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authorDavid S. Miller <davem@davemloft.net>2009-12-15 20:56:42 -0800
committerDavid S. Miller <davem@davemloft.net>2009-12-15 20:56:42 -0800
commitbb5b7c11263dbbe78253cd05945a6bf8f55add8e (patch)
tree7a639cbd6d6ad968ca22427f2b8697aadb37a907 /include
parent166a0fd4c788ec7f10ca8194ec6d526afa12db75 (diff)
downloadop-kernel-dev-bb5b7c11263dbbe78253cd05945a6bf8f55add8e.zip
op-kernel-dev-bb5b7c11263dbbe78253cd05945a6bf8f55add8e.tar.gz
tcp: Revert per-route SACK/DSACK/TIMESTAMP changes.
It creates a regression, triggering badness for SYN_RECV sockets, for example: [19148.022102] Badness at net/ipv4/inet_connection_sock.c:293 [19148.022570] NIP: c02a0914 LR: c02a0904 CTR: 00000000 [19148.023035] REGS: eeecbd30 TRAP: 0700 Not tainted (2.6.32) [19148.023496] MSR: 00029032 <EE,ME,CE,IR,DR> CR: 24002442 XER: 00000000 [19148.024012] TASK = eee9a820[1756] 'privoxy' THREAD: eeeca000 This is likely caused by the change in the 'estab' parameter passed to tcp_parse_options() when invoked by the functions in net/ipv4/tcp_minisocks.c But even if that is fixed, the ->conn_request() changes made in this patch series is fundamentally wrong. They try to use the listening socket's 'dst' to probe the route settings. The listening socket doesn't even have a route, and you can't get the right route (the child request one) until much later after we setup all of the state, and it must be done by hand. This stuff really isn't ready, so the best thing to do is a full revert. This reverts the following commits: f55017a93f1a74d50244b1254b9a2bd7ac9bbf7d 022c3f7d82f0f1c68018696f2f027b87b9bb45c2 1aba721eba1d84a2defce45b950272cee1e6c72a cda42ebd67ee5fdf09d7057b5a4584d36fe8a335 345cda2fd695534be5a4494f1b59da9daed33663 dc343475ed062e13fc260acccaab91d7d80fd5b2 05eaade2782fb0c90d3034fd7a7d5a16266182bb 6a2a2d6bf8581216e08be15fcb563cfd6c430e1e Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/rtnetlink.h6
-rw-r--r--include/net/dst.h2
-rw-r--r--include/net/tcp.h3
3 files changed, 4 insertions, 7 deletions
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 14fc906..05330fc 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -368,11 +368,9 @@ enum {
#define RTAX_MAX (__RTAX_MAX - 1)
#define RTAX_FEATURE_ECN 0x00000001
-#define RTAX_FEATURE_NO_SACK 0x00000002
-#define RTAX_FEATURE_NO_TSTAMP 0x00000004
+#define RTAX_FEATURE_SACK 0x00000002
+#define RTAX_FEATURE_TIMESTAMP 0x00000004
#define RTAX_FEATURE_ALLFRAG 0x00000008
-#define RTAX_FEATURE_NO_WSCALE 0x00000010
-#define RTAX_FEATURE_NO_DSACK 0x00000020
struct rta_session {
__u8 proto;
diff --git a/include/net/dst.h b/include/net/dst.h
index 387cb3c..39c4a59 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -113,7 +113,7 @@ dst_metric(const struct dst_entry *dst, int metric)
static inline u32
dst_feature(const struct dst_entry *dst, u32 feature)
{
- return (dst ? dst_metric(dst, RTAX_FEATURES) & feature : 0);
+ return dst_metric(dst, RTAX_FEATURES) & feature;
}
static inline u32 dst_mtu(const struct dst_entry *dst)
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1b6f7d3..34f5cc2 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -408,8 +408,7 @@ extern int tcp_recvmsg(struct kiocb *iocb, struct sock *sk,
extern void tcp_parse_options(struct sk_buff *skb,
struct tcp_options_received *opt_rx,
u8 **hvpp,
- int estab,
- struct dst_entry *dst);
+ int estab);
extern u8 *tcp_parse_md5sig_option(struct tcphdr *th);
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