oprofile/x86: make AMD IBS hotplug capable

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>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h
index 551401398fba..89017fa1fd63 100644
--- a/arch/x86/oprofile/op_x86_model.h
+++ b/arch/x86/oprofile/op_x86_model.h
@@ -40,10 +40,10 @@ struct op_x86_model_spec {
         u64             reserved;
         u16             event_mask;
         int             (*init)(struct oprofile_operations *ops);
-        void            (*exit)(void);
         int             (*fill_in_addresses)(struct op_msrs * const msrs);
         void            (*setup_ctrs)(struct op_x86_model_spec const *model,
                                       struct op_msrs const * const msrs);
+        void            (*cpu_down)(void);
         int             (*check_ctrs)(struct pt_regs * const regs,
                                       struct op_msrs const * const msrs);
         void            (*start)(struct op_msrs const * const msrs);