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authorDavid S. Miller <davem@davemloft.net>2015-11-03 13:41:45 -0500
committerDavid S. Miller <davem@davemloft.net>2015-11-03 13:41:45 -0500
commit73186df8d7fa574345f0ad626ebe89649f8308a5 (patch)
tree9e6ed2c499cb5cbbcc79415602f9114503bb6931 /net/ipv4
parent0c63d80c3fac4e6eb0f01dff756e47bc7cd50092 (diff)
parentebac62fe3d24c0ce22dd83afa7b07d1a2aaef44d (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor overlapping changes in net/ipv4/ipmr.c, in 'net' we were fixing the "BH-ness" of the counter bumps whilst in 'net-next' the functions were modified to take an explicit 'net' parameter. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/fib_frontend.c13
-rw-r--r--net/ipv4/fib_semantics.c18
-rw-r--r--net/ipv4/ipmr.c6
3 files changed, 25 insertions, 12 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index e786873c89f2..cc8f3e506cde 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1112,9 +1112,10 @@ static void nl_fib_lookup_exit(struct net *net)
net->ipv4.fibnl = NULL;
}
-static void fib_disable_ip(struct net_device *dev, unsigned long event)
+static void fib_disable_ip(struct net_device *dev, unsigned long event,
+ bool force)
{
- if (fib_sync_down_dev(dev, event))
+ if (fib_sync_down_dev(dev, event, force))
fib_flush(dev_net(dev));
rt_cache_flush(dev_net(dev));
arp_ifdown(dev);
@@ -1142,7 +1143,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
/* Last address was deleted from this interface.
* Disable IP.
*/
- fib_disable_ip(dev, event);
+ fib_disable_ip(dev, event, true);
} else {
rt_cache_flush(dev_net(dev));
}
@@ -1159,7 +1160,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
unsigned int flags;
if (event == NETDEV_UNREGISTER) {
- fib_disable_ip(dev, event);
+ fib_disable_ip(dev, event, true);
rt_flush_dev(dev);
return NOTIFY_DONE;
}
@@ -1180,14 +1181,14 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
rt_cache_flush(net);
break;
case NETDEV_DOWN:
- fib_disable_ip(dev, event);
+ fib_disable_ip(dev, event, false);
break;
case NETDEV_CHANGE:
flags = dev_get_flags(dev);
if (flags & (IFF_RUNNING | IFF_LOWER_UP))
fib_sync_up(dev, RTNH_F_LINKDOWN);
else
- fib_sync_down_dev(dev, event);
+ fib_sync_down_dev(dev, event, false);
/* fall through */
case NETDEV_CHANGEMTU:
rt_cache_flush(net);
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index f30df0ee4f4d..3e87447e65c7 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1343,7 +1343,13 @@ int fib_sync_down_addr(struct net *net, __be32 local)
return ret;
}
-int fib_sync_down_dev(struct net_device *dev, unsigned long event)
+/* Event force Flags Description
+ * NETDEV_CHANGE 0 LINKDOWN Carrier OFF, not for scope host
+ * NETDEV_DOWN 0 LINKDOWN|DEAD Link down, not for scope host
+ * NETDEV_DOWN 1 LINKDOWN|DEAD Last address removed
+ * NETDEV_UNREGISTER 1 LINKDOWN|DEAD Device removed
+ */
+int fib_sync_down_dev(struct net_device *dev, unsigned long event, bool force)
{
int ret = 0;
int scope = RT_SCOPE_NOWHERE;
@@ -1352,8 +1358,7 @@ int fib_sync_down_dev(struct net_device *dev, unsigned long event)
struct hlist_head *head = &fib_info_devhash[hash];
struct fib_nh *nh;
- if (event == NETDEV_UNREGISTER ||
- event == NETDEV_DOWN)
+ if (force)
scope = -1;
hlist_for_each_entry(nh, head, nh_hash) {
@@ -1498,6 +1503,13 @@ int fib_sync_up(struct net_device *dev, unsigned int nh_flags)
if (!(dev->flags & IFF_UP))
return 0;
+ if (nh_flags & RTNH_F_DEAD) {
+ unsigned int flags = dev_get_flags(dev);
+
+ if (flags & (IFF_RUNNING | IFF_LOWER_UP))
+ nh_flags |= RTNH_F_LINKDOWN;
+ }
+
prev_fi = NULL;
hash = fib_devindex_hashfn(dev->ifindex);
head = &fib_info_devhash[hash];
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index fc42525d8694..92dd4b74d513 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1683,8 +1683,8 @@ static inline int ipmr_forward_finish(struct net *net, struct sock *sk,
{
struct ip_options *opt = &(IPCB(skb)->opt);
- IP_INC_STATS_BH(net, IPSTATS_MIB_OUTFORWDATAGRAMS);
- IP_ADD_STATS_BH(net, IPSTATS_MIB_OUTOCTETS, skb->len);
+ IP_INC_STATS(net, IPSTATS_MIB_OUTFORWDATAGRAMS);
+ IP_ADD_STATS(net, IPSTATS_MIB_OUTOCTETS, skb->len);
if (unlikely(opt->optlen))
ip_forward_options(skb);
@@ -1746,7 +1746,7 @@ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt,
* to blackhole.
*/
- IP_INC_STATS_BH(net, IPSTATS_MIB_FRAGFAILS);
+ IP_INC_STATS(net, IPSTATS_MIB_FRAGFAILS);
ip_rt_put(rt);
goto out_free;
}