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Commit d46b1a35 authored by Linus Torvalds's avatar Linus Torvalds
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Merge bk://kernel.bkbits.net/davem/net-2.6 

into ppc970.osdl.org:/home/torvalds/v2.6/linux
parents e5f39047 8ed421dc
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Showing with 89 additions and 64 deletions
net/core/skbuff.c
View file @ d46b1a35
......@@ -1350,7 +1350,7 @@ void skb_add_mtu(int mtu)
}
#endif
static void inline skb_split_inside_header(struct sk_buff *skb,
static inline void skb_split_inside_header(struct sk_buff *skb,
struct sk_buff* skb1,
const u32 len, const int pos)
{
......@@ -1371,7 +1371,7 @@ static void inline skb_split_inside_header(struct sk_buff *skb,
skb->tail = skb->data + len;
}
static void inline skb_split_no_header(struct sk_buff *skb,
static inline void skb_split_no_header(struct sk_buff *skb,
struct sk_buff* skb1,
const u32 len, int pos)
{
......
net/decnet/af_decnet.c
View file @ d46b1a35
......@@ -1075,7 +1075,7 @@ static int dn_accept(struct socket *sock, struct socket *newsock, int flags)
skb = dn_wait_for_connect(sk, &timeo);
if (IS_ERR(skb)) {
release_sock(sk);
return PTR_ERR(sk);
return PTR_ERR(skb);
}
}
......
net/ipv4/ipconfig.c
View file @ d46b1a35
......@@ -1102,8 +1102,8 @@ static int __init ic_dynamic(void)
jiff = jiffies + (d->next ? CONF_INTER_TIMEOUT : timeout);
while (time_before(jiffies, jiff) && !ic_got_reply) {
barrier();
cpu_relax();
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
}
#ifdef IPCONFIG_DHCP
/* DHCP isn't done until we get a DHCPACK. */
......@@ -1245,7 +1245,6 @@ u32 __init root_nfs_parse_addr(char *name)
static int __init ip_auto_config(void)
{
unsigned long jiff;
u32 addr;
#ifdef CONFIG_PROC_FS
......@@ -1260,18 +1259,16 @@ static int __init ip_auto_config(void)
try_try_again:
#endif
/* Give hardware a chance to settle */
jiff = jiffies + CONF_PRE_OPEN;
while (time_before(jiffies, jiff))
cpu_relax();
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(CONF_PRE_OPEN);
/* Setup all network devices */
if (ic_open_devs() < 0)
return -1;
/* Give drivers a chance to settle */
jiff = jiffies + CONF_POST_OPEN;
while (time_before(jiffies, jiff))
cpu_relax();
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(CONF_POST_OPEN);
/*
* If the config information is insufficient (e.g., our IP address or
......
net/ipv6/addrconf.c
View file @ d46b1a35
......@@ -137,6 +137,7 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags);
static void addrconf_dad_timer(unsigned long data);
static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
static void addrconf_rs_timer(unsigned long data);
static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
static void inet6_prefix_notify(int event, struct inet6_dev *idev,
......@@ -486,10 +487,15 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
struct inet6_ifaddr *ifa = NULL;
struct rt6_info *rt;
int hash;
static spinlock_t lock = SPIN_LOCK_UNLOCKED;
int err = 0;
spin_lock_bh(&lock);
read_lock_bh(&addrconf_lock);
if (idev->dead) {
err = -ENODEV; /*XXX*/
goto out2;
}
write_lock(&addrconf_hash_lock);
/* Ignore adding duplicate addresses on an interface */
if (ipv6_chk_same_addr(addr, idev->dev)) {
......@@ -523,13 +529,6 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
ifa->flags = flags | IFA_F_TENTATIVE;
ifa->cstamp = ifa->tstamp = jiffies;
read_lock(&addrconf_lock);
if (idev->dead) {
