On Thu, 22 Sep 2016, Tim Chen wrote: > On Wed, 2016-09-21 at 22:30 +0200, Rafael J. Wysocki wrote: > > My current understanding is that we need to rebuild sched domains > > after setting the priorities, > > No, that's not true. We need to rebuild the sched domains only > when the sched domain flags are changed, not when we are changing > the priorities. Only the sched domain flag is a property of > the sched domain. CPU priority values are not part of sched domain. > > Morten had similar question about whether we need to rebuild sched domain > when we change cpu priorities when we first post the patches. > Peter has explained that it wasn't necessary. > http://lkml.iu.edu/hypermail/linux/kernel/1608.3/01753.html And why is there no explanation in form of a comment in the code? Thanks, tglx