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Diffstat (limited to 'net/sched/sch_api.c')
-rw-r--r--net/sched/sch_api.c35
1 files changed, 23 insertions, 12 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 13c09bc32aa3..8ae137e3522b 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -28,6 +28,7 @@
#include <linux/list.h>
#include <linux/hrtimer.h>
+#include <net/net_namespace.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
@@ -380,6 +381,10 @@ void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n)
return;
while ((parentid = sch->parent)) {
sch = qdisc_lookup(sch->dev, TC_H_MAJ(parentid));
+ if (sch == NULL) {
+ WARN_ON(parentid != TC_H_ROOT);
+ return;
+ }
cops = sch->ops->cl_ops;
if (cops->qlen_notify) {
cl = cops->get(sch, parentid);
@@ -420,8 +425,6 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
unsigned long cl = cops->get(parent, classid);
if (cl) {
err = cops->graft(parent, cl, new, old);
- if (new)
- new->parent = classid;
cops->put(parent, cl);
}
}
@@ -436,7 +439,8 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
*/
static struct Qdisc *
-qdisc_create(struct net_device *dev, u32 handle, struct rtattr **tca, int *errp)
+qdisc_create(struct net_device *dev, u32 parent, u32 handle,
+ struct rtattr **tca, int *errp)
{
int err;
struct rtattr *kind = tca[TCA_KIND-1];
@@ -482,6 +486,8 @@ qdisc_create(struct net_device *dev, u32 handle, struct rtattr **tca, int *errp)
goto err_out2;
}
+ sch->parent = parent;
+
if (handle == TC_H_INGRESS) {
sch->flags |= TCQ_F_INGRESS;
sch->stats_lock = &dev->ingress_lock;
@@ -601,7 +607,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
struct Qdisc *p = NULL;
int err;
- if ((dev = __dev_get_by_index(tcm->tcm_ifindex)) == NULL)
+ if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
return -ENODEV;
if (clid) {
@@ -668,7 +674,7 @@ replay:
clid = tcm->tcm_parent;
q = p = NULL;
- if ((dev = __dev_get_by_index(tcm->tcm_ifindex)) == NULL)
+ if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
return -ENODEV;
if (clid) {
@@ -758,9 +764,11 @@ create_n_graft:
if (!(n->nlmsg_flags&NLM_F_CREATE))
return -ENOENT;
if (clid == TC_H_INGRESS)
- q = qdisc_create(dev, tcm->tcm_parent, tca, &err);
+ q = qdisc_create(dev, tcm->tcm_parent, tcm->tcm_parent,
+ tca, &err);
else
- q = qdisc_create(dev, tcm->tcm_handle, tca, &err);
+ q = qdisc_create(dev, tcm->tcm_parent, tcm->tcm_handle,
+ tca, &err);
if (q == NULL) {
if (err == -EAGAIN)
goto replay;
@@ -873,7 +881,7 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
s_q_idx = q_idx = cb->args[1];
read_lock(&dev_base_lock);
idx = 0;
- for_each_netdev(dev) {
+ for_each_netdev(&init_net, dev) {
if (idx < s_idx)
goto cont;
if (idx > s_idx)
@@ -924,7 +932,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
u32 qid = TC_H_MAJ(clid);
int err;
- if ((dev = __dev_get_by_index(tcm->tcm_ifindex)) == NULL)
+ if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
return -ENODEV;
/*
@@ -1107,7 +1115,7 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
if (cb->nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*tcm)))
return 0;
- if ((dev = dev_get_by_index(tcm->tcm_ifindex)) == NULL)
+ if ((dev = dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
return 0;
s_t = cb->args[0];
@@ -1218,10 +1226,13 @@ EXPORT_SYMBOL(tcf_destroy_chain);
#ifdef CONFIG_PROC_FS
static int psched_show(struct seq_file *seq, void *v)
{
+ struct timespec ts;
+
+ hrtimer_get_res(CLOCK_MONOTONIC, &ts);
seq_printf(seq, "%08x %08x %08x %08x\n",
(u32)NSEC_PER_USEC, (u32)PSCHED_US2NS(1),
1000000,
- (u32)NSEC_PER_SEC/(u32)ktime_to_ns(KTIME_MONOTONIC_RES));
+ (u32)NSEC_PER_SEC/(u32)ktime_to_ns(timespec_to_ktime(ts)));
return 0;
}
@@ -1244,7 +1255,7 @@ static int __init pktsched_init(void)
{
register_qdisc(&pfifo_qdisc_ops);
register_qdisc(&bfifo_qdisc_ops);
- proc_net_fops_create("psched", 0, &psched_fops);
+ proc_net_fops_create(&init_net, "psched", 0, &psched_fops);
rtnl_register(PF_UNSPEC, RTM_NEWQDISC, tc_modify_qdisc, NULL);
rtnl_register(PF_UNSPEC, RTM_DELQDISC, tc_get_qdisc, NULL);