linux-kernel - Re: [PATCH] powerpc: Only obtain cpu_hotplug

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Message-ID: <alpine.DEB.2.20.1706221423580.1885@nanos>
Date:   Thu, 22 Jun 2017 14:24:42 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Thiago Jung Bauermann <bauerman@...ux.vnet.ibm.com>
cc:     Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        John Allen <jallen@...ux.vnet.ibm.com>,
        Michael Bringmann <mwb@...ux.vnet.ibm.com>,
        Nathan Fontenot <nfont@...ux.vnet.ibm.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [PATCH] powerpc: Only obtain cpu_hotplug_lock if called by
 rtasd

On Wed, 21 Jun 2017, Thiago Jung Bauermann wrote:
> Michael Ellerman <mpe@...erman.id.au> writes:
> >> Notes:
> >>     This patch applies on tip/smp/hotplug, it should probably be carried there.
> >
> > stop_machine_cpuslocked() doesn't exist in mainline so I think it has to
> > be carried there right?
> 
> Yes. I said "probably" because I don't know if you want to wait
> until that branch is merged so that you can carry this patch in your
> tree.

I'll pick it up for 4.12 and you folks can figure out the backporting once
that hits Linus tree.

Thanks,

	tglx