linux-kernel - Re: [patch 2/3] add new macros to make percpu readmostly section correctly align

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Date:	Thu, 16 Dec 2010 08:53:37 +0800
From:	Shaohua Li <shaohua.li@...el.com>
To:	Tejun Heo <htejun@...il.com>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	"hpa@...or.com" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"sam@...nborg.org" <sam@...nborg.org>,
	"eric.dumazet@...il.com" <eric.dumazet@...il.com>
Subject: Re: [patch 2/3] add new macros to make percpu readmostly section
 correctly align

On Wed, 2010-12-15 at 22:08 +0800, Tejun Heo wrote:
> Hello,
> 
> On 12/15/2010 02:57 AM, Shaohua Li wrote:
> > How about this one?
> 
> Much better.  :-)
> 
> > +#ifdef INTERNODE_CACHE_BYTES
> > +#define INTERNODE_CACHEALIGNED						\
> > +	. = ALIGN(INTERNODE_CACHE_BYTES);
> > +#else
> > +#define INTERNODE_CACHEALIGNED
> > +#endif
> 
> Yeah, this looks good.
> 
> > Index: linux/arch/x86/kernel/vmlinux.lds.S
> > ===================================================================
> > --- linux.orig/arch/x86/kernel/vmlinux.lds.S	2010-12-15 09:37:01.000000000 +0800
> > +++ linux/arch/x86/kernel/vmlinux.lds.S	2010-12-15 09:37:06.000000000 +0800
> > @@ -20,11 +20,11 @@
> >  #define LOAD_OFFSET __START_KERNEL_map
> >  #endif
> >  
> > -#include <asm-generic/vmlinux.lds.h>
> >  #include <asm/asm-offsets.h>
> >  #include <asm/thread_info.h>
> >  #include <asm/page_types.h>
> >  #include <asm/cache.h>
> > +#include <asm-generic/vmlinux.lds.h>
> >  #include <asm/boot.h>
> 
> Why do we need this chunk?
the cache size is defined in cache.h, so I need move vmlinux.lds.h after
cache.h

Thanks,
Shaohua

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