From 888b9f7c58ebe8303bad817cd554df887a683957 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 16 Sep 2009 11:50:11 +0200 Subject: HWPOISON: Handle hardware poisoned pages in try_to_unmap When a page has the poison bit set replace the PTE with a poison entry. This causes the right error handling to be done later when a process runs into it. v2: add a new flag to not do that (needed for the memory-failure handler later) (Fengguang) v3: remove unnecessary is_migration_entry() test (Fengguang, Minchan) Reviewed-by: Minchan Kim Reviewed-by: Wu Fengguang Signed-off-by: Andi Kleen --- include/linux/rmap.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/rmap.h') diff --git a/include/linux/rmap.h b/include/linux/rmap.h index 4c4a2d4d289e..ce989f1fc2ed 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -93,6 +93,7 @@ enum ttu_flags { TTU_IGNORE_MLOCK = (1 << 8), /* ignore mlock */ TTU_IGNORE_ACCESS = (1 << 9), /* don't age */ + TTU_IGNORE_HWPOISON = (1 << 10),/* corrupted page is recoverable */ }; #define TTU_ACTION(x) ((x) & TTU_ACTION_MASK) -- cgit v1.2.3-55-g7522