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Commit | Line | Data |
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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/vmalloc.h> | |
16 | #include <linux/blkdev.h> | |
17 | #include <linux/kthread.h> | |
5c676f6d | 18 | #include <linux/gfs2_ondisk.h> |
b3b94faa DT |
19 | |
20 | #include "gfs2.h" | |
5c676f6d SW |
21 | #include "lm_interface.h" |
22 | #include "incore.h" | |
b3b94faa DT |
23 | #include "daemon.h" |
24 | #include "glock.h" | |
25 | #include "glops.h" | |
26 | #include "inode.h" | |
27 | #include "lm.h" | |
28 | #include "mount.h" | |
29 | #include "ops_export.h" | |
30 | #include "ops_fstype.h" | |
31 | #include "ops_super.h" | |
32 | #include "recovery.h" | |
33 | #include "rgrp.h" | |
34 | #include "super.h" | |
b3b94faa | 35 | #include "sys.h" |
5c676f6d | 36 | #include "util.h" |
b3b94faa DT |
37 | |
38 | #define DO 0 | |
39 | #define UNDO 1 | |
40 | ||
5bb76af1 RP |
41 | extern struct dentry_operations gfs2_dops; |
42 | ||
b3b94faa DT |
43 | static struct gfs2_sbd *init_sbd(struct super_block *sb) |
44 | { | |
45 | struct gfs2_sbd *sdp; | |
46 | unsigned int x; | |
47 | ||
48 | sdp = vmalloc(sizeof(struct gfs2_sbd)); | |
49 | if (!sdp) | |
50 | return NULL; | |
51 | ||
52 | memset(sdp, 0, sizeof(struct gfs2_sbd)); | |
53 | ||
5c676f6d | 54 | sb->s_fs_info = sdp; |
b3b94faa DT |
55 | sdp->sd_vfs = sb; |
56 | ||
57 | gfs2_tune_init(&sdp->sd_tune); | |
58 | ||
59 | for (x = 0; x < GFS2_GL_HASH_SIZE; x++) { | |
ecb1460d | 60 | rwlock_init(&sdp->sd_gl_hash[x].hb_lock); |
b3b94faa DT |
61 | INIT_LIST_HEAD(&sdp->sd_gl_hash[x].hb_list); |
62 | } | |
63 | INIT_LIST_HEAD(&sdp->sd_reclaim_list); | |
64 | spin_lock_init(&sdp->sd_reclaim_lock); | |
65 | init_waitqueue_head(&sdp->sd_reclaim_wq); | |
b3b94faa | 66 | |
f55ab26a | 67 | mutex_init(&sdp->sd_inum_mutex); |
b3b94faa | 68 | spin_lock_init(&sdp->sd_statfs_spin); |
f55ab26a | 69 | mutex_init(&sdp->sd_statfs_mutex); |
b3b94faa DT |
70 | |
71 | spin_lock_init(&sdp->sd_rindex_spin); | |
f55ab26a | 72 | mutex_init(&sdp->sd_rindex_mutex); |
b3b94faa DT |
73 | INIT_LIST_HEAD(&sdp->sd_rindex_list); |
74 | INIT_LIST_HEAD(&sdp->sd_rindex_mru_list); | |
75 | INIT_LIST_HEAD(&sdp->sd_rindex_recent_list); | |
76 | ||
77 | INIT_LIST_HEAD(&sdp->sd_jindex_list); | |
78 | spin_lock_init(&sdp->sd_jindex_spin); | |
f55ab26a | 79 | mutex_init(&sdp->sd_jindex_mutex); |
b3b94faa | 80 | |
b3b94faa DT |
81 | INIT_LIST_HEAD(&sdp->sd_quota_list); |
82 | spin_lock_init(&sdp->sd_quota_spin); | |
f55ab26a | 83 | mutex_init(&sdp->sd_quota_mutex); |
b3b94faa DT |
84 | |
85 | spin_lock_init(&sdp->sd_log_lock); | |
b3b94faa DT |
86 | |
87 | INIT_LIST_HEAD(&sdp->sd_log_le_gl); | |
88 | INIT_LIST_HEAD(&sdp->sd_log_le_buf); | |
89 | INIT_LIST_HEAD(&sdp->sd_log_le_revoke); | |
90 | INIT_LIST_HEAD(&sdp->sd_log_le_rg); | |
91 | INIT_LIST_HEAD(&sdp->sd_log_le_databuf); | |
92 | ||
71b86f56 | 93 | mutex_init(&sdp->sd_log_reserve_mutex); |
b3b94faa DT |
94 | INIT_LIST_HEAD(&sdp->sd_ail1_list); |
95 | INIT_LIST_HEAD(&sdp->sd_ail2_list); | |
96 | ||
484adff8 | 97 | init_rwsem(&sdp->sd_log_flush_lock); |
b3b94faa DT |
98 | INIT_LIST_HEAD(&sdp->sd_log_flush_list); |
99 | ||
100 | INIT_LIST_HEAD(&sdp->sd_revoke_list); | |
101 | ||
f55ab26a | 102 | mutex_init(&sdp->sd_freeze_lock); |
b3b94faa DT |
103 | |
104 | return sdp; | |
105 | } | |
106 | ||
419c93e0 | 107 | static void init_vfs(struct super_block *sb, unsigned noatime) |
b3b94faa | 108 | { |
