forked from luck/tmp_suning_uos_patched
41bb26f8db
This essentially is a partial revert of commit ff548773
("afs: Move UUID struct to linux/uuid.h") and moves struct uuid_v1 back into
fs/afs as struct afs_uuid. It however keeps it as big endian structure
so that we can use the normal uuid generation helpers when casting to/from
struct afs_uuid.
The V1 uuid intrepretation in struct form isn't really useful to the
rest of the kernel, and not really compatible to it either, so move it
back to AFS instead of polluting the global uuid.h.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David Howells <dhowells@redhat.com>
142 lines
3.2 KiB
C
142 lines
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 afs_uuid 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);
|