Commit | Line | Data |
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b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3 | * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. | |
4 | * | |
5 | * This copyrighted material is made available to anyone wishing to use, | |
6 | * modify, copy, or redistribute it subject to the terms and conditions | |
7 | * of the GNU General Public License v.2. | |
8 | */ | |
9 | ||
10 | #include <linux/sched.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/spinlock.h> | |
13 | #include <linux/completion.h> | |
14 | #include <linux/buffer_head.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/init.h> | |
5c676f6d | 17 | #include <linux/gfs2_ondisk.h> |
b3b94faa DT |
18 | #include <asm/semaphore.h> |
19 | ||
20 | #include "gfs2.h" | |
5c676f6d SW |
21 | #include "lm_interface.h" |
22 | #include "incore.h" | |
b3b94faa DT |
23 | #include "ops_fstype.h" |
24 | #include "sys.h" | |
5c676f6d | 25 | #include "util.h" |
b3b94faa DT |
26 | |
27 | /** | |
28 | * init_gfs2_fs - Register GFS2 as a filesystem | |
29 | * | |
30 | * Returns: 0 on success, error code on failure | |
31 | */ | |
32 | ||
33 | static int __init init_gfs2_fs(void) | |
34 | { | |
35 | int error; | |
36 | ||
37 | gfs2_init_lmh(); | |
38 | ||
39 | error = gfs2_sys_init(); | |
40 | if (error) | |
41 | return error; | |
42 | ||
43 | error = -ENOMEM; | |
44 | ||
45 | gfs2_glock_cachep = kmem_cache_create("gfs2_glock", | |
46 | sizeof(struct gfs2_glock), | |
47 | 0, 0, NULL, NULL); | |
48 | if (!gfs2_glock_cachep) | |
49 | goto fail; | |
50 | ||
51 | gfs2_inode_cachep = kmem_cache_create("gfs2_inode", | |
52 | sizeof(struct gfs2_inode), | |
53 | 0, 0, NULL, NULL); | |
54 | if (!gfs2_inode_cachep) | |
55 | goto fail; | |
56 | ||
57 | gfs2_bufdata_cachep = kmem_cache_create("gfs2_bufdata", | |
58 | sizeof(struct gfs2_bufdata), | |
59 | 0, 0, NULL, NULL); | |
60 | if (!gfs2_bufdata_cachep) | |
61 | goto fail; | |
62 | ||
63 | error = register_filesystem(&gfs2_fs_type); | |
64 | if (error) | |
65 | goto fail; | |
66 | ||
67 | printk("GFS2 (built %s %s) installed\n", __DATE__, __TIME__); | |
68 | ||
69 | return 0; | |
70 | ||
71 | fail: | |
72 | if (gfs2_bufdata_cachep) | |
73 | kmem_cache_destroy(gfs2_bufdata_cachep); | |
74 | ||
75 | if (gfs2_inode_cachep) | |
76 | kmem_cache_destroy(gfs2_inode_cachep); | |
77 | ||
78 | if (gfs2_glock_cachep) | |
79 | kmem_cache_destroy(gfs2_glock_cachep); | |
80 | ||
81 | gfs2_sys_uninit(); | |
82 | return error; | |
83 | } | |
84 | ||
85 | /** | |
86 | * exit_gfs2_fs - Unregister the file system | |
87 | * | |
88 | */ | |
89 | ||
90 | static void __exit exit_gfs2_fs(void) | |
91 | { | |
92 | unregister_filesystem(&gfs2_fs_type); | |
93 | ||
94 | kmem_cache_destroy(gfs2_bufdata_cachep); | |
95 | kmem_cache_destroy(gfs2_inode_cachep); | |
96 | kmem_cache_destroy(gfs2_glock_cachep); | |
97 | ||
98 | gfs2_sys_uninit(); | |
99 | } | |
100 | ||
101 | MODULE_DESCRIPTION("Global File System"); | |
102 | MODULE_AUTHOR("Red Hat, Inc."); | |
103 | MODULE_LICENSE("GPL"); | |
104 | ||
105 | module_init(init_gfs2_fs); | |
106 | module_exit(exit_gfs2_fs); | |
107 |