diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-20 21:04:44 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-20 21:04:44 -0700 |
commit | f8965467f366fd18f01feafb5db10512d7b4422c (patch) | |
tree | 3706a9cd779859271ca61b85c63a1bc3f82d626e /net/sched | |
parent | a26272e5200765691e67d6780e52b32498fdb659 (diff) | |
parent | 2ec8c6bb5d8f3a62a79f463525054bae1e3d4487 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits)
qlcnic: adding co maintainer
ixgbe: add support for active DA cables
ixgbe: dcb, do not tag tc_prio_control frames
ixgbe: fix ixgbe_tx_is_paused logic
ixgbe: always enable vlan strip/insert when DCB is enabled
ixgbe: remove some redundant code in setting FCoE FIP filter
ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp
ixgbe: fix header len when unsplit packet overflows to data buffer
ipv6: Never schedule DAD timer on dead address
ipv6: Use POSTDAD state
ipv6: Use state_lock to protect ifa state
ipv6: Replace inet6_ifaddr->dead with state
cxgb4: notify upper drivers if the device is already up when they load
cxgb4: keep interrupts available when the ports are brought down
cxgb4: fix initial addition of MAC address
cnic: Return SPQ credit to bnx2x after ring setup and shutdown.
cnic: Convert cnic_local_flags to atomic ops.
can: Fix SJA1000 command register writes on SMP systems
bridge: fix build for CONFIG_SYSFS disabled
ARCNET: Limit com20020 PCI ID matches for SOHARD cards
...
Fix up various conflicts with pcmcia tree drivers/net/
{pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and
wireless/orinoco/spectrum_cs.c} and feature removal
(Documentation/feature-removal-schedule.txt).
Also fix a non-content conflict due to pm_qos_requirement getting
renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
Diffstat (limited to 'net/sched')
-rw-r--r-- | net/sched/act_api.c | 65 | ||||
-rw-r--r-- | net/sched/act_gact.c | 4 | ||||
-rw-r--r-- | net/sched/act_ipt.c | 9 | ||||
-rw-r--r-- | net/sched/act_mirred.c | 6 | ||||
-rw-r--r-- | net/sched/act_pedit.c | 11 | ||||
-rw-r--r-- | net/sched/act_simple.c | 4 | ||||
-rw-r--r-- | net/sched/cls_api.c | 30 | ||||
-rw-r--r-- | net/sched/cls_flow.c | 1 | ||||
-rw-r--r-- | net/sched/cls_u32.c | 10 | ||||
-rw-r--r-- | net/sched/ematch.c | 3 | ||||
-rw-r--r-- | net/sched/sch_api.c | 121 | ||||
-rw-r--r-- | net/sched/sch_generic.c | 21 | ||||
-rw-r--r-- | net/sched/sch_hfsc.c | 7 | ||||
-rw-r--r-- | net/sched/sch_ingress.c | 1 | ||||
-rw-r--r-- | net/sched/sch_mq.c | 1 | ||||
-rw-r--r-- | net/sched/sch_multiq.c | 1 | ||||
-rw-r--r-- | net/sched/sch_prio.c | 1 | ||||
-rw-r--r-- | net/sched/sch_red.c | 1 | ||||
-rw-r--r-- | net/sched/sch_sfq.c | 10 | ||||
-rw-r--r-- | net/sched/sch_tbf.c | 6 |
20 files changed, 180 insertions, 133 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index d8e0171d9a4..972378f47f3 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -153,7 +153,7 @@ int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb, } else if (type == RTM_GETACTION) { return tcf_dump_walker(skb, cb, a, hinfo); } else { - printk("tcf_generic_walker: unknown action %d\n", type); + WARN(1, "tcf_generic_walker: unknown action %d\n", type); return -EINVAL; } } @@ -403,8 +403,9 @@ void tcf_action_destroy(struct tc_action *act, int bind) module_put(a->ops->owner); act = act->next; kfree(a); - } else { /*FIXME: Remove later - catch insertion bugs*/ - printk("tcf_action_destroy: BUG? destroying NULL ops\n"); + } else { + /*FIXME: Remove later - catch insertion bugs*/ + WARN(1, "tcf_action_destroy: BUG? destroying NULL ops\n"); act = act->next; kfree(a); } @@ -668,7 +669,8 @@ nlmsg_failure: } static int -act_get_notify(u32 pid, struct nlmsghdr *n, struct tc_action *a, int event) +act_get_notify(struct net *net, u32 pid, struct nlmsghdr *n, + struct tc_action *a, int event) { struct sk_buff *skb; @@ -680,7 +682,7 @@ act_get_notify(u32 pid, struct nlmsghdr *n, struct tc_action *a, int event) return -EINVAL; } - return rtnl_unicast(skb, &init_net, pid); + return rtnl_unicast(skb, net, pid); } static struct tc_action * @@ -743,14 +745,15 @@ static struct tc_action *create_a(int i) act = kzalloc(sizeof(*act), GFP_KERNEL); if (act == NULL) { - printk("create_a: failed to alloc!