1 files changed, 25 insertions, 14 deletions

diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c
index 393b1d8618e..9d3d9e78397 100644
--- a/net/core/gen_stats.c
+++ b/net/core/gen_stats.c
@@ -27,7 +27,8 @@
 static inline int
 gnet_stats_copy(struct gnet_dump *d, int type, void *buf, int size)
 {
-	NLA_PUT(d->skb, type, size, buf);
+	if (nla_put(d->skb, type, size, buf))
+		goto nla_put_failure;
 	return 0;
 
 nla_put_failure:
@@ -73,6 +74,7 @@ gnet_stats_start_copy_compat(struct sk_buff *skb, int type, int tc_stats_type,
 
 	return 0;
 }
+EXPORT_SYMBOL(gnet_stats_start_copy_compat);
 
 /**
  * gnet_stats_start_copy_compat - start dumping procedure in compatibility mode
@@ -93,6 +95,7 @@ gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
 {
 	return gnet_stats_start_copy_compat(skb, type, 0, 0, lock, d);
 }
+EXPORT_SYMBOL(gnet_stats_start_copy);
 
 /**
  * gnet_stats_copy_basic - copy basic statistics into statistic TLV
@@ -123,6 +126,7 @@ gnet_stats_copy_basic(struct gnet_dump *d, struct gnet_stats_basic_packed *b)
 	}
 	return 0;
 }
+EXPORT_SYMBOL(gnet_stats_copy_basic);
 
 /**
  * gnet_stats_copy_rate_est - copy rate estimator statistics into statistics TLV
@@ -139,21 +143,34 @@ gnet_stats_copy_basic(struct gnet_dump *d, struct gnet_stats_basic_packed *b)
 int
 gnet_stats_copy_rate_est(struct gnet_dump *d,
 			 const struct gnet_stats_basic_packed *b,
-			 struct gnet_stats_rate_est *r)
+			 struct gnet_stats_rate_est64 *r)
 {
+	struct gnet_stats_rate_est est;
+	int res;
+
 	if (b && !gen_estimator_active(b, r))
 		return 0;
 
+	est.bps = min_t(u64, UINT_MAX, r->bps);
+	/* we have some time before reaching 2^32 packets per second */
+	est.pps = r->pps;
+
 	if (d->compat_tc_stats) {
-		d->tc_stats.bps = r->bps;
-		d->tc_stats.pps = r->pps;
+		d->tc_stats.bps = est.bps;
+		d->tc_stats.pps = est.pps;
 	}
 
-	if (d->tail)
-		return gnet_stats_copy(d, TCA_STATS_RATE_EST, r, sizeof(*r));
+	if (d->tail) {
+		res = gnet_stats_copy(d, TCA_STATS_RATE_EST, &est, sizeof(est));
+		if (res < 0 || est.bps == r->bps)
+			return res;
+		/* emit 64bit stats only if needed */
+		return gnet_stats_copy(d, TCA_STATS_RATE_EST64, r, sizeof(*r));
+	}
 
 	return 0;
 }
+EXPORT_SYMBOL(gnet_stats_copy_rate_est);
 
 /**
  * gnet_stats_copy_queue - copy queue statistics into statistics TLV
@@ -181,6 +198,7 @@ gnet_stats_copy_queue(struct gnet_dump *d, struct gnet_stats_queue *q)
 
 	return 0;
 }
+EXPORT_SYMBOL(gnet_stats_copy_queue);
 
 /**
  * gnet_stats_copy_app - copy application specific statistics into statistics TLV
@@ -208,6 +226,7 @@ gnet_stats_copy_app(struct gnet_dump *d, void *st, int len)
 
 	return 0;
 }
+EXPORT_SYMBOL(gnet_stats_copy_app);
 
 /**
  * gnet_stats_finish_copy - finish dumping procedure
@@ -241,12 +260,4 @@ gnet_stats_finish_copy(struct gnet_dump *d)
 	spin_unlock_bh(d->lock);
 	return 0;
 }
-
-
-EXPORT_SYMBOL(gnet_stats_start_copy);
-EXPORT_SYMBOL(gnet_stats_start_copy_compat);
-EXPORT_SYMBOL(gnet_stats_copy_basic);
-EXPORT_SYMBOL(gnet_stats_copy_rate_est);
-EXPORT_SYMBOL(gnet_stats_copy_queue);
-EXPORT_SYMBOL(gnet_stats_copy_app);
 EXPORT_SYMBOL(gnet_stats_finish_copy);