Hi Yafang, On Wed, Jun 29, 2022 at 8:49 AM Yafang Shao <laoar.shao@xxxxxxxxx> wrote: > > It doesn't need to do the preempt check when migrate is disabled > after commit > 74d862b682f5 ("sched: Make migrate_disable/enable() independent of RT"). > > Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx> > --- In my understanding, migrate_disable() doesn't imply preempt_disable(), I think this is not safe. Am I missing something? Hao