Commit | Line | Data |
---|---|---|
ec26815a | 1 | /* AFS client file system |
1da177e4 | 2 | * |
9b3f26c9 | 3 | * Copyright (C) 2002,5 Red Hat, Inc. All Rights Reserved. |
1da177e4 LT |
4 | * Written by David Howells (dhowells@redhat.com) |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/moduleparam.h> | |
14 | #include <linux/init.h> | |
1da177e4 | 15 | #include <linux/completion.h> |
e8edc6e0 | 16 | #include <linux/sched.h> |
e0661dfc | 17 | #include <linux/random.h> |
8e8d7f13 | 18 | #define CREATE_TRACE_POINTS |
1da177e4 LT |
19 | #include "internal.h" |
20 | ||
1da177e4 LT |
21 | MODULE_DESCRIPTION("AFS Client File System"); |
22 | MODULE_AUTHOR("Red Hat, Inc."); | |
23 | MODULE_LICENSE("GPL"); | |
24 | ||
08e0e7c8 DH |
25 | unsigned afs_debug; |
26 | module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO); | |
424b00e2 | 27 | MODULE_PARM_DESC(debug, "AFS debugging mask"); |
08e0e7c8 | 28 | |
1da177e4 LT |
29 | static char *rootcell; |
30 | ||
31 | module_param(rootcell, charp, 0); | |
32 | MODULE_PARM_DESC(rootcell, "root AFS cell name and VL server IP addr list"); | |
33 | ||
41bb26f8 | 34 | struct afs_uuid afs_uuid; |
0ad53eee | 35 | struct workqueue_struct *afs_wq; |
b908fe6b | 36 | |
1da177e4 LT |
37 | /* |
38 | * initialise the AFS client FS module | |
39 | */ | |
40 | static int __init afs_init(void) | |
41 | { | |
08e0e7c8 | 42 | int ret; |
1da177e4 LT |
43 | |
44 | printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 registering.\n"); | |
45 | ||
b4db2b35 | 46 | generate_random_uuid((unsigned char *)&afs_uuid); |
b908fe6b | 47 | |
0ad53eee TH |
48 | /* create workqueue */ |
49 | ret = -ENOMEM; | |
50 | afs_wq = alloc_workqueue("afs", 0, 0); | |
51 | if (!afs_wq) | |
52 | return ret; | |
53 | ||
1da177e4 LT |
54 | /* register the /proc stuff */ |
55 | ret = afs_proc_init(); | |
56 | if (ret < 0) | |
0ad53eee | 57 | goto error_proc; |
1da177e4 | 58 | |
9b3f26c9 | 59 | #ifdef CONFIG_AFS_FSCACHE |
1da177e4 | 60 | /* we want to be able to cache */ |
9b3f26c9 | 61 | ret = fscache_register_netfs(&afs_cache_netfs); |
1da177e4 LT |
62 | if (ret < 0) |
63 | goto error_cache; | |
64 | #endif | |
65 | ||
66 | /* initialise the cell DB */ | |
67 | ret = afs_cell_init(rootcell); | |
68 | if (ret < 0) | |
ec26815a | 69 | goto error_cell_init; |
1da177e4 | 70 | |
08e0e7c8 DH |
71 | /* initialise the VL update process */ |
72 | ret = afs_vlocation_update_init(); | |
1da177e4 | 73 | if (ret < 0) |
08e0e7c8 | 74 | goto error_vl_update_init; |
1da177e4 | 75 | |
08e0e7c8 DH |
76 | /* initialise the callback update process */ |
77 | ret = afs_callback_update_init(); | |
df44f9f4 DH |
78 | if (ret < 0) |
79 | goto error_callback_update_init; | |
1da177e4 LT |
80 | |
81 | /* create the RxRPC transport */ | |
08e0e7c8 | 82 | ret = afs_open_socket(); |
1da177e4 | 83 | if (ret < 0) |
08e0e7c8 | 84 | goto error_open_socket; |
1da177e4 LT |
85 | |
86 | /* register the filesystems */ | |
87 | ret = afs_fs_init(); | |
88 | if (ret < 0) | |
ec26815a | 89 | goto error_fs; |
1da177e4 LT |
90 | |
91 | return ret; | |
92 | ||
ec26815a | 93 | error_fs: |
08e0e7c8 DH |
94 | afs_close_socket(); |
95 | error_open_socket: | |
df44f9f4 DH |
96 | afs_callback_update_kill(); |
97 | error_callback_update_init: | |
98 | afs_vlocation_purge(); | |
08e0e7c8 | 99 | error_vl_update_init: |
df44f9f4 | 100 | afs_cell_purge(); |
ec26815a | 101 | error_cell_init: |
9b3f26c9 DH |
102 | #ifdef CONFIG_AFS_FSCACHE |
103 | fscache_unregister_netfs(&afs_cache_netfs); | |
ec26815a | 104 | error_cache: |
1da177e4 | 105 | #endif |
1da177e4 | 106 | afs_proc_cleanup(); |
0ad53eee TH |
107 | error_proc: |
108 | destroy_workqueue(afs_wq); | |
416351f2 | 109 | rcu_barrier(); |
1da177e4 LT |
110 | printk(KERN_ERR "kAFS: failed to register: %d\n", ret); |
111 | return ret; | |
ec26815a | 112 | } |
1da177e4 LT |
113 | |
114 | /* XXX late_initcall is kludgy, but the only alternative seems to create | |
115 | * a transport upon the first mount, which is worse. Or is it? | |
116 | */ | |
117 | late_initcall(afs_init); /* must be called after net/ to create socket */ | |
ec26815a | 118 | |
1da177e4 LT |
119 | /* |
120 | * clean up on module removal | |
121 | */ | |
122 | static void __exit afs_exit(void) | |
123 | { | |
124 | printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n"); | |
125 | ||
126 | afs_fs_exit(); | |
e8d6c554 | 127 | afs_kill_lock_manager(); |
08e0e7c8 DH |
128 | afs_close_socket(); |
129 | afs_purge_servers(); | |
130 | afs_callback_update_kill(); | |
131 | afs_vlocation_purge(); | |
0ad53eee | 132 | destroy_workqueue(afs_wq); |
1da177e4 | 133 | afs_cell_purge(); |
9b3f26c9 DH |
134 | #ifdef CONFIG_AFS_FSCACHE |
135 | fscache_unregister_netfs(&afs_cache_netfs); | |
1da177e4 LT |
136 | #endif |
137 | afs_proc_cleanup(); | |
416351f2 | 138 | rcu_barrier(); |
ec26815a | 139 | } |
1da177e4 LT |
140 | |
141 | module_exit(afs_exit); |