linux-kernel - Re: [PATCH V2] clockevents: Fix cpu down race for hrtimer based broadcasting

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Message-ID: <20150402125819.GX23123@twins.programming.kicks-ass.net>
Date:	Thu, 2 Apr 2015 14:58:19 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Preeti U Murthy <preeti@...ux.vnet.ibm.com>, mpe@...erman.id.au,
	tglx@...utronix.de, rjw@...ysocki.net, nicolas.pitre@...aro.org,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] clockevents: Fix cpu down race for hrtimer based
 broadcasting

On Thu, Apr 02, 2015 at 02:12:47PM +0200, Ingo Molnar wrote:
> Okay. I'll resurrect the fix with a hotplug_cpu__tick_pull() name - 
> agreed?

Sure.

> > > Also, I improved the changelog (attached below), but decided 
> > > against applying it until these questions are cleared - please use 
> > > that for future versions of this patch.
> > 
> > 
> > > Fixes: http://linuxppc.10917.n7.nabble.com/offlining-cpus-breakage-td88619.html
> > 
> > You forgot to fix the Fixes line ;-)
> > 
> > My copy has:
> > 
> >  Fixes: 5d1638acb9f6 ("tick: Introduce hrtimer based broadcast")
> 
> Hm, not sure how that got lost - my git-log of the patch ported on top 
> of timers/core still has it:


> Suggested-by: Thomas Gleixner <tglx@...utronix.de>
> Tested-by: Nicolas Pitre <nico@...aro.org>
> Signed-off-by: Preeti U. Murthy <preeti@...ux.vnet.ibm.com>
> Cc: linuxppc-dev@...ts.ozlabs.org
> Cc: mpe@...erman.id.au
> Cc: nicolas.pitre@...aro.org
> Cc: peterz@...radead.org
> Cc: rjw@...ysocki.net
> Fixes: http://linuxppc.10917.n7.nabble.com/offlining-cpus-breakage-td88619.html
> Link: http://lkml.kernel.org/r/20150330092410.24979.59887.stgit@preeti.in.ibm.com
> [ Merged it to the latest timer tree, tidied up the changelog. ]
> Signed-off-by: Ingo Molnar <mingo@...nel.org>

That doesn't have my Sob in it, so you took it from the list yourself,
not from my queue. I also (concurrently it seems) fixed up the Changelog
some :-)
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