diff options
Diffstat (limited to 'kernel/sched/fair.c')
| -rw-r--r-- | kernel/sched/fair.c | 71 |
1 files changed, 40 insertions, 31 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index dea138964b91..72b081b9a249 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4271,8 +4271,9 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, list_for_each_entry_rcu(cfs_rq, &cfs_b->throttled_cfs_rq, throttled_list) { struct rq *rq = rq_of(cfs_rq); + struct rq_flags rf; - raw_spin_lock(&rq->lock); + rq_lock(rq, &rf); if (!cfs_rq_throttled(cfs_rq)) goto next; @@ -4289,7 +4290,7 @@ static u64 distribute_cfs_runtime(struct cfs_bandwidth *cfs_b, unthrottle_cfs_rq(cfs_rq); next: - raw_spin_unlock(&rq->lock); + rq_unlock(rq, &rf); if (!remaining) break; @@ -5097,15 +5098,16 @@ void cpu_load_update_nohz_stop(void) unsigned long curr_jiffies = READ_ONCE(jiffies); struct rq *this_rq = this_rq(); unsigned long load; + struct rq_flags rf; if (curr_jiffies == this_rq->last_load_update_tick) return; load = weighted_cpuload(cpu_of(this_rq)); - raw_spin_lock(&this_rq->lock); + rq_lock(this_rq, &rf); update_rq_clock(this_rq); cpu_load_update_nohz(this_rq, curr_jiffies, load); - raw_spin_unlock(&this_rq->lock); + rq_unlock(this_rq, &rf); } #else /* !CONFIG_NO_HZ_COMMON */ static inline void cpu_load_update_nohz(struct rq *this_rq, @@ -6913,9 +6915,11 @@ static void attach_task(struct rq *rq, struct task_struct *p) */ static void attach_one_task(struct rq *rq, struct task_struct *p) { - raw_spin_lock(&rq->lock); + struct rq_flags rf; + + rq_lock(rq, &rf); attach_task(rq, p); - raw_spin_unlock(&rq->lock); + rq_unlock(rq, &rf); } /* @@ -6926,8 +6930,9 @@ static void attach_tasks(struct lb_env *env) { struct list_head *tasks = &env->tasks; struct task_struct *p; + struct rq_flags rf; - raw_spin_lock(&env->dst_rq->lock); + rq_lock(env->dst_rq, &rf); while (!list_empty(tasks)) { p = list_first_entry(tasks, struct task_struct, se.group_node); @@ -6936,7 +6941,7 @@ static void attach_tasks(struct lb_env *env) attach_task(env->dst_rq, p); } - raw_spin_unlock(&env->dst_rq->lock); + rq_unlock(env->dst_rq, &rf); } #ifdef CONFIG_FAIR_GROUP_SCHED @@ -6944,9 +6949,9 @@ static void update_blocked_averages(int cpu) { struct rq *rq = cpu_rq(cpu); struct cfs_rq *cfs_rq; - unsigned long flags; + struct rq_flags rf; - raw_spin_lock_irqsave(&rq->lock, flags); + rq_lock_irqsave(rq, &rf); update_rq_clock(rq); /* @@ -6965,7 +6970,7 @@ static void update_blocked_averages(int cpu) if (cfs_rq->tg->se[cpu]) update_load_avg(cfs_rq->tg->se[cpu], 0); } - raw_spin_unlock_irqrestore(&rq->lock, flags); + rq_unlock_irqrestore(rq, &rf); } /* @@ -7019,12 +7024,12 @@ static inline void update_blocked_averages(int cpu) { struct rq *rq = cpu_rq(cpu); struct cfs_rq *cfs_rq = &rq->cfs; - unsigned long flags; + struct rq_flags rf; - raw_spin_lock_irqsave(&rq->lock, flags); + rq_lock_irqsave(rq, &rf); update_rq_clock(rq); update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq, true); - raw_spin_unlock_irqrestore(&rq->lock, flags); + rq_unlock_irqrestore(rq, &rf); } static unsigned long task_h_load(struct task_struct *p) @@ -8042,7 +8047,7 @@ static int load_balance(int this_cpu, struct rq *this_rq, struct sched_domain *sd_parent = sd->parent; struct