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

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Date:	Thu, 23 Dec 2010 10:38:34 +0800
From:	Shaohua Li <shaohua.li@...el.com>
To:	Tejun Heo <htejun@...il.com>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	lkml <linux-kernel@...r.kernel.org>,
	"hpa@...or.com" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.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 Mon, 2010-12-20 at 23:55 +0800, Tejun Heo wrote:
> Hello,
> 
> On 12/20/2010 02:28 AM, Shaohua Li wrote:
> >> Not being able to cross build every arch is okay but you at least need
> >> to make an effort to make things easily applicable to other archs and
> >> avoid adding subtle ugliness like the above.  Please at least try to
> >> look at other arch codes and see how things can be made to work across
> >> different archs.  Setting up cross compilers for the major archs, for
> >> example, sparc, power and ia64 isn't that difficult either.
> >
> > This still needs I fix every arch, for example, as Sam pointed out,
> > spark build will fail. I really have the bandwidth and capability to do
> > this. Increment changes are always preferred. My original patch is
> > trying to follow increment changes way.
> 
> Yeah, well, in my experience, those approaches usually just end up
> piling partial conversions on top of different set of partial
> conversions.  It's not like we're talking about a major arch dependent
> feature it's just a matter of looking through different arch codes,
> maybe test building some, pushing things to linux-next and dealing
> with fallouts if there is any.  I'll try to do it myself.
Thanks for doing it and sorry I didn't do it.
The first patch in the series isn't related to this issue, please
consider merge it.

Thanks,
Shaohua

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