diff options
| -rw-r--r-- | net/sched/Kconfig | 5 | ||||
| -rw-r--r-- | net/sched/cls_cgroup.c | 36 |
2 files changed, 31 insertions, 10 deletions
diff --git a/net/sched/Kconfig b/net/sched/Kconfig index 21f9c7678aa3..2f691fb180d1 100644 --- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -328,13 +328,16 @@ config NET_CLS_FLOW module will be called cls_flow. config NET_CLS_CGROUP - bool "Control Group Classifier" + tristate "Control Group Classifier" select NET_CLS depends on CGROUPS ---help--- Say Y here if you want to classify packets based on the control cgroup of their process. + To compile this code as a module, choose M here: the + module will be called cls_cgroup. + config NET_EMATCH bool "Extended Matches" select NET_CLS diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index e4877ca6727c..7f27d2c15e08 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -24,6 +24,25 @@ struct cgroup_cls_state u32 classid; }; +static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss, + struct cgroup *cgrp); +static void cgrp_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp); +static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp); + +struct cgroup_subsys net_cls_subsys = { + .name = "net_cls", + .create = cgrp_create, + .destroy = cgrp_destroy, + .populate = cgrp_populate, +#ifdef CONFIG_NET_CLS_CGROUP + .subsys_id = net_cls_subsys_id, +#else +#define net_cls_subsys_id net_cls_subsys.subsys_id +#endif + .module = THIS_MODULE, +}; + + static inline struct cgroup_cls_state *cgrp_cls_state(struct cgroup *cgrp) { return container_of(cgroup_subsys_state(cgrp, net_cls_subsys_id), @@ -79,14 +98,6 @@ static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp) return cgroup_add_files(cgrp, ss, ss_files, ARRAY_SIZE(ss_files)); } -struct cgroup_subsys net_cls_subsys = { - .name = "net_cls", - .create = cgrp_create, - .destroy = cgrp_destroy, - .populate = cgrp_populate, - .subsys_id = net_cls_subsys_id, -}; - struct cls_cgroup_head { u32 handle; @@ -277,12 +288,19 @@ static struct tcf_proto_ops cls_cgroup_ops __read_mostly = { static int __init init_cgroup_cls(void) { - return register_tcf_proto_ops(&cls_cgroup_ops); + int ret = register_tcf_proto_ops(&cls_cgroup_ops); + if (ret) + return ret; + ret = cgroup_load_subsys(&net_cls_subsys); + if (ret) + unregister_tcf_proto_ops(&cls_cgroup_ops); + return ret; } static void __exit exit_cgroup_cls(void) { unregister_tcf_proto_ops(&cls_cgroup_ops); + cgroup_unload_subsys(&net_cls_subsys); } module_init(init_cgroup_cls); |