1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) 4 */ 5 6 #include <asm/errno.h> 7 #include <init.h> 8 #include <kern.h> 9 #include <os.h> 10 11 /* Changed by set_umid_arg */ 12 static int umid_inited; 13 14 static int __init set_umid_arg(char *name, int *add) 15 { 16 int err; 17 18 if (umid_inited) { 19 os_warn("umid already set\n"); 20 return 0; 21 } 22 23 *add = 0; 24 err = set_umid(name); 25 if (err == -EEXIST) 26 os_warn("umid '%s' already in use\n", name); 27 else if (!err) 28 umid_inited = 1; 29 30 return 0; 31 } 32 33 __uml_setup("umid=", set_umid_arg, 34 "umid=<name>\n" 35 " This is used to assign a unique identity to this UML machine and\n" 36 " is used for naming the pid file and management console socket.\n\n" 37 ); 38 39