\n"); + pr_debug("create_a: failed to alloc!\n"); return NULL; } act->order = i; return act; } -static int tca_action_flush(struct nlattr *nla, struct nlmsghdr *n, u32 pid) +static int tca_action_flush(struct net *net, struct nlattr *nla, + struct nlmsghdr *n, u32 pid) { struct sk_buff *skb; unsigned char *b; @@ -764,13 +767,13 @@ static int tca_action_flush(struct nlattr *nla, struct nlmsghdr *n, u32 pid) int err = -ENOMEM; if (a == NULL) { - printk("tca_action_flush: couldnt create tc_action\n"); + pr_debug("tca_action_flush: couldnt create tc_action\n"); return err; } skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); if (!skb) { - printk("tca_action_flush: failed skb alloc\n"); + pr_debug("tca_action_flush: failed skb alloc\n"); kfree(a); return err; } @@ -809,7 +812,7 @@ static int tca_action_flush(struct nlattr *nla, struct nlmsghdr *n, u32 pid) nlh->nlmsg_flags |= NLM_F_ROOT; module_put(a->ops->owner); kfree(a); - err = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); + err = rtnetlink_send(skb, net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); if (err > 0) return 0; @@ -826,7 +829,8 @@ noflush_out: } static int -tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event) +tca_action_gd(struct net *net, struct nlattr *nla, struct nlmsghdr *n, + u32 pid, int event) { int i, ret; struct nlattr *tb[TCA_ACT_MAX_PRIO+1]; @@ -838,7 +842,7 @@ tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event) if (event == RTM_DELACTION && n->nlmsg_flags&NLM_F_ROOT) { if (tb[1] != NULL) - return tca_action_flush(tb[1], n, pid); + return tca_action_flush(net, tb[1], n, pid); else return -EINVAL; } @@ -859,7 +863,7 @@ tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event) } if (event == RTM_GETACTION) - ret = act_get_notify(pid, n, head, event); + ret = act_get_notify(net, pid, n, head, event); else { /* delete */ struct sk_buff *skb; @@ -878,7 +882,7 @@ tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event) /* now do the delete */ tcf_action_destroy(head, 0); - ret = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, + ret = rtnetlink_send(skb, net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); if (ret > 0) return 0; @@ -889,8 +893,8 @@ err: return ret; } -static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, - u16 flags) +static int tcf_add_notify(struct net *net, struct tc_action *a, + u32 pid, u32 seq, int event, u16 flags) { struct tcamsg *t; struct nlmsghdr *nlh; @@ -923,7 +927,7 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, nlh->nlmsg_len = skb_tail_pointer(skb) - b; NETLINK_CB(skb).dst_group = RTNLGRP_TC; - err = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, flags&NLM_F_ECHO); + err = rtnetlink_send(skb, net, pid, RTNLGRP_TC, flags&NLM_F_ECHO); if (err > 0) err = 0; return err; @@ -936,7 +940,8 @@ nlmsg_failure: static int -tcf_action_add(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int ovr) +tcf_action_add(struct net *net, struct nlattr *nla, struct nlmsghdr *n, + u32 pid, int ovr) { int ret = 0; struct tc_action *act; @@ -954,7 +959,7 @@ tcf_action_add(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int ovr) /* dump then free all the actions after update; inserted policy * stays intact * */ - ret = tcf_add_notify(act, pid, seq, RTM_NEWACTION, n->nlmsg_flags); + ret = tcf_add_notify(net, act, pid, seq, RTM_NEWACTION, n->nlmsg_flags); for (a = act; a; a = act) { act = a->next; kfree(a); @@ -970,15 +975,12 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg) u32 pid = skb ? NETLINK_CB(skb).pid : 0; int ret = 0, ovr = 0; - if (!net_eq(net, &init_net)) - return -EINVAL; - ret = nlmsg_parse(n, sizeof(struct tcamsg), tca, TCA_ACT_MAX, NULL); if (ret < 0) return ret; if (tca[TCA_ACT_TAB] == NULL) { - printk("tc_ctl_action: received NO action attribs\n"); + pr_notice("tc_ctl_action: received NO action attribs\n"); return -EINVAL; } @@ -995,15 +997,17 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg) if (n->nlmsg_flags&NLM_F_REPLACE) ovr = 1; replay: - ret = tcf_action_add(tca[TCA_ACT_TAB], n, pid, ovr); + ret = tcf_action_add(net, tca[TCA_ACT_TAB], n, pid, ovr); if (ret == -EAGAIN) goto replay; break; case RTM_DELACTION: - ret = tca_action_gd(tca[TCA_ACT_TAB], n, pid, RTM_DELACTION); + ret = tca_action_gd(net, tca[TCA_ACT_TAB], n, + pid, RTM_DELACTION); break; case RTM_GETACTION: - ret = tca_action_gd(tca[TCA_ACT_TAB], n, pid, RTM_GETACTION); + ret = tca_action_gd(net, tca[TCA_ACT_TAB], n, + pid, RTM_GETACTION); break; default: BUG(); @@ -1043,7 +1047,6 @@ find_dump_kind(const struct nlmsghdr *n) static int tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) { - struct net *net = sock_net(skb->sk); struct nlmsghdr *nlh; unsigned char *b = skb_tail_pointer(skb); struct nlattr *nest; @@ -1053,11 +1056,8 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) struct tcamsg *t = (struct tcamsg *) NLMSG_DATA(cb->nlh); struct nlattr *kind = find_dump_kind(cb->nlh); - if (!net_eq(net, &init_net)) - return 0; - if (kind == NULL) { - printk("tc_dump_action: action bad kind\n"); + pr_info("tc_dump_action: action bad kind\n"); return 0; } @@ -1070,7 +1070,8 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) a.ops = a_o; if (a_o->walk == NULL) { - printk("tc_dump_action: %s !capable of dumping table\n", a_o->kind); + WARN(1, "tc_dump_action: %s !capable of dumping table\n", + a_o->kind); goto nla_put_failure; } diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index e7f796aec65..8406c665499 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -202,9 +202,9 @@ MODULE_LICENSE("GPL"); static int __init gact_init_module(void) { #ifdef CONFIG_GACT_PROB - printk("GACT probability on\n"); + printk(KERN_INFO "GACT probability on\n"); #else - printk("GACT probability NOT on\n"); + printk(KERN_INFO "GACT probability NOT on\n"); #endif return tcf_register_action(&act_gact_ops); } diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c index da27a170b6b..c7e59e6ec34 100644 --- a/net/sched/act_ipt.c +++ b/net/sched/act_ipt.c @@ -47,8 +47,8 @@ static int ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int target = xt_request_find_target(AF_INET, t->u.user.name, t->u.user.revision); - if (!target) - return -ENOENT; + if (IS_ERR(target)) + return PTR_ERR(target); t->u.kernel.target = target; par.table = table; @@ -199,7 +199,7 @@ static int tcf_ipt(struct sk_buff *skb, struct tc_action *a, { int ret = 0, result = 0; struct tcf_ipt *ipt = a->priv; - struct xt_target_param par; + struct xt_action_param par; if (skb_cloned(skb)) { if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) @@ -235,7 +235,8 @@ static int tcf_ipt(struct sk_buff *skb, struct tc_action *a, break; default: if (net_ratelimit()) - printk("Bogus netfilter code %d assume ACCEPT\n", ret); + pr_notice("tc filter: Bogus netfilter code" + " %d assume ACCEPT\n", ret); result = TC_POLICE_OK; break; } diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index c046682054e..c0b6863e3b8 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -164,8 +164,8 @@ static int tcf_mirred(struct sk_buff *skb, struct tc_action *a, dev = m->tcfm_dev; if (!(dev->flags & IFF_UP)) { if (net_ratelimit()) - printk("mirred to Houston: device %s is gone!\n", - dev->name); + pr_notice("tc mirred to Houston: device %s is gone!