Only head pages are ever on LRU. Let's use HEAD policy to avoid any confusion for all LRU-related flags. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> --- include/linux/page-flags.h | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index df2493860821..bdb0d0e226c4 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -271,13 +271,14 @@ static inline struct page *compound_head_fast(struct page *page) __PAGEFLAG(Locked, locked, NO_TAIL) PAGEFLAG(Error, error, NO_COMPOUND) TESTCLEARFLAG(Error, error, NO_COMPOUND) -PAGEFLAG(Referenced, referenced, ANY) TESTCLEARFLAG(Referenced, referenced, ANY) - __SETPAGEFLAG(Referenced, referenced, ANY) +PAGEFLAG(Referenced, referenced, HEAD) + TESTCLEARFLAG(Referenced, referenced, HEAD) + __SETPAGEFLAG(Referenced, referenced, HEAD) PAGEFLAG(Dirty, dirty, HEAD) TESTSCFLAG(Dirty, dirty, HEAD) __CLEARPAGEFLAG(Dirty, dirty, HEAD) -PAGEFLAG(LRU, lru, ANY) __CLEARPAGEFLAG(LRU, lru, ANY) -PAGEFLAG(Active, active, ANY) __CLEARPAGEFLAG(Active, active, ANY) - TESTCLEARFLAG(Active, active, ANY) +PAGEFLAG(LRU, lru, HEAD) __CLEARPAGEFLAG(LRU, lru, HEAD) +PAGEFLAG(Active, active, HEAD) __CLEARPAGEFLAG(Active, active, HEAD) + TESTCLEARFLAG(Active, active, HEAD) __PAGEFLAG(Slab, slab, ANY) PAGEFLAG(Checked, checked, NO_COMPOUND) /* Used by some filesystems */ PAGEFLAG(Pinned, pinned, ANY) TESTSCFLAG(Pinned, pinned, ANY) /* Xen */ @@ -331,9 +332,9 @@ PAGEFLAG(SwapCache, swapcache, ANY) PAGEFLAG_FALSE(SwapCache) #endif -PAGEFLAG(Unevictable, unevictable, ANY) - __CLEARPAGEFLAG(Unevictable, unevictable, ANY) - TESTCLEARFLAG(Unevictable, unevictable, ANY) +PAGEFLAG(Unevictable, unevictable, HEAD) + __CLEARPAGEFLAG(Unevictable, unevictable, HEAD) + TESTCLEARFLAG(Unevictable, unevictable, HEAD) #ifdef CONFIG_MMU PAGEFLAG(Mlocked, mlocked, ANY) __CLEARPAGEFLAG(Mlocked, mlocked, ANY) -- 2.1.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>