From 9e1da1f4f5d7b13857317c964a3d68f3836863bb Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 3 Apr 2022 21:59:48 +0200
Subject: [PATCH] Kernel: Add a little explainer comment above RegionTree

---
 Kernel/Memory/RegionTree.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Kernel/Memory/RegionTree.h b/Kernel/Memory/RegionTree.h
index ccd42a8bdf..8fe7f8ec8b 100644
--- a/Kernel/Memory/RegionTree.h
+++ b/Kernel/Memory/RegionTree.h
@@ -20,6 +20,9 @@ enum class RandomizeVirtualAddress {
     Yes,
 };
 
+// RegionTree represents a virtual address space.
+// It is used by MemoryManager for kernel VM and by AddressSpace for user VM.
+// Regions are stored in an intrusive data structure and there are no allocations when interacting with it.
 class RegionTree {
     AK_MAKE_NONCOPYABLE(RegionTree);
     AK_MAKE_NONMOVABLE(RegionTree);