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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: linux-mm@kvack.org, Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Michal Hocko <mhocko@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Vladimir Davydov <vdavydov.dev@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [patch V2 0/2] mm/memory_hotplug: Cure potential deadlocks vs. cpu hotplug lock
Date: Tue, 04 Jul 2017 11:32:32 +0200	[thread overview]
Message-ID: <20170704093232.995040438@linutronix.de> (raw)

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(-)

WARNING: multiple messages have this Message-ID (diff)
From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: linux-mm@kvack.org, Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Michal Hocko <mhocko@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Vladimir Davydov <vdavydov.dev@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [patch V2 0/2] mm/memory_hotplug: Cure potential deadlocks vs. cpu hotplug lock
Date: Tue, 04 Jul 2017 11:32:32 +0200	[thread overview]
Message-ID: <20170704093232.995040438@linutronix.de> (raw)

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(-)



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             reply	other threads:[~2017-07-04  9:36 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-04  9:32 Thomas Gleixner [this message]
2017-07-04  9:32 ` [patch V2 0/2] mm/memory_hotplug: Cure potential deadlocks vs. cpu hotplug lock Thomas Gleixner
2017-07-04  9:32 ` [patch V2 1/2] mm: swap: Provide lru_add_drain_all_cpuslocked() Thomas Gleixner
2017-07-04  9:32   ` Thomas Gleixner
2017-07-04 10:58   ` Michal Hocko
2017-07-04 10:58     ` Michal Hocko
2017-07-04 12:48     ` Thomas Gleixner
2017-07-04 12:48       ` Thomas Gleixner
2017-07-04 12:52       ` Michal Hocko
2017-07-04 12:52         ` Michal Hocko
2017-07-04 12:07   ` Vlastimil Babka
2017-07-04 12:07     ` Vlastimil Babka
2017-07-04 12:35     ` Thomas Gleixner
2017-07-04 12:35       ` Thomas Gleixner
2017-07-04  9:32 ` [patch V2 2/2] mm/memory-hotplug: Switch locking to a percpu rwsem Thomas Gleixner
2017-07-04  9:32   ` Thomas Gleixner
2017-07-04 10:59   ` Michal Hocko
2017-07-04 10:59     ` Michal Hocko
2017-07-04 12:10   ` Vlastimil Babka
2017-07-04 12:10     ` Vlastimil Babka
2017-07-04 12:49     ` Thomas Gleixner
2017-07-04 12:49       ` Thomas Gleixner
2017-07-04 15:01   ` Davidlohr Bueso
2017-07-04 15:01     ` Davidlohr Bueso
2017-07-04 15:22     ` Davidlohr Bueso
2017-07-04 15:22       ` Davidlohr Bueso
2017-07-04 15:32       ` Thomas Gleixner
2017-07-04 15:32         ` Thomas Gleixner
2017-07-04 15:42         ` Davidlohr Bueso
2017-07-04 15:42           ` Davidlohr Bueso
2017-07-05 21:53 ` [patch V2 0/2] mm/memory_hotplug: Cure potential deadlocks vs. cpu hotplug lock Andrew Morton
2017-07-05 21:53   ` Andrew Morton
2017-07-06  6:34   ` Thomas Gleixner
2017-07-06  6:34     ` Thomas Gleixner

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