From b1929db42f8a649d9a9e397119f628c27fd4021f Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 19 Nov 2012 08:13:38 -0800 Subject: cgroup: allow ->post_create() to fail There could be cases where controllers want to do initialization operations which may fail from ->post_create(). This patch makes ->post_create() return -errno to indicate failure and online_css() relay such failures. Signed-off-by: Tejun Heo Acked-by: Li Zefan Cc: Glauber Costa --- include/linux/cgroup.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/cgroup.h') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index f4a9c9836906..03d8a92786da 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -440,7 +440,7 @@ int cgroup_taskset_size(struct cgroup_taskset *tset); struct cgroup_subsys { struct cgroup_subsys_state *(*create)(struct cgroup *cgrp); - void (*post_create)(struct cgroup *cgrp); + int (*post_create)(struct cgroup *cgrp); void (*pre_destroy)(struct cgroup *cgrp); void (*destroy)(struct cgroup *cgrp); int (*can_attach)(struct cgroup *cgrp, struct cgroup_taskset *tset); -- cgit v1.2.3