From 6f8d2b8a262c6b71e1464d488f41cccf9aafbc07 Mon Sep 17 00:00:00 2001 From: Wang Xiaoqiang Date: Fri, 15 Jan 2016 16:57:13 -0800 Subject: mm/page_isolation: do some cleanup in "undo_isolate_page_range" Use "IS_ALIGNED" to judge the alignment, rather than directly judging. Signed-off-by: Wang Xiaoqiang Cc: Naoya Horiguchi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/page_isolation.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'mm') diff --git a/mm/page_isolation.c b/mm/page_isolation.c index 5e139fec6c6c..92c4c36501e7 100644 --- 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) { -- cgit v1.2.3