On Thursday, February 25, 2016 10:21:50 AM Peter Zijlstra wrote: > On Thu, Feb 25, 2016 at 04:55:57AM +0100, Rafael J. Wysocki wrote: > > Well, I'm not familiar with static keys and how they work, so you'll need to > > explain this part to me. > > See include/linux/jump_label.h, it has lots of text on them. There is > also Documentation/static-keys.txt
Thanks for the pointers! It looks like the author of the $subject patch hasn't looked at the latter document lately. In any case, IMO this might be used to hide the cpufreq_update_util() call sites from the scheduler code in case no one has set anything via cpufreq_set_update_util_data() for any CPUs. That essentially is when things like the performance governor are in use, so may be worth doing, but that's your judgement call mostly. :-) Thanks, Rafael
