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ipv4: take rtnl_lock and mark mrt table as freed on namespace cleanup 

This is the IPv4 part for commit 905a6f96a1
(ipv6: take rtnl_lock and mark mrt6 table as freed on namespace cleanup).

Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WANG Cong 2015-03-31 11:01:45 -07:00 committed by David S. Miller
parent 666b805150
commit ed785309c9
1 changed files with 5 additions and 0 deletions
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5
net/ipv4/ipmr.c
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@ -278,10 +278,12 @@ static void __net_exit ipmr_rules_exit(struct net *net)
{
struct mr_table *mrt, *next;
rtnl_lock();
list_for_each_entry_safe(mrt, next, &net->ipv4.mr_tables, list) {
list_del(&mrt->list);
ipmr_free_table(mrt);
}
rtnl_unlock();
fib_rules_unregister(net->ipv4.mr_rules_ops);
}
#else
@ -308,7 +310,10 @@ static int __net_init ipmr_rules_init(struct net *net)
static void __net_exit ipmr_rules_exit(struct net *net)
{
rtnl_lock();
ipmr_free_table(net->ipv4.mrt);
net->ipv4.mrt = NULL;
rtnl_unlock();
}
#endif