\n", + dev->name); goto out; } @@ -252,7 +252,7 @@ MODULE_LICENSE("GPL"); static int __init mirred_init_module(void) { - printk("Mirror/redirect action on\n"); + pr_info("Mirror/redirect action on\n"); return tcf_register_action(&act_mirred_ops); } diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index b7dcfedc802..fdbd0b7bd84 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -158,11 +158,13 @@ static int tcf_pedit(struct sk_buff *skb, struct tc_action *a, } if (offset % 4) { - printk("offset must be on 32 bit boundaries\n"); + pr_info("tc filter pedit" + " offset must be on 32 bit boundaries\n"); goto bad; } if (offset > 0 && offset > skb->len) { - printk("offset %d cant exceed pkt length %d\n", + pr_info("tc filter pedit" + " offset %d cant exceed pkt length %d\n", offset, skb->len); goto bad; } @@ -176,9 +178,8 @@ static int tcf_pedit(struct sk_buff *skb, struct tc_action *a, if (munged) skb->tc_verd = SET_TC_MUNGED(skb->tc_verd); goto done; - } else { - printk("pedit BUG: index %d\n", p->tcf_index); - } + } else + WARN(1, "pedit BUG: index %d\n", p->tcf_index); bad: p->tcf_qstats.overlimits++; diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c index 622ca809c15..1b4bc691d7d 100644 --- a/net/sched/act_simple.c +++ b/net/sched/act_simple.c @@ -49,7 +49,7 @@ static int tcf_simp(struct sk_buff *skb, struct tc_action *a, struct tcf_result * Example if this was the 3rd packet and the string was "hello" * then it would look like "hello_3" (without quotes) **/ - printk("simple: %s_%d\n", + pr_info("simple: %s_%d\n", (char *)d->tcfd_defdata, d->tcf_bstats.packets); spin_unlock(&d->tcf_lock); return d->tcf_action; @@ -205,7 +205,7 @@ static int __init simp_init_module(void) { int ret = tcf_register_action(&act_simp_ops); if (!ret) - printk("Simple TC action Loaded\n"); + pr_info("Simple TC action Loaded\n"); return ret; } diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index f082b27ff46..5fd0c28ef79 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -99,8 +99,9 @@ out: } 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. */ @@ -138,9 +139,6 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n, void *arg) 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); @@ -159,7 +157,7 @@ replay: /* 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; @@ -283,7 +281,7 @@ replay: *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; @@ -306,10 +304,10 @@ replay: 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; @@ -325,7 +323,7 @@ replay: *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); @@ -371,8 +369,9 @@ nla_put_failure: 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; @@ -386,7 +385,7 @@ static int tfilter_notify(struct sk_buff *oskb, struct nlmsghdr *n, 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); } @@ -419,12 +418,9 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb) 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) diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c index 6ed61b10e00..f73542d2cdd 100644 --- a/net/sched/cls_flow.c +++ b/net/sched/cls_flow.c @@ -602,7 +602,6 @@ static unsigned long flow_get(struct tcf_proto *tp, u32 handle) static void flow_put(struct tcf_proto *tp, unsigned long f) { - return; } static int flow_dump(struct tcf_proto *tp, unsigned long fh, diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index 17c5dfc6732..96275422c61 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -211,7 +211,7 @@ check_terminal: deadloop: if (net_ratelimit()) - printk("cls_u32: dead loop\n"); + printk(KERN_WARNING "cls_u32: dead loop\n"); return -1; } @@ -768,15 +768,15 @@ static struct tcf_proto_ops cls_u32_ops __read_mostly = { static int __init init_u32(void) { - printk("u32 classifier\n"); + pr_info("u32 classifier\n"); #ifdef CONFIG_CLS_U32_PERF - printk(" Performance counters on\n"); + pr_info(" Performance counters on\n"); #endif #ifdef CONFIG_NET_CLS_IND - printk(" input device check on \n"); + pr_info(" input device check on\n"); #endif #ifdef CONFIG_NET_CLS_ACT - printk(" Actions configured \n"); + pr_info(" Actions configured\n"); #endif return register_tcf_proto_ops(&cls_u32_ops); } diff --git a/net/sched/ematch.c b/net/sched/ematch.c