*/
static int freezer_can_attach(struct cgroup_subsys *ss,
struct cgroup *new_cgroup,
- struct task_struct *task)
+ struct cgroup_taskset *tset)
{
struct freezer *freezer;
+ struct task_struct *task;
/*
* Anything frozen can't move or be moved to/from.
*/
+ cgroup_taskset_for_each(task, new_cgroup, tset)
+ if (cgroup_freezing(task))
+ return -EBUSY;
freezer = cgroup_freezer(new_cgroup);
if (freezer->state != CGROUP_THAWED)
return 0;
}
-static int freezer_can_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
-{
- return cgroup_freezing(tsk) ? -EBUSY : 0;
-}
-
static void freezer_fork(struct cgroup_subsys *ss, struct task_struct *task)
{
struct freezer *freezer;
.populate = freezer_populate,
.subsys_id = freezer_subsys_id,
.can_attach = freezer_can_attach,
- .can_attach_task = freezer_can_attach_task,
- .pre_attach = NULL,
- .attach_task = NULL,
- .attach = NULL,
.fork = freezer_fork,
- .exit = NULL,
};