diff options
| -rw-r--r-- | net/core/net_namespace.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index f2f756ce99d7..97f4dc2132ad 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -347,7 +347,7 @@ struct net *get_net_ns_by_fd(int fd) ei = get_proc_ns(file_inode(file)); if (ei->ns_ops == &netns_operations) - net = get_net(ei->ns); + net = get_net(container_of(ei->ns, struct net, ns)); else net = ERR_PTR(-EINVAL); @@ -640,17 +640,22 @@ static void *netns_get(struct task_struct *task) net = get_net(nsproxy->net_ns); task_unlock(task); - return net; + return net ? &net->ns : NULL; +} + +static inline struct net *to_net_ns(struct ns_common *ns) +{ + return container_of(ns, struct net, ns); } static void netns_put(void *ns) { - put_net(ns); + put_net(to_net_ns(ns)); } static int netns_install(struct nsproxy *nsproxy, void *ns) { - struct net *net = ns; + struct net *net = to_net_ns(ns); if (!ns_capable(net->user_ns, CAP_SYS_ADMIN) || !ns_capable(current_user_ns(), CAP_SYS_ADMIN)) @@ -663,8 +668,7 @@ static int netns_install(struct nsproxy *nsproxy, void *ns) static unsigned int netns_inum(void *ns) { - struct net *net = ns; - return net->ns.inum; + return ((struct ns_common *)ns)->inum; } const struct proc_ns_operations netns_operations = { |