Messages in this thread | | | Subject | Re: [RFC][PATCH 3/4] use a rwsem for cpucontrol | From | Rusty Russell <> | Date | Thu, 20 Jan 2005 15:57:29 +1100 |
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On Wed, 2005-01-19 at 22:38 +0100, Dominik Brodowski wrote: > Currently, lock_cpu_hotplug serializes multiple calls to cpufreq->target() > on multiple CPUs even though that's unnecessary. Even further, it > serializes these calls with totally unrelated other parts of the kernel... > some ppc64 event reporting, some cache management, and so on. In my opinion > locking should be done subsystem (and normally data-)specific, and disabling > CPU hotplug should just do that.
Sure.
Rusty. -- A bad analogy is like a leaky screwdriver -- Richard Braakman
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