On 02/12, Roman Gushchin wrote:
>
> - handle properly the case, when a task is both stopped and frozen
I didn't read this version yet, just looked at
+static void cgroup_update_frozen(struct cgroup *cgrp)
+{
+ bool frozen;
+
+ lockdep_assert_held(&css_set_lock);
+
+ /*
+ * If the cgroup has to be frozen (CGRP_FREEZE bit set),
+ * and all tasks are frozen and/or stopped, let's consider
+ * the cgroup frozen. Otherwise it's not frozen.
+ */
+ frozen = test_bit(CGRP_FREEZE, &cgrp->flags) &&
+ cgrp->freezer.nr_frozen_tasks +
+ cgrp->freezer.nr_stopped_tasks >=
+ cgrp->freezer.nr_tasks_to_freeze;
if this is the only change which should handle this case correctly, I doubt it can
help. See another email I sent you a minute ago...
Oleg.
