mm: exclude memoryless nodes from zone_reclaim

[cascardo/linux.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 979378d..336ee92 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1870,7 +1870,7 @@ static void __paginginit init_zone_allows_reclaim(int nid)
 {
        int i;
 
-       for_each_online_node(i)
+       for_each_node_state(i, N_MEMORY)
                if (node_distance(nid, i) <= RECLAIM_DISTANCE)
                        node_set(i, NODE_DATA(nid)->reclaim_nodes);
                else
@@ -4919,7 +4919,8 @@ void __paginginit free_area_init_node(int nid, unsigned long *zones_size,
 
        pgdat->node_id = nid;
        pgdat->node_start_pfn = node_start_pfn;
-       init_zone_allows_reclaim(nid);
+       if (node_state(nid, N_MEMORY))
+               init_zone_allows_reclaim(nid);
 #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
        get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
 #endif