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Commit b309e5b7 authored by Tejun Heo's avatar Tejun Heo
Browse files

cgroup: remove an unused parameter from cgroup_task_migrate() 



cgroup_task_migrate() no longer uses @old_cgrp.  Remove it.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent a3e72739

kernel/cgroup.c

+2 −5
Original line number Diff line number Diff line
@@ -2235,14 +2235,12 @@ struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset) 


/**

 * cgroup_task_migrate - move a task from one cgroup to another.

 * @old_cgrp: the cgroup @tsk is being migrated from

 * @tsk: the task being migrated

 * @new_cset: the new css_set @tsk is being attached to

 *

 * Must be called with cgroup_mutex, threadgroup and css_set_rwsem locked.

 */

static void cgroup_task_migrate(struct cgroup *old_cgrp,

				struct task_struct *tsk,

static void cgroup_task_migrate(struct task_struct *tsk,

				struct css_set *new_cset)

{

	struct css_set *old_cset;
@@ -2311,8 +2309,7 @@ static int cgroup_taskset_migrate(struct cgroup_taskset *tset, 
	down_write(&css_set_rwsem);

	list_for_each_entry(cset, &tset->src_csets, mg_node) {

		list_for_each_entry_safe(task, tmp_task, &cset->mg_tasks, cg_list)

			cgroup_task_migrate(cset->mg_src_cgrp, task,

					    cset->mg_dst_cset);

			cgroup_task_migrate(task, cset->mg_dst_cset);

	}

	up_write(&css_set_rwsem);