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authorWANG Cong <xiyou.wangcong@gmail.com>2015-03-31 11:01:45 -0700
committerDavid S. Miller <davem@davemloft.net>2015-04-02 20:52:34 -0400
commited785309c94445dd90e242370e1f7bb034e008fd (patch)
treed00f8ddb893ba83f8a9138e5dc7ab335525e866d
parent666b805150efd62f05810ff0db08f44a2370c937 (diff)
ipv4: take rtnl_lock and mark mrt table as freed on namespace cleanup
This is the IPv4 part for commit 905a6f96a1b1 (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>
-rw-r--r--net/ipv4/ipmr.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 92825443fad6..bc40115bc394 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -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