142 строки
3.2 KiB
C
142 строки
3.2 KiB
C
/* AFS client file system
|
|
*
|
|
* Copyright (C) 2002,5 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/init.h>
|
|
#include <linux/completion.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/random.h>
|
|
#define CREATE_TRACE_POINTS
|
|
#include "internal.h"
|
|
|
|
MODULE_DESCRIPTION("AFS Client File System");
|
|
MODULE_AUTHOR("Red Hat, Inc.");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
unsigned afs_debug;
|
|
module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO);
|
|
MODULE_PARM_DESC(debug, "AFS debugging mask");
|
|
|
|
static char *rootcell;
|
|
|
|
module_param(rootcell, charp, 0);
|
|
MODULE_PARM_DESC(rootcell, "root AFS cell name and VL server IP addr list");
|
|
|
|
struct uuid_v1 afs_uuid;
|
|
struct workqueue_struct *afs_wq;
|
|
|
|
/*
|
|
* initialise the AFS client FS module
|
|
*/
|
|
static int __init afs_init(void)
|
|
{
|
|
int ret;
|
|
|
|
printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 registering.\n");
|
|
|
|
generate_random_uuid((unsigned char *)&afs_uuid);
|
|
|
|
/* create workqueue */
|
|
ret = -ENOMEM;
|
|
afs_wq = alloc_workqueue("afs", 0, 0);
|
|
if (!afs_wq)
|
|
return ret;
|
|
|
|
/* register the /proc stuff */
|
|
ret = afs_proc_init();
|
|
if (ret < 0)
|
|
goto error_proc;
|
|
|
|
#ifdef CONFIG_AFS_FSCACHE
|
|
/* we want to be able to cache */
|
|
ret = fscache_register_netfs(&afs_cache_netfs);
|
|
if (ret < 0)
|
|
goto error_cache;
|
|
#endif
|
|
|
|
/* initialise the cell DB */
|
|
ret = afs_cell_init(rootcell);
|
|
if (ret < 0)
|
|
goto error_cell_init;
|
|
|
|
/* initialise the VL update process */
|
|
ret = afs_vlocation_update_init();
|
|
if (ret < 0)
|
|
goto error_vl_update_init;
|
|
|
|
/* initialise the callback update process */
|
|
ret = afs_callback_update_init();
|
|
if (ret < 0)
|
|
goto error_callback_update_init;
|
|
|
|
/* create the RxRPC transport */
|
|
ret = afs_open_socket();
|
|
if (ret < 0)
|
|
goto error_open_socket;
|
|
|
|
/* register the filesystems */
|
|
ret = afs_fs_init();
|
|
if (ret < 0)
|
|
goto error_fs;
|
|
|
|
return ret;
|
|
|
|
error_fs:
|
|
afs_close_socket();
|
|
error_open_socket:
|
|
afs_callback_update_kill();
|
|
error_callback_update_init:
|
|
afs_vlocation_purge();
|
|
error_vl_update_init:
|
|
afs_cell_purge();
|
|
error_cell_init:
|
|
#ifdef CONFIG_AFS_FSCACHE
|
|
fscache_unregister_netfs(&afs_cache_netfs);
|
|
error_cache:
|
|
#endif
|
|
afs_proc_cleanup();
|
|
error_proc:
|
|
destroy_workqueue(afs_wq);
|
|
rcu_barrier();
|
|
printk(KERN_ERR "kAFS: failed to register: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* XXX late_initcall is kludgy, but the only alternative seems to create
|
|
* a transport upon the first mount, which is worse. Or is it?
|
|
*/
|
|
late_initcall(afs_init); /* must be called after net/ to create socket */
|
|
|
|
/*
|
|
* clean up on module removal
|
|
*/
|
|
static void __exit afs_exit(void)
|
|
{
|
|
printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n");
|
|
|
|
afs_fs_exit();
|
|
afs_kill_lock_manager();
|
|
afs_close_socket();
|
|
afs_purge_servers();
|
|
afs_callback_update_kill();
|
|
afs_vlocation_purge();
|
|
destroy_workqueue(afs_wq);
|
|
afs_cell_purge();
|
|
#ifdef CONFIG_AFS_FSCACHE
|
|
fscache_unregister_netfs(&afs_cache_netfs);
|
|
#endif
|
|
afs_proc_cleanup();
|
|
rcu_barrier();
|
|
}
|
|
|
|
module_exit(afs_exit);
|