slab: partially revert list3 changes

Partial revert the changes made by 04231b3002ac53f8a64a7bd142fde3fa4b6808c6
to the kmem_list3 management. On a machine with a memoryless node, this
BUG_ON was triggering

	static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
	{
		struct list_head *entry;
		struct slab *slabp;
		struct kmem_list3 *l3;
		void *obj;
		int x;

		l3 = cachep->nodelists[nodeid];
		BUG_ON(!l3);

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Christoph Lameter <clameter@sgi.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/slab.c b/mm/slab.c
index aebb9f68557a514d0b962f268937bcf037249211..b03b2e46b8066cc077eaf75891e89c48b88c054e 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1590,7 +1590,7 @@ void __init kmem_cache_init(void)
                /* Replace the static kmem_list3 structures for the boot cpu */
                init_list(&cache_cache, &initkmem_list3[CACHE_CACHE], node);
 
-               for_each_node_state(nid, N_NORMAL_MEMORY) {
+               for_each_online_node(nid) {
                        init_list(malloc_sizes[INDEX_AC].cs_cachep,
                                  &initkmem_list3[SIZE_AC + nid], nid);
 
@@ -1968,7 +1968,7 @@ static void __init set_up_list3s(struct kmem_cache *cachep, int index)
 {
        int node;
 
-       for_each_node_state(node, N_NORMAL_MEMORY) {
+       for_each_online_node(node) {
                cachep->nodelists[node] = &initkmem_list3[index + node];
                cachep->nodelists[node]->next_reap = jiffies +
                    REAPTIMEOUT_LIST3 +
@@ -3815,7 +3815,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep)
        struct array_cache *new_shared;
        struct array_cache **new_alien = NULL;
 
-       for_each_node_state(node, N_NORMAL_MEMORY) {
+       for_each_online_node(node) {
 
                 if (use_alien_caches) {
                         new_alien = alloc_alien_cache(node, cachep->limit);