Re: [PATCH v3 1/8] mm/page_ext: resurrect struct page extending code for debugging

2014-12-02 Thread Joonsoo Kim
On Mon, Nov 24, 2014 at 05:15:19PM +0900, Joonsoo Kim wrote: > When we debug something, we'd like to insert some information to > every page. For this purpose, we sometimes modify struct page itself. > But, this has drawbacks. First, it requires re-compile. This makes us > hesitate to use the power

[PATCH v3 1/8] mm/page_ext: resurrect struct page extending code for debugging

2014-11-24 Thread Joonsoo Kim
When we debug something, we'd like to insert some information to every page. For this purpose, we sometimes modify struct page itself. But, this has drawbacks. First, it requires re-compile. This makes us hesitate to use the powerful debug feature so development process is slowed down. And, second,