Re: [PATCH] lscpu: fix incorrect number of sockets during hotplug

[Anushree Mathur <anushree.mathur@linux.vnet.ibm.com>]

Hi,
I have verified the patch and it works fine!Here is my analysis:

LSCPU O/P on my system without enabling and disabling cpus

Architecture:             ppc64le
   Byte Order:             Little Endian
CPU(s):                   384
   On-line CPU(s) list:    0-383
Model name:               POWER10 (raw), altivec supported
   Model:                  2.0 (pvr 0080 0200)
   Thread(s) per core:     8
   Core(s) per socket:     12
   Socket(s):              4
   Physical sockets:       2
   Physical chips:         2
   Physical cores/chip:    12



Before applying the patch
While repeatedly onlining/offlining cpus on my system , saw that socket 
number is higher. It doesn't happen if i do online/offline of cpu single 
time.

Architecture:             ppc64le
   Byte Order:             Little Endian
CPU(s):                   384
   On-line CPU(s) list:    0-3,5-7,9,11-15,17-383
   Off-line CPU(s) list:   4,8,10,16
Model name:               POWER10 (raw), altivec supported
   Model:                  2.0 (pvr 0080 0200)
   Thread(s) per core:     8
   Core(s) per socket:     9
   Socket(s):              5
   Physical sockets:       2
   Physical chips:         2
   Physical cores/chip:    12



After applying the patch :
Tried the same scenario again to online and offline the cpus in a loop 
continuously and it didn't show any wrong topology:

Architecture:             ppc64le
   Byte Order:             Little Endian
CPU(s):                   384
   On-line CPU(s) list:    0-3,5-7,9,11-15,17-383
   Off-line CPU(s) list:   4,8,10,16
Model name:               POWER10 (raw), altivec supported
   Model:                  2.0 (pvr 0080 0200)
   Thread(s) per core:     8
   Core(s) per socket:     12
   Socket(s):              4
   Physical sockets:       2
   Physical chips:         2
   Physical cores/chip:    12

Tested-by: Anushree Mathur <anushree.mathur@linux.vnet.ibm.com>

Thanks,
Anushree Mathur