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From: Anton Vorontsov <anton.vorontsov@linaro.org>
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/10] Fixes for common mistakes w/ for_each_process and task->mm
Date: Sat, 24 Mar 2012 10:26:12 +0000	[thread overview]
Message-ID: <20120324102609.GA28356@lizard> (raw)

Hi all,

This is a reincarnation of the task->mm fixes. Several architectures
were traverse the tasklist in an unsafe manner, plus there are a
few cases of unsafe access to task->mm.

In v2 I decided to introduce a small helper in cpu.c: most arches
duplicate the same [buggy] code snippet, so it's better to fix it
and move the logic into a common function.

Thanks!

-- 
Anton Vorontsov
Email: cbouatmailru@gmail.com

WARNING: multiple messages have this Message-ID (diff)
From: Anton Vorontsov <anton.vorontsov@linaro.org>
To: Andrew Morton <akpm@linux-foundation.org>,
	Oleg Nesterov <oleg@redhat.com>
Cc: Russell King <linux@arm.linux.org.uk>,
	Mike Frysinger <vapier@gentoo.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Richard Weinberger <richard@nod.at>,
	Paul Mundt <lethal@linux-sh.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	John Stultz <john.stultz@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	uclinux-dist-devel@blackfin.uclinux.org,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	user-mode-linux-devel@lists.sourceforge.net, linux-mm@kvack.org
Subject: [PATCH v2 0/10] Fixes for common mistakes w/ for_each_process and task->mm
Date: Sat, 24 Mar 2012 14:26:12 +0400	[thread overview]
Message-ID: <20120324102609.GA28356@lizard> (raw)

Hi all,

This is a reincarnation of the task->mm fixes. Several architectures
were traverse the tasklist in an unsafe manner, plus there are a
few cases of unsafe access to task->mm.

In v2 I decided to introduce a small helper in cpu.c: most arches
duplicate the same [buggy] code snippet, so it's better to fix it
and move the logic into a common function.

Thanks!

-- 
Anton Vorontsov
Email: cbouatmailru@gmail.com

WARNING: multiple messages have this Message-ID (diff)
From: Anton Vorontsov <anton.vorontsov@linaro.org>
To: Andrew Morton <akpm@linux-foundation.org>,
	Oleg Nesterov <oleg@redhat.com>
Cc: Mike Frysinger <vapier@gentoo.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	user-mode-linux-devel@lists.sourceforge.net,
	linux-sh@vger.kernel.org, Richard Weinberger <richard@nod.at>,
	linux-kernel@vger.kernel.org,
	uclinux-dist-devel@blackfin.uclinux.org, linux-mm@kvack.org,
	Paul Mundt <lethal@linux-sh.org>,
	John Stultz <john.stultz@linaro.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Russell King <linux@arm.linux.org.uk>,
	linuxppc-dev@lists.ozlabs.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/10] Fixes for common mistakes w/ for_each_process and task->mm
Date: Sat, 24 Mar 2012 14:26:12 +0400	[thread overview]
Message-ID: <20120324102609.GA28356@lizard> (raw)

Hi all,

This is a reincarnation of the task->mm fixes. Several architectures
were traverse the tasklist in an unsafe manner, plus there are a
few cases of unsafe access to task->mm.

In v2 I decided to introduce a small helper in cpu.c: most arches
duplicate the same [buggy] code snippet, so it's better to fix it
and move the logic into a common function.

Thanks!

-- 
Anton Vorontsov
Email: cbouatmailru@gmail.com

WARNING: multiple messages have this Message-ID (diff)
From: anton.vorontsov@linaro.org (Anton Vorontsov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/10] Fixes for common mistakes w/ for_each_process and task->mm
Date: Sat, 24 Mar 2012 14:26:12 +0400	[thread overview]
Message-ID: <20120324102609.GA28356@lizard> (raw)

Hi all,

This is a reincarnation of the task->mm fixes. Several architectures
were traverse the tasklist in an unsafe manner, plus there are a
few cases of unsafe access to task->mm.

In v2 I decided to introduce a small helper in cpu.c: most arches
duplicate the same [buggy] code snippet, so it's better to fix it
and move the logic into a common function.

Thanks!

-- 
Anton Vorontsov
Email: cbouatmailru at gmail.com

WARNING: multiple messages have this Message-ID (diff)
From: Anton Vorontsov <anton.vorontsov@linaro.org>
To: Andrew Morton <akpm@linux-foundation.org>,
	Oleg Nesterov <oleg@redhat.com>
Cc: Russell King <linux@arm.linux.org.uk>,
	Mike Frysinger <vapier@gentoo.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Richard Weinberger <richard@nod.at>,
	Paul Mundt <lethal@linux-sh.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	John Stultz <john.stultz@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	uclinux-dist-devel@blackfin.uclinux.org,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	user-mode-linux-devel@lists.sourceforge.net, linux-mm@kvack.org
Subject: [PATCH v2 0/10] Fixes for common mistakes w/ for_each_process and task->mm
Date: Sat, 24 Mar 2012 14:26:12 +0400	[thread overview]
Message-ID: <20120324102609.GA28356@lizard> (raw)

Hi all,

This is a reincarnation of the task->mm fixes. Several architectures
were traverse the tasklist in an unsafe manner, plus there are a
few cases of unsafe access to task->mm.

In v2 I decided to introduce a small helper in cpu.c: most arches
duplicate the same [buggy] code snippet, so it's better to fix it
and move the logic into a common function.

Thanks!

