This API is useful to modify a cpumask indicating some special nohz-type functionality so that the nohz cores are automatically added to that set.
Acked-by: Frederic Weisbecker <[email protected]> Signed-off-by: Chris Metcalf <[email protected]> --- v8: Just include _add_cpus_to() in this patch set [Frederic] Add Frederic's Ack v7: no change here, just in part 2/2. v6: I think we may finally have accessor names that are OK v5: (skipped this patch) v4: update accessor names to make them clearer [PeterZ] v3: no change here, just in part 2/2. v2: put the "...set_cpus" API together with the change to init_sched_domains() so that they can go into the timer tree independently of other changes in my tree. include/linux/tick.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/tick.h b/include/linux/tick.h index ce655084ffe3..8d1754c0f694 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -186,6 +186,12 @@ static inline bool tick_nohz_full_cpu(int cpu) return cpumask_test_cpu(cpu, tick_nohz_full_mask); } +static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask) +{ + if (tick_nohz_full_enabled()) + cpumask_or(mask, mask, tick_nohz_full_mask); +} + static inline void tick_nohz_full_remove_cpus_from(struct cpumask *mask) { if (tick_nohz_full_enabled()) @@ -200,6 +206,7 @@ extern void __tick_nohz_task_switch(struct task_struct *tsk); #else static inline bool tick_nohz_full_enabled(void) { return false; } static inline bool tick_nohz_full_cpu(int cpu) { return false; } +static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask) { } static inline void tick_nohz_full_remove_cpus_from(struct cpumask *mask) { } static inline void __tick_nohz_full_check(void) { } static inline void tick_nohz_full_kick_cpu(int cpu) { } -- 2.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
