Re: [RFC][PATCH 3/4] use a rwsem for cpucontrol

[Rusty Russell]

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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