summaryrefslogtreecommitdiffstats
path: root/Documentation/mm
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/mm')
-rw-r--r--Documentation/mm/vmemmap_dedup.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/mm/vmemmap_dedup.rst b/Documentation/mm/vmemmap_dedup.rst
index c9c495f62d12..7d7a161aa364 100644
--- a/Documentation/mm/vmemmap_dedup.rst
+++ b/Documentation/mm/vmemmap_dedup.rst
@@ -7,6 +7,8 @@ A vmemmap diet for HugeTLB and Device DAX
HugeTLB
=======
+This section is to explain how HugeTLB Vmemmap Optimization (HVO) works.
+
The struct page structures (page structs) are used to describe a physical
page frame. By default, there is a one-to-one mapping from a page frame to
it's corresponding page struct.