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Commit | Line | Data |
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7336d0e6 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
b3b94faa DT |
2 | /* |
3 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3a8a9a10 | 4 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
5 | */ |
6 | ||
d77d1b58 JP |
7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
8 | ||
b3b94faa DT |
9 | #include <linux/slab.h> |
10 | #include <linux/spinlock.h> | |
11 | #include <linux/completion.h> | |
12 | #include <linux/buffer_head.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/init.h> | |
5c676f6d | 15 | #include <linux/gfs2_ondisk.h> |
bc015cb8 SW |
16 | #include <linux/rcupdate.h> |
17 | #include <linux/rculist_bl.h> | |
60063497 | 18 | #include <linux/atomic.h> |
75ca61c1 | 19 | #include <linux/mempool.h> |
b3b94faa DT |
20 | |
21 | #include "gfs2.h" | |
5c676f6d | 22 | #include "incore.h" |
b2760583 | 23 | #include "super.h" |
b3b94faa | 24 | #include "sys.h" |
5c676f6d | 25 | #include "util.h" |
85d1da67 | 26 | #include "glock.h" |
0a7ab79c | 27 | #include "quota.h" |
6ecd7c2d | 28 | #include "recovery.h" |
8d123585 | 29 | #include "dir.h" |
2e60d768 | 30 | #include "glops.h" |
0a7ab79c | 31 | |
e0c2a9aa DT |
32 | struct workqueue_struct *gfs2_control_wq; |
33 | ||
51cc5068 | 34 | static void gfs2_init_inode_once(void *foo) |
320dd101 SW |
35 | { |
36 | struct gfs2_inode *ip = foo; | |
a35afb83 CL |
37 | |
38 | inode_init_once(&ip->i_inode); | |
21f09c43 | 39 | atomic_set(&ip->i_sizehint, 0); |
a35afb83 | 40 | init_rwsem(&ip->i_rw_mutex); |
813e0c46 | 41 | INIT_LIST_HEAD(&ip->i_trunc_list); |
7542486b | 42 | INIT_LIST_HEAD(&ip->i_ordered); |
b54e9a0b | 43 | ip->i_qadata = NULL; |
21f09c43 | 44 | gfs2_holder_mark_uninitialized(&ip->i_rgd_gh); |
a097dc7e BP |
45 | memset(&ip->i_res, 0, sizeof(ip->i_res)); |
46 | RB_CLEAR_NODE(&ip->i_res.rs_node); | |
17d539f0 | 47 | ip->i_hash_cache = NULL; |
6df9f9a2 | 48 | gfs2_holder_mark_uninitialized(&ip->i_iopen_gh); |
320dd101 SW |
49 | } |
50 | ||
51cc5068 | 51 | static void gfs2_init_glock_once(void *foo) |
ec45d9f5 SW |
52 | { |
53 | struct gfs2_glock *gl = foo; | |
a35afb83 | 54 | |
f3dd1649 | 55 | spin_lock_init(&gl->gl_lockref.lock); |
a35afb83 | 56 | INIT_LIST_HEAD(&gl->gl_holders); |
97cc1025 | 57 | INIT_LIST_HEAD(&gl->gl_lru); |
a35afb83 CL |
58 | INIT_LIST_HEAD(&gl->gl_ail_list); |
59 | atomic_set(&gl->gl_ail_count, 0); | |
638803d4 | 60 | atomic_set(&gl->gl_revokes, 0); |
ec45d9f5 SW |
61 | } |
62 | ||
009d8518 SW |
63 | static void gfs2_init_gl_aspace_once(void *foo) |
64 | { | |
65 | struct gfs2_glock *gl = foo; | |
66 | struct address_space *mapping = (struct address_space *)(gl + 1); | |
67 | ||
68 | gfs2_init_glock_once(gl); | |
2aa15890 | 69 | address_space_init_once(mapping); |
009d8518 SW |
70 | } |
71 | ||
b3b94faa DT |
72 | /** |
73 | * init_gfs2_fs - Register GFS2 as a filesystem | |
74 | * | |
75 | * Returns: 0 on success, error code on failure | |
76 | */ | |
77 | ||
78 | static int __init init_gfs2_fs(void) | |
79 | { | |
80 | int error; | |
81 | ||
8d123585 SW |
82 | gfs2_str2qstr(&gfs2_qdot, "."); |
83 | gfs2_str2qstr(&gfs2_qdotdot, ".."); | |
c754fbbb | 84 | gfs2_quota_hash_init(); |
8d123585 | 85 | |
b3b94faa DT |
86 | error = gfs2_sys_init(); |
87 | if (error) | |