419c93e0 | 109 | struct gfs2_sbd *sdp = sb->s_fs_info; |
b3b94faa DT |
110 | |
111 | sb->s_magic = GFS2_MAGIC; | |
112 | sb->s_op = &gfs2_super_ops; | |
113 | sb->s_export_op = &gfs2_export_ops; | |
114 | sb->s_maxbytes = MAX_LFS_FILESIZE; | |
115 | ||
116 | if (sb->s_flags & (MS_NOATIME | MS_NODIRATIME)) | |
419c93e0 | 117 | set_bit(noatime, &sdp->sd_flags); |
b3b94faa DT |
118 | |
119 | /* Don't let the VFS update atimes. GFS2 handles this itself. */ | |
120 | sb->s_flags |= MS_NOATIME | MS_NODIRATIME; | |
b3b94faa DT |
121 | } |
122 | ||
123 | static int init_names(struct gfs2_sbd *sdp, int silent) | |
124 | { | |
125 | struct gfs2_sb *sb = NULL; | |
126 | char *proto, *table; | |
127 | int error = 0; | |
128 | ||
129 | proto = sdp->sd_args.ar_lockproto; | |
130 | table = sdp->sd_args.ar_locktable; | |
131 | ||
132 | /* Try to autodetect */ | |
133 | ||
134 | if (!proto[0] || !table[0]) { | |
135 | struct buffer_head *bh; | |
136 | bh = sb_getblk(sdp->sd_vfs, | |
137 | GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); | |
138 | lock_buffer(bh); | |
139 | clear_buffer_uptodate(bh); | |
140 | clear_buffer_dirty(bh); | |
141 | unlock_buffer(bh); | |
142 | ll_rw_block(READ, 1, &bh); | |
143 | wait_on_buffer(bh); | |
144 | ||
145 | if (!buffer_uptodate(bh)) { | |
146 | brelse(bh); | |
147 | return -EIO; | |
148 | } | |
149 | ||
150 | sb = kmalloc(sizeof(struct gfs2_sb), GFP_KERNEL); | |
151 | if (!sb) { | |
152 | brelse(bh); | |
153 | return -ENOMEM; | |
154 | } | |
155 | gfs2_sb_in(sb, bh->b_data); | |
156 | brelse(bh); | |
157 | ||
158 | error = gfs2_check_sb(sdp, sb, silent); | |
159 | if (error) | |
160 | goto out; | |
161 | ||
162 | if (!proto[0]) | |
163 | proto = sb->sb_lockproto; | |
164 | if (!table[0]) | |
165 | table = sb->sb_locktable; | |
166 | } | |
167 | ||
168 | if (!table[0]) | |
169 | table = sdp->sd_vfs->s_id; | |
170 | ||
171 | snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto); | |
172 | snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table); | |
173 | ||
174 | out: | |
175 | kfree(sb); | |
176 | ||
177 | return error; | |
178 | } | |
179 | ||
180 | static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, | |
181 | int undo) | |
182 | { | |
183 | struct task_struct *p; | |
184 | int error = 0; | |
185 | ||
186 | if (undo) | |
187 | goto fail_trans; | |
188 | ||
189 | p = kthread_run(gfs2_scand, sdp, "gfs2_scand"); | |
190 | error = IS_ERR(p); | |
191 | if (error) { | |
192 | fs_err(sdp, "can't start scand thread: %d\n", error); | |
193 | return error; | |
194 | } | |
195 | sdp->sd_scand_process = p; | |
196 | ||
197 | for (sdp->sd_glockd_num = 0; | |
198 | sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd; | |
199 | sdp->sd_glockd_num++) { | |
200 | p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd"); | |
201 | error = IS_ERR(p); | |
202 | if (error) { | |
203 | fs_err(sdp, "can't start glockd thread: %d\n", error); | |
204 | goto fail; | |
205 | } | |
206 | sdp->sd_glockd_process[sdp->sd_glockd_num] = p; | |
207 | } | |
208 | ||
209 | error = gfs2_glock_nq_num(sdp, | |
210 | GFS2_MOUNT_LOCK, &gfs2_nondisk_glops, | |
211 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE, | |
212 | mount_gh); | |
213 | if (error) { | |
214 | fs_err(sdp, "can't acquire mount glock: %d\n", error); | |
215 | goto fail; | |
216 | } | |
217 | ||
218 | error = gfs2_glock_nq_num(sdp, | |
219 | GFS2_LIVE_LOCK, &gfs2_nondisk_glops, | |
220 | LM_ST_SHARED, | |
