cgroups: s/cgroup2_chown/delegate/g

src/lxc/cgroups/cgfsng.c

@@ -1326,7 +1326,7 @@ static int chown_cgroup_wrapper(void *data)
 		if (arg->hierarchies[i]->fs_type != UNIFIED_HIERARCHY)
 			continue;
 
-		for (char **p = arg->hierarchies[i]->cgroup2_chown; p && *p; p++)
+		for (char **p = arg->hierarchies[i]->delegate; p && *p; p++)
 			(void)fchowmodat(dirfd, *p, destuid, nsgid, 0664);
 	}
 
@@ -3213,7 +3213,7 @@ static int __initialize_cgroups(struct cgroup_ops *ops, bool relative,
 		move_ptr(controllers);
 		move_ptr(controller_list);
 		if (type == UNIFIED_HIERARCHY)
-			ops->unified->cgroup2_chown = move_ptr(delegate);
+			ops->unified->delegate = move_ptr(delegate);
 	}
 
 	/* determine cgroup layout */

src/lxc/cgroups/cgroup.c

@@ -81,9 +81,9 @@ void cgroup_exit(struct cgroup_ops *ops)
 			free(*p);
 		free((*it)->controllers);
 
-		for (char **p = (*it)->cgroup2_chown; p && *p; p++)
+		for (char **p = (*it)->delegate; p && *p; p++)
 			free(*p);
-		free((*it)->cgroup2_chown);
+		free((*it)->delegate);
 
 		free((*it)->at_mnt);
 		free((*it)->at_base);

src/lxc/cgroups/cgroup.h

@@ -103,12 +103,7 @@ struct hierarchy {
 	char *at_base;
 
 	struct /* unified hierarchy specific */ {
-		/*
-		 * cgroup2 only: what files need to be chowned to delegate a
-		 * cgroup to an unprivileged user.
-		 */
-		char **cgroup2_chown;
-		/* cgroup2 only */
+		char **delegate;
 		unsigned int bpf_device_controller : 1;
 		unsigned int freezer_controller : 1;
 	};