index e782bdeedc5..5e37da961f8 100644 --- a/net/sched/ematch.c +++ b/net/sched/ematch.c @@ -527,7 +527,8 @@ pop_stack: stack_overflow: if (net_ratelimit()) - printk("Local stack overflow, increase NET_EMATCH_STACK\n"); + printk(KERN_WARNING "tc ematch: local stack overflow," + " increase NET_EMATCH_STACK\n"); return -1; } EXPORT_SYMBOL(__tcf_em_tree_match); diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 145268ca57c..fe35c1f338c 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -35,10 +35,12 @@ #include <net/netlink.h> #include <net/pkt_sched.h> -static int qdisc_notify(struct sk_buff *oskb, struct nlmsghdr *n, u32 clid, +static int qdisc_notify(struct net *net, struct sk_buff *oskb, + struct nlmsghdr *n, u32 clid, struct Qdisc *old, struct Qdisc *new); -static int tclass_notify(struct sk_buff *oskb, struct nlmsghdr *n, - struct Qdisc *q, unsigned long cl, int event); +static int tclass_notify(struct net *net, struct sk_buff *oskb, + struct nlmsghdr *n, struct Qdisc *q, + unsigned long cl, int event); /* @@ -639,11 +641,12 @@ void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n) } EXPORT_SYMBOL(qdisc_tree_decrease_qlen); -static void notify_and_destroy(struct sk_buff *skb, struct nlmsghdr *n, u32 clid, +static void notify_and_destroy(struct net *net, struct sk_buff *skb, + struct nlmsghdr *n, u32 clid, struct Qdisc *old, struct Qdisc *new) { if (new || old) - qdisc_notify(skb, n, clid, old, new); + qdisc_notify(net, skb, n, clid, old, new); if (old) qdisc_destroy(old); @@ -663,6 +666,7 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent, struct Qdisc *new, struct Qdisc *old) { struct Qdisc *q = old; + struct net *net = dev_net(dev); int err = 0; if (parent == NULL) { @@ -699,12 +703,13 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent, } if (!ingress) { - notify_and_destroy(skb, n, classid, dev->qdisc, new); + notify_and_destroy(net, skb, n, classid, + dev->qdisc, new); if (new && !new->ops->attach) atomic_inc(&new->refcnt); dev->qdisc = new ? : &noop_qdisc; } else { - notify_and_destroy(skb, n, classid, old, new); + notify_and_destroy(net, skb, n, classid, old, new); } if (dev->flags & IFF_UP) @@ -722,7 +727,7 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent, err = -ENOENT; } if (!err) - notify_and_destroy(skb, n, classid, old, new); + notify_and_destroy(net, skb, n, classid, old, new); } return err; } @@ -948,10 +953,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) struct Qdisc *p = NULL; int err; - if (!net_eq(net, &init_net)) - return -EINVAL; - - if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL) + if ((dev = __dev_get_by_index(net, tcm->tcm_ifindex)) == NULL) return -ENODEV; err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL); @@ -991,7 +993,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) if ((err = qdisc_graft(dev, p, skb, n, clid, NULL, q)) != 0) return err; } else { - qdisc_notify(skb, n, clid, NULL, q); + qdisc_notify(net, skb, n, clid, NULL, q); } return 0; } @@ -1010,16 +1012,13 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) struct Qdisc *q, *p; int err; - if (!net_eq(net, &init_net)) - return -EINVAL; - replay: /* Reinit, just in case something touches this. */ tcm = NLMSG_DATA(n); clid = tcm->tcm_parent; q = p = NULL; - if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL) + if ((dev = __dev_get_by_index(net, tcm->tcm_ifindex)) == NULL) return -ENODEV; err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL); @@ -1106,7 +1105,7 @@ replay: return -EINVAL; err = qdisc_change(q, tca); if (err == 0) - qdisc_notify(skb, n, clid, NULL, q); + qdisc_notify(net, skb, n, clid, NULL, q); return err; create_n_graft: @@ -1196,8 +1195,9 @@ nla_put_failure: return -1; } -static int qdisc_notify(struct sk_buff *oskb, struct nlmsghdr *n, - u32 clid, struct Qdisc *old, struct Qdisc *new) +static int qdisc_notify(struct net *net, struct sk_buff *oskb, + struct nlmsghdr *n, u32 