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Message-ID: <1342594888.3669.65.camel@pasglop>
Subject: Re: [PATCH] mm: setup pageblock_order before it's used by sparse
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Jiang Liu <jiang.liu@huawei.com>
Cc: Yinghai Lu <yinghai@kernel.org>, Mel Gorman <mgorman@suse.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Tony Luck <tony.luck@intel.com>, Xishi Qiu <qiuxishi@huawei.com>,
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        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        David Rientjes <rientjes@google.com>, Minchan Kim <minchan@kernel.org>,
        Keping Chen <chenkeping@huawei.com>, linux-mm@kvack.org,
        stable@vger.kernel.org, linux-kernel@vger.kernel.org,
        Jiang Liu <liuj97@gmail.com>
Date: Wed, 18 Jul 2012 17:01:28 +1000
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On Tue, 2012-07-17 at 17:31 +0800, Jiang Liu wrote:
> Hi Ben,
> 	Any update about this topic?
> 	Thanks!
> 	Gerry

I should have said "long week-end" :-) I'm just back, will look into it
now.

Cheers,
Ben.

> 
> On 2012-7-6 9:24, Benjamin Herrenschmidt wrote:
> > On Thu, 2012-07-05 at 18:00 -0700, Yinghai Lu wrote:
> >> cma, dma_continugous_reserve is referring pageblock_order very early
> >> too.
> >> just after init_memory_mapping() for x86's setup_arch.
> >>
> >> so set pageblock_order early looks like my -v2 patch is right way.
> >>
> >> current question: need to powerpc guys to check who to set that early.
> > 
> > I missed the beginning of that discussion, I'll try to dig a bit,
> > might take me til next week though as I'm about to be off for
> > the week-end.
> >