sched_group *group; struct rq *busiest; - unsigned long flags; + struct rq_flags rf; struct cpumask *cpus = this_cpu_cpumask_var_ptr(load_balance_mask); struct lb_env env = { @@ -8105,7 +8110,7 @@ redo: env.loop_max = min(sysctl_sched_nr_migrate, busiest->nr_running); more_balance: - raw_spin_lock_irqsave(&busiest->lock, flags); + rq_lock_irqsave(busiest, &rf); update_rq_clock(busiest); /* @@ -8122,14 +8127,14 @@ more_balance: * See task_rq_lock() family for the details. */ - raw_spin_unlock(&busiest->lock); + rq_unlock(busiest, &rf); if (cur_ld_moved) { attach_tasks(&env); ld_moved += cur_ld_moved; } - local_irq_restore(flags); + local_irq_restore(rf.flags); if (env.flags & LBF_NEED_BREAK) { env.flags &= ~LBF_NEED_BREAK; @@ -8207,6 +8212,8 @@ more_balance: sd->nr_balance_failed++; if (need_active_balance(&env)) { + unsigned long flags; + raw_spin_lock_irqsave(&busiest->lock, flags); /* don't kick the active_load_balance_cpu_stop, @@ -8444,8 +8451,9 @@ static int active_load_balance_cpu_stop(void *data) struct rq *target_rq = cpu_rq(target_cpu); struct sched_domain *sd; struct task_struct *p = NULL; + struct rq_flags rf; - raw_spin_lock_irq(&busiest_rq->lock); + rq_lock_irq(busiest_rq, &rf); /* make sure the requested cpu hasn't gone down in the meantime */ if (unlikely(busiest_cpu != smp_processor_id() || @@ -8496,7 +8504,7 @@ static int active_load_balance_cpu_stop(void *data) rcu_read_unlock(); out_unlock: busiest_rq->active_balance = 0; - raw_spin_unlock(&busiest_rq->lock); + rq_unlock(busiest_rq, &rf); if (p) attach_one_task(target_rq, p); @@ -8794,10 +8802,13 @@ static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) * do the balance. */ if (time_after_eq(jiffies, rq->next_balance)) { - raw_spin_lock_irq(&rq->lock); + struct rq_flags rf; + + rq_lock_irq(rq, &rf); update_rq_clock(rq); cpu_load_update_idle(rq); - raw_spin_unlock_irq(&rq->lock); + rq_unlock_irq(rq, &rf); + rebalance_domains(rq, CPU_IDLE); } @@ -8988,8 +8999,9 @@ static void task_fork_fair(struct task_struct *p) struct cfs_rq *cfs_rq; struct sched_entity *se = &p->se, *curr; struct rq *rq = this_rq(); + struct rq_flags rf; - raw_spin_lock(&rq->lock); + rq_lock(rq, &rf); update_rq_clock(rq); cfs_rq = task_cfs_rq(current); @@ -9010,7 +9022,7 @@ static void task_fork_fair(struct task_struct *p) } se->vruntime -= cfs_rq->min_vruntime; - raw_spin_unlock(&rq->lock); + rq_unlock(rq, &rf); } /* @@ -9372,7 +9384,6 @@ static DEFINE_MUTEX(shares_mutex); int sched_group_set_shares(struct task_group *tg, unsigned long shares) { int i; - unsigned long flags; /* * We can't change the weight of the root cgroup. @@ -9389,19 +9400,17 @@ int sched_group_set_shares(struct task_group *tg, unsigned long shares) tg->shares = shares; for_each_possible_cpu(i) { struct rq *rq = cpu_rq(i); - struct sched_entity *se; + struct sched_entity *se = tg->se[i]; + struct rq_flags rf; - se = tg->se[i]; /* Propagate contribution to hierarchy */ - raw_spin_lock_irqsave(&rq->lock, flags); - - /* Possible calls to update_curr() need rq clock */ + rq_lock_irqsave(rq, &rf); update_rq_clock(rq); for_each_sched_entity(se) { update_load_avg(se, UPDATE_TG); update_cfs_shares(se); } - raw_spin_unlock_irqrestore(&rq->lock, flags); + rq_unlock_irqrestore(rq, &rf); } done: |