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Commit 0c9ad804 authored by Weijie Yang's avatar Weijie Yang Committed by Linus Torvalds
Browse files

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: default avatarWeijie Yang <weijie.yang@samsung.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d70c17d4

include/linux/mmzone.h

+1 −1
Original line number Diff line number Diff line
@@ -1063,7 +1063,7 @@ struct mem_section { 
	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;