Thread (155 messages) 155 messages, 12 authors, 2016-03-18

Re: [PATCH v2 1/10] cpufreq: Reduce cpufreq_update_util() overhead a bit

From: Peter Zijlstra <peterz@infradead.org>
Date: 2016-03-09 15:29:51
Also in: linux-acpi, lkml

On Wed, Mar 09, 2016 at 03:17:48PM +0100, Rafael J. Wysocki wrote:
quoted
That said, how about the below? It avoids a function call.
That is fine by me.

What about taking it a bit further, though, and moving the definition
of cpufreq_update_util_data to somewhere under kernel/sched/ (like
kernel/sched/cpufreq.c maybe)?

Then, the whole static inline void cpufreq_update_util() definition
can go into kernel/sched/sched.h (it doesn't have to be visible
anywhere beyond kernel/sched/) and the only thing that needs to be
exported to cpufreq will be a helper (or two), to set/clear the
cpufreq_update_util_data pointers.

I'll try to cut a patch doing that later today for illustration.
Right, that's a blend with your second patch. Sure.
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