# Re: \[PATCH v3 6/7\] mm: make clear\_huge\_page cache clear only around the fault address

- From: Andrea Arcangeli \<hidden\>
- Date: 2012-08-16 18:34:30 
- List: linux-sh
- Page: https://ratatoskr.run/linux-sh/2012/08/3909658
- Thread: https://ratatoskr.run/linux-mm/2012/08/3909510/t.md

```text
On Thu, Aug 16, 2012 at 07:43:56PM +0300, Kirill A. Shutemov wrote:
> Hm.. I think with static_key we can avoid cache overhead here. I'll try.

Could you elaborate on the static_key? Is it some sort of self
modifying code?

> Thanks, for review. Could you take a look at huge zero page patchset? ;)

I've noticed that too, nice :). I'm checking some detail on the
wrprotect fault behavior but I'll comment there.
```