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

What do_gettimeofday() does is to call getnstimeofday() and
to convert the result from timespec{} to timeval{}.
We do not always need timeval{} and we can convert timespec{}
when we really need (to print).

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 11 deletions

diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index 7053bb827bc8..6e1df62bd7c9 100644
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -46,29 +46,24 @@ struct {
         struct kfifo      *fifo;
         spinlock_t        lock;
         wait_queue_head_t wait;
-        struct timeval    tstart;
+        struct timespec   tstart;
 } dccpw;
 
 static void printl(const char *fmt, ...)
 {
         va_list args;
         int len;
-        struct timeval now;
+        struct timespec now;
         char tbuf[256];
 
         va_start(args, fmt);
-        do_gettimeofday(&now);
+        getnstimeofday(&now);
 
-        now.tv_sec -= dccpw.tstart.tv_sec;
-        now.tv_usec -= dccpw.tstart.tv_usec;
-        if (now.tv_usec < 0) {
-                --now.tv_sec;
-                now.tv_usec += 1000000;
-        }
+        now = timespec_sub(now, dccpw.tstart);
 
         len = sprintf(tbuf, "%lu.%06lu ",
                       (unsigned long) now.tv_sec,
-                      (unsigned long) now.tv_usec);
+                      (unsigned long) now.tv_nsec / NSEC_PER_USEC);
         len += vscnprintf(tbuf+len, sizeof(tbuf)-len, fmt, args);
         va_end(args);
 
@@ -119,7 +114,7 @@ static struct jprobe dccp_send_probe = {
 static int dccpprobe_open(struct inode *inode, struct file *file)
 {
         kfifo_reset(dccpw.fifo);
-        do_gettimeofday(&dccpw.tstart);
+        getnstimeofday(&dccpw.tstart);
         return 0;
 }