On Mon, Sep 28, 2020 at 02:35:27PM -0400, Nitesh Narayan Lal wrote: > Extend nohz_full feature set to include isolation from managed IRQS. This
So you say it's for managed-irqs, the feature is actually called MANAGED_IRQ, but, AFAICT, it does *NOT* in fact affect managed IRQs. Also, as per Thomas' earlier points, managed-irqs are in fact perfectly fine and don't need help at at... > is required specifically for setups that only uses nohz_full and still > requires isolation for maintaining lower latency for the listed CPUs. > > Suggested-by: Frederic Weisbecker <frede...@kernel.org> > Signed-off-by: Nitesh Narayan Lal <nit...@redhat.com> > --- > kernel/sched/isolation.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c > index 5a6ea03f9882..9df9598a9e39 100644 > --- a/kernel/sched/isolation.c > +++ b/kernel/sched/isolation.c > @@ -141,7 +141,7 @@ static int __init housekeeping_nohz_full_setup(char *str) > unsigned int flags; > > flags = HK_FLAG_TICK | HK_FLAG_WQ | HK_FLAG_TIMER | HK_FLAG_RCU | > - HK_FLAG_MISC | HK_FLAG_KTHREAD; > + HK_FLAG_MISC | HK_FLAG_KTHREAD | HK_FLAG_MANAGED_IRQ; > > return housekeeping_setup(str, flags); > } > -- > 2.18.2 >
