Re: [patch 3/3] isolcpus: undeprecate on documentation

Peter Zijlstra
2020-03-31T15:57:19Z

On Tue, Mar 31, 2020 at 12:41:46PM -0300, Marcelo Tosatti wrote:
> On Tue, Mar 31, 2020 at 05:22:17PM +0200, Peter Zijlstra wrote:
> > On Sat, Mar 28, 2020 at 12:21:20PM -0300, Marcelo Tosatti wrote:
> > > isolcpus is used to control steering of interrupts to managed_irqs and
> > > kernel threads, therefore its incorrect to state that its deprecated.
> > >
> > > Remove deprecation warning.
> > >
> > > Suggested-by: Chris Friesen <chris.friesen@windriver.com>
> > > Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
> > >
> > > ---
> > > Documentation/admin-guide/kernel-parameters.txt | 1 -
> > > 1 file changed, 1 deletion(-)
> > >
> > > Index: linux-2.6/Documentation/admin-guide/kernel-parameters.txt
> > > ===================================================================
> > > --- linux-2.6.orig/Documentation/admin-guide/kernel-parameters.txt
> > > +++ linux-2.6/Documentation/admin-guide/kernel-parameters.txt
> > > @@ -1926,7 +1926,6 @@
> > > Format: <RDP>,<reset>,<pci_scan>,<verbosity>
> > >
> > > isolcpus= [KNL,SMP,ISOL] Isolate a given set of CPUs from disturbance.
> > > - [Deprecated - use cpusets instead]
> > > Format: [flag-list,]<cpu-list>
> > >
> >
> > It's still an absolute horrible piece of crap though. nozh_full piling
> > more and more shit on it doesn't make it more shiny.
>
> Hi Peter,
>
> Why do you dislike it? What you think would be a decent approach?

Try and reconfigure it after boot.