/* * Copyright (C) 2001 Chris Emerson (cemerson@chiark.greenend.org.uk) * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ /* These are here rather than tt/uaccess.c because skas mode needs them in * order to do SIGBUS recovery when a tmpfs mount runs out of room. */ #include <linux/string.h> #include "os.h" void __do_copy(void *to, const void *from, int n) { memcpy(to, from, n); } int __do_copy_to_user(void *to, const void *from, int n, void **fault_addr, void **fault_catcher) { unsigned long fault; int faulted; fault = __do_user_copy(to, from, n, fault_addr, fault_catcher, __do_copy, &faulted); if(!faulted) return(0); else return(n - (fault - (unsigned long) to)); }