Re: [PATCH 1/5] x86/smpboot: Add the missing description of possible_cpus

From: Peter Zijlstra
Date: Tue Mar 20 2018 - 08:37:42 EST


On Tue, Mar 20, 2018 at 07:04:28PM +0800, Dou Liyang wrote:

> + possible_cpus= [s390,x86_64] Use this to set hotpluggable cpus.
> + This option sets possible_cpus bits in cpu_possible_map.
> + Thus keeping the numbers of bits set constant even if
> + the machine gets rebooted.

That description, esp. the last sentence, doesn't make any kind of sense
to me. What?