On Fri, 17 Jul 2015 12:36:34 -0700, Guenter Roeck wrote: > Hi Jean, > > On 07/17/2015 12:11 PM, Jean Delvare wrote: > > > > > We could just drop NUM_REAL_CORES and use CONFIG_NR_CPUS instead, I > > would be fine with that. This lets people worried about memory > > consumption control it. > > Unfortunately this won't work because the CPU ID is non-linear; > an 8-core system may have a CPU ID larger than 7.
Oh right, I forgot about that. Brilliant hardware/firmware engineers... Well that does not prevent us from using CONFIG_NR_CPUS, "just" the code would need to be modified to remove the assumption that the array index matches the logical CPU ID. BTW I wonder how the rest of the kernel handles the situation. CONFIG_NR_CPUS is used where relevant so there certainly _is_ a linear numbering which is independent from the CPU ID. -- Jean Delvare SUSE L3 Support -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
