[IPV4]: Convert do_gettimeofday() to getnstimeofday().

What do_gettimeofday() does is to call getnstimeofday() and
to convert the result from timespec{} to timeval{}.
After that, these callers convert the result again to msec.
Use getnstimeofday() and convert the units at once.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index fee171e..c67d00e 100644 (file)
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -847,7 +847,7 @@ static void icmp_echo(struct sk_buff *skb)
  */
 static void icmp_timestamp(struct sk_buff *skb)
 {
-       struct timeval tv;
+       struct timespec tv;
        struct icmp_bxm icmp_param;
        /*
         *      Too short.
@@ -858,9 +858,9 @@ static void icmp_timestamp(struct sk_buff *skb)
        /*
         *      Fill in the current time as ms since midnight UT:
         */
-       do_gettimeofday(&tv);
-       icmp_param.data.times[1] = htonl((tv.tv_sec % 86400) * 1000 +
-                                        tv.tv_usec / 1000);
+       getnstimeofday(&tv);
+       icmp_param.data.times[1] = htonl((tv.tv_sec % 86400) * MSEC_PER_SEC +
+                                        tv.tv_nsec / NSEC_PER_MSEC);
        icmp_param.data.times[2] = icmp_param.data.times[1];
        if (skb_copy_bits(skb, 0, &icmp_param.data.times[0], 4))
                BUG();

diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index d107543..33126ad 100644 (file)
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -55,10 +55,10 @@ void ip_options_build(struct sk_buff * skb, struct ip_options * opt,
                if (opt->ts_needaddr)
                        ip_rt_get_source(iph+opt->ts+iph[opt->ts+2]-9, rt);
                if (opt->ts_needtime) {
-                       struct timeval tv;
+                       struct timespec tv;
                        __be32 midtime;
-                       do_gettimeofday(&tv);
-                       midtime = htonl((tv.tv_sec % 86400) * 1000 + tv.tv_usec / 1000);
+                       getnstimeofday(&tv);
+                       midtime = htonl((tv.tv_sec % 86400) * MSEC_PER_SEC + tv.tv_nsec / NSEC_PER_MSEC);
                        memcpy(iph+opt->ts+iph[opt->ts+2]-5, &midtime, 4);
                }
                return;
@@ -406,10 +406,10 @@ int ip_options_compile(struct net *net,
                                        break;
                                }
                                if (timeptr) {
-                                       struct timeval tv;
+                                       struct timespec tv;
                                        __be32  midtime;
-                                       do_gettimeofday(&tv);
-                                       midtime = htonl((tv.tv_sec % 86400) * 1000 + tv.tv_usec / 1000);
+                                       getnstimeofday(&tv);
+                                       midtime = htonl((tv.tv_sec % 86400) * MSEC_PER_SEC + tv.tv_nsec / NSEC_PER_MSEC);
                                        memcpy(timeptr, &midtime, sizeof(__be32));
                                        opt->is_changed = 1;
                                }