mm: compaction: add /proc trigger for memory compaction
[linux-2.6.git] / kernel / sched_debug.c
index 6988cf0..87a330a 100644 (file)
@@ -70,16 +70,16 @@ static void print_cfs_group_stats(struct seq_file *m, int cpu,
        PN(se->vruntime);
        PN(se->sum_exec_runtime);
 #ifdef CONFIG_SCHEDSTATS
-       PN(se->wait_start);
-       PN(se->sleep_start);
-       PN(se->block_start);
-       PN(se->sleep_max);
-       PN(se->block_max);
-       PN(se->exec_max);
-       PN(se->slice_max);
-       PN(se->wait_max);
-       PN(se->wait_sum);
-       P(se->wait_count);
+       PN(se->statistics.wait_start);
+       PN(se->statistics.sleep_start);
+       PN(se->statistics.block_start);
+       PN(se->statistics.sleep_max);
+       PN(se->statistics.block_max);
+       PN(se->statistics.exec_max);
+       PN(se->statistics.slice_max);
+       PN(se->statistics.wait_max);
+       PN(se->statistics.wait_sum);
+       P(se->statistics.wait_count);
 #endif
        P(se->load.weight);
 #undef PN
@@ -104,7 +104,7 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
        SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
                SPLIT_NS(p->se.vruntime),
                SPLIT_NS(p->se.sum_exec_runtime),
-               SPLIT_NS(p->se.sum_sleep_runtime));
+               SPLIT_NS(p->se.statistics.sum_sleep_runtime));
 #else
        SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld",
                0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L);
@@ -114,7 +114,9 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
        {
                char path[64];
 
+               rcu_read_lock();
                cgroup_path(task_group(p)->css.cgroup, path, sizeof(path));
+               rcu_read_unlock();
                SEQ_printf(m, " %s", path);
        }
 #endif
@@ -173,18 +175,13 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
        task_group_path(tg, path, sizeof(path));
 
        SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, path);
-#elif defined(CONFIG_USER_SCHED) && defined(CONFIG_FAIR_GROUP_SCHED)
-       {
-               uid_t uid = cfs_rq->tg->uid;
-               SEQ_printf(m, "\ncfs_rq[%d] for UID: %u\n", cpu, uid);
-       }
 #else
        SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
 #endif
        SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "exec_clock",
                        SPLIT_NS(cfs_rq->exec_clock));
 
-       spin_lock_irqsave(&rq->lock, flags);
+       raw_spin_lock_irqsave(&rq->lock, flags);
        if (cfs_rq->rb_leftmost)
                MIN_vruntime = (__pick_next_entity(cfs_rq))->vruntime;
        last = __pick_last_entity(cfs_rq);
@@ -192,7 +189,7 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
                max_vruntime = last->vruntime;
        min_vruntime = cfs_rq->min_vruntime;
        rq0_min_vruntime = cpu_rq(0)->cfs.min_vruntime;
-       spin_unlock_irqrestore(&rq->lock, flags);
+       raw_spin_unlock_irqrestore(&rq->lock, flags);
        SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "MIN_vruntime",
                        SPLIT_NS(MIN_vruntime));
        SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "min_vruntime",
@@ -309,6 +306,12 @@ static void print_cpu(struct seq_file *m, int cpu)
        print_rq(m, rq, cpu);
 }
 
+static const char *sched_tunable_scaling_names[] = {
+       "none",
+       "logaritmic",
+       "linear"
+};
+
 static int sched_debug_show(struct seq_file *m, void *v)
 {
        u64 now = ktime_to_ns(ktime_get());
@@ -334,6 +337,10 @@ static int sched_debug_show(struct seq_file *m, void *v)
 #undef PN
 #undef P
 
+       SEQ_printf(m, "  .%-40s: %d (%s)\n", "sysctl_sched_tunable_scaling",
+               sysctl_sched_tunable_scaling,
+               sched_tunable_scaling_names[sysctl_sched_tunable_scaling]);
+
        for_each_online_cpu(cpu)
                print_cpu(m, cpu);
 
@@ -397,42 +404,38 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
        PN(se.exec_start);
        PN(se.vruntime);
        PN(se.sum_exec_runtime);
-       PN(se.avg_overlap);
-       PN(se.avg_wakeup);
-       PN(se.avg_running);
 
        nr_switches = p->nvcsw + p->nivcsw;
 
