[PATCH 12/16] page-flags: define PG_mlocked behavior on compound pages

[Kirill A. Shutemov]

Transparent huge pages can be mlocked -- whole compund page at once.
Something went wrong if we're trying to mlock() tail page.
Let's use NO_TAIL.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
---
 include/linux/page-flags.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 9ea90bb8cb89..a1ecec3f505f 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -340,8 +340,9 @@ PAGEFLAG(Unevictable, unevictable, HEAD)
 	TESTCLEARFLAG(Unevictable, unevictable, HEAD)
 
 #ifdef CONFIG_MMU
-PAGEFLAG(Mlocked, mlocked, ANY) __CLEARPAGEFLAG(Mlocked, mlocked, ANY)
-	TESTSCFLAG(Mlocked, mlocked, ANY) __TESTCLEARFLAG(Mlocked, mlocked, ANY)
+PAGEFLAG(Mlocked, mlocked, NO_TAIL) __CLEARPAGEFLAG(Mlocked, mlocked, NO_TAIL)
+	TESTSCFLAG(Mlocked, mlocked, NO_TAIL)
+	__TESTCLEARFLAG(Mlocked, mlocked, NO_TAIL)
 #else
 PAGEFLAG_FALSE(Mlocked) __CLEARPAGEFLAG_NOOP(Mlocked)
 	TESTSCFLAG_FALSE(Mlocked) __TESTCLEARFLAG_FALSE(Mlocked)
-- 
2.1.4

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