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From: Matt Mackall <mpm@selenic.com>
To: Andrew Morton <akpm@osdl.com>, "David S. Miller" <davem@davemloft.net>
Cc: ak@suse.de, Jeff Moyer <jmoyer@redhat.com>,
	netdev@oss.sgi.com, linux-kernel@vger.kernel.org, mingo@elte.hu,
	john.ronciak@intel.com, rostedt@goodmis.org
Subject: [PATCH 6/8] netpoll: pre-fill skb pool
Date: Thu, 11 Aug 2005 21:19:11 -0500	[thread overview]
Message-ID: <7.502409567@selenic.com> (raw)
In-Reply-To: <6.502409567@selenic.com>

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;
 

  reply	other threads:[~2005-08-12  2:19 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-12  2:18 [PATCH 0/8] netpoll: various bugfixes Matt Mackall
2005-08-12  2:19 ` [PATCH 1/8] netpoll: rx_flags bugfix Matt Mackall
2005-08-12  2:19   ` [PATCH 2/8] netpoll: deadlock bugfix Matt Mackall
2005-08-12  2:19     ` [PATCH 3/8] netpoll: e1000 netpoll tweak Matt Mackall
2005-08-12  2:19       ` [PATCH 4/8] netpoll: netpoll_send_skb simplify Matt Mackall
2005-08-12  2:19         ` [PATCH 5/8] netpoll: add retry timeout Matt Mackall
2005-08-12  2:19           ` Matt Mackall [this message]
2005-08-12  2:19             ` [PATCH 7/8] netpoll: fix initialization/NAPI race Matt Mackall
2005-08-12  2:19               ` [PATCH 8/8] netpoll: remove unused variable Matt Mackall
2005-08-12 19:02       ` [PATCH 3/8] netpoll: e1000 netpoll tweak John Ronciak
     [not found]       ` <56a8daef0508121202172bcd17@mail.gmail.com>
2005-08-12 19:10         ` David S. Miller
2005-08-12 19:17         ` Matt Mackall
2005-08-12  2:41 ` [PATCH 0/8] netpoll: various bugfixes David S. Miller
2005-08-12 17:21 ` Olaf Hering
     [not found] ` <20050812172151.GA11104@suse.de>
2005-08-12 19:21   ` Matt Mackall
2005-08-12 19:31     ` Olaf Hering
     [not found]     ` <20050812193109.GA15434@suse.de>
2005-08-14 21:00       ` Matt Mackall
2005-08-15  6:16         ` Olaf Hering

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