clid, + struct Qdisc *old, struct Qdisc *new) { struct sk_buff *skb; u32 pid = oskb ? NETLINK_CB(oskb).pid : 0; @@ -1216,7 +1216,7 @@ static int qdisc_notify(struct sk_buff *oskb, struct nlmsghdr *n, } if (skb->len) - return rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); + return rtnetlink_send(skb, net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); err_out: kfree_skb(skb); @@ -1275,15 +1275,12 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb) int s_idx, s_q_idx; struct net_device *dev; - if (!net_eq(net, &init_net)) - return 0; - s_idx = cb->args[0]; s_q_idx = q_idx = cb->args[1]; rcu_read_lock(); idx = 0; - for_each_netdev_rcu(&init_net, dev) { + for_each_netdev_rcu(net, dev) { struct netdev_queue *dev_queue; if (idx < s_idx) @@ -1335,10 +1332,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg) u32 qid = TC_H_MAJ(clid); int err; - if (!net_eq(net, &init_net)) - return -EINVAL; - - if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL) + if ((dev = __dev_get_by_index(net, tcm->tcm_ifindex)) == NULL) return -ENODEV; err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL); @@ -1419,10 +1413,10 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg) if (cops->delete) err = cops->delete(q, cl); if (err == 0) - tclass_notify(skb, n, q, cl, RTM_DELTCLASS); + tclass_notify(net, skb, n, q, cl, RTM_DELTCLASS); goto out; case RTM_GETTCLASS: - err = tclass_notify(skb, n, q, cl, RTM_NEWTCLASS); + err = tclass_notify(net, skb, n, q, cl, RTM_NEWTCLASS); goto out; default: err = -EINVAL; @@ -1435,7 +1429,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg) if (cops->change) err = cops->change(q, clid, pid, tca, &new_cl); if (err == 0) - tclass_notify(skb, n, q, new_cl, RTM_NEWTCLASS); + tclass_notify(net, skb, n, q, new_cl, RTM_NEWTCLASS); out: if (cl) @@ -1487,8 +1481,9 @@ nla_put_failure: return -1; } -static int tclass_notify(struct sk_buff *oskb, struct nlmsghdr *n, - struct Qdisc *q, unsigned long cl, int event) +static int tclass_notify(struct net *net, struct sk_buff *oskb, + struct nlmsghdr *n, struct Qdisc *q, + unsigned long cl, int event) { struct sk_buff *skb; u32 pid = oskb ? NETLINK_CB(oskb).pid : 0; @@ -1502,7 +1497,7 @@ static int tclass_notify(struct sk_buff *oskb, struct nlmsghdr *n, return -EINVAL; } - return rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); + return rtnetlink_send(skb, net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); } struct qdisc_dump_args @@ -1577,12 +1572,9 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb) struct net_device *dev; int t, s_t; - if (!net_eq(net, &init_net)) - return 0; - if (cb->nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*tcm))) return 0; - if ((dev = dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL) + if ((dev = dev_get_by_index(net, tcm->tcm_ifindex)) == NULL) return 0; s_t = cb->args[0]; @@ -1645,9 +1637,12 @@ reclassify: tp = otp; if (verd++ >= MAX_REC_LOOP) { - printk("rule prio %u protocol %02x reclassify loop, " - "packet dropped\n", - tp->prio&0xffff, ntohs(tp->protocol)); + if (net_ratelimit()) + printk(KERN_NOTICE + "%s: packet reclassify loop" + " rule prio %u protocol %02x\n", + tp->q->ops->id, + tp->prio & 0xffff, ntohs(tp->protocol)); return TC_ACT_SHOT; } skb->tc_verd = SET_TC_VERD(skb->tc_verd, verd); @@ -1692,7 +1687,7 @@ static int psched_show(struct seq_file *seq, void *v) static int psched_open(struct inode *inode, struct file *file) { - return single_open(file, psched_show, PDE(inode)->data); + return single_open(file, psched_show, NULL); } static const struct file_operations psched_fops = { @@ -1702,15 +1697,53 @@ static const struct file_operations psched_fops = { .llseek = seq_lseek, .release = single_release, }; + +static int __net_init psched_net_init(struct net *net) +{ + struct proc_dir_entry *e; + + e = proc_net_fops_create(net, "psched", 0, &psched_fops); + if (e == NULL) + return -ENOMEM; + + return 