diff options
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/topology.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index bd8b6d6f5387..4197f1346153 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -335,7 +335,8 @@ static void free_sched_groups(struct sched_group *sg, int free_sgc) if (free_sgc && atomic_dec_and_test(&sg->sgc->ref)) kfree(sg->sgc); - kfree(sg); + if (atomic_dec_and_test(&sg->ref)) + kfree(sg); sg = tmp; } while (sg != first); } @@ -343,15 +344,11 @@ static void free_sched_groups(struct sched_group *sg, int free_sgc) static void destroy_sched_domain(struct sched_domain *sd) { /* - * If its an overlapping domain it has private groups, iterate and - * nuke them all. + * A sched domain has many groups' reference, and an overlapping + * domain has private groups, iterate and nuke them all. */ - if (sd->flags & SD_OVERLAP) { - free_sched_groups(sd->groups, 1); - } else if (atomic_dec_and_test(&sd->groups->ref)) { - kfree(sd->groups->sgc); - kfree(sd->groups); - } + free_sched_groups(sd->groups, 1); + if (sd->shared && atomic_dec_and_test(&sd->shared->ref)) kfree(sd->shared); kfree(sd); @@ -668,6 +665,7 @@ build_group_from_child_sched_domain(struct sched_domain *sd, int cpu) else cpumask_copy(sg_span, sched_domain_span(sd)); + atomic_inc(&sg->ref); return sg; } |