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Commit 6f8d2b8a authored by Wang Xiaoqiang's avatar Wang Xiaoqiang Committed by Linus Torvalds
Browse files

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: default avatarWang Xiaoqiang <wang_xiaoq@126.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 036fbb21

mm/page_isolation.c

+4 −2
Original line number Diff line number Diff line
@@ -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) {