From 442295c94bf650221af3ef20fc68fa3e93876818 Mon Sep 17 00:00:00 2001
From: Paul Jackson <pj@sgi.com>
Date: Wed, 22 Mar 2006 00:09:11 -0800
Subject: [PATCH] [PATCH] mm: slab cache interleave rotor fix

The alien cache rotor in mm/slab.c assumes that the first online node is
node 0.  Eventually for some archs, especially with hotplug, this will no
longer be true.

Fix the interleave rotor to handle the general case of node numbering.

Signed-off-by: Paul Jackson <pj@sgi.com>
Acked-by: Christoph Lameter <clameter@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 mm/slab.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slab.c b/mm/slab.c
index 6b691ecbac44..1c8f5ee230d5 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -830,7 +830,7 @@ static void init_reap_node(int cpu)
 
 	node = next_node(cpu_to_node(cpu), node_online_map);
 	if (node == MAX_NUMNODES)
-		node = 0;
+		node = first_node(node_online_map);
 
 	__get_cpu_var(reap_node) = node;
 }
-- 
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