[PATCH 6/8] netpoll: pre-fill skb pool

Matt Mackall
2005-08-12T02:20:15Z

we could do one thing (see the patch below): i think it would be useful
to fill up the netlogging skb queue straight at initialization time.
Especially if netpoll is used for dumping alone, the system might not be
in a situation to fill up the queue at the point of crash, so better be
a bit more prepared and keep the pipeline filled.

Ingo

Signed-off-by: Ingo Molnar <mingo@elte.hu>

I've modified this to be called earlier - mpm

Signed-off-by: Matt Mackall <mpm@selenic.com>

Index: l/net/core/netpoll.c
===================================================================
--- l.orig/net/core/netpoll.c 2005-08-08 23:00:48.000000000 -0500
+++ l/net/core/netpoll.c 2005-08-11 01:50:31.000000000 -0500
@@ -724,6 +724,10 @@ int netpoll_setup(struct netpoll *np)
npinfo->rx_np = np;
spin_unlock_irqrestore(&npinfo->rx_lock, flags);
}
+
+ /* fill up the skb queue */
+ refill_skbs();
+
/* last thing to do is link it to the net device structure */
ndev->npinfo = npinfo;