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| author | Yinghai Lu <yinghai@kernel.org> | 2009-06-16 15:33:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 19:47:43 -0700 |
| commit | 73d60b7f747176dbdff826c4127d22e1fd3f9f74 (patch) | |
| tree | d4f72cfe145ed3d2ae19a56fe9f9f6424d597c44 /mm | |
| parent | 286973552f051404abdb58dd9b2f8f7558efe4e5 (diff) | |
| download | lwn-73d60b7f747176dbdff826c4127d22e1fd3f9f74.tar.gz lwn-73d60b7f747176dbdff826c4127d22e1fd3f9f74.zip | |
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')
| -rw-r--r-- | mm/page_alloc.c | 5 |
1 files changed, 5 insertions, 0 deletions
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(); |