net_sched: make traffic control network namespace aware
Mostly minor changes to add a net argument to various functions and
remove initial network namespace checks.
Make /proc/net/psched per network namespace.
Signed-off-by: Tom Goff <thomas.goff@boeing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 3725d8f..4a795d9 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -98,8 +98,9 @@
}
EXPORT_SYMBOL(unregister_tcf_proto_ops);
-static int tfilter_notify(struct sk_buff *oskb, struct nlmsghdr *n,
- struct tcf_proto *tp, unsigned long fh, int event);
+static int tfilter_notify(struct net *net, struct sk_buff *oskb,
+ struct nlmsghdr *n, struct tcf_proto *tp,
+ unsigned long fh, int event);
/* Select new prio value from the range, managed by kernel. */
@@ -137,9 +138,6 @@
int err;
int tp_created = 0;
- if (!net_eq(net, &init_net))
- return -EINVAL;
-
replay:
t = NLMSG_DATA(n);
protocol = TC_H_MIN(t->tcm_info);
@@ -158,7 +156,7 @@
/* Find head of filter chain. */
/* Find link */
- dev = __dev_get_by_index(&init_net, t->tcm_ifindex);
+ dev = __dev_get_by_index(net, t->tcm_ifindex);
if (dev == NULL)
return -ENODEV;
@@ -282,7 +280,7 @@
*back = tp->next;
spin_unlock_bh(root_lock);
- tfilter_notify(skb, n, tp, fh, RTM_DELTFILTER);
+ tfilter_notify(net, skb, n, tp, fh, RTM_DELTFILTER);
tcf_destroy(tp);
err = 0;
goto errout;
@@ -305,10 +303,10 @@
case RTM_DELTFILTER:
err = tp->ops->delete(tp, fh);
if (err == 0)
- tfilter_notify(skb, n, tp, fh, RTM_DELTFILTER);
+ tfilter_notify(net, skb, n, tp, fh, RTM_DELTFILTER);
goto errout;
case RTM_GETTFILTER:
- err = tfilter_notify(skb, n, tp, fh, RTM_NEWTFILTER);
+ err = tfilter_notify(net, skb, n, tp, fh, RTM_NEWTFILTER);
goto errout;
default:
err = -EINVAL;
@@ -324,7 +322,7 @@
*back = tp;
spin_unlock_bh(root_lock);
}
- tfilter_notify(skb, n, tp, fh, RTM_NEWTFILTER);
+ tfilter_notify(net, skb, n, tp, fh, RTM_NEWTFILTER);
} else {
if (tp_created)
tcf_destroy(tp);
@@ -370,8 +368,9 @@
return -1;
}
-static int tfilter_notify(struct sk_buff *oskb, struct nlmsghdr *n,
- struct tcf_proto *tp, unsigned long fh, int event)
+static int tfilter_notify(struct net *net, struct sk_buff *oskb,
+ struct nlmsghdr *n, struct tcf_proto *tp,
+ unsigned long fh, int event)
{
struct sk_buff *skb;
u32 pid = oskb ? NETLINK_CB(oskb).pid : 0;
@@ -385,7 +384,7 @@
return -EINVAL;
}
- return rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC,
+ return rtnetlink_send(skb, net, pid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
}
@@ -418,12 +417,9 @@
const struct Qdisc_class_ops *cops;
struct tcf_dump_args arg;
- if (!net_eq(net, &init_net))
- return 0;
-
if (cb->nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*tcm)))
return skb->len;
- if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
+ if ((dev = __dev_get_by_index(net, tcm->tcm_ifindex)) == NULL)
return skb->len;
if (!tcm->tcm_parent)