2 files changed, 13 insertions, 1 deletions

diff --git a/Documentation/vm/pagemap.txt b/Documentation/vm/pagemap.txt
index 6fbd55ef6b45..6bfbc172cdb9 100644
--- a/Documentation/vm/pagemap.txt
+++ b/Documentation/vm/pagemap.txt
@@ -131,7 +131,8 @@ Short descriptions to the page flags:
 13. SWAPCACHE   page is mapped to swap space, ie. has an associated swap entry
 14. SWAPBACKED  page is backed by swap/RAM
 
-The page-types tool in this directory can be used to query the above flags.
+The page-types tool in the tools/vm directory can be used to query the
+above flags.
 
 Using pagemap to do something useful:
 
diff --git a/Documentation/vm/transhuge.txt b/Documentation/vm/transhuge.txt
index 6b31cfbe2a9a..8143b9e8373d 100644
--- a/Documentation/vm/transhuge.txt
+++ b/Documentation/vm/transhuge.txt
@@ -159,6 +159,17 @@ for each pass:
 
 /sys/kernel/mm/transparent_hugepage/khugepaged/full_scans
 
+max_ptes_none specifies how many extra small pages (that are
+not already mapped) can be allocated when collapsing a group
+of small pages into one large page.
+
+/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none
+
+A higher value leads to use additional memory for programs.
+A lower value leads to gain less thp performance. Value of
+max_ptes_none can waste cpu time very little, you can
+ignore it.
+
 == Boot parameter ==
 
 You can change the sysfs boot time defaults of Transparent Hugepage