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authorMike Galbraith <efault@gmx.de>2008-04-29 12:23:09 +0200
committerIngo Molnar <mingo@elte.hu>2008-05-05 23:56:18 +0200
commitd7dcdc11cfa6a8860a29b09f985467b89224699d (patch)
treecd7b8c1ba9b23ec84f93e58417e67644dfd7a124 /kernel/sched_fair.c
parent673a90a1e05c8127886f7659d1a457169378371f (diff)
downloadop-kernel-dev-d7dcdc11cfa6a8860a29b09f985467b89224699d.zip
op-kernel-dev-d7dcdc11cfa6a8860a29b09f985467b89224699d.tar.gz
sched: fix debugging
Revert debugging commit 7ba2e74ab5a0518bc953042952dd165724bc70c9. print_cfs_rq_tasks() can induce live-lock if a task is dequeued during list traversal. Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_fair.c')
-rw-r--r--kernel/sched_fair.c27
1 files changed, 0 insertions, 27 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 1d5f35b..d99e01f 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1613,30 +1613,6 @@ static const struct sched_class fair_sched_class = {
};
#ifdef CONFIG_SCHED_DEBUG
-static void
-print_cfs_rq_tasks(struct seq_file *m, struct cfs_rq *cfs_rq, int depth)
-{
- struct sched_entity *se;
-
- if (!cfs_rq)
- return;
-
- list_for_each_entry_rcu(se, &cfs_rq->tasks, group_node) {
- int i;
-
- for (i = depth; i; i--)
- seq_puts(m, " ");
-
- seq_printf(m, "%lu %s %lu\n",
- se->load.weight,
- entity_is_task(se) ? "T" : "G",
- calc_delta_weight(SCHED_LOAD_SCALE, se)
- );
- if (!entity_is_task(se))
- print_cfs_rq_tasks(m, group_cfs_rq(se), depth + 1);
- }
-}
-
static void print_cfs_stats(struct seq_file *m, int cpu)
{
struct cfs_rq *cfs_rq;
@@ -1644,9 +1620,6 @@ static void print_cfs_stats(struct seq_file *m, int cpu)
rcu_read_lock();
for_each_leaf_cfs_rq(cpu_rq(cpu), cfs_rq)
print_cfs_rq(m, cpu, cfs_rq);
-
- seq_printf(m, "\nWeight tree:\n");
- print_cfs_rq_tasks(m, &cpu_rq(cpu)->cfs, 1);
rcu_read_unlock();
}
#endif
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