mirror of https://gitee.com/openkylin/linux.git
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
#ifdef CONFIG_SMP
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int __update_load_avg_blocked_se(u64 now, int cpu, struct sched_entity *se);
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int __update_load_avg_se(u64 now, int cpu, struct cfs_rq *cfs_rq, struct sched_entity *se);
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int __update_load_avg_cfs_rq(u64 now, int cpu, struct cfs_rq *cfs_rq);
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int update_rt_rq_load_avg(u64 now, struct rq *rq, int running);
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int update_dl_rq_load_avg(u64 now, struct rq *rq, int running);
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#ifdef CONFIG_HAVE_SCHED_AVG_IRQ
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int update_irq_load_avg(struct rq *rq, u64 running);
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#else
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static inline int
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update_irq_load_avg(struct rq *rq, u64 running)
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{
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return 0;
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}
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#endif
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/*
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* When a task is dequeued, its estimated utilization should not be update if
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* its util_avg has not been updated at least once.
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* This flag is used to synchronize util_avg updates with util_est updates.
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* We map this information into the LSB bit of the utilization saved at
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* dequeue time (i.e. util_est.dequeued).
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*/
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#define UTIL_AVG_UNCHANGED 0x1
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static inline void cfs_se_util_change(struct sched_avg *avg)
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{
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unsigned int enqueued;
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if (!sched_feat(UTIL_EST))
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return;
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/* Avoid store if the flag has been already set */
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enqueued = avg->util_est.enqueued;
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if (!(enqueued & UTIL_AVG_UNCHANGED))
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return;
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/* Reset flag to report util_avg has been updated */
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enqueued &= ~UTIL_AVG_UNCHANGED;
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WRITE_ONCE(avg->util_est.enqueued, enqueued);
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}
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#else
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static inline int
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update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
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{
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return 0;
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}
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static inline int
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update_rt_rq_load_avg(u64 now, struct rq *rq, int running)
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{
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return 0;
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}
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static inline int
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update_dl_rq_load_avg(u64 now, struct rq *rq, int running)
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{
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return 0;
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}
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static inline int
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update_irq_load_avg(struct rq *rq, u64 running)
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{
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return 0;
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}
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#endif
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