Subject: slub/NUMA: Disable remote node defragmentation by default

Switch remote node defragmentation off by default. The current settings can
cause excessive node local allocations with hackbench. (Note that this feature
is not related to slab defragmentation).

Signed-off-by: Christoph Lameter <cl@linux-foundation.org>

---
 mm/slub.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c	2008-08-19 06:45:54.732348449 -0700
+++ linux-2.6/mm/slub.c	2008-08-19 06:46:12.442348249 -0700
@@ -2312,7 +2312,7 @@ static int kmem_cache_open(struct kmem_c
 
 	s->refcount = 1;
 #ifdef CONFIG_NUMA
-	s->remote_node_defrag_ratio = 100;
+	s->remote_node_defrag_ratio = 1000;
 #endif
 	if (!init_kmem_cache_nodes(s, gfpflags & ~SLUB_DMA))
 		goto error;
@@ -4058,7 +4058,7 @@ static ssize_t remote_node_defrag_ratio_
 	if (err)
 		return err;
 
-	if (ratio < 100)
+	if (ratio <= 100)
 		s->remote_node_defrag_ratio = ratio * 10;
 
 	return length;