From 8cbbf2c972c4444cad36f61cd571714c39b8cf04 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 19 Mar 2014 10:23:55 -0400 Subject: cgroup: implement CFTYPE_ONLY_ON_DFL This cftype flag makes the file only appear on the default hierarchy. This will later be used for cgroup.controllers file. Signed-off-by: Tejun Heo Acked-by: Li Zefan --- kernel/cgroup.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/cgroup.c') diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 69b4939e9f6d..37b6d534b0ca 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2356,6 +2356,8 @@ static int cgroup_addrm_files(struct cgroup *cgrp, struct cftype cfts[], for (cft = cfts; cft->name[0] != '\0'; cft++) { /* does cft->flags tell us to skip this file on @cgrp? */ + if ((cft->flags & CFTYPE_ONLY_ON_DFL) && !cgroup_on_dfl(cgrp)) + continue; if ((cft->flags & CFTYPE_INSANE) && cgroup_sane_behavior(cgrp)) continue; if ((cft->flags & CFTYPE_NOT_ON_ROOT) && !cgrp->parent) -- cgit v1.2.3