diff options
Diffstat (limited to 'kernel/cgroup/freezer.c')
| -rw-r--r-- | kernel/cgroup/freezer.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/cgroup/freezer.c b/kernel/cgroup/freezer.c index 8cf010680678..3984dd6b8ddb 100644 --- a/kernel/cgroup/freezer.c +++ b/kernel/cgroup/freezer.c @@ -231,6 +231,15 @@ void cgroup_freezer_migrate_task(struct task_struct *task, return; /* + * It's not necessary to do changes if both of the src and dst cgroups + * are not freezing and task is not frozen. + */ + if (!test_bit(CGRP_FREEZE, &src->flags) && + !test_bit(CGRP_FREEZE, &dst->flags) && + !task->frozen) + return; + + /* * Adjust counters of freezing and frozen tasks. * Note, that if the task is frozen, but the destination cgroup is not * frozen, we bump both counters to keep them balanced. |