aboutsummaryrefslogtreecommitdiff
path: root/net/ipv4
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2010-12-08 13:15:38 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-08 13:47:38 -0800
commitfe6c791570efe717946ea7b7dd50aec96b70d551 (patch)
tree1becb5e8aea7a9c9a7d78f987bd73b0a5d8ee434 /net/ipv4
parentf8bf5681cf15f77692c8ad8cb95d059ff7c622c9 (diff)
parentf19872575ff7819a3723154657a497d9bca66b33 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/wireless/ath/ath9k/ar9003_eeprom.c net/llc/af_llc.c
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/fib_trie.c2
-rw-r--r--net/ipv4/inet_hashtables.c3
-rw-r--r--net/ipv4/proc.c1
-rw-r--r--net/ipv4/sysctl_net_ipv4.c6
-rw-r--r--net/ipv4/tcp.c2
-rw-r--r--net/ipv4/tcp_ipv4.c4
-rw-r--r--net/ipv4/tcp_minisocks.c2
-rw-r--r--net/ipv4/tcp_output.c42
8 files changed, 36 insertions, 26 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 200eb538fbb..0f280348e0f 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -365,7 +365,7 @@ static struct tnode *tnode_alloc(size_t size)
if (size <= PAGE_SIZE)
return kzalloc(size, GFP_KERNEL);
else
- return __vmalloc(size, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
+ return vzalloc(size);
}
static void __tnode_vfree(struct work_struct *arg)
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 1b344f30b46..3c0369a3a66 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -133,8 +133,7 @@ int __inet_inherit_port(struct sock *sk, struct sock *child)
}
}
}
- sk_add_bind_node(child, &tb->owners);
- inet_csk(child)->icsk_bind_hash = tb;
+ inet_bind_hash(child, tb, port);
spin_unlock(&head->lock);
return 0;
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 1b48eb1ed45..b14ec7d03b6 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -253,6 +253,7 @@ static const struct snmp_mib snmp4_net_list[] = {
SNMP_MIB_ITEM("TCPMinTTLDrop", LINUX_MIB_TCPMINTTLDROP),
SNMP_MIB_ITEM("TCPDeferAcceptDrop", LINUX_MIB_TCPDEFERACCEPTDROP),
SNMP_MIB_ITEM("IPReversePathFilter", LINUX_MIB_IPRPFILTER),
+ SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW),
SNMP_MIB_SENTINEL
};
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index e91911d7aae..1b4ec21497a 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -26,6 +26,8 @@ static int zero;
static int tcp_retr1_max = 255;
static int ip_local_port_range_min[] = { 1, 1 };
static int ip_local_port_range_max[] = { 65535, 65535 };
+static int tcp_adv_win_scale_min = -31;
+static int tcp_adv_win_scale_max = 31;
/* Update system visible IP port range */
static void set_local_port_range(int range[2])
@@ -426,7 +428,9 @@ static struct ctl_table ipv4_table[] = {
.data = &sysctl_tcp_adv_win_scale,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &tcp_adv_win_scale_min,
+ .extra2 = &tcp_adv_win_scale_max,
},
{
.procname = "tcp_tw_reuse",
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 2bb46d55f40..6c11eece262 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2244,7 +2244,7 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
/* Values greater than interface MTU won't take effect. However
* at the point when this call is done we typically don't yet
* know which interface is going to be used */
- if (val < 64 || val > MAX_TCP_WINDOW) {
+ if (val < TCP_MIN_MSS || val > MAX_TCP_WINDOW) {
err = -EINVAL;
break;
}
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index dd555051ec8..4fc3387aa99 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2013,7 +2013,9 @@ get_req:
}
get_sk:
sk_nulls_for_each_from(sk, node) {
- if (sk->sk_family == st->family && net_eq(sock_net(sk), net)) {
+ if (!net_eq(sock_net(sk), net))
+ continue;
+ if (sk->sk_family == st->family) {
cur = sk;
goto out;
}
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 3527b51d615..80b1f80759a 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -392,7 +392,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
* socket up. We've got bigger problems than
* non-graceful socket closings.
*/
- LIMIT_NETDEBUG(KERN_INFO "TCP: time wait bucket table overflow\n");
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPTIMEWAITOVERFLOW);
}
tcp_update_metrics(sk);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 749b6498588..97041f24cd2 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -231,11 +231,10 @@ void tcp_select_initial_window(int __space, __u32 mss,
/* when initializing use the value from init_rcv_wnd
* rather than the default from above
*/
- if (init_rcv_wnd &&
- (*rcv_wnd > init_rcv_wnd * mss))
- *rcv_wnd = init_rcv_wnd * mss;
- else if (*rcv_wnd > init_cwnd * mss)
- *rcv_wnd = init_cwnd * mss;
+ if (init_rcv_wnd)
+ *rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
+ else
+ *rcv_wnd = min(*rcv_wnd, init_cwnd * mss);
}
/* Set the clamp no higher than max representable value */
@@ -386,27 +385,30 @@ struct tcp_out_options {
*/
static u8 tcp_cookie_size_check(u8 desired)
{
- if (desired > 0) {
+ int cookie_size;
+
+ if (desired > 0)
/* previously specified */
return desired;
- }
- if (sysctl_tcp_cookie_size <= 0) {
+
+ cookie_size = ACCESS_ONCE(sysctl_tcp_cookie_size);
+ if (cookie_size <= 0)
/* no default specified */
return 0;
- }
- if (sysctl_tcp_cookie_size <= TCP_COOKIE_MIN) {
+
+ if (cookie_size <= TCP_COOKIE_MIN)
/* value too small, specify minimum */
return TCP_COOKIE_MIN;
- }
- if (sysctl_tcp_cookie_size >= TCP_COOKIE_MAX) {
+
+ if (cookie_size >= TCP_COOKIE_MAX)
/* value too large, specify maximum */
return TCP_COOKIE_MAX;
- }
- if (0x1 & sysctl_tcp_cookie_size) {
+
+ if (cookie_size & 1)
/* 8-bit multiple, illegal, fix it */
- return (u8)(sysctl_tcp_cookie_size + 0x1);
- }
- return (u8)sysctl_tcp_cookie_size;
+ cookie_size++;
+
+ return (u8)cookie_size;
}
/* Write previously computed TCP options to the packet.
@@ -1516,6 +1518,7 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
struct tcp_sock *tp = tcp_sk(sk);
const struct inet_connection_sock *icsk = inet_csk(sk);
u32 send_win, cong_win, limit, in_flight;
+ int win_divisor;
if (TCP_SKB_CB(skb)->flags & TCPHDR_FIN)
goto send_now;
@@ -1547,13 +1550,14 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
if ((skb != tcp_write_queue_tail(sk)) && (limit >= skb->len))
goto send_now;
- if (sysctl_tcp_tso_win_divisor) {
+ win_divisor = ACCESS_ONCE(sysctl_tcp_tso_win_divisor);
+ if (win_divisor) {
u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);
/* If at least some fraction of a window is available,
* just use it.
*/
- chunk /= sysctl_tcp_tso_win_divisor;
+ chunk /= win_divisor;
if (limit >= chunk)
goto send_now;
} else {