diff options
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 911d3a94690e..3111d74a5a85 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1611,8 +1611,27 @@ void update_cpu_capacity_request(int cpu, bool request); static inline void set_cfs_cpu_capacity(int cpu, bool request, unsigned long capacity) { - if (per_cpu(cpu_sched_capacity_reqs, cpu).cfs != capacity) { - per_cpu(cpu_sched_capacity_reqs, cpu).cfs = capacity; + struct sched_capacity_reqs *scr = &per_cpu(cpu_sched_capacity_reqs, cpu); + +#ifdef CONFIG_SCHED_WALT + if (!walt_disabled && sysctl_sched_use_walt_cpu_util) { + int rtdl = scr->rt + scr->dl; + /* + * WALT tracks the utilization of a CPU considering the load + * generated by all the scheduling classes. + * Since the following call to: + * update_cpu_capacity + * is already adding the RT and DL utilizations let's remove + * these contributions from the WALT signal. + */ + if (capacity > rtdl) + capacity -= rtdl; + else + capacity = 0; + } +#endif + if (scr->cfs != capacity) { + scr->cfs = capacity; update_cpu_capacity_request(cpu, request); } } |