x86_64: prepare shared kernel/head.S

[safe/jmp/linux-2.6] / net / dccp / dccp.h

diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 292f18e..e2d74cd 100644 (file)
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -71,11 +71,15 @@ extern void dccp_time_wait(struct sock *sk, int state, int timeo);
 /* RFC 1122, 4.2.3.1 initial RTO value */
 #define DCCP_TIMEOUT_INIT ((unsigned)(3 * HZ))
 
+#define DCCP_RTO_MAX ((unsigned)(120 * HZ)) /* FIXME: using TCP value */
+
+/* bounds for sampled RTT values from packet exchanges (in usec) */
+#define DCCP_SANE_RTT_MIN      100
+#define DCCP_SANE_RTT_MAX      (4 * USEC_PER_SEC)
+
 /* Maximal interval between probes for local resources.  */
 #define DCCP_RESOURCE_PROBE_INTERVAL ((unsigned)(HZ / 2U))
 
-#define DCCP_RTO_MAX ((unsigned)(120 * HZ)) /* FIXME: using TCP value */
-
 /* sysctl variables for DCCP */
 extern int  sysctl_dccp_request_retries;
 extern int  sysctl_dccp_retries1;
@@ -180,7 +184,7 @@ DECLARE_SNMP_STAT(struct dccp_mib, dccp_statistics);
 /*
  *     Checksumming routines
  */
-static inline int dccp_csum_coverage(const struct sk_buff *skb)
+static inline unsigned int dccp_csum_coverage(const struct sk_buff *skb)
 {
        const struct dccp_hdr* dh = dccp_hdr(skb);
 
@@ -191,7 +195,7 @@ static inline int dccp_csum_coverage(const struct sk_buff *skb)
 
 static inline void dccp_csum_outgoing(struct sk_buff *skb)
 {
-       int cov = dccp_csum_coverage(skb);
+       unsigned int cov = dccp_csum_coverage(skb);
 
        if (cov >= skb->len)
                dccp_hdr(skb)->dccph_cscov = 0;
@@ -292,6 +296,8 @@ extern int     dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
 extern int        dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
 extern void       dccp_send_close(struct sock *sk, const int active);
 extern int        dccp_invalid_packet(struct sk_buff *skb);
+extern u32        dccp_sample_rtt(struct sock *sk, struct timeval *t_recv,
+                                                   struct timeval *t_history);
 
 static inline int dccp_bad_service_code(const struct sock *sk,
                                        const __be32 service)