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-rw-r--r--include/linux/cgroup-defs.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 789471dba..89d944b25 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -210,6 +210,9 @@ struct css_set {
/* all css_task_iters currently walking this cset */
struct list_head task_iters;
+ /* dead and being drained, ignore for migration */
+ bool dead;
+
/* For RCU-protected deletion */
struct rcu_head rcu_head;
};