ipv6: Expose reachable and retrans timer values as msecs

[net-next-2.6.git] / net / ipv6 / addrconf.c

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 52b7df74e4c76779f82c3584fd1e27ad94ac56ef..2fc35b32df9eacb3c1dcebf153700b5056bc9689 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -98,7 +98,11 @@
 #endif
 
 #define        INFINITY_LIFE_TIME      0xFFFFFFFF
-#define TIME_DELTA(a, b) ((unsigned long)((long)(a) - (long)(b)))
+
+static inline u32 cstamp_delta(unsigned long cstamp)
+{
+       return (cstamp - INITIAL_JIFFIES) * 100UL / HZ;
+}
 
 #define ADDRCONF_TIMER_FUZZ_MINUS      (HZ > 50 ? HZ/50 : 1)
 #define ADDRCONF_TIMER_FUZZ            (HZ / 4)
@@ -3444,10 +3448,8 @@ static int put_cacheinfo(struct sk_buff *skb, unsigned long cstamp,
 {
        struct ifa_cacheinfo ci;
 
-       ci.cstamp = (u32)(TIME_DELTA(cstamp, INITIAL_JIFFIES) / HZ * 100
-                       + TIME_DELTA(cstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
-       ci.tstamp = (u32)(TIME_DELTA(tstamp, INITIAL_JIFFIES) / HZ * 100
-                       + TIME_DELTA(tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
+       ci.cstamp = cstamp_delta(cstamp);
+       ci.tstamp = cstamp_delta(tstamp);
        ci.ifa_prefered = preferred;
        ci.ifa_valid = valid;
 
@@ -3932,10 +3934,9 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
        NLA_PUT_U32(skb, IFLA_INET6_FLAGS, idev->if_flags);
 
        ci.max_reasm_len = IPV6_MAXPLEN;
-       ci.tstamp = (__u32)(TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) / HZ * 100
-                   + TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
-       ci.reachable_time = idev->nd_parms->reachable_time;
-       ci.retrans_time = idev->nd_parms->retrans_time;
+       ci.tstamp = cstamp_delta(idev->tstamp);
+       ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time);
+       ci.retrans_time = jiffies_to_msecs(idev->nd_parms->retrans_time);
        NLA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci);
 
        nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32));