sched: clean up debug info

Impact: clean up and fix debug info printout

While looking over the sched_debug code I noticed that we printed the rq
schedstats for every cfs_rq, ammend this.

Also change nr_spead_over into an int, and fix a little buglet in
min_vruntime printing.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/sched.c b/kernel/sched.c
index 57c933f..f314924 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -399,7 +399,7 @@ struct cfs_rq {
         */
        struct sched_entity *curr, *next, *last;
 
-       unsigned long nr_spread_over;
+       unsigned int nr_spread_over;
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
        struct rq *rq;  /* cpu runqueue to which this cfs_rq is attached */

diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 5ae1776..48ecc51 100644 (file)
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -144,7 +144,7 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
        last = __pick_last_entity(cfs_rq);
        if (last)
                max_vruntime = last->vruntime;
-       min_vruntime = rq->cfs.min_vruntime;
+       min_vruntime = cfs_rq->min_vruntime;
        rq0_min_vruntime = per_cpu(runqueues, 0).cfs.min_vruntime;
        spin_unlock_irqrestore(&rq->lock, flags);
        SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "MIN_vruntime",
@@ -161,26 +161,8 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
                        SPLIT_NS(spread0));
        SEQ_printf(m, "  .%-30s: %ld\n", "nr_running", cfs_rq->nr_running);
        SEQ_printf(m, "  .%-30s: %ld\n", "load", cfs_rq->load.weight);
-#ifdef CONFIG_SCHEDSTATS
-#define P(n) SEQ_printf(m, "  .%-30s: %d\n", #n, rq->n);
-
-       P(yld_exp_empty);
-       P(yld_act_empty);
-       P(yld_both_empty);
-       P(yld_count);
 
-       P(sched_switch);
-       P(sched_count);
-       P(sched_goidle);
-
-       P(ttwu_count);
-       P(ttwu_local);
-
-       P(bkl_count);
-
-#undef P
-#endif
-       SEQ_printf(m, "  .%-30s: %ld\n", "nr_spread_over",
+       SEQ_printf(m, "  .%-30s: %d\n", "nr_spread_over",
                        cfs_rq->nr_spread_over);
 #ifdef CONFIG_FAIR_GROUP_SCHED
 #ifdef CONFIG_SMP
@@ -260,6 +242,25 @@ static void print_cpu(struct seq_file *m, int cpu)
 #undef P
 #undef PN
 
+#ifdef CONFIG_SCHEDSTATS
+#define P(n) SEQ_printf(m, "  .%-30s: %d\n", #n, rq->n);
+
+       P(yld_exp_empty);
+       P(yld_act_empty);
+       P(yld_both_empty);
+       P(yld_count);
+
+       P(sched_switch);
+       P(sched_count);
+       P(sched_goidle);
+
+       P(ttwu_count);
+       P(ttwu_local);
+
+       P(bkl_count);
+
+#undef P
+#endif
        print_cfs_stats(m, cpu);
        print_rt_stats(m, cpu);