mm fix commmets: if SPARSEMEM, pgdata doesn't have page_ext
If SPARSEMEM, use page_ext in mem_section
if !SPARSEMEM, use page_ext in pgdata
Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 8dd0333..02069c2 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1063,7 +1063,7 @@
unsigned long *pageblock_flags;
#ifdef CONFIG_PAGE_EXTENSION
/*
- * If !SPARSEMEM, pgdat doesn't have page_ext pointer. We use
+ * If SPARSEMEM, pgdat doesn't have page_ext pointer. We use
* section. (see page_ext.h about this.)
*/
struct page_ext *page_ext;