Current PageAnon() is always return false for tail. We need to look on head page for correct answer. Let's change the function to give the right result.
Signed-off-by: Kirill A. Shutemov <[email protected]> --- include/linux/mm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 9f4960bf505b..a60e2db5f9f9 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -983,6 +983,7 @@ struct address_space *page_file_mapping(struct page *page) static inline int PageAnon(struct page *page) { + page = compound_head(page); return ((unsigned long)page->mapping & PAGE_MAPPING_ANON) != 0; } -- 2.0.0.rc4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
