igmp: fix ip_mc_sf_allow race [v5]

[~andy/linux] / include / linux / igmp.h

diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 724c27e5d17355c0300294e30dbc52f6a19cc2dd..93fc2449af10e8dded6cbed23b4d979e4b5d10ef 100644 (file)
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -153,6 +153,7 @@ extern int sysctl_igmp_max_msf;
 struct ip_sf_socklist {
        unsigned int            sl_max;
        unsigned int            sl_count;
+       struct rcu_head         rcu;
        __be32                  sl_addr[0];
 };
 
@@ -170,6 +171,7 @@ struct ip_mc_socklist {
        struct ip_mreqn         multi;
        unsigned int            sfmode;         /* MCAST_{INCLUDE,EXCLUDE} */
        struct ip_sf_socklist   *sflist;
+       struct rcu_head         rcu;
 };
 
 struct ip_sf_list {