ARM: idle sleep time for hotplugged cpu

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.