Cc: Vegard Nossum <vegard.nossum@...>, Linux Kernel Mailing List <linux-kernel@...>, Ingo Molnar <mingo@...>, Peter Zijlstra <a.p.zijlstra@...>, Paul E. McKenney <paulmck@...>, Christoph Lameter <clameter@...>, Daniel Walker <dwalker@...>, Andi Kleen <andi@...>, Randy Dunlap <randy.dunlap@...>, Josh Aune <luken@...>, Pekka Paalanen <pq@...>