Messages in this thread | | | Date | Thu, 16 Aug 2012 21:42:10 +0200 | From | Andrea Arcangeli <> | Subject | Re: [PATCH v3 6/7] mm: make clear_huge_page cache clear only around the fault address |
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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: > > 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? > > 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.
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