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-rw-r--r--kernel/sched.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 0333abdda85..d9ed9274bf0 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -449,6 +449,18 @@ static inline unsigned long long rq_clock(struct rq *rq)
#define task_rq(p) cpu_rq(task_cpu(p))
#define cpu_curr(cpu) (cpu_rq(cpu)->curr)
+#ifdef CONFIG_FAIR_GROUP_SCHED
+/* Change a task's ->cfs_rq if it moves across CPUs */
+static inline void set_task_cfs_rq(struct task_struct *p)
+{
+ p->se.cfs_rq = &task_rq(p)->cfs;
+}
+#else
+static inline void set_task_cfs_rq(struct task_struct *p)
+{
+}
+#endif
+
#ifndef prepare_arch_switch
# define prepare_arch_switch(next) do { } while (0)
#endif