diff options
| author | Chris Metcalf <[email protected]> | 2015-05-06 18:04:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-05-07 12:02:51 +0200 |
| commit | 83dedea8a07fb4bf91863764b15c1c4ec00330f9 (patch) | |
| tree | 89db8147225d8091a8c3b25c543779e8cb0c199d | |
| parent | fafe870f31212a72f3c2d74e7b90e4ef39e83ee1 (diff) | |
nohz: Add tick_nohz_full_add_cpus_to() API
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.
Signed-off-by: Chris Metcalf <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dave Jones <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | include/linux/tick.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h index f8492da57ad3..4191b5623a28 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) { } |