linux-kernel - [PATCH 0/8] CPU-Hotplug: Fix CPU-Hotplug <--> cpufreq locking dependency

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Message-ID: <20080429125659.GA23562@in.ibm.com>
Date:	Tue, 29 Apr 2008 18:26:59 +0530
From:	Gautham R Shenoy <ego@...ibm.com>
To:	linux-kernel@...r.kernel.org,
	Zdenek Kabelac <zdenek.kabelac@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Oleg Nesterov <oleg@...sign.ru>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>
Subject: [PATCH 0/8] CPU-Hotplug: Fix CPU-Hotplug <--> cpufreq locking
	dependency

Hello everyone,

A couple of months ago Zdenek Kabelac had reported a Circular locking
dependency in resume, which was related to the locking dependency
between the cpufreq and CPU-Hotplug subsystems.

http://lkml.org/lkml/2008/2/26/479

This patchset aggregates the various patches that have been posted in
the recent past, to solve this problem.

There are a few more TODO items in CPU-Hotplug , unrelated to
this problem, that cropped up in the various discussions.
They will be posted in a seperate thread.

The patchstack has been lightly tested on a 4-way x86 machine with
CPU-Hotplug running in parallel with kernbench and changing cpufreq
governors simultaneously.

Awaiting your feedback,
gautham
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