cgroup: Call ifupdown in system cgroup

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

README.md

@@ -254,8 +254,8 @@ in which services and user sessions are placed in:
        |-- system/             # cpu.weight:9800
        `-- user/               # cpu.weight:100
 
-Finit itself, helper services like `ifup -a`, and the like are placed
-in the leaf-node group `init/`, which also is _reserved_.
+Finit itself and its helper scripts and services are placed in the
+top-level leaf-node group `init/`, which also is _reserved_.
 
 All run/task/service/sysv processes are placed in their own sub-group
 in `system/`.  The name of each sub-group is taken from the respective

doc/config.md

@@ -160,9 +160,8 @@ the above three.  We leave `init/` and `user /` as-is reducing weight of
     cgroup maint  cpu.weight:100
 
 By default, the `system/` cgroup is selected for almost everything.  The
-`init/` cgroup is reserved for PID 1 itself and its closest relatives,
-e.g., children of `ifup -a`.  The `user/` cgroup is for local TTY logins
-spawned by getty.
+`init/` cgroup is reserved for PID 1 itself and its closest relatives.
+The `user/` cgroup is for local TTY logins spawned by getty.
 
 To select a different top-level cgroup, e.g. `maint/`, one can either
 define it for a group of run/task/service directives in a `.conf` or per

src/helpers.c

@@ -537,6 +537,7 @@ void networking(int updown)
 				run("ifdown -a");
 			_exit(0);
 		}
+		cgroup_service("network", pid, NULL);
 
 		print(pid > 0 ? 0 : 1, "%s networking", updown ? "Starting" : "Stopping");
 	}