155 static void cgroup_freeze_task(struct task_struct *task, bool freeze)  in cgroup_freeze_task()  argument
160 	if (!lock_task_sighand(task, &flags))  in cgroup_freeze_task()
164 		task->jobctl |= JOBCTL_TRAP_FREEZE;  in cgroup_freeze_task()
165 		signal_wake_up(task, false);  in cgroup_freeze_task()
167 		task->jobctl &= ~JOBCTL_TRAP_FREEZE;  in cgroup_freeze_task()
168 		wake_up_process(task);  in cgroup_freeze_task()
171 	unlock_task_sighand(task, &flags);  in cgroup_freeze_task()
180 	struct task_struct *task;  in cgroup_do_freeze()  local
197 	while ((task = css_task_iter_next(&it))) {  in cgroup_do_freeze()
202 		if (task->flags & PF_KTHREAD)  in cgroup_do_freeze()
204 		cgroup_freeze_task(task, freeze);  in cgroup_do_freeze()
222 void cgroup_freezer_migrate_task(struct task_struct *task,  in cgroup_freezer_migrate_task()  argument
230 	if (task->flags & PF_KTHREAD)  in cgroup_freezer_migrate_task()
239 	    !task->frozen)  in cgroup_freezer_migrate_task()
247 	if (task->frozen) {  in cgroup_freezer_migrate_task()
257 	cgroup_freeze_task(task, test_bit(CGRP_FREEZE, &dst->flags));  in cgroup_freezer_migrate_task()