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authorYinghai Lu <yinghai@kernel.org>2009-06-16 15:33:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 19:47:43 -0700
commit73d60b7f747176dbdff826c4127d22e1fd3f9f74 (patch)
treed4f72cfe145ed3d2ae19a56fe9f9f6424d597c44 /mm/page_alloc.c
parent286973552f051404abdb58dd9b2f8f7558efe4e5 (diff)
downloadconfigs-73d60b7f747176dbdff826c4127d22e1fd3f9f74.tar.gz
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 <Yinghai@kernel.org> Tested-by: Jack Steiner <steiner@sgi.com> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c5fb017c943..6407cbfccd7 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();