linux-kernel - Re: [PATCH 0/2 v3] cpu hotplug: Preserve topology directory after soft remove event

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Message-ID: <20160928050548.GC6590@nazgul.tnic>
Date:   Wed, 28 Sep 2016 07:05:48 +0200
From:   Borislav Petkov <bp@...e.de>
To:     Prarit Bhargava <prarit@...hat.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Len Brown <len.brown@...el.com>,
        Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>,
        Juergen Gross <jgross@...e.com>
Subject: Re: [PATCH 0/2 v3] cpu hotplug: Preserve topology directory after
 soft remove event

On Tue, Sep 27, 2016 at 11:26:14AM -0400, Prarit Bhargava wrote:
> I see now that the issue is not understanding the difference between physical
> and soft thread removal.  I will write that up and get back to everyone.

No need - we understand the issue.

What I don't understand is what information you need *exactly* in sysfs
from the offlined cores and why. Something like "I need to know the id
of the thread on core X on socket Y because..."

I've been trying to get it out of you but I've failed so far at it.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--