drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be...

[karo-tx-linux.git] / include / linux / cpu.h

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 47536197ffddde1a8c28ef942ceefa78c20719e4..e287863ac053d9788756ac79c9271ba562d455b1 100644 (file)
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -43,6 +43,8 @@ extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls);
 
 #ifdef CONFIG_HOTPLUG_CPU
 extern void unregister_cpu(struct cpu *cpu);
+extern ssize_t arch_cpu_probe(const char *, size_t);
+extern ssize_t arch_cpu_release(const char *, size_t);
 #endif
 struct notifier_block;
 
@@ -115,6 +117,19 @@ extern void put_online_cpus(void);
 #define unregister_hotcpu_notifier(nb) unregister_cpu_notifier(nb)
 int cpu_down(unsigned int cpu);
 
+#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
+extern void cpu_hotplug_driver_lock(void);
+extern void cpu_hotplug_driver_unlock(void);
+#else
+static inline void cpu_hotplug_driver_lock(void)
+{
+}
+
+static inline void cpu_hotplug_driver_unlock(void)
+{
+}
+#endif
+
 #else          /* CONFIG_HOTPLUG_CPU */
 
 #define get_online_cpus()      do { } while (0)