[patch V3 02/32] cpu/hotplug: Provide lockdep_assert_cpus_held()

[Thomas Gleixner]

Provide a stub function which can be used in places where existing
get_online_cpus() calls are moved to call sites.

This stub is going to be filled by the final conversion of the hotplug
locking mechanism to a percpu rwsem.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 include/linux/cpu.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -103,6 +103,7 @@ extern void cpus_write_lock(void);
 extern void cpus_write_unlock(void);
 extern void cpus_read_lock(void);
 extern void cpus_read_unlock(void);
+static inline void lockdep_assert_cpus_held(void) { }
 extern void cpu_hotplug_disable(void);
 extern void cpu_hotplug_enable(void);
 void clear_tasks_mm_cpumask(int cpu);
@@ -114,6 +115,7 @@ static inline void cpus_write_lock(void)
 static inline void cpus_write_unlock(void) { }
 static inline void cpus_read_lock(void) { }
 static inline void cpus_read_unlock(void) { }
+static inline void lockdep_assert_cpus_held(void) { }
 static inline void cpu_hotplug_disable(void) { }
 static inline void cpu_hotplug_enable(void) { }
 #endif	/* !CONFIG_HOTPLUG_CPU */