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[PATCH 10/16] page-flags: define PG_swapbacked behavior on compound pages

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  [PATCH 10/16] page-flags: define PG_swapbacked behavior on compound pages "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2015-09-24 17:00 +0200

#1232157 — [PATCH 10/16] page-flags: define PG_swapbacked behavior on compound pages

PG_swapbacked is used for transparent huge pages. For head pages only.
Let's use PF_NO_TAIL policy.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
 include/linux/page-flags.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 5ba8130fffb5..a31d682caeb2 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -266,9 +266,9 @@ PAGEFLAG(Foreign, foreign, PF_NO_COMPOUND);
 
 PAGEFLAG(Reserved, reserved, PF_NO_COMPOUND)
 	__CLEARPAGEFLAG(Reserved, reserved, PF_NO_COMPOUND)
-PAGEFLAG(SwapBacked, swapbacked, PF_ANY)
-	__CLEARPAGEFLAG(SwapBacked, swapbacked, PF_ANY)
-	__SETPAGEFLAG(SwapBacked, swapbacked, PF_ANY)
+PAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL)
+	__CLEARPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL)
+	__SETPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL)
 
 /*
  * Private page markings that may be used by the filesystem that owns the page
-- 
2.5.1

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