sched/core: Introduce 'struct sched_domain_shared'

[cascardo/linux.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index b99fcd1..8a878b9 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1067,6 +1067,10 @@ extern int sched_domain_level_max;
 
 struct sched_group;
 
+struct sched_domain_shared {
+       atomic_t        ref;
+};
+
 struct sched_domain {
        /* These fields must be setup */
        struct sched_domain *parent;    /* top domain must be null terminated */
@@ -1135,6 +1139,7 @@ struct sched_domain {
                void *private;          /* used during construction */
                struct rcu_head rcu;    /* used during destruction */
        };
+       struct sched_domain_shared *shared;
 
        unsigned int span_weight;
        /*
@@ -1168,6 +1173,7 @@ typedef int (*sched_domain_flags_f)(void);
 
 struct sd_data {
        struct sched_domain **__percpu sd;
+       struct sched_domain_shared **__percpu sds;
        struct sched_group **__percpu sg;
        struct sched_group_capacity **__percpu sgc;
 };