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authorDavid S. Miller <davem@davemloft.net>2011-05-11 14:26:15 -0400
committerDavid S. Miller <davem@davemloft.net>2011-05-11 14:26:58 -0400
commit3c709f8fb43e07a0403bba4a8ca7ba00ab874994 (patch)
tree9efc1e2bf6930851f0224f525b6cde0f5297fa61 /net/ipv4
parent0074820978004cc484b132d7a9ce0df414660d9d (diff)
parent9bbc052d5e63512b0ce4e201ea97e12fba9fda82 (diff)
downloadlinux-3c709f8fb43e07a0403bba4a8ca7ba00ab874994.tar.bz2
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6
Conflicts: drivers/net/benet/be_main.c
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/tcp_cubic.c9
-rw-r--r--net/ipv4/xfrm4_output.c8
-rw-r--r--net/ipv4/xfrm4_state.c1
3 files changed, 14 insertions, 4 deletions
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index 34340c9c95fa..f376b05cca81 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -93,6 +93,7 @@ struct bictcp {
u32 ack_cnt; /* number of acks */
u32 tcp_cwnd; /* estimated tcp cwnd */
#define ACK_RATIO_SHIFT 4
+#define ACK_RATIO_LIMIT (32u << ACK_RATIO_SHIFT)
u16 delayed_ack; /* estimate the ratio of Packets/ACKs << 4 */
u8 sample_cnt; /* number of samples to decide curr_rtt */
u8 found; /* the exit point is found? */
@@ -398,8 +399,12 @@ static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt_us)
u32 delay;
if (icsk->icsk_ca_state == TCP_CA_Open) {
- cnt -= ca->delayed_ack >> ACK_RATIO_SHIFT;
- ca->delayed_ack += cnt;
+ u32 ratio = ca->delayed_ack;
+
+ ratio -= ca->delayed_ack >> ACK_RATIO_SHIFT;
+ ratio += cnt;
+
+ ca->delayed_ack = min(ratio, ACK_RATIO_LIMIT);
}
/* Some calls are for duplicates without timetamps */
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 571aa96a175c..2d51840e53a1 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -69,7 +69,7 @@ int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
}
EXPORT_SYMBOL(xfrm4_prepare_output);
-static int xfrm4_output_finish(struct sk_buff *skb)
+int xfrm4_output_finish(struct sk_buff *skb)
{
#ifdef CONFIG_NETFILTER
if (!skb_dst(skb)->xfrm) {
@@ -86,7 +86,11 @@ static int xfrm4_output_finish(struct sk_buff *skb)
int xfrm4_output(struct sk_buff *skb)
{
+ struct dst_entry *dst = skb_dst(skb);
+ struct xfrm_state *x = dst->xfrm;
+
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb,
- NULL, skb_dst(skb)->dev, xfrm4_output_finish,
+ NULL, dst->dev,
+ x->outer_mode->afinfo->output_finish,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index ea983ae96ae6..d9ac0a0058b5 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -78,6 +78,7 @@ static struct xfrm_state_afinfo xfrm4_state_afinfo = {
.init_tempsel = __xfrm4_init_tempsel,
.init_temprop = xfrm4_init_temprop,
.output = xfrm4_output,
+ .output_finish = xfrm4_output_finish,
.extract_input = xfrm4_extract_input,
.extract_output = xfrm4_extract_output,
.transport_finish = xfrm4_transport_finish,