struct user_namespace {
struct uid_gid_map uid_map;
struct uid_gid_map gid_map;
+ struct uid_gid_map projid_map;
struct kref kref;
struct user_namespace *parent;
kuid_t owner;
struct seq_operations;
extern struct seq_operations proc_uid_seq_operations;
extern struct seq_operations proc_gid_seq_operations;
+extern struct seq_operations proc_projid_seq_operations;
extern ssize_t proc_uid_map_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t proc_gid_map_write(struct file *, const char __user *, size_t, loff_t *);
+extern ssize_t proc_projid_map_write(struct file *, const char __user *, size_t, loff_t *);
#else
static inline struct user_namespace *get_user_ns(struct user_namespace *ns)