# Re: \[PATCH 3/3\] mm: idle memory tracking

- From: Cyrill Gorcunov \<hidden\>
- Date: 2015-03-19 10:45:29 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2015/03/4454707
- Thread: https://ratatoskr.run/linux-api/2015/03/4454272/t.md

```text
On Thu, Mar 19, 2015 at 01:41:03PM +0300, Vladimir Davydov wrote:
> > 
> > Vladimir, might we need get_online_mems/put_online_mems here,
> > or if node gets offline this wont be a problem? (Asking
> > because i don't know).
> 
> I only need to dereference page structs corresponding to the node here,
> and page structs are not freed when the node gets offline AFAICS, so I
> guess it must be safe.

OK, thanks for info!
```