Commit 3ee72ca9 authored by Linus Torvalds's avatar Linus Torvalds

Merge git://github.com/davem330/net

* git://github.com/davem330/net:
  net: fix typos in Documentation/networking/scaling.txt
  bridge: leave carrier on for empty bridge
  netfilter: Use proper rwlock init function
  tcp: properly update lost_cnt_hint during shifting
  tcp: properly handle md5sig_pool references
  macvlan/macvtap: Fix unicast between macvtap interfaces in bridge mode
parents 29cf7a30 186c6bbc
......@@ -27,7 +27,7 @@ applying a filter to each packet that assigns it to one of a small number
of logical flows. Packets for each flow are steered to a separate receive
queue, which in turn can be processed by separate CPUs. This mechanism is
generally known as “Receive-side Scaling” (RSS). The goal of RSS and
the other scaling techniques to increase performance uniformly.
the other scaling techniques is to increase performance uniformly.
Multi-queue distribution can also be used for traffic prioritization, but
that is not the focus of these techniques.
......@@ -186,10 +186,10 @@ are steered using plain RPS. Multiple table entries may point to the
same CPU. Indeed, with many flows and few CPUs, it is very likely that
a single application thread handles flows with many different flow hashes.
rps_sock_table is a global flow table that contains the *desired* CPU for
flows: the CPU that is currently processing the flow in userspace. Each
table value is a CPU index that is updated during calls to recvmsg and
sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage()
rps_sock_flow_table is a global flow table that contains the *desired* CPU
for flows: the CPU that is currently processing the flow in userspace.
Each table value is a CPU index that is updated during calls to recvmsg
and sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage()
and tcp_splice_read()).
When the scheduler moves a thread to a new CPU while it has outstanding
......
......@@ -239,7 +239,7 @@ static int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev)
dest = macvlan_hash_lookup(port, eth->h_dest);
if (dest && dest->mode == MACVLAN_MODE_BRIDGE) {
/* send to lowerdev first for its network taps */
vlan->forward(vlan->lowerdev, skb);
dev_forward_skb(vlan->lowerdev, skb);
return NET_XMIT_SUCCESS;
}
......
......@@ -91,7 +91,6 @@ static int br_dev_open(struct net_device *dev)
{
struct net_bridge *br = netdev_priv(dev);
netif_carrier_off(dev);
netdev_update_features(dev);
netif_start_queue(dev);
br_stp_enable_bridge(br);
......@@ -108,8 +107,6 @@ static int br_dev_stop(struct net_device *dev)
{
struct net_bridge *br = netdev_priv(dev);
netif_carrier_off(dev);
br_stp_disable_bridge(br);
br_multicast_stop(br);
......
......@@ -1389,9 +1389,7 @@ static int tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
BUG_ON(!pcount);
/* Tweak before seqno plays */
if (!tcp_is_fack(tp) && tcp_is_sack(tp) && tp->lost_skb_hint &&
!before(TCP_SKB_CB(tp->lost_skb_hint)->seq, TCP_SKB_CB(skb)->seq))
if (skb == tp->lost_skb_hint)
tp->lost_cnt_hint += pcount;
TCP_SKB_CB(prev)->end_seq += shifted;
......
......@@ -927,18 +927,21 @@ int tcp_v4_md5_do_add(struct sock *sk, __be32 addr,
}
sk_nocaps_add(sk, NETIF_F_GSO_MASK);
}
if (tcp_alloc_md5sig_pool(sk) == NULL) {
md5sig = tp->md5sig_info;
if (md5sig->entries4 == 0 &&
tcp_alloc_md5sig_pool(sk) == NULL) {
kfree(newkey);
return -ENOMEM;
}
md5sig = tp->md5sig_info;
if (md5sig->alloced4 == md5sig->entries4) {
keys = kmalloc((sizeof(*keys) *
(md5sig->entries4 + 1)), GFP_ATOMIC);
if (!keys) {
kfree(newkey);
tcp_free_md5sig_pool();
if (md5sig->entries4 == 0)
tcp_free_md5sig_pool();
return -ENOMEM;
}
......@@ -982,6 +985,7 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr)
kfree(tp->md5sig_info->keys4);
tp->md5sig_info->keys4 = NULL;
tp->md5sig_info->alloced4 = 0;
tcp_free_md5sig_pool();
} else if (tp->md5sig_info->entries4 != i) {
/* Need to do some manipulation */
memmove(&tp->md5sig_info->keys4[i],
......@@ -989,7 +993,6 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr)
(tp->md5sig_info->entries4 - i) *
sizeof(struct tcp4_md5sig_key));
}
tcp_free_md5sig_pool();
return 0;
}
}
......
......@@ -591,7 +591,8 @@ static int tcp_v6_md5_do_add(struct sock *sk, const struct in6_addr *peer,
}
sk_nocaps_add(sk, NETIF_F_GSO_MASK);
}
if (tcp_alloc_md5sig_pool(sk) == NULL) {
if (tp->md5sig_info->entries6 == 0 &&
tcp_alloc_md5sig_pool(sk) == NULL) {
kfree(newkey);
return -ENOMEM;
}
......@@ -600,8 +601,9 @@ static int tcp_v6_md5_do_add(struct sock *sk, const struct in6_addr *peer,
(tp->md5sig_info->entries6 + 1)), GFP_ATOMIC);
if (!keys) {
tcp_free_md5sig_pool();
kfree(newkey);
if (tp->md5sig_info->entries6 == 0)
tcp_free_md5sig_pool();
return -ENOMEM;
}
......@@ -647,6 +649,7 @@ static int tcp_v6_md5_do_del(struct sock *sk, const struct in6_addr *peer)
kfree(tp->md5sig_info->keys6);
tp->md5sig_info->keys6 = NULL;
tp->md5sig_info->alloced6 = 0;
tcp_free_md5sig_pool();
} else {
/* shrink the database */
if (tp->md5sig_info->entries6 != i)
......@@ -655,7 +658,6 @@ static int tcp_v6_md5_do_del(struct sock *sk, const struct in6_addr *peer)
(tp->md5sig_info->entries6 - i)
* sizeof (tp->md5sig_info->keys6[0]));
}
tcp_free_md5sig_pool();
return 0;
}
}
......
......@@ -3679,7 +3679,7 @@ int __net_init ip_vs_control_net_init(struct net *net)
int idx;
struct netns_ipvs *ipvs = net_ipvs(net);
ipvs->rs_lock = __RW_LOCK_UNLOCKED(ipvs->rs_lock);
rwlock_init(&ipvs->rs_lock);
/* Initialize rs_table */
for (idx = 0; idx < IP_VS_RTAB_SIZE; idx++)
......
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