I'm adding hot-plug support for the above arch and ran into performance issue 
with execution of 
partition_sched_domains ()  - About 0.5 sec per cpu, which is unacceptable with 
the arch supported 4k cpus.
To my limited understanding, on the plat-eznps arch, where each cpu is always 
running a single threaded process in 
isolation mode, the above call is not necessary,
Can you please confirm (or reject) my understanding? If I'm wrong short 
explanation will be appreciated.
If I'm correct, I will be grateful if you can point me to how to skip this call 
in a way acceptable by community.

Thank you.

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