diff options
Diffstat (limited to 'kernel/cgroup')
| -rw-r--r-- | kernel/cgroup/cpuset.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index f87526edb2a4..1892dc8cd211 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -954,10 +954,12 @@ static void dl_update_tasks_root_domain(struct cpuset *cs) css_task_iter_end(&it); } -static void dl_rebuild_rd_accounting(void) +void dl_rebuild_rd_accounting(void) { struct cpuset *cs = NULL; struct cgroup_subsys_state *pos_css; + int cpu; + u64 cookie = ++dl_cookie; lockdep_assert_held(&cpuset_mutex); lockdep_assert_cpus_held(); @@ -965,11 +967,12 @@ static void dl_rebuild_rd_accounting(void) rcu_read_lock(); - /* - * Clear default root domain DL accounting, it will be computed again - * if a task belongs to it. - */ - dl_clear_root_domain(&def_root_domain); + for_each_possible_cpu(cpu) { + if (dl_bw_visited(cpu, cookie)) + continue; + + dl_clear_root_domain_cpu(cpu); + } cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) { @@ -996,7 +999,6 @@ partition_and_rebuild_sched_domains(int ndoms_new, cpumask_var_t doms_new[], { sched_domains_mutex_lock(); partition_sched_domains_locked(ndoms_new, doms_new, dattr_new); - dl_rebuild_rd_accounting(); sched_domains_mutex_unlock(); } @@ -1083,6 +1085,13 @@ void rebuild_sched_domains(void) cpus_read_unlock(); } +void cpuset_reset_sched_domains(void) +{ + mutex_lock(&cpuset_mutex); + partition_sched_domains(1, NULL, NULL); + mutex_unlock(&cpuset_mutex); +} + /** * cpuset_update_tasks_cpumask - Update the cpumasks of tasks in the cpuset. * @cs: the cpuset in which each task's cpus_allowed mask needs to be changed |