ARM: idle sleep time for hotplugged cpu

Russell King - ARM Linux linux at arm.linux.org.uk
Mon Nov 5 04:15:33 EST 2012


On Mon, Nov 05, 2012 at 09:23:38AM +0530, Taniya Das wrote:
> I was looking at the arch/arm/process.c:cpu_die, I was wondering why we
> do not exit from NOHZ for a hotplugged/offline cpu?

Offlined CPUs are not supposed to just 'return' from cpu_die(), and
in actual fact they can't.



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