From e48e67e08c340def3d0349c2910d23c7985fb6fa Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 24 May 2010 14:31:57 -0700 Subject: sparsemem: on no vmemmap path put mem_map on node high too We need to put mem_map high when virtual memmap is not used. before this patch free mem pfn range on first node: [ 0.000000] 19 - 1f [ 0.000000] 28 40 - 80 95 [ 0.000000] 702 740 - 1000 1000 [ 0.000000] 347c - 347e [ 0.000000] 34e7 3500 - 3b80 3b8b [ 0.000000] 73b8b 73bc0 - 73c00 73c00 [ 0.000000] 73ddd - 73e00 [ 0.000000] 73fdd - 74000 [ 0.000000] 741dd - 74200 [ 0.000000] 743dd - 74400 [ 0.000000] 745dd - 74600 [ 0.000000] 747dd - 74800 [ 0.000000] 749dd - 74a00 [ 0.000000] 74bdd - 74c00 [ 0.000000] 74ddd - 74e00 [ 0.000000] 74fdd - 75000 [ 0.000000] 751dd - 75200 [ 0.000000] 753dd - 75400 [ 0.000000] 755dd - 75600 [ 0.000000] 757dd - 75800 [ 0.000000] 759dd - 75a00 [ 0.000000] 79bdd 79c00 - 7d540 7d550 [ 0.000000] 7f745 - 7f750 [ 0.000000] 10000b 100040 - 2080000 2080000 so only 79c00 - 7d540 are major free block under 4g... after this patch, we will get [ 0.000000] 19 - 1f [ 0.000000] 28 40 - 80 95 [ 0.000000] 702 740 - 1000 1000 [ 0.000000] 347c - 347e [ 0.000000] 34e7 3500 - 3600 3600 [ 0.000000] 37dd - 3800 [ 0.000000] 39dd - 3a00 [ 0.000000] 3bdd - 3c00 [ 0.000000] 3ddd - 3e00 [ 0.000000] 3fdd - 4000 [ 0.000000] 41dd - 4200 [ 0.000000] 43dd - 4400 [ 0.000000] 45dd - 4600 [ 0.000000] 47dd - 4800 [ 0.000000] 49dd - 4a00 [ 0.000000] 4bdd - 4c00 [ 0.000000] 4ddd - 4e00 [ 0.000000] 4fdd - 5000 [ 0.000000] 51dd - 5200 [ 0.000000] 53dd - 5400 [ 0.000000] 95dd 9600 - 7d540 7d550 [ 0.000000] 7f745 - 7f750 [ 0.000000] 17000b 170040 - 2080000 2080000 we will have 9600 - 7d540 for major free block... sparse-vmemmap path already used __alloc_bootmem_node_high() Signed-off-by: Yinghai Lu Cc: Jiri Slaby Cc: "H. Peter Anvin" Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Christoph Lameter Cc: Greg Thelen Cc: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/sparse.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/mm/sparse.c b/mm/sparse.c index dc0cc4d43ff..95ac219af37 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -382,13 +382,15 @@ static void __init sparse_early_usemaps_alloc_node(unsigned long**usemap_map, struct page __init *sparse_mem_map_populate(unsigned long pnum, int nid) { struct page *map; + unsigned long size; map = alloc_remap(nid, sizeof(struct page) * PAGES_PER_SECTION); if (map) return map; - map = alloc_bootmem_pages_node(NODE_DATA(nid), - PAGE_ALIGN(sizeof(struct page) * PAGES_PER_SECTION)); + size = PAGE_ALIGN(sizeof(struct page) * PAGES_PER_SECTION); + map = __alloc_bootmem_node_high(NODE_DATA(nid), size, + PAGE_SIZE, __pa(MAX_DMA_ADDRESS)); return map; } void __init sparse_mem_maps_populate_node(struct page **map_map, @@ -412,7 +414,8 @@ void __init sparse_mem_maps_populate_node(struct page **map_map, } size = PAGE_ALIGN(size); - map = alloc_bootmem_pages_node(NODE_DATA(nodeid), size * map_count); + map = __alloc_bootmem_node_high(NODE_DATA(nodeid), size * map_count, + PAGE_SIZE, __pa(MAX_DMA_ADDRESS)); if (map) { for (pnum = pnum_begin; pnum < pnum_end; pnum++) { if (!present_section_nr(pnum)) -- cgit v1.2.3-70-g09d2