diff options
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 6 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 7 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 6 |
3 files changed, 8 insertions, 11 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index a2694ba82874..f6b329bca0c6 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2119,12 +2119,6 @@ int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags) return cpu; } -static void update_avg(u64 *avg, u64 sample) -{ - s64 diff = sample - *avg; - *avg += diff >> 3; -} - void sched_set_stop_task(int cpu, struct task_struct *stop) { struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 }; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 1ea3dddafe69..fb025e946f83 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6080,8 +6080,7 @@ static int select_idle_cpu(struct task_struct *p, struct sched_domain *sd, int t struct cpumask *cpus = this_cpu_cpumask_var_ptr(select_idle_mask); struct sched_domain *this_sd; u64 avg_cost, avg_idle; - u64 time, cost; - s64 delta; + u64 time; int this = smp_processor_id(); int cpu, nr = INT_MAX; @@ -6119,9 +6118,7 @@ static int select_idle_cpu(struct task_struct *p, struct sched_domain *sd, int t } time = cpu_clock(this) - time; - cost = this_sd->avg_scan_cost; - delta = (s64)(time - cost) / 8; - this_sd->avg_scan_cost += delta; + update_avg(&this_sd->avg_scan_cost, time); return cpu; } diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 0f616bf7bce3..cd008147eccb 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -195,6 +195,12 @@ static inline int task_has_dl_policy(struct task_struct *p) #define cap_scale(v, s) ((v)*(s) >> SCHED_CAPACITY_SHIFT) +static inline void update_avg(u64 *avg, u64 sample) +{ + s64 diff = sample - *avg; + *avg += diff / 8; +} + /* * !! For sched_setattr_nocheck() (kernel) only !! * |