-- 
Anton Vorontsov
Email: cbouatmailru@gmail.com

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             reply	other threads:[~2012-03-24 10:26 UTC|newest]

Thread overview: 133+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-24 10:26 Anton Vorontsov [this message]
2012-03-24 10:26 ` [PATCH v2 0/10] Fixes for common mistakes w/ for_each_process and task->mm Anton Vorontsov
2012-03-24 10:26 ` Anton Vorontsov
2012-03-24 10:26 ` Anton Vorontsov
2012-03-24 10:26 ` Anton Vorontsov
2012-03-24 10:27 ` [PATCH 01/10] cpu: Introduce clear_tasks_mm_cpumask() helper Anton Vorontsov
2012-03-24 10:27   ` Anton Vorontsov
2012-03-24 10:27   ` Anton Vorontsov
2012-03-24 10:27   ` Anton Vorontsov
2012-03-24 10:27   ` Anton Vorontsov
2012-03-24 12:43   ` Peter Zijlstra
2012-03-24 12:43     ` Peter Zijlstra
2012-03-24 12:43     ` Peter Zijlstra
2012-03-24 12:43     ` Peter Zijlstra
2012-03-24 12:43     ` Peter Zijlstra
2012-03-24 16:43     ` [PATCH v2.1 " Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-25 17:42       ` Oleg Nesterov
2012-03-25 17:42         ` Oleg Nesterov
2012-03-25 17:42         ` Oleg Nesterov
2012-03-25 17:42         ` Oleg Nesterov
2012-03-25 17:42         ` Oleg Nesterov
2012-03-26  7:59         ` Peter Zijlstra
2012-03-26  7:59           ` Peter Zijlstra
2012-03-26  7:59           ` Peter Zijlstra
2012-03-26  7:59           ` Peter Zijlstra
2012-03-26  7:59           ` Peter Zijlstra
2012-03-26 17:04           ` Oleg Nesterov
2012-03-26 17:04             ` Oleg Nesterov
2012-03-26 17:04             ` Oleg Nesterov
2012-03-26 17:04             ` Oleg Nesterov
2012-03-26 17:04             ` Oleg Nesterov
2012-03-26 17:23             ` Peter Zijlstra
2012-03-26 17:23               ` Peter Zijlstra
2012-03-26 17:23               ` Peter Zijlstra
2012-03-26 17:23               ` Peter Zijlstra
2012-03-26 17:23               ` Peter Zijlstra
2012-03-28  0:01         ` Benjamin Herrenschmidt
2012-03-28  0:01           ` Benjamin Herrenschmidt
2012-03-28  0:01           ` Benjamin Herrenschmidt
2012-03-28  0:01           ` Benjamin Herrenschmidt
2012-03-28  0:01           ` Benjamin Herrenschmidt
2012-03-28  0:01           ` Benjamin Herrenschmidt
2012-03-24 10:28 ` [PATCH 02/10] arm: Use clear_tasks_mm_cpumask() Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28 ` [PATCH 03/10] powerpc: " Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28 ` [PATCH 04/10] sh: " Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:28   ` Anton Vorontsov
2012-03-24 10:29 ` [PATCH 05/10] blackfin: A couple of task->mm handling fixes Anton Vorontsov
2012-03-24 10:29   ` Anton Vorontsov
2012-03-24 10:29   ` Anton Vorontsov
2012-03-24 10:29   ` Anton Vorontsov
2012-03-24 10:29   ` Anton Vorontsov
2012-03-24 10:30 ` [PATCH 06/10] blackfin: Fix possible deadlock in decode_address() Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30 ` [PATCH 07/10] um: Should hold tasklist_lock while traversing processes Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 11:12   ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 12:48   ` Peter Zijlstra
2012-03-24 12:48     ` Peter Zijlstra
2012-03-24 12:48     ` Peter Zijlstra
2012-03-24 12:48     ` Peter Zijlstra
2012-03-24 12:48     ` Peter Zijlstra
2012-03-24 16:43     ` Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-24 16:43       ` Anton Vorontsov
2012-03-24 10:30 ` [PATCH 08/10] um: Fix possible race on task->mm Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 10:30   ` Anton Vorontsov
2012-03-24 11:12   ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 10:31 ` [PATCH 09/10] um: Properly check all process' threads for a live mm Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 11:12   ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 11:12     ` Richard Weinberger
2012-03-24 10:31 ` [PATCH 10/10] oom: Make find_lock_task_mm() sparse-aware Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 10:31   ` Anton Vorontsov
2012-03-24 12:52   ` Peter Zijlstra
2012-03-24 12:52     ` Peter Zijlstra
2012-03-24 12:52     ` Peter Zijlstra
2012-03-24 12:52     ` Peter Zijlstra
2012-03-24 12:52     ` Peter Zijlstra
2012-03-24 16:21     ` Anton Vorontsov
2012-03-24 16:21       ` Anton Vorontsov
2012-03-24 16:21       ` Anton Vorontsov
2012-03-24 16:21       ` Anton Vorontsov
2012-03-24 16:21       ` Anton Vorontsov
2012-03-24 16:43       ` Peter Zijlstra
2012-03-24 16:43         ` Peter Zijlstra
2012-03-24 16:43         ` Peter Zijlstra
2012-03-24 16:43         ` Peter Zijlstra
2012-03-24 16:43         ` Peter Zijlstra
2012-03-28  7:20     ` David Rientjes
2012-03-28  7:20       ` David Rientjes
2012-03-28  7:20       ` David Rientjes
2012-03-28  7:20       ` David Rientjes
2012-03-28  7:20       ` David Rientjes

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