On Sat, 23 Jan 2016, Mike Galbraith wrote: > While you're fixing that commit up, can you perhaps find a better home > for quiet_vmstat()? It not only munches cycles when switching cross > -core mightily, for -rt it injects a sleeping lock into the idle task.
Not sure what you are talking about. No sleeping locks are used in quiet_vmstat() nor does it switch across cores. It would be broken if it would do so.

