linux-kernel - [patch] m68k, mm: set all online nodes in N_NORMAL

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Message-ID: <alpine.DEB.2.00.1104211501470.20201@chino.kir.corp.google.com>
Date:	Thu, 21 Apr 2011 15:02:49 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Roman Zippel <zippel@...ux-m68k.org>
cc:	linux-m68k@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [patch] m68k, mm: set all online nodes in N_NORMAL_MEMORY

For m68k, N_NORMAL_MEMORY represents all nodes that have present memory 
since it does not support HIGHMEM.  This patch sets the bit at the time 
the node is brought online.

If N_NORMAL_MEMORY is not accurate, slub may encounter errors since it 
uses this nodemask to setup per-cache kmem_cache_node data structures.

Signed-off-by: David Rientjes <rientjes@...gle.com>
---
 arch/m68k/mm/init_mm.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/m68k/mm/init_mm.c b/arch/m68k/mm/init_mm.c
--- a/arch/m68k/mm/init_mm.c
+++ b/arch/m68k/mm/init_mm.c
@@ -59,6 +59,8 @@ void __init m68k_setup_node(int node)
 	}
 #endif
 	pg_data_map[node].bdata = bootmem_node_data + node;
+	if (node_present_pages(node))
+		node_set_state(node, N_NORMAL_MEMORY);
 	node_set_online(node);
 }
 
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