/* * master.c -- the master module of a master/slave pair using kerneld * * Tested with 2.0 on the x86, Sparc */#ifndef __KERNEL__#  define __KERNEL__#endif#ifndef MODULE#  define MODULE#endif/* * Inclusions related to version problems. They *might* go after * <linux/module.h>, unless a symbol table is exported. All in all, * better putting them first anyways. */#include <linux/autoconf.h> /* retrieve the CONFIG_* macros */#if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)#   define MODVERSIONS /* force it on */#endif#ifdef MODVERSIONS#  include <linux/modversions.h>#endif#include <linux/module.h>#ifndef LINUX_VERSION_CODE  /* I don't want compile errors with 1.2 */#  include <linux/version.h>#endif# include "sysdep.h"#if LINUX_VERSION_CODE < VERSION_CODE(1,3,57)#  error "This module needs Linux 1.3.57 or newer"#else#include <linux/sched.h>#include <linux/kernel.h> /* printk() */#include <linux/string.h>#include <linux/kerneld.h>int init_module(void){    int r[3]; /* results */    r[0]=request_module("slave");    r[1]=request_module("slaveD");    r[2]=request_module("unexists");    printk("master: loading results are %i, %i, %i\n",           r[0],r[1],r[2]);    return 0; /* success */}void cleanup_module(void){    int r[4]; /* results */    r[0]=release_module("slave", 1 /* wait */);    r[1]=release_module("slaveH", 1 /* wait */);    r[2]=delayed_release_module("slaveD");    r[3]=release_module("unexists", 1 /* wait */);    printk("master: unloading results are %i, %i, %i, %i\n",           r[0],r[1],r[2],r[3]); }#endif /* 1.3.57 or newer */