diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 401d104d2bb..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 @@ -4437,7 +4444,7 @@ void *__init alloc_large_system_hash(const char *tablename, do { size = bucketsize << log2qty; if (flags & HASH_EARLY) - table = alloc_bootmem(size); + table = alloc_bootmem_nopanic(size); else if (hashdist) table = __vmalloc(size, GFP_ATOMIC, PAGE_KERNEL); else { |