10 unsigned long _copy_from_user(void *to, const void __user *from, unsigned long n)  in _copy_from_user()  argument
14 	if (!should_fail_usercopy() && likely(access_ok(from, n))) {  in _copy_from_user()
15 		instrument_copy_from_user_before(to, from, n);  in _copy_from_user()
16 		res = raw_copy_from_user(to, from, n);  in _copy_from_user()
17 		instrument_copy_from_user_after(to, from, n, res);  in _copy_from_user()
27 unsigned long _copy_to_user(void __user *to, const void *from, unsigned long n)  in _copy_to_user()  argument
33 		instrument_copy_to_user(to, from, n);  in _copy_to_user()
34 		n = raw_copy_to_user(to, from, n);  in _copy_to_user()
55 int check_zeroed_user(const void __user *from, size_t size)  in check_zeroed_user()  argument
58 	uintptr_t align = (uintptr_t) from % sizeof(unsigned long);  in check_zeroed_user()
63 	from -= align;  in check_zeroed_user()
66 	if (!user_read_access_begin(from, size))  in check_zeroed_user()
69 	unsafe_get_user(val, (unsigned long __user *) from, err_fault);  in check_zeroed_user()
77 		from += sizeof(unsigned long);  in check_zeroed_user()
80 		unsafe_get_user(val, (unsigned long __user *) from, err_fault);  in check_zeroed_user()