579b78a4 | 221 | LM_FLAG_NOEXP | GL_EXACT, |
b3b94faa DT |
222 | &sdp->sd_live_gh); |
223 | if (error) { | |
224 | fs_err(sdp, "can't acquire live glock: %d\n", error); | |
225 | goto fail_mount; | |
226 | } | |
227 | ||
228 | error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops, | |
229 | CREATE, &sdp->sd_rename_gl); | |
230 | if (error) { | |
231 | fs_err(sdp, "can't create rename glock: %d\n", error); | |
232 | goto fail_live; | |
233 | } | |
234 | ||
235 | error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops, | |
236 | CREATE, &sdp->sd_trans_gl); | |
237 | if (error) { | |
238 | fs_err(sdp, "can't create transaction glock: %d\n", error); | |
239 | goto fail_rename; | |
240 | } | |
241 | set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags); | |
242 | ||
243 | return 0; | |
244 | ||
feaa7bba | 245 | fail_trans: |
b3b94faa DT |
246 | gfs2_glock_put(sdp->sd_trans_gl); |
247 | ||
feaa7bba | 248 | fail_rename: |
b3b94faa DT |
249 | gfs2_glock_put(sdp->sd_rename_gl); |
250 | ||
feaa7bba | 251 | fail_live: |
b3b94faa DT |
252 | gfs2_glock_dq_uninit(&sdp->sd_live_gh); |
253 | ||
feaa7bba | 254 | fail_mount: |
b3b94faa DT |
255 | gfs2_glock_dq_uninit(mount_gh); |
256 | ||
feaa7bba | 257 | fail: |
b3b94faa DT |
258 | while (sdp->sd_glockd_num--) |
259 | kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]); | |
260 | ||
261 | kthread_stop(sdp->sd_scand_process); | |
262 | ||
263 | return error; | |
264 | } | |
265 | ||
feaa7bba SW |
266 | static struct inode *gfs2_lookup_root(struct super_block *sb, |
267 | struct gfs2_inum *inum) | |
f42faf4f | 268 | { |
feaa7bba | 269 | return gfs2_inode_lookup(sb, inum, DT_DIR); |
f42faf4f SW |
270 | } |
271 | ||
b3b94faa DT |
272 | static int init_sb(struct gfs2_sbd *sdp, int silent, int undo) |
273 | { | |
274 | struct super_block *sb = sdp->sd_vfs; | |
275 | struct gfs2_holder sb_gh; | |
419c93e0 | 276 | struct gfs2_inum *inum; |
f42faf4f | 277 | struct inode *inode; |
b3b94faa DT |
278 | int error = 0; |
279 | ||
280 | if (undo) { | |
88721877 RC |
281 | if (sb->s_root) { |
282 | dput(sb->s_root); | |
283 | sb->s_root = NULL; | |
284 | } | |
b3b94faa DT |
285 | return 0; |
286 | } | |
287 | ||
feaa7bba | 288 | error = gfs2_glock_nq_num(sdp, GFS2_SB_LOCK, &gfs2_meta_glops, |
b3b94faa DT |
289 | LM_ST_SHARED, 0, &sb_gh); |
290 | if (error) { | |
291 | fs_err(sdp, "can't acquire superblock glock: %d\n", error); | |
292 | return error; | |
293 | } | |
294 | ||
295 | error = gfs2_read_sb(sdp, sb_gh.gh_gl, silent); | |
296 | if (error) { | |
297 | fs_err(sdp, "can't read superblock: %d\n", error); | |
298 | goto out; | |
299 | } | |
300 | ||
301 | /* Set up the buffer cache and SB for real */ | |
b3b94faa | 302 | if (sdp->sd_sb.sb_bsize < bdev_hardsect_size(sb->s_bdev)) { |
419c93e0 | 303 | error = -EINVAL; |
b3b94faa DT |
304 | fs_err(sdp, "FS block size (%u) is too small for device " |
305 | "block size (%u)\n", | |
306 | sdp->sd_sb.sb_bsize, bdev_hardsect_size(sb->s_bdev)); | |
307 | goto out; | |
308 | } | |
309 | if (sdp->sd_sb.sb_bsize > PAGE_SIZE) { | |
419c93e0 | 310 | error = -EINVAL; |
b3b94faa DT |
311 | fs_err(sdp, "FS block size (%u) is too big for machine " |
312 | "page size (%u)\n", | |
313 | sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE); | |
314 | goto out; | |
315 | } | |
b3b94faa DT |
316 | sb_set_blocksize(sb, sdp->sd_sb.sb_bsize); |
317 | ||
f42faf4f | 318 | /* Get the root inode */ |
419c93e0 SW |
319 | inum = &sdp->sd_sb.sb_root_dir; |
