sched: add cfs_rq ops
add the set_task_cfs_rq() abstraction needed by CONFIG_FAIR_GROUP_SCHED. (not activated yet) Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -449,6 +449,18 @@ static inline unsigned long long rq_clock(struct rq *rq)
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#define task_rq(p) cpu_rq(task_cpu(p))
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#define cpu_curr(cpu) (cpu_rq(cpu)->curr)
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#ifdef CONFIG_FAIR_GROUP_SCHED
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/* Change a task's ->cfs_rq if it moves across CPUs */
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static inline void set_task_cfs_rq(struct task_struct *p)
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{
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p->se.cfs_rq = &task_rq(p)->cfs;
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}
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#else
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static inline void set_task_cfs_rq(struct task_struct *p)
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{
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}
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#endif
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#ifndef prepare_arch_switch
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# define prepare_arch_switch(next) do { } while (0)
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#endif
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