linux-kernel - Re: [PATCH] x86: cacheline_align tss

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Message-ID: <20080704144810.GB23651@elte.hu>
Date:	Fri, 4 Jul 2008 16:48:10 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Richard Kennedy <richard@....demon.co.uk>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: [PATCH] x86: cacheline_align tss_struct


* Richard Kennedy <richard@....demon.co.uk> wrote:

> The manual padding to align on cacheline size only worked in 32 bit
> In 64 bit the structure was not aligned and contained wasted space.
>     
> use the compiler ____cachline_aligned to save space & properly align
> this structure.
>     
> x86_64_default size goes from 9136 -> 8960
> x86_64_AMD     size goes from 9136 -> 8896

applied to tip/x86/cleanups - thanks Richard!

	Ingo
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