git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| b3b94faa DT |
1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
| 3a8a9a10 | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
| b3b94faa DT |
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 | |
| 19 | #include "gfs2.h" | |
| 5c676f6d SW |
20 | #include "lm_interface.h" |
| 21 | #include "incore.h" | |
| b3b94faa DT |
22 | #include "ops_fstype.h" |
| 23 | #include "sys.h" | |
| 5c676f6d | 24 | #include "util.h" |
| b3b94faa DT |
25 | |
| 26 | /** | |
| 27 | * init_gfs2_fs - Register GFS2 as a filesystem | |
| 28 | * | |
| 29 | * Returns: 0 on success, error code on failure | |
| 30 | */ | |
| 31 | ||
| 32 | static int __init init_gfs2_fs(void) | |
| 33 | { | |
| 34 | int error; | |
| 35 | ||
| 36 | gfs2_init_lmh(); | |
| 37 | ||
| 38 | error = gfs2_sys_init(); | |
| 39 | if (error) | |
| 40 | return error; | |
| 41 | ||
| 42 | error = -ENOMEM; | |
| 43 | ||
| 44 | gfs2_glock_cachep = kmem_cache_create("gfs2_glock", | |
| 45 | sizeof(struct gfs2_glock), | |
| 46 | 0, 0, NULL, NULL); | |
| 47 | if (!gfs2_glock_cachep) | |
| 48 | goto fail; | |
| 49 | ||
| 50 | gfs2_inode_cachep = kmem_cache_create("gfs2_inode", | |
| 51 | sizeof(struct gfs2_inode), | |
| 52 | 0, 0, NULL, NULL); | |
| 53 | if (!gfs2_inode_cachep) | |
| 54 | goto fail; | |
| 55 | ||
| 56 | gfs2_bufdata_cachep = kmem_cache_create("gfs2_bufdata", | |
| 57 | sizeof(struct gfs2_bufdata), | |
| 58 | 0, 0, NULL, NULL); | |
| 59 | if (!gfs2_bufdata_cachep) | |
| 60 | goto fail; | |
| 61 | ||
| 62 | error = register_filesystem(&gfs2_fs_type); | |
| 63 | if (error) | |
| 64 | goto fail; | |
| 65 | ||
| 419c93e0 SW |
66 | error = register_filesystem(&gfs2meta_fs_type); |
| 67 | if (error) | |
| 68 | goto fail_unregister; | |
| 69 | ||
| b3b94faa DT |
70 | printk("GFS2 (built %s %s) installed\n", __DATE__, __TIME__); |
| 71 | ||
| 72 | return 0; | |
| 73 | ||
| 419c93e0 SW |
74 | fail_unregister: |
| 75 | unregister_filesystem(&gfs2_fs_type); | |
| 76 | fail: | |
| b3b94faa DT |
77 | if (gfs2_bufdata_cachep) |
| 78 | kmem_cache_destroy(gfs2_bufdata_cachep); | |
| 79 | ||
| 80 | if (gfs2_inode_cachep) | |
| 81 | kmem_cache_destroy(gfs2_inode_cachep); | |
| 82 | ||
| 83 | if (gfs2_glock_cachep) | |
| 84 | kmem_cache_destroy(gfs2_glock_cachep); | |
| 85 | ||
| 86 | gfs2_sys_uninit(); | |
| 87 | return error; | |
| 88 | } | |
| 89 | ||
| 90 | /** | |
| 91 | * exit_gfs2_fs - Unregister the file system | |
| 92 | * | |
| 93 | */ | |
| 94 | ||
| 95 | static void __exit exit_gfs2_fs(void) | |
| 96 | { | |
| 97 | unregister_filesystem(&gfs2_fs_type); | |
| 419c93e0 | 98 | unregister_filesystem(&gfs2meta_fs_type); |
| b3b94faa DT |
99 | |
| 100 | kmem_cache_destroy(gfs2_bufdata_cachep); | |
| 101 | kmem_cache_destroy(gfs2_inode_cachep); | |
| 102 | kmem_cache_destroy(gfs2_glock_cachep); | |
| 103 | ||
| 104 | gfs2_sys_uninit(); | |
| 105 | } | |
| 106 | ||
| 107 | MODULE_DESCRIPTION("Global File System"); | |
| 108 | MODULE_AUTHOR("Red Hat, Inc."); | |
| 109 | MODULE_LICENSE("GPL"); | |
| 110 | ||
| 111 | module_init(init_gfs2_fs); | |
| 112 | module_exit(exit_gfs2_fs); | |
| 113 |