These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / include / linux / smpboot.h

diff --git a/kernel/include/linux/smpboot.h b/kernel/include/linux/smpboot.h
index d600afb..12910cf 100644 (file)
--- a/kernel/include/linux/smpboot.h
+++ b/kernel/include/linux/smpboot.h
@@ -24,9 +24,8 @@ struct smpboot_thread_data;
  *                     parked (cpu offline)
  * @unpark:            Optional unpark function, called when the thread is
  *                     unparked (cpu online)
- * @pre_unpark:                Optional unpark function, called before the thread is
- *                     unparked (cpu online). This is not guaranteed to be
- *                     called on the target cpu of the thread. Careful!
+ * @cpumask:           Internal state.  To update which threads are unparked,
+ *                     call smpboot_update_cpumask_percpu_thread().
  * @selfparking:       Thread is not parked by the park function.
  * @thread_comm:       The base name of the thread
  */
@@ -40,12 +39,23 @@ struct smp_hotplug_thread {
        void                            (*cleanup)(unsigned int cpu, bool online);
        void                            (*park)(unsigned int cpu);
        void                            (*unpark)(unsigned int cpu);
-       void                            (*pre_unpark)(unsigned int cpu);
+       cpumask_var_t                   cpumask;
        bool                            selfparking;
        const char                      *thread_comm;
 };
 
-int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread);
+int smpboot_register_percpu_thread_cpumask(struct smp_hotplug_thread *plug_thread,
+                                          const struct cpumask *cpumask);
+
+static inline int
+smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
+{
+       return smpboot_register_percpu_thread_cpumask(plug_thread,
+                                                     cpu_possible_mask);
+}
+
 void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread);
+int smpboot_update_cpumask_percpu_thread(struct smp_hotplug_thread *plug_thread,
+                                        const struct cpumask *);
 
 #endif