0; +} + +static void __net_exit psched_net_exit(struct net *net) +{ + proc_net_remove(net, "psched"); +} +#else +static int __net_init psched_net_init(struct net *net) +{ + return 0; +} + +static void __net_exit psched_net_exit(struct net *net) +{ +} #endif +static struct pernet_operations psched_net_ops = { + .init = psched_net_init, + .exit = psched_net_exit, +}; + static int __init pktsched_init(void) { + int err; + + err = register_pernet_subsys(&psched_net_ops); + if (err) { + printk(KERN_ERR "pktsched_init: " + "cannot initialize per netns operations\n"); + return err; + } + register_qdisc(&pfifo_qdisc_ops); register_qdisc(&bfifo_qdisc_ops); register_qdisc(&pfifo_head_drop_qdisc_ops); register_qdisc(&mq_qdisc_ops); - 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); diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index ff4dd53eeff..a63029ef3ed 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -26,6 +26,7 @@ #include <linux/list.h> #include <linux/slab.h> #include <net/pkt_sched.h> +#include <net/dst.h> /* Main transmission queue. */ @@ -40,6 +41,7 @@ static inline int dev_requeue_skb(struct sk_buff *skb, struct Qdisc *q) { + skb_dst_force(skb); q->gso_skb = skb; q->qstats.requeues++; q->q.qlen++; /* it's still part of the queue */ @@ -94,7 +96,7 @@ static inline int handle_dev_cpu_collision(struct sk_buff *skb, * Another cpu is holding lock, requeue & delay xmits for * some time. */ - __get_cpu_var(netdev_rx_stat).cpu_collision++; + __get_cpu_var(softnet_data).cpu_collision++; ret = dev_requeue_skb(skb, q); } @@ -179,7 +181,7 @@ static inline int qdisc_restart(struct Qdisc *q) skb = dequeue_skb(q); if (unlikely(!skb)) return 0; - + WARN_ON_ONCE(skb_dst_is_noref(skb)); root_lock = qdisc_lock(q); dev = qdisc_dev(q); txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); @@ -529,7 +531,7 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, unsigned int size; int err = -ENOBUFS; - /* ensure that the Qdisc and the private data are 32-byte aligned */ + /* ensure that the Qdisc and the private data are 64-byte aligned */ size = QDISC_ALIGN(sizeof(*sch)); size += ops->priv_size + (QDISC_ALIGNTO - 1); @@ -591,6 +593,13 @@ void qdisc_reset(struct Qdisc *qdisc) } EXPORT_SYMBOL(qdisc_reset); +static void qdisc_rcu_free(struct rcu_head *head) +{ + struct Qdisc *qdisc = container_of(head, struct Qdisc, rcu_head); + + kfree((char *) qdisc - qdisc->padded); +} + void qdisc_destroy(struct Qdisc *qdisc) { const struct Qdisc_ops *ops = qdisc->ops; @@ -614,7 +623,11 @@ void qdisc_destroy(struct Qdisc *qdisc) dev_put(qdisc_dev(qdisc)); kfree_skb(qdisc->gso_skb); - kfree((char *) qdisc - qdisc->padded); + /* + * gen_estimator est_timer() might access qdisc->q.lock, + * wait a RCU grace period before freeing qdisc. + */ + call_rcu(&qdisc->rcu_head, qdisc_rcu_free); } EXPORT_SYMBOL(qdisc_destroy); diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index b38b39c6075..abd904be428 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -617,7 +617,6 @@ rtsc_min(struct runtime_sc *rtsc, struct internal_sc *isc, u64 x, u64 y) rtsc->y = y; rtsc->dx = dx; rtsc->dy = dy; - return; } static void @@ -1155,7 +1154,7 @@ static struct hfsc_class * hfsc_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr) { struct hfsc_sched *q = qdisc_priv(sch); - struct hfsc_class *cl; + struct hfsc_class *head, *cl; struct tcf_result res; struct tcf_proto *tcf; int result; @@ -1166,6 +1165,7 @@ hfsc_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr) return cl; *qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS; + head = &q->root; tcf = q->root.filter_list; while (tcf && (result = tc_classify(skb, tcf, &res)) >= 0) { #ifdef CONFIG_NET_CLS_ACT @@ -1180,6 +1180,8 @@ hfsc_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr) if ((cl = (struct hfsc_class *)res.class) == NULL) { if ((cl = hfsc_find_class(res.classid, sch)) == NULL) break; /* filter selected invalid