 #ifdef CONFIG_SCHEDSTATS
-       PN(se.wait_start);
-       PN(se.sleep_start);
-       PN(se.block_start);
-       PN(se.sleep_max);
-       PN(se.block_max);
-       PN(se.exec_max);
-       PN(se.slice_max);
-       PN(se.wait_max);
-       PN(se.wait_sum);
-       P(se.wait_count);
-       PN(se.iowait_sum);
-       P(se.iowait_count);
+       PN(se.statistics.wait_start);
+       PN(se.statistics.sleep_start);
+       PN(se.statistics.block_start);
+       PN(se.statistics.sleep_max);
+       PN(se.statistics.block_max);
+       PN(se.statistics.exec_max);
+       PN(se.statistics.slice_max);
+       PN(se.statistics.wait_max);
+       PN(se.statistics.wait_sum);
+       P(se.statistics.wait_count);
+       PN(se.statistics.iowait_sum);
+       P(se.statistics.iowait_count);
        P(sched_info.bkl_count);
        P(se.nr_migrations);
-       P(se.nr_migrations_cold);
-       P(se.nr_failed_migrations_affine);
-       P(se.nr_failed_migrations_running);
-       P(se.nr_failed_migrations_hot);
-       P(se.nr_forced_migrations);
-       P(se.nr_forced2_migrations);
-       P(se.nr_wakeups);
-       P(se.nr_wakeups_sync);
-       P(se.nr_wakeups_migrate);
-       P(se.nr_wakeups_local);
-       P(se.nr_wakeups_remote);
-       P(se.nr_wakeups_affine);
-       P(se.nr_wakeups_affine_attempts);
-       P(se.nr_wakeups_passive);
-       P(se.nr_wakeups_idle);
+       P(se.statistics.nr_migrations_cold);
+       P(se.statistics.nr_failed_migrations_affine);
+       P(se.statistics.nr_failed_migrations_running);
+       P(se.statistics.nr_failed_migrations_hot);
+       P(se.statistics.nr_forced_migrations);
+       P(se.statistics.nr_wakeups);
+       P(se.statistics.nr_wakeups_sync);
+       P(se.statistics.nr_wakeups_migrate);
+       P(se.statistics.nr_wakeups_local);
+       P(se.statistics.nr_wakeups_remote);
+       P(se.statistics.nr_wakeups_affine);
+       P(se.statistics.nr_wakeups_affine_attempts);
+       P(se.statistics.nr_wakeups_passive);
+       P(se.statistics.nr_wakeups_idle);
 
        {
                u64 avg_atom, avg_per_cpu;
@@ -483,36 +486,6 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 void proc_sched_set_task(struct task_struct *p)
 {
 #ifdef CONFIG_SCHEDSTATS
-       p->se.wait_max                          = 0;
-       p->se.wait_sum                          = 0;
-       p->se.wait_count                        = 0;
-       p->se.iowait_sum                        = 0;
-       p->se.iowait_count                      = 0;
-       p->se.sleep_max                         = 0;
-       p->se.sum_sleep_runtime                 = 0;
-       p->se.block_max                         = 0;
-       p->se.exec_max                          = 0;
-       p->se.slice_max                         = 0;
-       p->se.nr_migrations                     = 0;
-       p->se.nr_migrations_cold                = 0;
-       p->se.nr_failed_migrations_affine       = 0;
-       p->se.nr_failed_migrations_running      = 0;
-       p->se.nr_failed_migrations_hot          = 0;
-       p->se.nr_forced_migrations              = 0;
-       p->se.nr_forced2_migrations             = 0;
-       p->se.nr_wakeups                        = 0;
-       p->se.nr_wakeups_sync                   = 0;
-       p->se.nr_wakeups_migrate                = 0;
-       p->se.nr_wakeups_local                  = 0;
-       p->se.nr_wakeups_remote                 = 0;
-       p->se.nr_wakeups_affine                 = 0;
-       p->se.nr_wakeups_affine_attempts        = 0;
-       p->se.nr_wakeups_passive                = 0;
-       p->se.nr_wakeups_idle                   = 0;
-       p->sched_info.bkl_count                 = 0;
+       memset(&p->se.statistics, 0, sizeof(p->se.statistics));
 #endif
-       p->se.sum_exec_runtime                  = 0;
-       p->se.prev_sum_exec_runtime             = 0;
-       p->nvcsw                                = 0;
-       p->nivcsw                               = 0;
 }