From: Chris Metcalf <cmetc...@ezchip.com> 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: Peter Zijlstra (Intel) <pet...@infradead.org> Signed-off-by: Chris Metcalf <cmetc...@ezchip.com> Cc: Peter Zijlstra (Intel) <pet...@infradead.org> Cc: Paul E. McKenney <paul...@linux.vnet.ibm.com> Cc: Rafael J. Wysocki <rafael.j.wyso...@intel.com> Cc: Martin Schwidefsky <schwidef...@de.ibm.com> Cc: Ingo Molnar <mi...@redhat.com> Link: http://lkml.kernel.org/r/1429024675-18938-1-git-send-email-cmetc...@ezchip.com Signed-off-by: Frederic Weisbecker <fweis...@gmail.com> --- include/linux/tick.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/tick.h b/include/linux/tick.h index f8492da5..4191b56 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -134,6 +134,12 @@ 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); +} + extern void __tick_nohz_full_check(void); extern void tick_nohz_full_kick(void); extern void tick_nohz_full_kick_cpu(int cpu); @@ -142,6 +148,7 @@ 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_check(void) { } static inline void tick_nohz_full_kick_cpu(int cpu) { } static inline void tick_nohz_full_kick(void) { } -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
