mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
sched: fix debugging
Revert debugging commit 7ba2e74ab5
.
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>
This commit is contained in:
parent
673a90a1e0
commit
d7dcdc11cf
1 changed files with 0 additions and 27 deletions
|
@ -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
|
||||
|
|
Loading…
Reference in a new issue