Subject: Re: [patch 2/3] add new macros to make percpu readmostly section
 correctly align
From: Shaohua Li <shaohua.li@intel.com>
To: Tejun Heo <htejun@gmail.com>
Cc: lkml <linux-kernel@vger.kernel.org>, "hpa@zytor.com" <hpa@zytor.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        "sam@ravnborg.org" <sam@ravnborg.org>,
        "eric.dumazet@gmail.com" <eric.dumazet@gmail.com>
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	 <4D0243DD.3090507@gmail.com>
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Date: Mon, 13 Dec 2010 08:41:26 +0800
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On Fri, 2010-12-10 at 23:14 +0800, Tejun Heo wrote:
> Hello,
> 
> On 12/02/2010 03:02 AM, Shaohua Li wrote:
> > percpu readmostly section should start and end at address cachline aligned.
> > Idealy we should change PERCPU_VADDR/PERCPU, but I can't change all arch code, so
> > I add new macros for x86.
> > 
> > Signed-off-by: Shaohua Li <shaohua.li@intel.com>
> 
> Why add another set of macros?  Can't you just make the default one
> aligned?
how to do it without changing all arch code? There isn't cache line size
macro for all arch which could be used in vmlinux.lds.h, IIRC.

Thanks,
Shaohua

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