diff options
Diffstat (limited to 'net/ipv4')
-rw-r--r-- | net/ipv4/Kconfig | 4 | ||||
-rw-r--r-- | net/ipv4/Makefile | 2 | ||||
-rw-r--r-- | net/ipv4/geneve_core.c (renamed from net/ipv4/geneve.c) | 10 | ||||
-rw-r--r-- | net/ipv4/inet_timewait_sock.c | 2 | ||||
-rw-r--r-- | net/ipv4/ip_output.c | 2 | ||||
-rw-r--r-- | net/ipv4/ip_tunnel_core.c | 18 | ||||
-rw-r--r-- | net/ipv4/ipip.c | 3 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_SYNPROXY.c | 4 | ||||
-rw-r--r-- | net/ipv4/tcp.c | 24 | ||||
-rw-r--r-- | net/ipv4/tcp_input.c | 18 | ||||
-rw-r--r-- | net/ipv4/tcp_output.c | 10 | ||||
-rw-r--r-- | net/ipv4/tcp_timer.c | 2 |
12 files changed, 48 insertions, 51 deletions
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig index bd2901604842..d83071dccd74 100644 --- a/net/ipv4/Kconfig +++ b/net/ipv4/Kconfig @@ -331,8 +331,8 @@ config NET_FOU_IP_TUNNELS When this option is enabled IP tunnels can be configured to use FOU or GUE encapsulation. -config GENEVE - tristate "Generic Network Virtualization Encapsulation (Geneve)" +config GENEVE_CORE + tristate "Generic Network Virtualization Encapsulation library" depends on INET select NET_UDP_TUNNEL ---help--- diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile index 518c04ed666e..b36236dd6014 100644 --- a/net/ipv4/Makefile +++ b/net/ipv4/Makefile @@ -56,7 +56,7 @@ obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o obj-$(CONFIG_MEMCG_KMEM) += tcp_memcontrol.o obj-$(CONFIG_NETLABEL) += cipso_ipv4.o -obj-$(CONFIG_GENEVE) += geneve.o +obj-$(CONFIG_GENEVE_CORE) += geneve_core.o obj-$(CONFIG_XFRM) += xfrm4_policy.o xfrm4_state.o xfrm4_input.o \ xfrm4_output.o xfrm4_protocol.o diff --git a/net/ipv4/geneve.c b/net/ipv4/geneve_core.c index 8986e63f3bda..311a4ba6950a 100644 --- a/net/ipv4/geneve.c +++ b/net/ipv4/geneve_core.c @@ -60,11 +60,6 @@ struct geneve_net { static int geneve_net_id; -static inline struct genevehdr *geneve_hdr(const struct sk_buff *skb) -{ - return (struct genevehdr *)(udp_hdr(skb) + 1); -} - static struct geneve_sock *geneve_find_sock(struct net *net, sa_family_t family, __be16 port) { @@ -435,7 +430,7 @@ static int __init geneve_init_module(void) if (rc) return rc; - pr_info("Geneve driver\n"); + pr_info("Geneve core logic\n"); return 0; } @@ -449,5 +444,4 @@ module_exit(geneve_cleanup_module); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jesse Gross <jesse@nicira.com>"); -MODULE_DESCRIPTION("Driver for GENEVE encapsulated traffic"); -MODULE_ALIAS_RTNL_LINK("geneve"); +MODULE_DESCRIPTION("Driver library for GENEVE encapsulated traffic"); diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index 00ec8d5d7e7e..2ffbd16b79e0 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -170,7 +170,7 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, } EXPORT_SYMBOL_GPL(__inet_twsk_hashdance); -void tw_timer_handler(unsigned long data) +static void tw_timer_handler(unsigned long data) { struct inet_timewait_sock *tw = (struct inet_timewait_sock *)data; diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index c65b93a7b711..2acc5dc32807 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -91,7 +91,7 @@ void ip_send_check(struct iphdr *iph) } EXPORT_SYMBOL(ip_send_check); -int __ip_local_out_sk(struct sock *sk, struct sk_buff *skb) +static int __ip_local_out_sk(struct sock *sk, struct sk_buff *skb) { struct iphdr *iph = ip_hdr(skb); diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c index 3998b1822d85..6a51a71a6c67 100644 --- a/net/ipv4/ip_tunnel_core.c +++ b/net/ipv4/ip_tunnel_core.c @@ -165,6 +165,8 @@ struct rtnl_link_stats64 *ip_tunnel_get_stats64(struct