tipc: fix connection abort when receiving invalid cancel request

[cascardo/linux.git] / mm / page_isolation.c

diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 5e139fe..92c4c36 100644 (file)
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -196,8 +196,10 @@ int undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
 {
        unsigned long pfn;
        struct page *page;
-       BUG_ON((start_pfn) & (pageblock_nr_pages - 1));
-       BUG_ON((end_pfn) & (pageblock_nr_pages - 1));
+
+       BUG_ON(!IS_ALIGNED(start_pfn, pageblock_nr_pages));
+       BUG_ON(!IS_ALIGNED(end_pfn, pageblock_nr_pages));
+
        for (pfn = start_pfn;
             pfn < end_pfn;
             pfn += pageblock_nr_pages) {