read_unlock(&addrconf_lock);
err = -ENODEV; /*XXX*/
goto out;
}
inet6_ifa_count++;
ifa->idev = idev;
in6_dev_hold(idev);
......@@ -539,35 +538,30 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
/* Add to big hash table */
hash = ipv6_addr_hash(addr);
write_lock_bh(&addrconf_hash_lock);
ifa->lst_next = inet6_addr_lst[hash];
inet6_addr_lst[hash] = ifa;
in6_ifa_hold(ifa);
write_unlock_bh(&addrconf_hash_lock);
write_unlock(&addrconf_hash_lock);
write_lock_bh(&idev->lock);
write_lock(&idev->lock);
/* Add to inet6_dev unicast addr list. */
ifa->if_next = idev->addr_list;
idev->addr_list = ifa;
#ifdef CONFIG_IPV6_PRIVACY
ifa->regen_count = 0;
if (ifa->flags&IFA_F_TEMPORARY) {
ifa->tmp_next = idev->tempaddr_list;
idev->tempaddr_list = ifa;
in6_ifa_hold(ifa);
} else {
ifa->tmp_next = NULL;
}
#endif
ifa->rt = rt;
in6_ifa_hold(ifa);
write_unlock_bh(&idev->lock);
read_unlock(&addrconf_lock);
out:
spin_unlock_bh(&lock);
write_unlock(&idev->lock);
out2:
read_unlock_bh(&addrconf_lock);
if (unlikely(err == 0))
notifier_call_chain(&inet6addr_chain, NETDEV_UP, ifa);
......@@ -577,6 +571,9 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
}
return ifa;
out:
write_unlock(&addrconf_hash_lock);
goto out2;
}
/* This function wants to get referenced ifp and releases it before return */
......@@ -645,13 +642,14 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
#ifdef CONFIG_IPV6_PRIVACY
static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *ift)
{
struct inet6_dev *idev;
struct inet6_dev *idev = ifp->idev;
struct in6_addr addr, *tmpaddr;
unsigned long tmp_prefered_lft, tmp_valid_lft;
unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp;
int tmp_plen;
int ret = 0;
int max_addresses;
write_lock(&idev->lock);
if (ift) {
spin_lock_bh(&ift->lock);
memcpy(&addr.s6_addr[8], &ift->addr.s6_addr[8], 8);
......@@ -661,40 +659,35 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i
tmpaddr = NULL;
}
retry:
spin_lock_bh(&ifp->lock);
in6_ifa_hold(ifp);
idev = ifp->idev;
in6_dev_hold(idev);
memcpy(addr.s6_addr, ifp->addr.s6_addr, 8);
write_lock(&idev->lock);
if (idev->cnf.use_tempaddr <= 0) {
write_unlock(&idev->lock);
spin_unlock_bh(&ifp->lock);
printk(KERN_INFO
"ipv6_create_tempaddr(): use_tempaddr is disabled.\n");
in6_dev_put(idev);
in6_ifa_put(ifp);
ret = -1;
goto out;
}
spin_lock_bh(&ifp->lock);
if (ifp->regen_count++ >= idev->cnf.regen_max_retry) {
idev->cnf.use_tempaddr = -1; /*XXX*/
write_unlock(&idev->lock);
spin_unlock_bh(&ifp->lock);
write_unlock(&idev->lock);
printk(KERN_WARNING
"ipv6_create_tempaddr(): regeneration time exceeded. disabled temporary address support.\n");
in6_dev_put(idev);
in6_ifa_put(ifp);
ret = -1;
goto out;
}
in6_ifa_hold(ifp);
memcpy(addr.s6_addr, ifp->addr.s6_addr, 8);
if (__ipv6_try_regen_rndid(idev, tmpaddr) < 0) {
write_unlock(&idev->lock);
spin_unlock_bh(&ifp->lock);
write_unlock(&idev->lock);
printk(KERN_WARNING
"ipv6_create_tempaddr(): regeneration of randomized interface id failed.\n");
in6_dev_put(idev);
in6_ifa_put(ifp);
in6_dev_put(idev);
ret = -1;
goto out;
}
......@@ -707,27 +700,33 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i
idev->cnf.temp_prefered_lft - desync_factor / HZ);
tmp_plen = ifp->prefix_len;
max_addresses = idev->cnf.max_addresses;
write_unlock(&idev->lock);
tmp_cstamp = ifp->cstamp;
tmp_tstamp = ifp->tstamp;
spin_unlock_bh(&ifp->lock);
write_unlock(&idev->lock);
ift = !max_addresses ||
ipv6_count_addresses(idev) < max_addresses ?
