Bad nsec conversion in svc_udp_recvfrom()

From: Steve Dickson
Date: Wed Oct 26 2005 - 03:36:28 EST


In patch-2.6.14-rc5 there is the following:
@@ -584,13 +583,16 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
/* possibly an icmp error */
dprintk("svc: recvfrom returned error %d\n", -err);
}
- if (skb->stamp.tv_sec == 0) {
- skb->stamp.tv_sec = xtime.tv_sec;
- skb->stamp.tv_usec = xtime.tv_nsec / NSEC_PER_USEC;
+ if (skb->tstamp.off_sec == 0) {
+ struct timeval tv;
+
+ tv.tv_sec = xtime.tv_sec;
+ tv.tv_usec = xtime.tv_nsec * 1000;
+ skb_set_timestamp(skb, &tv);
/* Don't enable netstamp, sunrpc doesn't
need that much accuracy */
}
- svsk->sk_sk->sk_stamp = skb->stamp;
+ skb_get_timestamp(skb, &svsk->sk_sk->sk_stamp);
set_bit(SK_DATA, &svsk->sk_flags); /* there may be more data... */

/*
Shouldn't tv.tv_usec = xtime.tv_nsec * 1000
be tv.tv_usec = xtime.tv_nsec / 1000 or possible
tv.tv_usec = xtime.tv_nsec / NSEC_PER_USEC ?

The was fixed by a previous patch
(see http://lkml.org/lkml/2005/8/1/251)
but now it seems to be broken again...

steved.


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