cgroup: remove cgroup_subsys->populate()

With memcg converted, cgroup_subsys->populate() doesn't have any user left. Remove it. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com>
mariux64 · Apr 11, 2012 · 86f82d5 · 86f82d5
1 parent cbe128e
commit 86f82d5
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diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
@@ -472,7 +472,6 @@ struct cgroup_subsys {
 	void (*fork)(struct task_struct *task);
 	void (*exit)(struct cgroup *cgrp, struct cgroup *old_cgrp,
 		     struct task_struct *task);
-	int (*populate)(struct cgroup_subsys *ss, struct cgroup *cgrp);
 	void (*post_clone)(struct cgroup *cgrp);
 	void (*bind)(struct cgroup *root);
 

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
@@ -3842,9 +3842,6 @@ static int cgroup_populate_dir(struct cgroup *cgrp)
 	for_each_subsys(cgrp->root, ss) {
 		struct cftype_set *set;
 
-		if (ss->populate && (err = ss->populate(ss, cgrp)) < 0)
-			return err;
-
 		list_for_each_entry(set, &ss->cftsets, node)
 			cgroup_addrm_files(cgrp, ss, set->cfts, true);
 	}