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Commit f096e59e authored by Huang Shijie's avatar Huang Shijie Committed by Linus Torvalds
Browse files

include/linux/mm.h: remove unneeded ifdef 



The check code for CONFIG_SWAP is redundant, because there is a
non-CONFIG_SWAP version for PageSwapCache() which just returns 0.

Signed-off-by: default avatarHuang Shijie <shijie8@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c9d0bf24

include/linux/mm.h

+1 −4
Original line number Diff line number Diff line
@@ -643,12 +643,9 @@ static inline struct address_space *page_mapping(struct page *page) 
	struct address_space *mapping = page->mapping;



	VM_BUG_ON(PageSlab(page));

#ifdef CONFIG_SWAP

	if (unlikely(PageSwapCache(page)))

		mapping = &swapper_space;

	else

#endif

	if (unlikely((unsigned long)mapping & PAGE_MAPPING_ANON))

	else if (unlikely((unsigned long)mapping & PAGE_MAPPING_ANON))

		mapping = NULL;

	return mapping;

}