ipv6_add_addr(idev, &addr, tmp_plen,
ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK, IFA_F_TEMPORARY) : NULL;
if (!ift || IS_ERR(ift)) {
in6_dev_put(idev);
in6_ifa_put(ifp);
in6_dev_put(idev);
printk(KERN_INFO
"ipv6_create_tempaddr(): retry temporary address regeneration.\n");
tmpaddr = &addr;
write_lock(&idev->lock);
goto retry;
}
spin_lock_bh(&ift->lock);
ift->ifpub = ifp;
ift->valid_lft = tmp_valid_lft;
ift->prefered_lft = tmp_prefered_lft;
ift->cstamp = ifp->cstamp;
ift->tstamp = ifp->tstamp;
ift->cstamp = tmp_cstamp;
ift->tstamp = tmp_tstamp;
spin_unlock_bh(&ift->lock);
addrconf_dad_start(ift, 0);
in6_ifa_put(ift);
in6_dev_put(idev);
......@@ -938,14 +937,12 @@ int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev)
struct inet6_ifaddr * ifp;
u8 hash = ipv6_addr_hash(addr);
read_lock_bh(&addrconf_hash_lock);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev)
break;
}
}
read_unlock_bh(&addrconf_hash_lock);
return ifp != NULL;
}
......@@ -2049,7 +2046,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
addrconf_del_timer(ifa);
write_unlock_bh(&idev->lock);
ipv6_ifa_notify(RTM_DELADDR, ifa);
__ipv6_ifa_notify(RTM_DELADDR, ifa);
in6_ifa_put(ifa);
write_lock_bh(&idev->lock);
......@@ -2129,11 +2126,10 @@ static void addrconf_rs_timer(unsigned long data)
*/
static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags)
{
struct net_device *dev;
struct inet6_dev *idev = ifp->idev;
struct net_device *dev = idev->dev;
unsigned long rand_num;
dev = ifp->idev->dev;
addrconf_join_solict(dev, &ifp->addr);
if (ifp->prefix_len != 128 && (ifp->flags&IFA_F_PERMANENT))
......@@ -2141,31 +2137,43 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags)
flags);
net_srandom(ifp->addr.s6_addr32[3]);
rand_num = net_random() % (ifp->idev->cnf.rtr_solicit_delay ? : 1);
rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);
read_lock_bh(&idev->lock);
if (ifp->dead)
goto out;
spin_lock_bh(&ifp->lock);
if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
!(ifp->flags&IFA_F_TENTATIVE)) {
ifp->flags &= ~IFA_F_TENTATIVE;
spin_unlock_bh(&ifp->lock);
read_unlock_bh(&idev->lock);
addrconf_dad_completed(ifp);
return;
}
ifp->probes = ifp->idev->cnf.dad_transmits;
ifp->probes = idev->cnf.dad_transmits;
addrconf_mod_timer(ifp, AC_DAD, rand_num);
spin_unlock_bh(&ifp->lock);
out:
read_unlock_bh(&idev->lock);
}
static void addrconf_dad_timer(unsigned long data)
{
struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data;
struct inet6_dev *idev = ifp->idev;
struct in6_addr unspec;
struct in6_addr mcaddr;
read_lock_bh(&idev->lock);
if (idev->dead) {
read_unlock_bh(&idev->lock);
goto out;
}
spin_lock_bh(&ifp->lock);
if (ifp->probes == 0) {
/*
......@@ -2174,22 +2182,23 @@ static void addrconf_dad_timer(unsigned long data)
ifp->flags &= ~IFA_F_TENTATIVE;
spin_unlock_bh(&ifp->lock);
read_unlock_bh(&idev->lock);
addrconf_dad_completed(ifp);
in6_ifa_put(ifp);
return;
goto out;
}
ifp->probes--;
addrconf_mod_timer(ifp, AC_DAD, ifp->idev->nd_parms->retrans_time);
spin_unlock_bh(&ifp->lock);
read_unlock_bh(&idev->lock);
/* send a neighbour solicitation for our addr */
memset(&unspec, 0, sizeof(unspec));
addrconf_addr_solict_mult(&ifp->addr, &mcaddr);
ndisc_send_ns(ifp->idev->dev, NULL, &ifp->addr, &mcaddr, &unspec);
out:
in6_ifa_put(ifp);
}
......@@ -2980,7 +2989,7 @@ static struct rtnetlink_link inet6_rtnetlink_table[RTM_MAX - RTM_BASE + 1] = {
.dumpit = inet6_dump_fib, },
};
static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
{
inet6_ifa_notify(event ? : RTM_NEWADDR, ifp);
......@@ -3005,6 +3014,14 @@ static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
}
}
static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
{
read_lock_bh(&addrconf_lock);
if (likely(ifp->idev->dead == 0))
__ipv6_ifa_notify(event, ifp);
read_unlock_bh(&addrconf_lock);
}
#ifdef CONFIG_SYSCTL
static
......
net/ipv6/route.c
View file @ d46b1a35
......@@ -476,13 +476,19 @@ void ip6_route_input(struct sk_buff *skb)
BACKTRACK();
if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
struct rt6_info *nrt;
dst_hold(&rt->u.dst);
read_unlock_bh(&rt6_lock);
rt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
&skb->nh.ipv6h->saddr);
nrt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
&skb->nh.ipv6h->saddr);
dst_release(&rt->u.dst);
rt = nrt;
if (rt->u.dst.error != -EEXIST || --attempts <= 0)
goto out2;
/* Race condition! In the gap, when rt6_lock was
released someone could insert this route. Relookup.
*/
......@@ -531,9 +537,14 @@ struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl)
}
if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
struct rt6_info *nrt;
dst_hold(&rt->u.dst);
read_unlock_bh(&rt6_lock);
rt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src);
nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src);
dst_release(&rt->u.dst);
rt = nrt;
if (rt->u.dst.error != -EEXIST || --attempts <= 0)
goto out2;
......
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