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authorIngo Molnar <mingo@elte.hu>2008-09-04 13:02:35 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-04 13:02:35 +0200
commit42390cdec5f6e6e2ee54f308474a6ef7dd16aa5c (patch)
treee9684c84f53272319a5acd4b9c86503f30274a51 /mm/page_alloc.c
parent11c231a962c740b3216eb6565149ae5a7944cba7 (diff)
parentd210baf53b699fc61aa891c177b71d7082d3b957 (diff)
Merge branch 'linus' into x86/x2apic
Conflicts: arch/x86/kernel/cpu/cyrix.c include/asm-x86/cpufeature.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index af982f7cdb2..e293c58bea5 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -694,6 +694,9 @@ static int move_freepages(struct zone *zone,
#endif
for (page = start_page; page <= end_page;) {
+ /* Make sure we are not inadvertently changing nodes */
+ VM_BUG_ON(page_to_nid(page) != zone_to_nid(zone));
+
if (!pfn_valid_within(page_to_pfn(page))) {
page++;
continue;
@@ -2516,6 +2519,10 @@ static void setup_zone_migrate_reserve(struct zone *zone)
continue;
page = pfn_to_page(pfn);
+ /* Watch out for overlapping nodes */
+ if (page_to_nid(page) != zone_to_nid(zone))
+ continue;
+
/* Blocks with reserved pages will never free, skip them. */
if (PageReserved(page))
continue;
@@ -4064,7 +4071,7 @@ void __init set_dma_reserve(unsigned long new_dma_reserve)
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
-struct pglist_data contig_page_data = { .bdata = &bootmem_node_data[0] };
+struct pglist_data __refdata contig_page_data = { .bdata = &bootmem_node_data[0] };
EXPORT_SYMBOL(contig_page_data);
#endif