updated memory controller

[linux-2.6.git] / Documentation / ckrm / mem_rc.design

diff --git a/Documentation/ckrm/mem_rc.design b/Documentation/ckrm/mem_rc.design
index cb1d1cb..1c020ff 100644 (file)
--- a/Documentation/ckrm/mem_rc.design
+++ b/Documentation/ckrm/mem_rc.design
@@ -15,6 +15,10 @@ When the memory subsystem runs low on LRU pages, pages are reclaimed by
     - freeing pages from the inactive list (shrink_zone)
 depending on the recent usage of the page(approximately).
 
+In the process of the life cycle a page can move from the lru list to swap
+and back. For this document's purpose, we treat it same as freeing and
+allocating the page, respectfully.
+
 1. Introduction
 ---------------
 Memory resource controller controls the number of lru physical pages