xref: /openbmc/linux/arch/um/kernel/umid.c (revision 87c2ce3b)
1 /*
2  * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
3  * Licensed under the GPL
4  */
5 
6 #include "asm/errno.h"
7 #include "init.h"
8 #include "os.h"
9 #include "kern.h"
10 #include "linux/kernel.h"
11 
12 /* Changed by set_umid_arg */
13 static int umid_inited = 0;
14 
15 static int __init set_umid_arg(char *name, int *add)
16 {
17 	int err;
18 
19 	if(umid_inited)
20 		return 0;
21 
22 	*add = 0;
23 	err = set_umid(name);
24 	if(err == -EEXIST)
25 		printf("umid '%s' already in use\n", name);
26 	else if(!err)
27 		umid_inited = 1;
28 
29 	return 0;
30 }
31 
32 __uml_setup("umid=", set_umid_arg,
33 "umid=<name>\n"
34 "    This is used to assign a unique identity to this UML machine and\n"
35 "    is used for naming the pid file and management console socket.\n\n"
36 );
37 
38