linux-kernel - linux-next: build failure after merge of the final tree (Linus' tree related)

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Date:	Fri, 17 Jun 2011 15:38:09 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Linus <torvalds@...ux-foundation.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	ppc-dev <linuxppc-dev@...ts.ozlabs.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: linux-next: build failure after merge of the final tree (Linus'
 tree related)

Hi all,

After merging the final tree, today's linux-next build (powerpc
allyesconfig) failed like this:

mm/page_cgroup.c: In function 'page_cgroup_init':
mm/page_cgroup.c:309:13: error: 'pg_data_t' has no member named 'node_end_pfn'

Caused by commit 37573e8c7182 ("memcg: fix init_page_cgroup nid with
sparsemem").  On powerpc, node_end_pfn() is defined to be (NODE_DATA
(nid)->node_end_pfn) where NODE_DATA(nid) is (node_data[nid]) and
node_data is struct pglist_data *node_data[].  As far as I can see,
struct pglist_data has never had a member called node_end_pfn.

This commit introduces the only use of node_end_pfn() in the generic
kernel code.  Presumably the powerpc definition needs to be fixed (to
maybe something like the x86 version).  It looks like the sparc version
is broken as well.

I have left the powerpc allyesconfig build broken for today (as it is
also broken by other changes).
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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