diff options
author | David S. Miller <davem@davemloft.net> | 2008-12-06 01:54:40 -0500 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-12-06 01:54:40 -0500 |
commit | 730c30ec646bd252a9448a66ecd51d794853513f (patch) | |
tree | c0d413860f9d8bf37374f17cfabb4911143465d7 /net/ipv4 | |
parent | 726e07a8a38168266ac95d87736f9501a2d9e7b2 (diff) | |
parent | 0a0755c9fe47dc9f8271935909c66096e43efbfe (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/iwlwifi/iwl-core.c
drivers/net/wireless/iwlwifi/iwl-sta.c
Diffstat (limited to 'net/ipv4')
-rw-r--r-- | net/ipv4/tcp_output.c | 22 | ||||
-rw-r--r-- | net/ipv4/tcp_vegas.c | 2 |
2 files changed, 12 insertions, 12 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 80147ba44141..59505ce0c8fd 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c | |||
@@ -722,8 +722,7 @@ static void tcp_queue_skb(struct sock *sk, struct sk_buff *skb) | |||
722 | static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, | 722 | static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, |
723 | unsigned int mss_now) | 723 | unsigned int mss_now) |
724 | { | 724 | { |
725 | if (skb->len <= mss_now || !sk_can_gso(sk) || | 725 | if (skb->len <= mss_now || !sk_can_gso(sk)) { |
726 | tcp_urg_mode(tcp_sk(sk))) { | ||
727 | /* Avoid the costly divide in the normal | 726 | /* Avoid the costly divide in the normal |
728 | * non-TSO case. | 727 | * non-TSO case. |
729 | */ | 728 | */ |
@@ -1029,10 +1028,6 @@ unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu) | |||
1029 | 1028 | ||
1030 | /* Compute the current effective MSS, taking SACKs and IP options, | 1029 | /* Compute the current effective MSS, taking SACKs and IP options, |
1031 | * and even PMTU discovery events into account. | 1030 | * and even PMTU discovery events into account. |
1032 | * | ||
1033 | * LARGESEND note: !tcp_urg_mode is overkill, only frames up to snd_up | ||
1034 | * cannot be large. However, taking into account rare use of URG, this | ||
1035 | * is not a big flaw. | ||
1036 | */ | 1031 | */ |
1037 | unsigned int tcp_current_mss(struct sock *sk, int large_allowed) | 1032 | unsigned int tcp_current_mss(struct sock *sk, int large_allowed) |
1038 | { | 1033 | { |
@@ -1047,7 +1042,7 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed) | |||
1047 | 1042 | ||
1048 | mss_now = tp->mss_cache; | 1043 | mss_now = tp->mss_cache; |
1049 | 1044 | ||
1050 | if (large_allowed && sk_can_gso(sk) && !tcp_urg_mode(tp)) | 1045 | if (large_allowed && sk_can_gso(sk)) |
1051 | doing_tso = 1; | 1046 | doing_tso = 1; |
1052 | 1047 | ||
1053 | if (dst) { | 1048 | if (dst) { |
@@ -1164,9 +1159,7 @@ static int tcp_init_tso_segs(struct sock *sk, struct sk_buff *skb, | |||
1164 | { | 1159 | { |
1165 | int tso_segs = tcp_skb_pcount(skb); | 1160 | int tso_segs = tcp_skb_pcount(skb); |
1166 | 1161 | ||
1167 | if (!tso_segs || | 1162 | if (!tso_segs || (tso_segs > 1 && tcp_skb_mss(skb) != mss_now)) { |
1168 | (tso_segs > 1 && (tcp_skb_mss(skb) != mss_now || | ||
1169 | tcp_urg_mode(tcp_sk(sk))))) { | ||
1170 | tcp_set_skb_tso_segs(sk, skb, mss_now); | 1163 | tcp_set_skb_tso_segs(sk, skb, mss_now); |
