23 int do_set_thread_area(struct user_desc *info)  in do_set_thread_area()  argument
29 	ret = os_set_thread_area(info, userspace_pid[cpu]);  in do_set_thread_area()
34 		       "index = %d\n", ret, info->entry_number);  in do_set_thread_area()
39 int do_get_thread_area(struct user_desc *info)  in do_get_thread_area()  argument
45 	ret = os_get_thread_area(info, userspace_pid[cpu]);  in do_get_thread_area()
50 		       "index = %d\n", ret, info->entry_number);  in do_get_thread_area()
77 static inline void clear_user_desc(struct user_desc* info)  in clear_user_desc()  argument
80 	memset(info, 0, sizeof(*info));  in clear_user_desc()
86 	info->read_exec_only = 1;  in clear_user_desc()
87 	info->seg_not_present = 1;  in clear_user_desc()
203 static int set_tls_entry(struct task_struct* task, struct user_desc *info,  in set_tls_entry()  argument
211 	t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].tls = *info;  in set_tls_entry()
220 	struct user_desc info;  in arch_copy_tls()  local
223 	if (copy_from_user(&info,  in arch_copy_tls()
225 			   sizeof(info)))  in arch_copy_tls()
229 	if (LDT_empty(&info))  in arch_copy_tls()
232 	idx = info.entry_number;  in arch_copy_tls()
234 	ret = set_tls_entry(new, &info, idx, 0);  in arch_copy_tls()
240 static int get_tls_entry(struct task_struct *task, struct user_desc *info,  in get_tls_entry()  argument
254 	*info = t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].tls;  in get_tls_entry()
274 	clear_user_desc(info);  in get_tls_entry()
275 	info->entry_number = idx;  in get_tls_entry()
281 	struct user_desc info;  in SYSCALL_DEFINE1()  local
287 	if (copy_from_user(&info, user_desc, sizeof(info)))  in SYSCALL_DEFINE1()
290 	idx = info.entry_number;  in SYSCALL_DEFINE1()
296 		info.entry_number = idx;  in SYSCALL_DEFINE1()
302 	ret = do_set_thread_area(&info);  in SYSCALL_DEFINE1()
305 	return set_tls_entry(current, &info, idx, 1);  in SYSCALL_DEFINE1()
316 	struct user_desc info;  in ptrace_set_thread_area()  local
321 	if (copy_from_user(&info, user_desc, sizeof(info)))  in ptrace_set_thread_area()
324 	return set_tls_entry(child, &info, idx, 0);  in ptrace_set_thread_area()
329 	struct user_desc info;  in SYSCALL_DEFINE1()  local
338 	ret = get_tls_entry(current, &info, idx);  in SYSCALL_DEFINE1()
342 	if (copy_to_user(user_desc, &info, sizeof(info)))  in SYSCALL_DEFINE1()
355 	struct user_desc info;  in ptrace_get_thread_area()  local
361 	ret = get_tls_entry(child, &info, idx);  in ptrace_get_thread_area()
365 	if (copy_to_user(user_desc, &info, sizeof(info)))  in ptrace_get_thread_area()