320 | if (sb->s_type == &gfs2meta_fs_type) | |
321 | inum = &sdp->sd_sb.sb_master_dir; | |
feaa7bba | 322 | inode = gfs2_lookup_root(sb, inum); |
c9fd4307 SW |
323 | if (IS_ERR(inode)) { |
324 | error = PTR_ERR(inode); | |
f42faf4f SW |
325 | fs_err(sdp, "can't read in root inode: %d\n", error); |
326 | goto out; | |
327 | } | |
b3b94faa | 328 | |
f42faf4f SW |
329 | sb->s_root = d_alloc_root(inode); |
330 | if (!sb->s_root) { | |
331 | fs_err(sdp, "can't get root dentry\n"); | |
332 | error = -ENOMEM; | |
c9fd4307 | 333 | iput(inode); |
f42faf4f | 334 | } |
5bb76af1 | 335 | sb->s_root->d_op = &gfs2_dops; |
f42faf4f | 336 | out: |
b3b94faa | 337 | gfs2_glock_dq_uninit(&sb_gh); |
b3b94faa DT |
338 | return error; |
339 | } | |
340 | ||
341 | static int init_journal(struct gfs2_sbd *sdp, int undo) | |
342 | { | |
343 | struct gfs2_holder ji_gh; | |
344 | struct task_struct *p; | |
5c676f6d | 345 | struct gfs2_inode *ip; |
b3b94faa DT |
346 | int jindex = 1; |
347 | int error = 0; | |
348 | ||
349 | if (undo) { | |
350 | jindex = 0; | |
351 | goto fail_recoverd; | |
352 | } | |
353 | ||
c752666c SW |
354 | sdp->sd_jindex = gfs2_lookup_simple(sdp->sd_master_dir, "jindex"); |
355 | if (IS_ERR(sdp->sd_jindex)) { | |
b3b94faa | 356 | fs_err(sdp, "can't lookup journal index: %d\n", error); |
c752666c | 357 | return PTR_ERR(sdp->sd_jindex); |
b3b94faa | 358 | } |
feaa7bba | 359 | ip = GFS2_I(sdp->sd_jindex); |
5c676f6d | 360 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
b3b94faa DT |
361 | |
362 | /* Load in the journal index special file */ | |
363 | ||
364 | error = gfs2_jindex_hold(sdp, &ji_gh); | |
365 | if (error) { | |
366 | fs_err(sdp, "can't read journal index: %d\n", error); | |
367 | goto fail; | |
368 | } | |
369 | ||
370 | error = -EINVAL; | |
371 | if (!gfs2_jindex_size(sdp)) { | |
372 | fs_err(sdp, "no journals!\n"); | |
373 | goto fail_jindex; | |
374 | } | |
375 | ||
376 | if (sdp->sd_args.ar_spectator) { | |
377 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0); | |
378 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; | |
379 | } else { | |
380 | if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) { | |
381 | fs_err(sdp, "can't mount journal #%u\n", | |
382 | sdp->sd_lockstruct.ls_jid); | |
383 | fs_err(sdp, "there are only %u journals (0 - %u)\n", | |
384 | gfs2_jindex_size(sdp), | |
385 | gfs2_jindex_size(sdp) - 1); | |
386 | goto fail_jindex; | |
387 | } | |
388 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid); | |
389 | ||
feaa7bba | 390 | error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid, |
b3b94faa DT |
391 | &gfs2_journal_glops, |
392 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP, | |
393 | &sdp->sd_journal_gh); | |
394 | if (error) { | |
395 | fs_err(sdp, "can't acquire journal glock: %d\n", error); | |
396 | goto fail_jindex; | |
397 | } | |
398 | ||
feaa7bba SW |
399 | ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
400 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, | |
b3b94faa DT |
401 | LM_FLAG_NOEXP | GL_EXACT, |
402 | &sdp->sd_jinode_gh); | |
403 | if (error) { | |
404 | fs_err(sdp, "can't acquire journal inode glock: %d\n", | |
405 | error); | |
406 | goto fail_journal_gh; | |
407 | } | |
408 | ||
409 | error = gfs2_jdesc_check(sdp->sd_jdesc); | |
410 | if (error) { | |
411 | fs_err(sdp, "my journal (%u) is bad: %d\n", | |
412 | sdp->sd_jdesc->jd_jid, error); | |
413 | goto fail_jinode_gh; | |
414 | } | |
415 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; | |
