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Commit d8ebf519 authored by Tejun Heo's avatar Tejun Heo
Browse files

cgroup: cosmetic update to cgroup_taskset_add() 



cgroup_taskset_add() was using list_add_tail() when for source csets
but list_move_tail() for destination.  As the operations are gated by
list_empty() test, list_move_tail() is equivalent to list_add_tail()
here.  Use list_add_tail() too for destination csets too.

This doesn't cause any functional changes.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Acked-by: default avatarZefan Li <lizefan@huawei.com>
parent 20c56e59

kernel/cgroup/cgroup.c

+2 −2
Original line number Diff line number Diff line
@@ -1980,7 +1980,7 @@ static void cgroup_taskset_add(struct task_struct *task, 
	if (list_empty(&cset->mg_node))

		list_add_tail(&cset->mg_node, &tset->src_csets);

	if (list_empty(&cset->mg_dst_cset->mg_node))

		list_move_tail(&cset->mg_dst_cset->mg_node,

		list_add_tail(&cset->mg_dst_cset->mg_node,

			      &tset->dst_csets);

}