diff options
Diffstat (limited to 'kernel/pid_namespace.c')
| -rw-r--r-- | kernel/pid_namespace.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 99e27e5..dd961ad 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -313,6 +313,11 @@ int reboot_pid_ns(struct pid_namespace *pid_ns, int cmd) return 0; } +static inline struct pid_namespace *to_pid_ns(struct ns_common *ns) +{ + return container_of(ns, struct pid_namespace, ns); +} + static void *pidns_get(struct task_struct *task) { struct pid_namespace *ns; @@ -323,18 +328,18 @@ static void *pidns_get(struct task_struct *task) get_pid_ns(ns); rcu_read_unlock(); - return ns; + return ns ? &ns->ns : NULL; } static void pidns_put(void *ns) { - put_pid_ns(ns); + put_pid_ns(to_pid_ns(ns)); } static int pidns_install(struct nsproxy *nsproxy, void *ns) { struct pid_namespace *active = task_active_pid_ns(current); - struct pid_namespace *ancestor, *new = ns; + struct pid_namespace *ancestor, *new = to_pid_ns(ns); if (!ns_capable(new->user_ns, CAP_SYS_ADMIN) || !ns_capable(current_user_ns(), CAP_SYS_ADMIN)) @@ -364,8 +369,7 @@ static int pidns_install(struct nsproxy *nsproxy, void *ns) static unsigned int pidns_inum(void *ns) { - struct pid_namespace *pid_ns = ns; - return pid_ns->ns.inum; + return ((struct ns_common *)ns)->inum; } const struct proc_ns_operations pidns_operations = { |