416 | } | |
417 | ||
418 | if (sdp->sd_lockstruct.ls_first) { | |
419 | unsigned int x; | |
420 | for (x = 0; x < sdp->sd_journals; x++) { | |
c63e31c2 | 421 | error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x)); |
b3b94faa DT |
422 | if (error) { |
423 | fs_err(sdp, "error recovering journal %u: %d\n", | |
424 | x, error); | |
425 | goto fail_jinode_gh; | |
426 | } | |
427 | } | |
428 | ||
429 | gfs2_lm_others_may_mount(sdp); | |
430 | } else if (!sdp->sd_args.ar_spectator) { | |
c63e31c2 | 431 | error = gfs2_recover_journal(sdp->sd_jdesc); |
b3b94faa DT |
432 | if (error) { |
433 | fs_err(sdp, "error recovering my journal: %d\n", error); | |
434 | goto fail_jinode_gh; | |
435 | } | |
436 | } | |
437 | ||
438 | set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags); | |
439 | gfs2_glock_dq_uninit(&ji_gh); | |
440 | jindex = 0; | |
441 | ||
b3b94faa DT |
442 | p = kthread_run(gfs2_recoverd, sdp, "gfs2_recoverd"); |
443 | error = IS_ERR(p); | |
444 | if (error) { | |
445 | fs_err(sdp, "can't start recoverd thread: %d\n", error); | |
446 | goto fail_jinode_gh; | |
447 | } | |
448 | sdp->sd_recoverd_process = p; | |
449 | ||
450 | return 0; | |
451 | ||
452 | fail_recoverd: | |
453 | kthread_stop(sdp->sd_recoverd_process); | |
454 | ||
455 | fail_jinode_gh: | |
456 | if (!sdp->sd_args.ar_spectator) | |
457 | gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); | |
458 | ||
459 | fail_journal_gh: | |
460 | if (!sdp->sd_args.ar_spectator) | |
461 | gfs2_glock_dq_uninit(&sdp->sd_journal_gh); | |
462 | ||
463 | fail_jindex: | |
464 | gfs2_jindex_free(sdp); | |
465 | if (jindex) | |
466 | gfs2_glock_dq_uninit(&ji_gh); | |
467 | ||
468 | fail: | |
f42faf4f | 469 | iput(sdp->sd_jindex); |
b3b94faa DT |
470 | |
471 | return error; | |
472 | } | |
473 | ||
b3b94faa DT |
474 | |
475 | static int init_inodes(struct gfs2_sbd *sdp, int undo) | |
476 | { | |
b3b94faa | 477 | int error = 0; |
5c676f6d | 478 | struct gfs2_inode *ip; |
c9fd4307 | 479 | struct inode *inode; |
b3b94faa DT |
480 | |
481 | if (undo) | |
f42faf4f SW |
482 | goto fail_qinode; |
483 | ||
feaa7bba | 484 | inode = gfs2_lookup_root(sdp->sd_vfs, &sdp->sd_sb.sb_master_dir); |
c9fd4307 SW |
485 | if (IS_ERR(inode)) { |
486 | error = PTR_ERR(inode); | |
f42faf4f SW |
487 | fs_err(sdp, "can't read in master directory: %d\n", error); |
488 | goto fail; | |
489 | } | |
c9fd4307 | 490 | sdp->sd_master_dir = inode; |
f42faf4f SW |
491 | |
492 | error = init_journal(sdp, undo); | |
493 | if (error) | |
494 | goto fail_master; | |
b3b94faa DT |
495 | |
496 | /* Read in the master inode number inode */ | |
c752666c SW |
497 | sdp->sd_inum_inode = gfs2_lookup_simple(sdp->sd_master_dir, "inum"); |
498 | if (IS_ERR(sdp->sd_inum_inode)) { | |
499 | error = PTR_ERR(sdp->sd_inum_inode); | |
b3b94faa | 500 | fs_err(sdp, "can't read in inum inode: %d\n", error); |
f42faf4f | 501 | goto fail_journal; |
b3b94faa DT |
502 | } |
503 | ||
f42faf4f | 504 | |
b3b94faa | 505 | /* Read in the master statfs inode */ |
c752666c SW |
506 | sdp->sd_statfs_inode = gfs2_lookup_simple(sdp->sd_master_dir, "statfs"); |
507 | if (IS_ERR(sdp->sd_statfs_inode)) { | |
508 | error = PTR_ERR(sdp->sd_statfs_inode); | |
b3b94faa | 509 | fs_err(sdp, "can't read in statfs inode: %d\n", error); |
f42faf4f | 510 | goto fail_inum; |
b3b94faa DT |
511 | } |
512 | ||
513 | /* Read in the resource index inode */ | |
c752666c SW |
514 | sdp->sd_rindex = gfs2_lookup_simple(sdp->sd_master_dir, "rindex"); |
