On Wed, May 24, 2017 at 10:15:13AM +0200, Thomas Gleixner wrote: > 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 <[email protected]>
Acked-by: Paul E. McKenney <[email protected]> > --- > 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 */ > >
