On Thu, Mar 29, 2018 at 02:00:01PM +0200, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wyso...@intel.com> > > Prepare the scheduler tick code for reworking the idle loop to > avoid stopping the tick in some cases. > > The idea is to split the nohz idle entry call to decouple the idle > time stats accounting and preparatory work from the actual tick stop > code, in order to later be able to delay the tick stop once we reach > more power-knowledgeable callers. > > Move away the tick_nohz_start_idle() invocation from > __tick_nohz_idle_enter(), rename the latter to > __tick_nohz_idle_stop_tick() and define tick_nohz_idle_stop_tick() > as a wrapper around it for calling it from the outside. > > Make tick_nohz_idle_enter() only call tick_nohz_start_idle() instead > of calling the entire __tick_nohz_idle_enter(), add another wrapper > disabling and enabling interrupts around tick_nohz_idle_stop_tick() > and make the current callers of tick_nohz_idle_enter() call it too > to retain their current functionality. > > Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Reviewed-by: Frederic Weisbecker <frede...@kernel.org> Thanks!
