[patch] make netpoll budget a bit higher

[Jeff Moyer]

Hi, Matt,

I've upped the poll budget to 16 and added a comment explaining why.  I
definitely ran into this problem when testing netdump.

Signed-off-by: Jeff Moyer <jmoyer@xxxxxxxxxx>

--- linux-2.6.7/net/core/netpoll.c.budget	2004-08-16 12:33:10.176533688 -0400
+++ linux-2.6.7/net/core/netpoll.c	2004-08-16 12:37:15.510237296 -0400
@@ -61,7 +61,13 @@ static int checksum_udp(struct sk_buff *
 
 void netpoll_poll(struct netpoll *np)
 {
-	int budget = 1;
+	/*
+	 * In cases where there is bi-directional communications, reading
+	 * only one message at a time can lead to packets being dropped by
+	 * the network adapter, forcing superfluous retries and possibly
+	 * timeouts.  Thus, we set our budget to a more reasonable value.
+	 */
+	int budget = 16;
 
 	if(!np->dev || !netif_running(np->dev) || !np->dev->poll_controller)
 		return;
-
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