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netdev: Move rest of qdisc state into struct netdev_queue

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Now qdisc, qdisc_sleeping, and qdisc_list also live there.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-07-08 17:42:10 -07:00
parent 555353cfa1
commit b0e1e6462d
13 changed files with 125 additions and 77 deletions
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34
net/sched/sch_api.c
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@@ -185,9 +185,10 @@ EXPORT_SYMBOL(unregister_qdisc);
struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
{
struct netdev_queue *dev_queue = &dev->tx_queue;
struct Qdisc *q;
list_for_each_entry(q, &dev->qdisc_list, list) {
list_for_each_entry(q, &dev_queue->qdisc_list, list) {
if (q->handle == handle)
return q;
}
@@ -441,6 +442,7 @@ static u32 qdisc_alloc_handle(struct net_device *dev)
static struct Qdisc *
dev_graft_qdisc(struct net_device *dev, struct Qdisc *qdisc)
{
struct netdev_queue *dev_queue;
struct Qdisc *oqdisc;
if (dev->flags & IFF_UP)
@@ -459,8 +461,8 @@ dev_graft_qdisc(struct net_device *dev, struct Qdisc *qdisc)
}
} else {
oqdisc = dev->qdisc_sleeping;
dev_queue = &dev->tx_queue;
oqdisc = dev_queue->qdisc_sleeping;
/* Prune old scheduler */
if (oqdisc && atomic_read(&oqdisc->refcnt) <= 1)
@@ -469,8 +471,8 @@ dev_graft_qdisc(struct net_device *dev, struct Qdisc *qdisc)
/* ... and graft new one */
if (qdisc == NULL)
qdisc = &noop_qdisc;
dev->qdisc_sleeping = qdisc;
dev->qdisc = &noop_qdisc;
dev_queue->qdisc_sleeping = qdisc;
dev_queue->qdisc = &noop_qdisc;
}
qdisc_unlock_tree(dev);
@@ -633,7 +635,7 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue,
}
}
qdisc_lock_tree(dev);
list_add_tail(&sch->list, &dev->qdisc_list);
list_add_tail(&sch->list, &dev_queue->qdisc_list);
qdisc_unlock_tree(dev);
return sch;
@@ -740,7 +742,8 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
q = dev->qdisc_ingress;
}
} else {
q = dev->qdisc_sleeping;
struct netdev_queue *dev_queue = &dev->tx_queue;
q = dev_queue->qdisc_sleeping;
}
if (!q)
return -ENOENT;
@@ -814,7 +817,8 @@ replay:
q = dev->qdisc_ingress;
}
} else {
q = dev->qdisc_sleeping;
struct netdev_queue *dev_queue = &dev->tx_queue;
q = dev_queue->qdisc_sleeping;
}
/* It may be default qdisc, ignore it */
@@ -1015,12 +1019,14 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
read_lock(&dev_base_lock);
idx = 0;
for_each_netdev(&init_net, dev) {
struct netdev_queue *dev_queue;
if (idx < s_idx)
goto cont;
if (idx > s_idx)
s_q_idx = 0;
q_idx = 0;
list_for_each_entry(q, &dev->qdisc_list, list) {
dev_queue = &dev->tx_queue;
list_for_each_entry(q, &dev_queue->qdisc_list, list) {
if (q_idx < s_q_idx) {
q_idx++;
continue;
@@ -1054,6 +1060,7 @@ done:
static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
{
struct net *net = sock_net(skb->sk);
struct netdev_queue *dev_queue;
struct tcmsg *tcm = NLMSG_DATA(n);
struct nlattr *tca[TCA_MAX + 1];
struct net_device *dev;
@@ -1091,6 +1098,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
/* Step 1. Determine qdisc handle X:0 */
dev_queue = &dev->tx_queue;
if (pid != TC_H_ROOT) {
u32 qid1 = TC_H_MAJ(pid);
@@ -1101,7 +1109,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
} else if (qid1) {
qid = qid1;
} else if (qid == 0)
qid = dev->qdisc_sleeping->handle;
qid = dev_queue->qdisc_sleeping->handle;
/* Now qid is genuine qdisc handle consistent
both with parent and child.
@@ -1112,7 +1120,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
pid = TC_H_MAKE(qid, pid);
} else {
if (qid == 0)
qid = dev->qdisc_sleeping->handle;
qid = dev_queue->qdisc_sleeping->handle;
}
/* OK. Locate qdisc */
@@ -1248,6 +1256,7 @@ static int qdisc_class_dump(struct Qdisc *q, unsigned long cl, struct qdisc_walk
static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
{
struct net *net = sock_net(skb->sk);
struct netdev_queue *dev_queue;
int t;
int s_t;
struct net_device *dev;
@@ -1266,7 +1275,8 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
s_t = cb->args[0];
t = 0;
list_for_each_entry(q, &dev->qdisc_list, list) {
dev_queue = &dev->tx_queue;
list_for_each_entry(q, &dev_queue->qdisc_list, list) {
if (t < s_t || !q->ops->cl_ops ||
(tcm->tcm_parent &&
TC_H_MAJ(tcm->tcm_parent) != q->handle)) {