linux-kernel - [PATCH 0/4] watchdog: address various races (CPU hotplug, timer expiry)

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Message-Id: <1446564061-3379-1-git-send-email-uobergfe@redhat.com>
Date:	Tue,  3 Nov 2015 16:20:57 +0100
From:	Ulrich Obergfell <uobergfe@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, dzickus@...hat.com, atomlin@...hat.com,
	uobergfe@...hat.com
Subject: [PATCH 0/4] watchdog: address various races (CPU hotplug, timer expiry)

This patch set addresses various races in relation to CPU hotplug
and a race in relation to watchdog timer expiry. I discovered the
corner cases during code inspection. I haven't seen any of these
issues occur in practice.

Ulrich Obergfell (4):
  watchdog: avoid race between lockup detector suspend/resume and CPU
    hotplug
  watchdog: avoid races between /proc handlers and CPU hotplug
  watchdog: remove {get|put}_online_cpus() from
    watchdog_{park|unpark}_threads()
  watchdog: fix race between proc_watchdog_thresh() and
    watchdog_timer_fn()

 kernel/watchdog.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

-- 
1.7.11.7

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