linux-kernel - Re: [patch V2 0/2] mm/memory_hotplug: Cure potential deadlocks vs. cpu hotplug lock

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Message-Id: <20170705145334.d73a30dda944855349e522ed@linux-foundation.org>
Date:   Wed, 5 Jul 2017 14:53:34 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Michal Hocko <mhocko@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [patch V2 0/2] mm/memory_hotplug: Cure potential deadlocks vs.
 cpu hotplug lock

On Tue, 04 Jul 2017 11:32:32 +0200 Thomas Gleixner <tglx@...utronix.de> wrote:

> Andrey reported a potential deadlock with the memory hotplug lock and the
> cpu hotplug lock.
> 
> The following series addresses this by reworking the memory hotplug locking
> and fixing up the potential deadlock scenarios.

Do you think we should squeeze this into 4.13-rc1, or can we afford to
take the more cautious route?