Re: [patch V3 02/32] cpu/hotplug: Provide lockdep_assert_cpus_held()
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 GleixnerAcked-by: Paul E. McKenney > --- > 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 */ > >
Re: [patch V3 02/32] cpu/hotplug: Provide lockdep_assert_cpus_held()
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 Acked-by: Paul E. McKenney > --- > 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 */ > >
[patch V3 02/32] cpu/hotplug: Provide lockdep_assert_cpus_held()
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--- 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 */
[patch V3 02/32] cpu/hotplug: Provide lockdep_assert_cpus_held()
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 --- 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 */