515 | if (IS_ERR(sdp->sd_rindex)) { | |
516 | error = PTR_ERR(sdp->sd_rindex); | |
b3b94faa DT |
517 | fs_err(sdp, "can't get resource index inode: %d\n", error); |
518 | goto fail_statfs; | |
519 | } | |
feaa7bba | 520 | ip = GFS2_I(sdp->sd_rindex); |
5c676f6d SW |
521 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
522 | sdp->sd_rindex_vn = ip->i_gl->gl_vn - 1; | |
b3b94faa DT |
523 | |
524 | /* Read in the quota inode */ | |
c752666c SW |
525 | sdp->sd_quota_inode = gfs2_lookup_simple(sdp->sd_master_dir, "quota"); |
526 | if (IS_ERR(sdp->sd_quota_inode)) { | |
527 | error = PTR_ERR(sdp->sd_quota_inode); | |
b3b94faa DT |
528 | fs_err(sdp, "can't get quota file inode: %d\n", error); |
529 | goto fail_rindex; | |
530 | } | |
b3b94faa DT |
531 | return 0; |
532 | ||
f42faf4f SW |
533 | fail_qinode: |
534 | iput(sdp->sd_quota_inode); | |
b3b94faa | 535 | |
f42faf4f | 536 | fail_rindex: |
b3b94faa | 537 | gfs2_clear_rgrpd(sdp); |
f42faf4f | 538 | iput(sdp->sd_rindex); |
b3b94faa | 539 | |
f42faf4f SW |
540 | fail_statfs: |
541 | iput(sdp->sd_statfs_inode); | |
b3b94faa | 542 | |
f42faf4f SW |
543 | fail_inum: |
544 | iput(sdp->sd_inum_inode); | |
545 | fail_journal: | |
546 | init_journal(sdp, UNDO); | |
547 | fail_master: | |
548 | iput(sdp->sd_master_dir); | |
549 | fail: | |
b3b94faa DT |
550 | return error; |
551 | } | |
552 | ||
553 | static int init_per_node(struct gfs2_sbd *sdp, int undo) | |
554 | { | |
f42faf4f | 555 | struct inode *pn = NULL; |
b3b94faa DT |
556 | char buf[30]; |
557 | int error = 0; | |
5c676f6d | 558 | struct gfs2_inode *ip; |
b3b94faa DT |
559 | |
560 | if (sdp->sd_args.ar_spectator) | |
561 | return 0; | |
562 | ||
563 | if (undo) | |
564 | goto fail_qc_gh; | |
565 | ||
c752666c SW |
566 | pn = gfs2_lookup_simple(sdp->sd_master_dir, "per_node"); |
567 | if (IS_ERR(pn)) { | |
568 | error = PTR_ERR(pn); | |
b3b94faa DT |
569 | fs_err(sdp, "can't find per_node directory: %d\n", error); |
570 | return error; | |
571 | } | |
572 | ||
573 | sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid); | |
c752666c SW |
574 | sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf); |
575 | if (IS_ERR(sdp->sd_ir_inode)) { | |
576 | error = PTR_ERR(sdp->sd_ir_inode); | |
b3b94faa DT |
577 | fs_err(sdp, "can't find local \"ir\" file: %d\n", error); |
578 | goto fail; | |
579 | } | |
580 | ||
581 | sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); | |
c752666c SW |
582 | sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); |
583 | if (IS_ERR(sdp->sd_sc_inode)) { | |
584 | error = PTR_ERR(sdp->sd_sc_inode); | |
b3b94faa DT |
585 | fs_err(sdp, "can't find local \"sc\" file: %d\n", error); |
586 | goto fail_ir_i; | |
587 | } | |
588 | ||
b3b94faa | 589 | sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); |
c752666c SW |
590 | sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf); |
591 | if (IS_ERR(sdp->sd_qc_inode)) { | |
592 | error = PTR_ERR(sdp->sd_qc_inode); | |
b3b94faa DT |
593 | fs_err(sdp, "can't find local \"qc\" file: %d\n", error); |
594 | goto fail_ut_i; | |
595 | } | |
596 | ||
f42faf4f | 597 | iput(pn); |
b3b94faa DT |
598 | pn = NULL; |
599 | ||
feaa7bba | 600 | ip = GFS2_I(sdp->sd_ir_inode); |
5c676f6d | 601 | error = gfs2_glock_nq_init(ip->i_gl, |
579b78a4 | 602 | LM_ST_EXCLUSIVE, 0, |
b3b94faa DT |
603 | &sdp->sd_ir_gh); |
604 | if (error) { | |
605 | fs_err(sdp, "can't lock local \"ir\" file: %d\n", error); | |
606 | goto fail_qc_i; | |
