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bae663bc63
Current IBS code is not hotplug capable. An offline cpu might not be initialized or deinitialized properly. This patch fixes this by removing on_each_cpu() functions. The IBS init/deinit code is executed in the per-cpu functions model->setup_ctrs() and model->cpu_down() which are also called by hotplug notifiers. model->cpu_down() replaces model->exit() that became obsolete. Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Robert Richter <robert.richter@amd.com>