x86/topology: Use total_cpus not nr_cpu_ids for logical packages
authorThomas Gleixner <tglx@linutronix.de>
Fri, 18 Mar 2016 16:20:30 +0000 (17:20 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Sat, 19 Mar 2016 09:26:40 +0000 (10:26 +0100)
commit3e8db2246b434c6b18a6a9f09904038bddcf76c7
tree1366cdf25c51ef7c276872152a5077a982ccbf72
parent63d1e995be455ae9196270eb4b789de21afd42ed
x86/topology: Use total_cpus not nr_cpu_ids for logical packages

nr_cpu_ids can be limited on the command line via nr_cpus=. That can break the
logical package management because it results in a smaller number of packages,
but the cpus to online are occupying the full package space as the hyper
threads are enumerated after the physical cores typically.

total_cpus is the real possible cpu space not limited by nr_cpus command line
and gives us the proper number of packages.

Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Fixes: 1f12e32f4cd5 ("x86/topology: Create logical package id")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Xiong Zhou <jencce.kernel@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andreas Herrmann <aherrmann@suse.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1603181254330.3978@nanos
arch/x86/kernel/smpboot.c