33 struct nsproxy init_nsproxy = {
53 static inline struct nsproxy *create_nsproxy(void)  in create_nsproxy()
55 	struct nsproxy *nsproxy;  in create_nsproxy()  local
57 	nsproxy = kmem_cache_alloc(nsproxy_cachep, GFP_KERNEL);  in create_nsproxy()
58 	if (nsproxy)  in create_nsproxy()
59 		refcount_set(&nsproxy->count, 1);  in create_nsproxy()
60 	return nsproxy;  in create_nsproxy()
63 static inline void nsproxy_free(struct nsproxy *ns)  in nsproxy_free()
76 void deactivate_nsproxy(struct nsproxy *ns)  in deactivate_nsproxy()
87 static struct nsproxy *create_new_namespaces(u64 flags,  in create_new_namespaces()
91 	struct nsproxy *new_nsp;  in create_new_namespaces()
98 	new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, user_ns, new_fs);  in create_new_namespaces()
104 	new_nsp->uts_ns = copy_utsname(flags, user_ns, tsk->nsproxy->uts_ns);  in create_new_namespaces()
110 	new_nsp->ipc_ns = copy_ipcs(flags, user_ns, tsk->nsproxy->ipc_ns);  in create_new_namespaces()
117 		copy_pid_ns(flags, user_ns, tsk->nsproxy->pid_ns_for_children);  in create_new_namespaces()
124 					    tsk->nsproxy->cgroup_ns);  in create_new_namespaces()
130 	new_nsp->net_ns = copy_net_ns(flags, user_ns, tsk->nsproxy->net_ns);  in create_new_namespaces()
137 					tsk->nsproxy->time_ns_for_children);  in create_new_namespaces()
142 	new_nsp->time_ns = get_time_ns(tsk->nsproxy->time_ns);  in create_new_namespaces()
169 	struct nsproxy *old_ns = tsk->nsproxy;  in copy_namespaces()
171 	struct nsproxy *new_ns;  in copy_namespaces()
203 	tsk->nsproxy = new_ns;  in copy_namespaces()
212 	struct nsproxy **new_nsp, struct cred *new_cred, struct fs_struct *new_fs)  in unshare_nsproxy_namespaces()
237 void switch_task_namespaces(struct task_struct *p, struct nsproxy *new)  in switch_task_namespaces()
239 	struct nsproxy *ns;  in switch_task_namespaces()
247 	ns = p->nsproxy;  in switch_task_namespaces()
248 	p->nsproxy = new;  in switch_task_namespaces()
279 	struct nsproxy *new;  in exec_task_namespaces()
281 	if (tsk->nsproxy->time_ns_for_children == tsk->nsproxy->time_ns)  in exec_task_namespaces()
344 	if (nsset->nsproxy)  in put_nsset()
345 		nsproxy_free(nsset->nsproxy);  in put_nsset()
352 	nsset->nsproxy = create_new_namespaces(0, me, current_user_ns(), me->fs);  in prepare_nsset()
353 	if (IS_ERR(nsset->nsproxy))  in prepare_nsset()
354 		return PTR_ERR(nsset->nsproxy);  in prepare_nsset()
398 	struct nsproxy *nsp;  in validate_nsset()
415 	nsp = tsk->nsproxy;  in validate_nsset()
555 		timens_commit(me, nsset->nsproxy->time_ns);  in commit_nsset()
559 	switch_task_namespaces(me, nsset->nsproxy);  in commit_nsset()
560 	nsset->nsproxy = NULL;  in commit_nsset()
605 	nsproxy_cachep = KMEM_CACHE(nsproxy, SLAB_PANIC|SLAB_ACCOUNT);  in nsproxy_cache_init()