On Tue, 2016-06-21 at 00:48 +0200, Andrea Benelli wrote: > Hello, i was looking at the linux/sched.h (kernel version 4.6.2) > source code and i found this function at line 1174: > > static inline bool cpus_share_cache(int this_cpu, int that_cpu) > { > return true; > } > > I'm not able to understand the utility of a function that just return > a true value. > i've noticed that there are a lot of functions like this (function > that just return a constant). Hi Andrea, That's the case for when CONFIG_SMP isn't defined. What happens when CONFIG_SMP is defined? I suggest having a look through the code with a Linux cross reference: http://lxr.free-electrons.com/ident?v=4.6;i=cpus_share_cache Regards, Nathan _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies