linux-kernel - Re: [patch 3/3] isolcpus: undeprecate on documentation

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Message-ID: <20200331154146.GA28556@fuller.cnet>
Date:   Tue, 31 Mar 2020 12:41:46 -0300
From:   Marcelo Tosatti <mtosatti@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org,
        Frederic Weisbecker <fweisbec@...il.com>,
        Chris Friesen <chris.friesen@...driver.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jim Somerville <Jim.Somerville@...driver.com>,
        Christoph Lameter <cl@...ux.com>
Subject: Re: [patch 3/3] isolcpus: undeprecate on documentation

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@...driver.com>
> > Signed-off-by: Marcelo Tosatti <mtosatti@...hat.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?