netdev - Re: [PATCH 4/9] ifb: convert to 64 bit stats

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Message-ID: <1307590146.3980.28.camel@edumazet-laptop>
Date:	Thu, 09 Jun 2011 05:29:06 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH 4/9] ifb: convert to 64 bit stats

Le mercredi 08 juin 2011 à 17:54 -0700, Stephen Hemminger a écrit :
> pièce jointe document texte brut (ifb-stats64.patch)
> Convert input functional block device to use 64 bit stats.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
> 
> 
> --- a/drivers/net/ifb.c	2011-06-07 16:58:31.317079332 -0700
> +++ b/drivers/net/ifb.c	2011-06-07 17:29:02.958161955 -0700
> @@ -42,7 +42,14 @@ struct ifb_private {
>  	struct tasklet_struct   ifb_tasklet;
>  	int     tasklet_pending;
>  	struct sk_buff_head     rq;
> +	u64 rx_packets;
> +	u64 rx_bytes;
> +	u64 rx_dropped;
> +
>  	struct sk_buff_head     tq;
> +	u64 tx_packets;
> +	u64 tx_bytes;
> +	u64 tx_dropped;
>  };
>  

Hi Stephen

This needs special synchronization on 32bit arches, as Ben pointed out
for other drivers.

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