At 08/03/2012 03:49 PM, we...@cn.fujitsu.com Wrote:
> From: Wen Congyang
This line is wrong. This patch is from Yasuaki Ishimatsu
>
> All pages of virtual mapping in removed memory cannot be freed, since some
> pages
> used as PGD/PUD includes not only removed memory but also other memory. S
From: Wen Congyang
All pages of virtual mapping in removed memory cannot be freed, since some pages
used as PGD/PUD includes not only removed memory but also other memory. So the
patch checks whether page can be freed or not.
How to check whether page can be freed or not?
1. When removing memor