[PATCH] mm: slab cache interleave rotor fix

[Paul Jackson <pj@sgi.com>]

From: Paul Jackson <pj@sgi.com>

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>

---

 mm/slab.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

--- 2.6.16-rc6-mm2.orig/mm/slab.c	2006-03-18 21:40:42.465283732 -0800
+++ 2.6.16-rc6-mm2/mm/slab.c	2006-03-18 21:53:10.440761398 -0800
@@ -835,7 +835,7 @@ 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;
 }

-- 
                          I won't rest till it's the best ...
                          Programmer, Linux Scalability
                          Paul Jackson <pj@sgi.com> 1.650.933.1373
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