1171 | tso_segs = tcp_skb_pcount(skb); | 1164 | tso_segs = tcp_skb_pcount(skb); |
1172 | } | 1165 | } |
@@ -1519,6 +1512,10 @@ static int tcp_mtu_probe(struct sock *sk) | |||
1519 | * send_head. This happens as incoming acks open up the remote | 1512 | * send_head. This happens as incoming acks open up the remote |
1520 | * window for us. | 1513 | * window for us. |
1521 | * | 1514 | * |
1515 | * LARGESEND note: !tcp_urg_mode is overkill, only frames between | ||
1516 | * snd_up-64k-mss .. snd_up cannot be large. However, taking into | ||
1517 | * account rare use of URG, this is not a big flaw. | ||
1518 | * | ||
1522 | * Returns 1, if no segments are in flight and we have queued segments, but | 1519 | * Returns 1, if no segments are in flight and we have queued segments, but |
1523 | * cannot send anything now because of SWS or another problem. | 1520 | * cannot send anything now because of SWS or another problem. |
1524 | */ | 1521 | */ |
@@ -1563,7 +1560,7 @@ static int tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle) | |||
1563 | } | 1560 | } |
1564 | 1561 | ||
1565 | limit = mss_now; | 1562 | limit = mss_now; |
1566 | if (tso_segs > 1) | 1563 | if (tso_segs > 1 && !tcp_urg_mode(tp)) |
1567 | limit = tcp_mss_split_point(sk, skb, mss_now, | 1564 | limit = tcp_mss_split_point(sk, skb, mss_now, |
1568 | cwnd_quota); | 1565 | cwnd_quota); |
1569 | 1566 | ||
@@ -1620,6 +1617,7 @@ void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss, | |||
1620 | */ | 1617 | */ |
1621 | void tcp_push_one(struct sock *sk, unsigned int mss_now) | 1618 | void tcp_push_one(struct sock *sk, unsigned int mss_now) |
1622 | { | 1619 | { |
1620 | struct tcp_sock *tp = tcp_sk(sk); | ||
1623 | struct sk_buff *skb = tcp_send_head(sk); | 1621 | struct sk_buff *skb = tcp_send_head(sk); |
1624 | unsigned int tso_segs, cwnd_quota; | 1622 | unsigned int tso_segs, cwnd_quota; |
1625 | 1623 | ||
@@ -1634,7 +1632,7 @@ void tcp_push_one(struct sock *sk, unsigned int mss_now) | |||
1634 | BUG_ON(!tso_segs); | 1632 | BUG_ON(!tso_segs); |
1635 | 1633 | ||
1636 | limit = mss_now; | 1634 | limit = mss_now; |
1637 | if (tso_segs > 1) | 1635 | if (tso_segs > 1 && !tcp_urg_mode(tp)) |
1638 | limit = tcp_mss_split_point(sk, skb, mss_now, | 1636 | limit = tcp_mss_split_point(sk, skb, mss_now, |
1639 | cwnd_quota); | 1637 | cwnd_quota); |
1640 | 1638 | ||
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c index 14504dada116..7cd22262de3a 100644 --- a/net/ipv4/tcp_vegas.c +++ b/net/ipv4/tcp_vegas.c | |||
@@ -326,6 +326,8 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight) | |||
326 | tp->snd_cwnd = 2; | 326 | tp->snd_cwnd = 2; |
327 | else if (tp->snd_cwnd > tp->snd_cwnd_clamp) | 327 | else if (tp->snd_cwnd > tp->snd_cwnd_clamp) |
328 | tp->snd_cwnd = tp->snd_cwnd_clamp; | 328 | tp->snd_cwnd = tp->snd_cwnd_clamp; |
329 | |||
330 | tp->snd_ssthresh = tcp_current_ssthresh(sk); | ||
329 | } | 331 | } |
330 | 332 | ||
331 | /* Wipe the slate clean for the next RTT. */ | 333 | /* Wipe the slate clean for the next RTT. */ |