88 | return error; | |
89 | ||
2147dbfd SW |
90 | error = list_lru_init(&gfs2_qd_lru); |
91 | if (error) | |
92 | goto fail_lru; | |
93 | ||
85d1da67 SW |
94 | error = gfs2_glock_init(); |
95 | if (error) | |
8b0d7f56 | 96 | goto fail_glock; |
b3b94faa | 97 | |
85d1da67 | 98 | error = -ENOMEM; |
b3b94faa DT |
99 | gfs2_glock_cachep = kmem_cache_create("gfs2_glock", |
100 | sizeof(struct gfs2_glock), | |
00e8e9bc | 101 | 0, SLAB_RECLAIM_ACCOUNT, |
20c2df83 | 102 | gfs2_init_glock_once); |
b3b94faa | 103 | if (!gfs2_glock_cachep) |
8b0d7f56 | 104 | goto fail_cachep1; |
b3b94faa | 105 | |
7c9a84a5 | 106 | gfs2_glock_aspace_cachep = kmem_cache_create("gfs2_glock(aspace)", |
009d8518 SW |
107 | sizeof(struct gfs2_glock) + |
108 | sizeof(struct address_space), | |
109 | 0, 0, gfs2_init_gl_aspace_once); | |
110 | ||
111 | if (!gfs2_glock_aspace_cachep) | |
8b0d7f56 | 112 | goto fail_cachep2; |
009d8518 | 113 | |
b3b94faa DT |
114 | gfs2_inode_cachep = kmem_cache_create("gfs2_inode", |
115 | sizeof(struct gfs2_inode), | |
eb1dc33a | 116 | 0, SLAB_RECLAIM_ACCOUNT| |
5d097056 VD |
117 | SLAB_MEM_SPREAD| |
118 | SLAB_ACCOUNT, | |
20c2df83 | 119 | gfs2_init_inode_once); |
b3b94faa | 120 | if (!gfs2_inode_cachep) |
8b0d7f56 | 121 | goto fail_cachep3; |
b3b94faa DT |
122 | |
123 | gfs2_bufdata_cachep = kmem_cache_create("gfs2_bufdata", | |
124 | sizeof(struct gfs2_bufdata), | |
20c2df83 | 125 | 0, 0, NULL); |
b3b94faa | 126 | if (!gfs2_bufdata_cachep) |
8b0d7f56 | 127 | goto fail_cachep4; |
b3b94faa | 128 | |
6bdd9be6 BP |
129 | gfs2_rgrpd_cachep = kmem_cache_create("gfs2_rgrpd", |
130 | sizeof(struct gfs2_rgrpd), | |
131 | 0, 0, NULL); | |
132 | if (!gfs2_rgrpd_cachep) | |
8b0d7f56 | 133 | goto fail_cachep5; |
6bdd9be6 | 134 | |
37b2c837 SW |
135 | gfs2_quotad_cachep = kmem_cache_create("gfs2_quotad", |
136 | sizeof(struct gfs2_quota_data), | |
00e8e9bc | 137 | 0, SLAB_RECLAIM_ACCOUNT, NULL); |
37b2c837 | 138 | if (!gfs2_quotad_cachep) |
8b0d7f56 | 139 | goto fail_cachep6; |
37b2c837 | 140 | |
b54e9a0b BP |
141 | gfs2_qadata_cachep = kmem_cache_create("gfs2_qadata", |
142 | sizeof(struct gfs2_qadata), | |
143 | 0, 0, NULL); | |
144 | if (!gfs2_qadata_cachep) | |
8b0d7f56 | 145 | goto fail_cachep7; |
b54e9a0b | 146 | |
b839dada BP |
147 | gfs2_trans_cachep = kmem_cache_create("gfs2_trans", |
148 | sizeof(struct gfs2_trans), | |
149 | 0, 0, NULL); | |
150 | if (!gfs2_trans_cachep) | |
151 | goto fail_cachep8; | |
152 | ||
e0d735c1 CY |
153 | error = register_shrinker(&gfs2_qd_shrinker); |
154 | if (error) | |
8b0d7f56 | 155 | goto fail_shrinker; |
0a7ab79c | 156 | |
b3b94faa DT |
157 | error = register_filesystem(&gfs2_fs_type); |
158 | if (error) | |
8b0d7f56 | 159 | goto fail_fs1; |
b3b94faa | 160 | |
419c93e0 SW |
161 | error = register_filesystem(&gfs2meta_fs_type); |
162 | if (error) | |
8b0d7f56 | 163 | goto fail_fs2; |
419c93e0 | 164 | |
6ecd7c2d TH |
165 | error = -ENOMEM; |
166 | gfs_recovery_wq = alloc_workqueue("gfs_recovery", | |
58a69cb4 | 167 | WQ_MEM_RECLAIM | WQ_FREEZABLE, 0); |
6ecd7c2d | 168 | if (!gfs_recovery_wq) |
8b0d7f56 | 169 | goto fail_wq1; |
fe64d517 | 170 | |
e0c2a9aa | 171 | gfs2_control_wq = alloc_workqueue("gfs2_control", |
d08fa65a | 172 | WQ_UNBOUND | WQ_FREEZABLE, 0); |
e0c2a9aa | 173 | if (!gfs2_control_wq) |
8b0d7f56 | 174 | goto fail_wq2; |
75ca61c1 | 175 | |
2e60d768 BM |
