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-rw-r--r--Documentation/vm/page-types.c2
-rw-r--r--Documentation/vm/pagemap.txt4
2 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/vm/page-types.c b/Documentation/vm/page-types.c
index 87f57228f56e..9899fa239eed 100644
--- a/Documentation/vm/page-types.c
+++ b/Documentation/vm/page-types.c
@@ -71,6 +71,7 @@
#define KPF_UNEVICTABLE 18
#define KPF_HWPOISON 19
#define KPF_NOPAGE 20
+#define KPF_KSM 21
/* [32-] kernel hacking assistances */
#define KPF_RESERVED 32
@@ -119,6 +120,7 @@ static char *page_flag_names[] = {
[KPF_UNEVICTABLE] = "u:unevictable",
[KPF_HWPOISON] = "X:hwpoison",
[KPF_NOPAGE] = "n:nopage",
+ [KPF_KSM] = "x:ksm",
[KPF_RESERVED] = "r:reserved",
[KPF_MLOCKED] = "m:mlocked",
diff --git a/Documentation/vm/pagemap.txt b/Documentation/vm/pagemap.txt
index 2fdd84a19109..df09b9650a81 100644
--- a/Documentation/vm/pagemap.txt
+++ b/Documentation/vm/pagemap.txt
@@ -59,6 +59,7 @@ There are three components to pagemap:
18. UNEVICTABLE
19. HWPOISON
20. NOPAGE
+ 21. KSM
Short descriptions to the page flags:
@@ -93,6 +94,9 @@ Short descriptions to the page flags:
20. NOPAGE
no page frame exists at the requested address
+21. KSM
+ identical memory pages dynamically shared between one or more processes
+
[IO related page flags]
1. ERROR IO error occurred
3. UPTODATE page has up-to-date data
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