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[NET]: Make the loopback device per network namespace.

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This patch makes loopback_dev per network namespace.  Adding
code to create a different loopback device for each network
namespace and adding the code to free a loopback device
when a network namespace exits.

This patch modifies all users the loopback_dev so they
access it as init_net.loopback_dev, keeping all of the
code compiling and working.  A later pass will be needed to
update the users to use something other than the initial network
namespace.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman
2007-09-26 22:10:56 -07:00
committed by David S. Miller
parent 0cc217e16c
commit 2774c7aba6
13 changed files with 64 additions and 45 deletions
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2
net/ipv6/netfilter/ip6t_REJECT.c
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@ -167,7 +167,7 @@ static inline void
send_unreach(struct sk_buff *skb_in, unsigned char code, unsigned int hooknum)
{
if (hooknum == NF_IP6_LOCAL_OUT && skb_in->dev == NULL)
skb_in->dev = loopback_dev;
skb_in->dev = init_net.loopback_dev;
icmpv6_send(skb_in, ICMPV6_DEST_UNREACH, code, 0, NULL);
}