diff options
| -rw-r--r-- | kernel/cgroup/cpuset.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 58ec88efa4f8..4749e0c86c62 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -1304,13 +1304,23 @@ static int update_partition_exclusive(struct cpuset *cs, int new_prs) * * Changing load balance flag will automatically call * rebuild_sched_domains_locked(). + * This function is for cgroup v2 only. */ static void update_partition_sd_lb(struct cpuset *cs, int old_prs) { int new_prs = cs->partition_root_state; - bool new_lb = (new_prs != PRS_ISOLATED); bool rebuild_domains = (new_prs > 0) || (old_prs > 0); + bool new_lb; + /* + * If cs is not a valid partition root, the load balance state + * will follow its parent. + */ + if (new_prs > 0) { + new_lb = (new_prs != PRS_ISOLATED); + } else { + new_lb = is_sched_load_balance(parent_cs(cs)); + } if (new_lb != !!is_sched_load_balance(cs)) { rebuild_domains = true; if (new_lb) |