net_device *dev, { int i; + netdev_stats_to_stats64(tot, &dev->stats); + for_each_possible_cpu(i) { const struct pcpu_sw_netstats *tstats = per_cpu_ptr(dev->tstats, i); @@ -185,22 +187,6 @@ struct rtnl_link_stats64 *ip_tunnel_get_stats64(struct net_device *dev, tot->tx_bytes += tx_bytes; } - tot->multicast = dev->stats.multicast; - - tot->rx_crc_errors = dev->stats.rx_crc_errors; - tot->rx_fifo_errors = dev->stats.rx_fifo_errors; - tot->rx_length_errors = dev->stats.rx_length_errors; - tot->rx_frame_errors = dev->stats.rx_frame_errors; - tot->rx_errors = dev->stats.rx_errors; - - tot->tx_fifo_errors = dev->stats.tx_fifo_errors; - tot->tx_carrier_errors = dev->stats.tx_carrier_errors; - tot->tx_dropped = dev->stats.tx_dropped; - tot->tx_aborted_errors = dev->stats.tx_aborted_errors; - tot->tx_errors = dev->stats.tx_errors; - - tot->collisions = dev->stats.collisions; - return tot; } EXPORT_SYMBOL_GPL(ip_tunnel_get_stats64); diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index ff96396ebec5..254238daf58b 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -251,7 +251,8 @@ ipip_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return -EINVAL; } - p.i_key = p.o_key = p.i_flags = p.o_flags = 0; + p.i_key = p.o_key = 0; + p.i_flags = p.o_flags = 0; if (p.iph.ttl) p.iph.frag_off |= htons(IP_DF); diff --git a/net/ipv4/netfilter/ipt_SYNPROXY.c b/net/ipv4/netfilter/ipt_SYNPROXY.c index e9e67793055f..fe8cc183411e 100644 --- a/net/ipv4/netfilter/ipt_SYNPROXY.c +++ b/net/ipv4/netfilter/ipt_SYNPROXY.c @@ -18,7 +18,7 @@ #include <net/netfilter/nf_conntrack_synproxy.h> static struct iphdr * -synproxy_build_ip(struct sk_buff *skb, u32 saddr, u32 daddr) +synproxy_build_ip(struct sk_buff *skb, __be32 saddr, __be32 daddr) { struct iphdr *iph; @@ -220,7 +220,7 @@ synproxy_send_client_ack(const struct synproxy_net *snet, nth->ack_seq = th->ack_seq; tcp_flag_word(nth) = TCP_FLAG_ACK; nth->doff = tcp_hdr_size / 4; - nth->window = ntohs(htons(th->window) >> opts->wscale); + nth->window = htons(ntohs(th->window) >> opts->wscale); nth->check = 0; nth->urg_ptr = 0; diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index ecccfdc50d76..c724195e5862 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -815,9 +815,20 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp) /* The TCP header must be at least 32-bit aligned. */ size = ALIGN(size, 4); + if (unlikely(tcp_under_memory_pressure(sk))) + sk_mem_reclaim_partial(sk); + skb = alloc_skb_fclone(size + sk->sk_prot->max_header, gfp); - if (skb) { - if (sk_wmem_schedule(sk, skb->truesize)) { + if (likely(skb)) { + bool mem_schedule; + + if (skb_queue_len(&sk->sk_write_queue) == 0) { + mem_schedule = true; + sk_forced_mem_schedule(sk, skb->truesize); + } else { + mem_schedule = sk_wmem_schedule(sk, skb->truesize); + } + if (likely(mem_schedule)) { skb_reserve(skb, sk->sk_prot->max_header); /* * Make sure that we have exactly size bytes @@ -3057,11 +3068,12 @@ __setup("thash_entries=", set_thash_entries); static void __init tcp_init_mem(void) { - unsigned long limit = nr_free_buffer_pages() / 8; + unsigned long limit = nr_free_buffer_pages() / 16; + limit = max(limit, 128UL); - sysctl_tcp_mem[0] = limit / 4 * 3; - sysctl_tcp_mem[1] = limit; - sysctl_tcp_mem[2] = sysctl_tcp_mem[0] * 2; + sysctl_tcp_mem[0] = limit / 4 * 3; /* 4.68 % */ + sysctl_tcp_mem[1] = limit; /* 6.25 % */ + sysctl_tcp_mem[2] = sysctl_tcp_mem[0] * 2; /* 9.37 % */ } void __init tcp_init(void) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index cf8b20ff6658..40c435997e54 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -359,7 +359,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb) /* Check #1 */ if (tp->rcv_ssthresh < tp->window_clamp && (int)tp->rcv_ssthresh < tcp_space(sk) && - !sk_under_memory_pressure(sk)) { + !tcp_under_memory_pressure(sk)) { int incr; /* Check #2. Increase window, if skb with such overhead @@ -446,7 +446,7 @@ static void tcp_clamp_window(struct sock *sk) if (sk->sk_rcvbuf < sysctl_tcp_rmem[2] && !