43 	struct cred *cred = container_of(rcu, struct cred, rcu);  in put_cred_rcu()  local
45 	kdebug("put_cred_rcu(%p)", cred);  in put_cred_rcu()
47 	if (atomic_long_read(&cred->usage) != 0)  in put_cred_rcu()
49 		      cred, atomic_long_read(&cred->usage));  in put_cred_rcu()
51 	security_cred_free(cred);  in put_cred_rcu()
52 	key_put(cred->session_keyring);  in put_cred_rcu()
53 	key_put(cred->process_keyring);  in put_cred_rcu()
54 	key_put(cred->thread_keyring);  in put_cred_rcu()
55 	key_put(cred->request_key_auth);  in put_cred_rcu()
56 	if (cred->group_info)  in put_cred_rcu()
57 		put_group_info(cred->group_info);  in put_cred_rcu()
58 	free_uid(cred->user);  in put_cred_rcu()
59 	if (cred->ucounts)  in put_cred_rcu()
60 		put_ucounts(cred->ucounts);  in put_cred_rcu()
61 	put_user_ns(cred->user_ns);  in put_cred_rcu()
62 	kmem_cache_free(cred_jar, cred);  in put_cred_rcu()
71 void __put_cred(struct cred *cred)  in __put_cred()  argument
73 	kdebug("__put_cred(%p{%ld})", cred,  in __put_cred()
74 	       atomic_long_read(&cred->usage));  in __put_cred()
76 	BUG_ON(atomic_long_read(&cred->usage) != 0);  in __put_cred()
77 	BUG_ON(cred == current->cred);  in __put_cred()
78 	BUG_ON(cred == current->real_cred);  in __put_cred()
80 	if (cred->non_rcu)  in __put_cred()
81 		put_cred_rcu(&cred->rcu);  in __put_cred()
83 		call_rcu(&cred->rcu, put_cred_rcu);  in __put_cred()
92 	struct cred *real_cred, *cred;  in exit_creds()  local
94 	kdebug("exit_creds(%u,%p,%p,{%ld})", tsk->pid, tsk->real_cred, tsk->cred,  in exit_creds()
95 	       atomic_long_read(&tsk->cred->usage));  in exit_creds()
97 	real_cred = (struct cred *) tsk->real_cred;  in exit_creds()
100 	cred = (struct cred *) tsk->cred;  in exit_creds()
101 	tsk->cred = NULL;  in exit_creds()
103 	if (real_cred == cred) {  in exit_creds()
104 		put_cred_many(cred, 2);  in exit_creds()
107 		put_cred(cred);  in exit_creds()
126 const struct cred *get_task_cred(struct task_struct *task)  in get_task_cred()
128 	const struct cred *cred;  in get_task_cred()  local
133 		cred = __task_cred((task));  in get_task_cred()
134 		BUG_ON(!cred);  in get_task_cred()
135 	} while (!get_cred_rcu(cred));  in get_task_cred()
138 	return cred;  in get_task_cred()
146 struct cred *cred_alloc_blank(void)  in cred_alloc_blank()
148 	struct cred *new;  in cred_alloc_blank()
179 struct cred *prepare_creds(void)  in prepare_creds()
182 	const struct cred *old;  in prepare_creds()
183 	struct cred *new;  in prepare_creds()
191 	old = task->cred;  in prepare_creds()
192 	memcpy(new, old, sizeof(struct cred));  in prepare_creds()
230 struct cred *prepare_exec_creds(void)  in prepare_exec_creds()
232 	struct cred *new;  in prepare_exec_creds()
265 	struct cred *new;  in copy_creds()
274 		!p->cred->thread_keyring &&  in copy_creds()
278 		p->real_cred = get_cred_many(p->cred, 2);  in copy_creds()
280 		       p->cred, atomic_long_read(&p->cred->usage));  in copy_creds()
318 	p->cred = p->real_cred = get_cred(new);  in copy_creds()
329 static bool cred_cap_issubset(const struct cred *set, const struct cred *subset)  in cred_cap_issubset()
368 int commit_creds(struct cred *new)  in commit_creds()
371 	const struct cred *old = task->real_cred;  in commit_creds()
376 	BUG_ON(task->cred != old);  in commit_creds()
416 	rcu_assign_pointer(task->cred, new);  in commit_creds()
448 void abort_creds(struct cred *new)  in abort_creds()
472 int cred_fscmp(const struct cred *a, const struct cred *b)  in cred_fscmp()
512 int set_cred_ucounts(struct cred *new)  in set_cred_ucounts()
538 	cred_jar = KMEM_CACHE(cred,  in cred_init()
558 struct cred *prepare_kernel_cred(struct task_struct *daemon)  in prepare_kernel_cred()
560 	const struct cred *old;  in prepare_kernel_cred()
561 	struct cred *new;  in prepare_kernel_cred()
617 int set_security_override(struct cred *new, u32 secid)  in set_security_override()
633 int set_security_override_from_ctx(struct cred *new, const char *secctx)  in set_security_override_from_ctx()
655 int set_create_files_as(struct cred *new, struct inode *inode)  in set_create_files_as()