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

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Message-Id: <20170704093232.995040438@linutronix.de>
Date:   Tue, 04 Jul 2017 11:32:32 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     linux-mm@...ck.org, Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Michal Hocko <mhocko@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: [patch V2 0/2] mm/memory_hotplug: Cure potential deadlocks vs. cpu
 hotplug lock

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.

Applies against Linus head. All preliminaries are merged there already

Thanks,

	tglx
---
 include/linux/swap.h |    1 
 mm/memory_hotplug.c  |   89 ++++++++-------------------------------------------
 mm/page_alloc.c      |    2 -
 mm/swap.c            |   11 ++++--
 4 files changed, 25 insertions(+), 78 deletions(-)