176 | gfs2_freeze_wq = alloc_workqueue("freeze_workqueue", 0, 0); |
177 | ||
178 | if (!gfs2_freeze_wq) | |
8b0d7f56 | 179 | goto fail_wq3; |
2e60d768 | 180 | |
e8c92ed7 SW |
181 | gfs2_page_pool = mempool_create_page_pool(64, 0); |
182 | if (!gfs2_page_pool) | |
8b0d7f56 | 183 | goto fail_mempool; |
e0c2a9aa | 184 | |
2abbf9a4 | 185 | gfs2_register_debugfs(); |
7c52b166 | 186 | |
fc554ed3 | 187 | pr_info("GFS2 installed\n"); |
b3b94faa DT |
188 | |
189 | return 0; | |
190 | ||
8b0d7f56 | 191 | fail_mempool: |
2e60d768 | 192 | destroy_workqueue(gfs2_freeze_wq); |
8b0d7f56 | 193 | fail_wq3: |
75ca61c1 | 194 | destroy_workqueue(gfs2_control_wq); |
8b0d7f56 | 195 | fail_wq2: |
e0c2a9aa | 196 | destroy_workqueue(gfs_recovery_wq); |
8b0d7f56 | 197 | fail_wq1: |
fe64d517 | 198 | unregister_filesystem(&gfs2meta_fs_type); |
8b0d7f56 | 199 | fail_fs2: |
419c93e0 | 200 | unregister_filesystem(&gfs2_fs_type); |
8b0d7f56 | 201 | fail_fs1: |
2147dbfd | 202 | unregister_shrinker(&gfs2_qd_shrinker); |
8b0d7f56 | 203 | fail_shrinker: |
b839dada BP |
204 | kmem_cache_destroy(gfs2_trans_cachep); |
205 | fail_cachep8: | |
8b0d7f56 TH |
206 | kmem_cache_destroy(gfs2_qadata_cachep); |
207 | fail_cachep7: | |
208 | kmem_cache_destroy(gfs2_quotad_cachep); | |
209 | fail_cachep6: | |
210 | kmem_cache_destroy(gfs2_rgrpd_cachep); | |
211 | fail_cachep5: | |
212 | kmem_cache_destroy(gfs2_bufdata_cachep); | |
213 | fail_cachep4: | |
214 | kmem_cache_destroy(gfs2_inode_cachep); | |
215 | fail_cachep3: | |
216 | kmem_cache_destroy(gfs2_glock_aspace_cachep); | |
217 | fail_cachep2: | |
218 | kmem_cache_destroy(gfs2_glock_cachep); | |
219 | fail_cachep1: | |
8fbbfd21 | 220 | gfs2_glock_exit(); |
8b0d7f56 TH |
221 | fail_glock: |
222 | list_lru_destroy(&gfs2_qd_lru); | |
223 | fail_lru: | |
b3b94faa DT |
224 | gfs2_sys_uninit(); |
225 | return error; | |
226 | } | |
227 | ||
228 | /** | |
229 | * exit_gfs2_fs - Unregister the file system | |
230 | * | |
231 | */ | |
232 | ||
233 | static void __exit exit_gfs2_fs(void) | |
234 | { | |
2147dbfd | 235 | unregister_shrinker(&gfs2_qd_shrinker); |
8fbbfd21 | 236 | gfs2_glock_exit(); |
7c52b166 | 237 | gfs2_unregister_debugfs(); |
b3b94faa | 238 | unregister_filesystem(&gfs2_fs_type); |
419c93e0 | 239 | unregister_filesystem(&gfs2meta_fs_type); |
6ecd7c2d | 240 | destroy_workqueue(gfs_recovery_wq); |
e0c2a9aa | 241 | destroy_workqueue(gfs2_control_wq); |
2e60d768 | 242 | destroy_workqueue(gfs2_freeze_wq); |
2147dbfd | 243 | list_lru_destroy(&gfs2_qd_lru); |
b3b94faa | 244 | |
bc015cb8 SW |
245 | rcu_barrier(); |
246 | ||
e8c92ed7 | 247 | mempool_destroy(gfs2_page_pool); |
b839dada | 248 | kmem_cache_destroy(gfs2_trans_cachep); |
b54e9a0b | 249 | kmem_cache_destroy(gfs2_qadata_cachep); |
37b2c837 | 250 | kmem_cache_destroy(gfs2_quotad_cachep); |
6bdd9be6 | 251 | kmem_cache_destroy(gfs2_rgrpd_cachep); |
b3b94faa DT |
252 | kmem_cache_destroy(gfs2_bufdata_cachep); |
253 | kmem_cache_destroy(gfs2_inode_cachep); | |
009d8518 | 254 | kmem_cache_destroy(gfs2_glock_aspace_cachep); |
b3b94faa DT |
255 | kmem_cache_destroy(gfs2_glock_cachep); |
256 | ||
257 | gfs2_sys_uninit(); | |
258 | } | |
259 | ||
260 | MODULE_DESCRIPTION("Global File System"); | |
261 | MODULE_AUTHOR("Red Hat, Inc."); | |
262 | MODULE_LICENSE("GPL"); | |
263 | ||
264 | module_init(init_gfs2_fs); | |
265 | module_exit(exit_gfs2_fs); | |
266 |