netdev - Re: [PATCHv3 1/2] net: Enable 64-bit net device statistics on 32-bit architectures

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Date:	Sat, 12 Jun 2010 15:54:54 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	bhutchings@...arflare.com
Cc:	shemminger@...tta.com, arnd@...db.de, netdev@...r.kernel.org,
	linux-net-drivers@...arflare.com
Subject: Re: [PATCHv3 1/2] net: Enable 64-bit net device statistics on
 32-bit architectures

From: Ben Hutchings <bhutchings@...arflare.com>
Date: Tue, 08 Jun 2010 18:19:54 +0100

> Use struct rtnl_link_stats64 as the statistics structure.
> 
> On 32-bit architectures, insert 32 bits of padding after/before each
> field of struct net_device_stats to make its layout compatible with
> struct rtnl_link_stats64.  Add an anonymous union in net_device; move
> stats into the union and add struct rtnl_link_stats64 stats64.
> 
> Add net_device_ops::ndo_get_stats64, implementations of which will
> return a pointer to struct rtnl_link_stats64.  Drivers that implement
> this operation must not update the structure asynchronously.
> 
> Change dev_get_stats() to call ndo_get_stats64 if available, and to
> return a pointer to struct rtnl_link_stats64.  Change callers of
> dev_get_stats() accordingly.
> 
> Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>

Applied.
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