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.
