]> git.karo-electronics.de Git - mv-sheeva.git/blobdiff - kernel/sched.c
iwlwifi: iwl_priv - clean up in types of members
[mv-sheeva.git] / kernel / sched.c
index b02e4fc256459591bcd7b77f2a5dac527bda98c2..d1ad69b270ca7abc418871ce3160cc4bfbc04135 100644 (file)
@@ -301,7 +301,7 @@ struct cfs_rq {
        /* 'curr' points to currently running entity on this cfs_rq.
         * It is set to NULL otherwise (i.e when none are currently running).
         */
-       struct sched_entity *curr;
+       struct sched_entity *curr, *next;
 
        unsigned long nr_spread_over;
 
@@ -1084,7 +1084,7 @@ calc_delta_mine(unsigned long delta_exec, unsigned long weight,
        u64 tmp;
 
        if (unlikely(!lw->inv_weight))
-               lw->inv_weight = (WMULT_CONST - lw->weight/2) / lw->weight + 1;
+               lw->inv_weight = (WMULT_CONST-lw->weight/2) / (lw->weight+1);
 
        tmp = (u64)delta_exec * weight;
        /*
@@ -1108,11 +1108,13 @@ calc_delta_fair(unsigned long delta_exec, struct load_weight *lw)
 static inline void update_load_add(struct load_weight *lw, unsigned long inc)
 {
        lw->weight += inc;
+       lw->inv_weight = 0;
 }
 
 static inline void update_load_sub(struct load_weight *lw, unsigned long dec)
 {
        lw->weight -= dec;
+       lw->inv_weight = 0;
 }
 
 /*
@@ -4268,11 +4270,10 @@ void rt_mutex_setprio(struct task_struct *p, int prio)
        oldprio = p->prio;
        on_rq = p->se.on_rq;
        running = task_current(rq, p);
-       if (on_rq) {
+       if (on_rq)
                dequeue_task(rq, p, 0);
-               if (running)
-                       p->sched_class->put_prev_task(rq, p);
-       }
+       if (running)
+               p->sched_class->put_prev_task(rq, p);
 
        if (rt_prio(prio))
                p->sched_class = &rt_sched_class;
@@ -4281,10 +4282,9 @@ void rt_mutex_setprio(struct task_struct *p, int prio)
 
        p->prio = prio;
 
+       if (running)
+               p->sched_class->set_curr_task(rq);
        if (on_rq) {
-               if (running)
-                       p->sched_class->set_curr_task(rq);
-
                enqueue_task(rq, p, 0);
 
                check_class_changed(rq, p, prev_class, oldprio, running);
@@ -4581,19 +4581,17 @@ recheck:
        update_rq_clock(rq);
        on_rq = p->se.on_rq;
        running = task_current(rq, p);
-       if (on_rq) {
+       if (on_rq)
                deactivate_task(rq, p, 0);
-               if (running)
-                       p->sched_class->put_prev_task(rq, p);
-       }
+       if (running)
+               p->sched_class->put_prev_task(rq, p);
 
        oldprio = p->prio;
        __setscheduler(rq, p, policy, param->sched_priority);
 
+       if (running)
+               p->sched_class->set_curr_task(rq);
        if (on_rq) {
-               if (running)
-                       p->sched_class->set_curr_task(rq);
-
                activate_task(rq, p, 0);
 
                check_class_changed(rq, p, prev_class, oldprio, running);
@@ -5813,13 +5811,6 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
                /* Must be high prio: stop_machine expects to yield to it. */
                rq = task_rq_lock(p, &flags);
                __setscheduler(rq, p, SCHED_FIFO, MAX_RT_PRIO-1);
-
-               /* Update our root-domain */
-               if (rq->rd) {
-                       BUG_ON(!cpu_isset(cpu, rq->rd->span));
-                       cpu_set(cpu, rq->rd->online);
-               }
-
                task_rq_unlock(rq, &flags);
                cpu_rq(cpu)->migration_thread = p;
                break;
@@ -5828,6 +5819,15 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
        case CPU_ONLINE_FROZEN:
                /* Strictly unnecessary, as first user will wake it. */
                wake_up_process(cpu_rq(cpu)->migration_thread);
+
+               /* Update our root-domain */
+               rq = cpu_rq(cpu);
+               spin_lock_irqsave(&rq->lock, flags);
+               if (rq->rd) {
+                       BUG_ON(!cpu_isset(cpu, rq->rd->span));
+                       cpu_set(cpu, rq->rd->online);
+               }
+               spin_unlock_irqrestore(&rq->lock, flags);
                break;
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -5879,7 +5879,8 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
                spin_unlock_irq(&rq->lock);
                break;
 
-       case CPU_DOWN_PREPARE:
+       case CPU_DYING:
+       case CPU_DYING_FROZEN:
                /* Update our root-domain */
                rq = cpu_rq(cpu);
                spin_lock_irqsave(&rq->lock, flags);
@@ -6103,6 +6104,8 @@ static void rq_attach_root(struct rq *rq, struct root_domain *rd)
        rq->rd = rd;
 
        cpu_set(rq->cpu, rd->span);
+       if (cpu_isset(rq->cpu, cpu_online_map))
+               cpu_set(rq->cpu, rd->online);
 
        for (class = sched_class_highest; class; class = class->next) {
                if (class->join_domain)
@@ -7613,11 +7616,10 @@ void sched_move_task(struct task_struct *tsk)
        running = task_current(rq, tsk);
        on_rq = tsk->se.on_rq;
 
-       if (on_rq) {
+       if (on_rq)
                dequeue_task(rq, tsk, 0);
-               if (unlikely(running))
-                       tsk->sched_class->put_prev_task(rq, tsk);
-       }
+       if (unlikely(running))
+               tsk->sched_class->put_prev_task(rq, tsk);
 
        set_task_rq(tsk, task_cpu(tsk));
 
@@ -7626,11 +7628,10 @@ void sched_move_task(struct task_struct *tsk)
                tsk->sched_class->moved_group(tsk);
 #endif
 
-       if (on_rq) {
-               if (unlikely(running))
-                       tsk->sched_class->set_curr_task(rq);
+       if (unlikely(running))
+               tsk->sched_class->set_curr_task(rq);
+       if (on_rq)
                enqueue_task(rq, tsk, 0);
-       }
 
        task_rq_unlock(rq, &flags);
 }