[PATCH 11/16] page-flags: define PG_swapcache behavior on compound pages

From: Kirill A. Shutemov
Date: Thu Sep 24 2015 - 10:56:51 EST

Swap cannot handle compound pages so far. Transparent huge pages are
split on the way to swap.

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

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index a31d682caeb2..c933416b2f92 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -306,7 +306,7 @@ PAGEFLAG_FALSE(HighMem)

-PAGEFLAG(SwapCache, swapcache, PF_ANY)
+PAGEFLAG(SwapCache, swapcache, PF_NO_COMPOUND)

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