32 struct nsproxy init_nsproxy = {
52 static inline struct nsproxy *create_nsproxy(void)  in create_nsproxy()
54 	struct nsproxy *nsproxy;  in create_nsproxy()  local
56 	nsproxy = kmem_cache_alloc(nsproxy_cachep, GFP_KERNEL);  in create_nsproxy()
57 	if (nsproxy)  in create_nsproxy()
58 		refcount_set(&nsproxy->count, 1);  in create_nsproxy()
59 	return nsproxy;  in create_nsproxy()
67 static struct nsproxy *create_new_namespaces(unsigned long flags,  in create_new_namespaces()
71 	struct nsproxy *new_nsp;  in create_new_namespaces()
78 	new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, user_ns, new_fs);  in create_new_namespaces()
84 	new_nsp->uts_ns = copy_utsname(flags, user_ns, tsk->nsproxy->uts_ns);  in create_new_namespaces()
90 	new_nsp->ipc_ns = copy_ipcs(flags, user_ns, tsk->nsproxy->ipc_ns);  in create_new_namespaces()
97 		copy_pid_ns(flags, user_ns, tsk->nsproxy->pid_ns_for_children);  in create_new_namespaces()
104 					    tsk->nsproxy->cgroup_ns);  in create_new_namespaces()
110 	new_nsp->net_ns = copy_net_ns(flags, user_ns, tsk->nsproxy->net_ns);  in create_new_namespaces()
117 					tsk->nsproxy->time_ns_for_children);  in create_new_namespaces()
122 	new_nsp->time_ns = get_time_ns(tsk->nsproxy->time_ns);  in create_new_namespaces()
153 	struct nsproxy *old_ns = tsk->nsproxy;  in copy_namespaces()
155 	struct nsproxy *new_ns;  in copy_namespaces()
186 	tsk->nsproxy = new_ns;  in copy_namespaces()
190 void free_nsproxy(struct nsproxy *ns)  in free_nsproxy()
214 	struct nsproxy **new_nsp, struct cred *new_cred, struct fs_struct *new_fs)  in unshare_nsproxy_namespaces()
239 void switch_task_namespaces(struct task_struct *p, struct nsproxy *new)  in switch_task_namespaces()
241 	struct nsproxy *ns;  in switch_task_namespaces()
246 	ns = p->nsproxy;  in switch_task_namespaces()
247 	p->nsproxy = new;  in switch_task_namespaces()
262 	struct nsproxy *new;  in exec_task_namespaces()
264 	if (tsk->nsproxy->time_ns_for_children == tsk->nsproxy->time_ns)  in exec_task_namespaces()
327 	if (nsset->nsproxy)  in put_nsset()
328 		free_nsproxy(nsset->nsproxy);  in put_nsset()
335 	nsset->nsproxy = create_new_namespaces(0, me, current_user_ns(), me->fs);  in prepare_nsset()
336 	if (IS_ERR(nsset->nsproxy))  in prepare_nsset()
337 		return PTR_ERR(nsset->nsproxy);  in prepare_nsset()
381 	struct nsproxy *nsp;  in validate_nsset()
398 	nsp = tsk->nsproxy;  in validate_nsset()
538 		timens_commit(me, nsset->nsproxy->time_ns);  in commit_nsset()
542 	switch_task_namespaces(me, nsset->nsproxy);  in commit_nsset()
543 	nsset->nsproxy = NULL;  in commit_nsset()
589 	nsproxy_cachep = KMEM_CACHE(nsproxy, SLAB_PANIC|SLAB_ACCOUNT);  in nsproxy_cache_init()