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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-17 20:49:42 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-17 20:49:42 +0300
commitc2ea72fd869145130969d6b07273c479cf2a22f5 (patch)
treeda226ab4151c20ae259249f8fc301744eeb461c6 /include
parenta706797febf4ff60ad61f855a01707be9fc3cf4c (diff)
parent5473e0cc37c03c576adbda7591a6cc8e37c1bb7f (diff)
downloadlinux-c2ea72fd869145130969d6b07273c479cf2a22f5.tar.xz
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar: "A migrate_tasks() locking fix, and a late-coming nohz change plus a nohz debug check" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: 'Annotate' migrate_tasks() nohz: Assert existing housekeepers when nohz full enabled nohz: Affine unpinned timers to housekeepers
Diffstat (limited to 'include')
-rw-r--r--include/linux/tick.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 48d901f83f92..e312219ff823 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -147,11 +147,20 @@ static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask)
cpumask_or(mask, mask, tick_nohz_full_mask);
}
+static inline int housekeeping_any_cpu(void)
+{
+ return cpumask_any_and(housekeeping_mask, cpu_online_mask);
+}
+
extern void tick_nohz_full_kick(void);
extern void tick_nohz_full_kick_cpu(int cpu);
extern void tick_nohz_full_kick_all(void);
extern void __tick_nohz_task_switch(void);
#else
+static inline int housekeeping_any_cpu(void)
+{
+ return smp_processor_id();
+}
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) { }