607 | } | |
608 | ||
feaa7bba | 609 | ip = GFS2_I(sdp->sd_sc_inode); |
5c676f6d | 610 | error = gfs2_glock_nq_init(ip->i_gl, |
579b78a4 | 611 | LM_ST_EXCLUSIVE, 0, |
b3b94faa DT |
612 | &sdp->sd_sc_gh); |
613 | if (error) { | |
614 | fs_err(sdp, "can't lock local \"sc\" file: %d\n", error); | |
615 | goto fail_ir_gh; | |
616 | } | |
617 | ||
feaa7bba | 618 | ip = GFS2_I(sdp->sd_qc_inode); |
5c676f6d | 619 | error = gfs2_glock_nq_init(ip->i_gl, |
579b78a4 | 620 | LM_ST_EXCLUSIVE, 0, |
b3b94faa DT |
621 | &sdp->sd_qc_gh); |
622 | if (error) { | |
623 | fs_err(sdp, "can't lock local \"qc\" file: %d\n", error); | |
624 | goto fail_ut_gh; | |
625 | } | |
626 | ||
627 | return 0; | |
628 | ||
629 | fail_qc_gh: | |
630 | gfs2_glock_dq_uninit(&sdp->sd_qc_gh); | |
631 | ||
632 | fail_ut_gh: | |
b3b94faa | 633 | |
b3b94faa DT |
634 | gfs2_glock_dq_uninit(&sdp->sd_sc_gh); |
635 | ||
636 | fail_ir_gh: | |
637 | gfs2_glock_dq_uninit(&sdp->sd_ir_gh); | |
638 | ||
639 | fail_qc_i: | |
f42faf4f | 640 | iput(sdp->sd_qc_inode); |
b3b94faa DT |
641 | |
642 | fail_ut_i: | |
b3b94faa | 643 | |
f42faf4f | 644 | iput(sdp->sd_sc_inode); |
b3b94faa DT |
645 | |
646 | fail_ir_i: | |
f42faf4f | 647 | iput(sdp->sd_ir_inode); |
b3b94faa DT |
648 | |
649 | fail: | |
650 | if (pn) | |
f42faf4f | 651 | iput(pn); |
b3b94faa DT |
652 | return error; |
653 | } | |
654 | ||
655 | static int init_threads(struct gfs2_sbd *sdp, int undo) | |
656 | { | |
657 | struct task_struct *p; | |
658 | int error = 0; | |
659 | ||
660 | if (undo) | |
feaa7bba | 661 | goto fail_quotad; |
b3b94faa DT |
662 | |
663 | sdp->sd_log_flush_time = jiffies; | |
664 | sdp->sd_jindex_refresh_time = jiffies; | |
665 | ||
666 | p = kthread_run(gfs2_logd, sdp, "gfs2_logd"); | |
667 | error = IS_ERR(p); | |
668 | if (error) { | |
669 | fs_err(sdp, "can't start logd thread: %d\n", error); | |
670 | return error; | |
671 | } | |
672 | sdp->sd_logd_process = p; | |
673 | ||
674 | sdp->sd_statfs_sync_time = jiffies; | |
675 | sdp->sd_quota_sync_time = jiffies; | |
676 | ||
677 | p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad"); | |
678 | error = IS_ERR(p); | |
679 | if (error) { | |
680 | fs_err(sdp, "can't start quotad thread: %d\n", error); | |
681 | goto fail; | |
682 | } | |
683 | sdp->sd_quotad_process = p; | |
684 | ||
b3b94faa DT |
685 | return 0; |
686 | ||
b3b94faa | 687 | |
feaa7bba | 688 | fail_quotad: |
b3b94faa | 689 | kthread_stop(sdp->sd_quotad_process); |
feaa7bba | 690 | fail: |
b3b94faa | 691 | kthread_stop(sdp->sd_logd_process); |
b3b94faa DT |
692 | return error; |
693 | } | |
694 | ||
695 | /** | |
696 | * fill_super - Read in superblock | |
697 | * @sb: The VFS superblock | |
698 | * @data: Mount options | |
699 | * @silent: Don't complain if it's not a GFS2 filesystem | |
700 | * | |
701 | * Returns: errno | |
702 | */ | |
703 | ||
704 | static int fill_super(struct super_block *sb, void *data, int silent) | |
705 | { | |
706 | struct gfs2_sbd *sdp; | |
707 | struct gfs2_holder mount_gh; | |
708 | int error; | |
709 | ||
710 | sdp = init_sbd(sb); | |
711 | if (!sdp) { | |
d92a8d48 | 712 | printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n"); |
b3b94faa DT |
713 | return -ENOMEM; |
714 | } | |
715 | ||
716 | error = gfs2_mount_args(sdp, (char *)data, 0); | |
717 | if (error) { | |
d92a8d48 | 718 | printk(KERN_WARNING "GFS2: can't parse mount arguments\n"); |
b3b94faa DT |
719 | goto fail; |
720 | } | |
721 | ||
419c93e0 SW |
