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 | |