From 73d60b7f747176dbdff826c4127d22e1fd3f9f74 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 16 Jun 2009 15:33:00 -0700 Subject: [PATCH] page-allocator: clear N_HIGH_MEMORY map before we set it again SRAT tables may contains nodes of very small size. The arch code may decide to not activate such a node. However, currently the early boot code sets N_HIGH_MEMORY for such nodes. These nodes therefore seem to be active although these nodes have no present pages. For 64bit N_HIGH_MEMORY == N_NORMAL_MEMORY, so that works for 64 bit too Signed-off-by: Yinghai Lu Tested-by: Jack Steiner Acked-by: Christoph Lameter Cc: Mel Gorman Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/page_alloc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c5fb017c9430..6407cbfccd77 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4204,6 +4204,11 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn) early_node_map[i].start_pfn, early_node_map[i].end_pfn); + /* + * find_zone_movable_pfns_for_nodes/early_calculate_totalpages init + * that node_mask, clear it at first + */ + nodes_clear(node_states[N_HIGH_MEMORY]); /* Initialise every node */ mminit_verify_pageflags_layout(); setup_nr_node_ids(); -- 2.30.2