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 19:42:44
Also in:
linux-mm, linux-sh, linuxppc-dev, lkml, sparclinux
On Thu, Aug 16, 2012 at 09:37:25PM +0300, Kirill A. Shutemov wrote:
On Thu, Aug 16, 2012 at 08:29:44PM +0200, Andrea Arcangeli wrote:quoted
On Thu, Aug 16, 2012 at 07:43:56PM +0300, Kirill A. Shutemov wrote:quoted
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?Runtime code patching. See Documentation/static-keys.txt. We can patch it on sysctl.
I guessed it had to be patching the code, thanks for the pointer. It looks a perfect fit for this one agreed.