(sk->sk_userlocks & SOCK_RCVBUF_LOCK) && - !sk_under_memory_pressure(sk) && + !tcp_under_memory_pressure(sk) && sk_memory_allocated(sk) < sk_prot_mem_limits(sk, 0)) { sk->sk_rcvbuf = min(atomic_read(&sk->sk_rmem_alloc), sysctl_tcp_rmem[2]); @@ -4507,10 +4507,12 @@ static void tcp_data_queue(struct sock *sk, struct sk_buff *skb) if (eaten <= 0) { queue_and_out: - if (eaten < 0 && - tcp_try_rmem_schedule(sk, skb, skb->truesize)) - goto drop; - + if (eaten < 0) { + if (skb_queue_len(&sk->sk_receive_queue) == 0) + sk_forced_mem_schedule(sk, skb->truesize); + else if (tcp_try_rmem_schedule(sk, skb, skb->truesize)) + goto drop; + } eaten = tcp_queue_rcv(sk, skb, 0, &fragstolen); } tcp_rcv_nxt_update(tp, TCP_SKB_CB(skb)->end_seq); @@ -4781,7 +4783,7 @@ static int tcp_prune_queue(struct sock *sk) if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) tcp_clamp_window(sk); - else if (sk_under_memory_pressure(sk)) + else if (tcp_under_memory_pressure(sk)) tp->rcv_ssthresh = min(tp->rcv_ssthresh, 4U * tp->advmss); tcp_collapse_ofo_queue(sk); @@ -4825,7 +4827,7 @@ static bool tcp_should_expand_sndbuf(const struct sock *sk) return false; /* If we are under global TCP memory pressure, do not expand. */ - if (sk_under_memory_pressure(sk)) + if (tcp_under_memory_pressure(sk)) return false; /* If we are under soft global TCP memory pressure, do not expand. */ diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 7386d32cd670..08c2cc40b26d 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2392,7 +2392,7 @@ u32 __tcp_select_window(struct sock *sk) if (free_space < (full_space >> 1)) { icsk->icsk_ack.quick = 0; - if (sk_under_memory_pressure(sk)) + if (tcp_under_memory_pressure(sk)) tp->rcv_ssthresh = min(tp->rcv_ssthresh, 4U * tp->advmss); @@ -2816,8 +2816,10 @@ begin_fwd: * connection tear down and (memory) recovery. * Otherwise tcp_send_fin() could be tempted to either delay FIN * or even be forced to close flow without any FIN. + * In general, we want to allow one skb per socket to avoid hangs + * with edge trigger epoll() */ -static void sk_forced_wmem_schedule(struct sock *sk, int size) +void sk_forced_mem_schedule(struct sock *sk, int size) { int amt, status; @@ -2841,7 +2843,7 @@ void tcp_send_fin(struct sock *sk) * Note: in the latter case, FIN packet will be sent after a timeout, * as TCP stack thinks it has already been transmitted. */ - if (tskb && (tcp_send_head(sk) || sk_under_memory_pressure(sk))) { + if (tskb && (tcp_send_head(sk) || tcp_under_memory_pressure(sk))) { coalesce: TCP_SKB_CB(tskb)->tcp_flags |= TCPHDR_FIN; TCP_SKB_CB(tskb)->end_seq++; @@ -2864,7 +2866,7 @@ coalesce: return; } skb_reserve(skb, MAX_TCP_HEADER); - sk_forced_wmem_schedule(sk, skb->truesize); + sk_forced_mem_schedule(sk, skb->truesize); /* FIN eats a sequence byte, write_seq advanced by tcp_queue_skb(). */ tcp_init_nondata_skb(skb, tp->write_seq, TCPHDR_ACK | TCPHDR_FIN); diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 65bf670e8714..5b752f58a900 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -247,7 +247,7 @@ void tcp_delack_timer_handler(struct sock *sk) } out: - if (sk_under_memory_pressure(sk)) + if (tcp_under_memory_pressure(sk)) sk_mem_reclaim(sk); } |