release/src-rt-6.x/linux/linux-2.6/arch/um/kernel/umid.c

   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                 printf("umid already set\n");
  21                 return 0;
  22         }
  23
  24         *add = 0;
  25         err = set_umid(name);
  26         if(err == -EEXIST)
  27                 printf("umid '%s' already in use\n", name);
  28         else if(!err)
  29                 umid_inited = 1;
  30
  31         return 0;
  32 }
  33
  34 __uml_setup("umid=", set_umid_arg,
  35 "umid=<name>\n"
  36 "    This is used to assign a unique identity to this UML machine and\n"
  37 "    is used for naming the pid file and management console socket.\n\n"
  38 );
  39