722 | init_vfs(sb, SDF_NOATIME); |
723 | ||
724 | /* Set up the buffer cache and fill in some fake block size values | |
725 | to allow us to read-in the on-disk superblock. */ | |
726 | sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK); | |
727 | sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; | |
728 | sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - | |
729 | GFS2_BASIC_BLOCK_SHIFT; | |
730 | sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; | |
b3b94faa DT |
731 | |
732 | error = init_names(sdp, silent); | |
733 | if (error) | |
734 | goto fail; | |
735 | ||
736 | error = gfs2_sys_fs_add(sdp); | |
737 | if (error) | |
738 | goto fail; | |
739 | ||
740 | error = gfs2_lm_mount(sdp, silent); | |
741 | if (error) | |
742 | goto fail_sys; | |
743 | ||
744 | error = init_locking(sdp, &mount_gh, DO); | |
745 | if (error) | |
746 | goto fail_lm; | |
747 | ||
748 | error = init_sb(sdp, silent, DO); | |
749 | if (error) | |
750 | goto fail_locking; | |
b3b94faa DT |
751 | |
752 | error = init_inodes(sdp, DO); | |
753 | if (error) | |
f42faf4f | 754 | goto fail_sb; |
b3b94faa DT |
755 | |
756 | error = init_per_node(sdp, DO); | |
757 | if (error) | |
758 | goto fail_inodes; | |
759 | ||
760 | error = gfs2_statfs_init(sdp); | |
761 | if (error) { | |
762 | fs_err(sdp, "can't initialize statfs subsystem: %d\n", error); | |
763 | goto fail_per_node; | |
764 | } | |
765 | ||
766 | error = init_threads(sdp, DO); | |
767 | if (error) | |
768 | goto fail_per_node; | |
769 | ||
770 | if (!(sb->s_flags & MS_RDONLY)) { | |
771 | error = gfs2_make_fs_rw(sdp); | |
772 | if (error) { | |
773 | fs_err(sdp, "can't make FS RW: %d\n", error); | |
774 | goto fail_threads; | |
775 | } | |
776 | } | |
777 | ||
778 | gfs2_glock_dq_uninit(&mount_gh); | |
779 | ||
780 | return 0; | |
781 | ||
782 | fail_threads: | |
783 | init_threads(sdp, UNDO); | |
784 | ||
785 | fail_per_node: | |
786 | init_per_node(sdp, UNDO); | |
787 | ||
788 | fail_inodes: | |
789 | init_inodes(sdp, UNDO); | |
790 | ||
b3b94faa DT |
791 | fail_sb: |
792 | init_sb(sdp, 0, UNDO); | |
793 | ||
794 | fail_locking: | |
795 | init_locking(sdp, &mount_gh, UNDO); | |
796 | ||
797 | fail_lm: | |
798 | gfs2_gl_hash_clear(sdp, WAIT); | |
799 | gfs2_lm_unmount(sdp); | |
800 | while (invalidate_inodes(sb)) | |
801 | yield(); | |
802 | ||
803 | fail_sys: | |
804 | gfs2_sys_fs_del(sdp); | |
805 | ||
806 | fail: | |
807 | vfree(sdp); | |
5c676f6d | 808 | sb->s_fs_info = NULL; |
b3b94faa DT |
809 | |
810 | return error; | |
811 | } | |
812 | ||
ccd6efd0 AM |
813 | static int gfs2_get_sb(struct file_system_type *fs_type, int flags, |
814 | const char *dev_name, void *data, struct vfsmount *mnt) | |
b3b94faa | 815 | { |
ccd6efd0 | 816 | return get_sb_bdev(fs_type, flags, dev_name, data, fill_super, mnt); |
b3b94faa DT |
817 | } |
818 | ||
419c93e0 SW |
819 | static void gfs2_kill_sb(struct super_block *sb) |
820 | { | |
821 | kill_block_super(sb); | |
822 | } | |
823 | ||
b3b94faa DT |
824 | struct file_system_type gfs2_fs_type = { |
825 | .name = "gfs2", | |
826 | .fs_flags = FS_REQUIRES_DEV, | |
827 | .get_sb = gfs2_get_sb, | |
419c93e0 SW |
828 | .kill_sb = gfs2_kill_sb, |
829 | .owner = THIS_MODULE, | |
830 | }; | |
831 | ||
832 | struct file_system_type gfs2meta_fs_type = { | |
833 | .name = "gfs2meta", | |
834 | .fs_flags = FS_REQUIRES_DEV, | |
835 | .get_sb = gfs2_get_sb, | |
836 | .kill_sb = gfs2_kill_sb, | |
b3b94faa DT |
837 | .owner = THIS_MODULE, |
838 | }; | |
839 |