Fix broken kmalloc_node in rc1/rc2

[Christoph Lameter <christoph@lameter.com>]

This patch used to be in Andrew's tree before the NUMA slab allocator went 
in. Either this patch or the NUMA slab allocator is needed in order for
kmalloc_node to work correctly.

pcibus_to_node may be used to generate the node information passed to 
kmalloc_node. pcibus_to_node returns -1 if it was not able to determine
on which node a pcibus is located. For that case kmalloc_node must
work like kmalloc.

Signed-off-by: Christoph Lameter <christoph@lameter.com>

Index: linux-2.6.13-rc2/mm/slab.c
===================================================================
--- linux-2.6.13-rc2.orig/mm/slab.c	2005-07-06 03:46:33.000000000 +0000
+++ linux-2.6.13-rc2/mm/slab.c	2005-07-06 17:34:19.000000000 +0000
@@ -2372,6 +2372,9 @@ void *kmem_cache_alloc_node(kmem_cache_t
 	struct slab *slabp;
 	kmem_bufctl_t next;
 
+	if (nodeid == -1)
+		return kmem_cache_alloc(cachep, flags);
+
 	for (loop = 0;;loop++) {
 		struct list_head *q;