:12 +0000
From: Kenn Humborg <kenn@linux.ie>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: kmalloc() alignment
Message-ID: <20010306002912.A14827@excalibur.research.wombat.ie>
In-Reply-To: <3AA2C488.54A792AD@colorfullife.com> <20010306000652.A13992@excalibur.research.wombat.ie> <981a78$cb2$1@cesium.transmeta.com>
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In-Reply-To: <981a78$cb2$1@cesium.transmeta.com>; from hpa@zytor.com on Mon, Mar 05, 2001 at 04:15:36PM -0800
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On Mon, Mar 05, 2001 at 04:15:36PM -0800, H. Peter Anvin wrote:
> > So, to summarise (for 32-bit CPUs):
> > 
> > o  Alan Cox & Manfred Spraul say 4-byte alignment is guaranteed.
> > 
> > o  If you need larger alignment, you need to alloc a larger space,
> >    round as necessary, and keep the original pointer for kfree()
> > 
> > Maybe I'll just use get_free_pages, since it's a 64KB chunk that
> > I need (and it's only a once-off).
> > 
> 
> It might be worth asking the question if larger blocks are more
> aligned?

OK, I'll bite...

Are larger blocks more aligned?

Later,
Kenn

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