diff options
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 1 | ||||
| -rw-r--r-- | kernel/sched/core.c | 2 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 10 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 18 |
4 files changed, 4 insertions, 27 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index bb884c14b2f6..3f390cc5f77e 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5807,6 +5807,7 @@ but is useful for debugging and performance tuning. sched_thermal_decay_shift= + [Deprecated] [KNL, SMP] Set a decay shift for scheduler thermal pressure signal. Thermal pressure signal follows the default decay period of other scheduler pelt diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 67a8302c3131..1a914388144a 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5680,7 +5680,7 @@ void sched_tick(void) update_rq_clock(rq); hw_pressure = arch_scale_hw_pressure(cpu_of(rq)); - update_hw_load_avg(rq_clock_hw(rq), rq, hw_pressure); + update_hw_load_avg(rq_clock_task(rq), rq, hw_pressure); curr->sched_class->task_tick(rq, curr, 0); if (sched_feat(LATENCY_WARN)) resched_latency = cpu_resched_latency(rq); diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index eef39ae3efcf..9eb63573110c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -78,15 +78,9 @@ static unsigned int normalized_sysctl_sched_base_slice = 750000ULL; const_debug unsigned int sysctl_sched_migration_cost = 500000UL; -int sched_hw_decay_shift; static int __init setup_sched_thermal_decay_shift(char *str) { - int _shift = 0; - - if (kstrtoint(str, 0, &_shift)) - pr_warn("Unable to set scheduler thermal pressure decay shift parameter\n"); - - sched_hw_decay_shift = clamp(_shift, 0, 10); + pr_warn("Ignoring the deprecated sched_thermal_decay_shift= option\n"); return 1; } __setup("sched_thermal_decay_shift=", setup_sched_thermal_decay_shift); @@ -9367,7 +9361,7 @@ static bool __update_blocked_others(struct rq *rq, bool *done) decayed = update_rt_rq_load_avg(now, rq, curr_class == &rt_sched_class) | update_dl_rq_load_avg(now, rq, curr_class == &dl_sched_class) | - update_hw_load_avg(rq_clock_hw(rq), rq, hw_pressure) | + update_hw_load_avg(now, rq, hw_pressure) | update_irq_load_avg(rq, 0); if (others_have_blocked(rq)) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 993edb02fb0d..cb3792c04eea 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1550,24 +1550,6 @@ static inline u64 rq_clock_task(struct rq *rq) return rq->clock_task; } -/** - * By default the decay is the default pelt decay period. - * The decay shift can change the decay period in - * multiples of 32. - * Decay shift Decay period(ms) - * 0 32 - * 1 64 - * 2 128 - * 3 256 - * 4 512 - */ -extern int sched_hw_decay_shift; - -static inline u64 rq_clock_hw(struct rq *rq) -{ - return rq_clock_task(rq) >> sched_hw_decay_shift; -} - static inline void rq_clock_skip_update(struct rq *rq) { lockdep_assert_rq_held(rq); |