classid */ + if (cl->level >= head->level) + break; /* filter may only point downwards */ } if (cl->level == 0) @@ -1187,6 +1189,7 @@ hfsc_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr) /* apply inner filter chain */ tcf = cl->filter_list; + head = cl; } /* classification failed, try default class */ diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c index a9e646bdb60..f10e34a6844 100644 --- a/net/sched/sch_ingress.c +++ b/net/sched/sch_ingress.c @@ -44,7 +44,6 @@ static void ingress_put(struct Qdisc *sch, unsigned long cl) static void ingress_walk(struct Qdisc *sch, struct qdisc_walker *walker) { - return; } static struct tcf_proto **ingress_find_tcf(struct Qdisc *sch, unsigned long cl) diff --git a/net/sched/sch_mq.c b/net/sched/sch_mq.c index b2aba3f5e6f..fe91e50f9d9 100644 --- a/net/sched/sch_mq.c +++ b/net/sched/sch_mq.c @@ -174,7 +174,6 @@ static unsigned long mq_get(struct Qdisc *sch, u32 classid) static void mq_put(struct Qdisc *sch, unsigned long cl) { - return; } static int mq_dump_class(struct Qdisc *sch, unsigned long cl, diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c index c50876cd870..6ae251279fc 100644 --- a/net/sched/sch_multiq.c +++ b/net/sched/sch_multiq.c @@ -340,7 +340,6 @@ static unsigned long multiq_bind(struct Qdisc *sch, unsigned long parent, static void multiq_put(struct Qdisc *q, unsigned long cl) { - return; } static int multiq_dump_class(struct Qdisc *sch, unsigned long cl, diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c index 81672e0c1b2..0748fb1e3a4 100644 --- a/net/sched/sch_prio.c +++ b/net/sched/sch_prio.c @@ -303,7 +303,6 @@ static unsigned long prio_bind(struct Qdisc *sch, unsigned long parent, u32 clas static void prio_put(struct Qdisc *q, unsigned long cl) { - return; } static int prio_dump_class(struct Qdisc *sch, unsigned long cl, struct sk_buff *skb, diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index 072cdf442f8..8d42bb3ba54 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -303,7 +303,6 @@ static unsigned long red_get(struct Qdisc *sch, u32 classid) static void red_put(struct Qdisc *sch, unsigned long arg) { - return; } static void red_walk(struct Qdisc *sch, struct qdisc_walker *walker) diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index c5a9ac56600..c65762823f5 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -123,8 +123,8 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb) case htons(ETH_P_IP): { const struct iphdr *iph = ip_hdr(skb); - h = iph->daddr; - h2 = iph->saddr ^ iph->protocol; + h = (__force u32)iph->daddr; + h2 = (__force u32)iph->saddr ^ iph->protocol; if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) && (iph->protocol == IPPROTO_TCP || iph->protocol == IPPROTO_UDP || @@ -138,8 +138,8 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb) case htons(ETH_P_IPV6): { struct ipv6hdr *iph = ipv6_hdr(skb); - h = iph->daddr.s6_addr32[3]; - h2 = iph->saddr.s6_addr32[3] ^ iph->nexthdr; + h = (__force u32)iph->daddr.s6_addr32[3]; + h2 = (__force u32)iph->saddr.s6_addr32[3] ^ iph->nexthdr; if (iph->nexthdr == IPPROTO_TCP || iph->nexthdr == IPPROTO_UDP || iph->nexthdr == IPPROTO_UDPLITE || @@ -150,7 +150,7 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb) break; } default: - h = (unsigned long)skb_dst(skb) ^ skb->protocol; + h = (unsigned long)skb_dst(skb) ^ (__force u32)skb->protocol; h2 = (unsigned long)skb->sk; } diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c index 8fb8107ab18..0991c640cd3 100644 --- a/net/sched/sch_tbf.c +++ b/net/sched/sch_tbf.c @@ -273,7 +273,11 @@ static int tbf_change(struct Qdisc* sch, struct nlattr *opt) if (max_size < 0) goto done; - if (qopt->limit > 0) { + if (q->qdisc != &noop_qdisc) { + err = fifo_set_limit(q->qdisc, qopt->limit); + if (err) + goto done; + } else if (qopt->limit > 0) { child = fifo_create_dflt(sch, &bfifo_qdisc_ops, qopt->limit); if (IS_ERR(child)) { err = PTR_ERR(child); |