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SubjectRe: [RFC][PATCH 0/4] Redesign cpu_hotplug locking.
On Sun, 27 Aug 2006 16:36:58 +0530
Dipankar Sarma <dipankar@in.ibm.com> wrote:

> > Did you look? workqueue_mutex is used to protect per-cpu workqueue
> > resources. The lock is taken prior to modification of per-cpu resources
> > and is released after their modification. Very very simple.
>
> I did and there is no lock named workqueue_mutex. workqueue_cpu_callback()
> is farily simple and doesn't have the issues in cpufreq that
> we are talking about (lock_cpu_hotplug() in cpu callback path).

http://www.kernel.org/git/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9b41ea7289a589993d3daabc61f999b4147872c4
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