]>
Commit | Line | Data |
---|---|---|
ccd979bd MF |
1 | /* -*- mode: c; c-basic-offset: 8; -*- |
2 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
3 | * | |
4 | * super.c | |
5 | * | |
6 | * load/unload driver, mount/dismount volumes | |
7 | * | |
8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public | |
12 | * License as published by the Free Software Foundation; either | |
13 | * version 2 of the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public | |
21 | * License along with this program; if not, write to the | |
22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | * Boston, MA 021110-1307, USA. | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/fs.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/highmem.h> | |
ccd979bd MF |
31 | #include <linux/init.h> |
32 | #include <linux/random.h> | |
33 | #include <linux/statfs.h> | |
34 | #include <linux/moduleparam.h> | |
35 | #include <linux/blkdev.h> | |
36 | #include <linux/socket.h> | |
37 | #include <linux/inet.h> | |
38 | #include <linux/parser.h> | |
39 | #include <linux/crc32.h> | |
40 | #include <linux/debugfs.h> | |
d550071c | 41 | #include <linux/mount.h> |
6953b4c0 | 42 | #include <linux/seq_file.h> |
19ece546 | 43 | #include <linux/quotaops.h> |
ccd979bd MF |
44 | |
45 | #define MLOG_MASK_PREFIX ML_SUPER | |
46 | #include <cluster/masklog.h> | |
47 | ||
48 | #include "ocfs2.h" | |
49 | ||
50 | /* this should be the only file to include a version 1 header */ | |
51 | #include "ocfs1_fs_compat.h" | |
52 | ||
53 | #include "alloc.h" | |
d030cc97 | 54 | #include "blockcheck.h" |
ccd979bd MF |
55 | #include "dlmglue.h" |
56 | #include "export.h" | |
57 | #include "extent_map.h" | |
58 | #include "heartbeat.h" | |
59 | #include "inode.h" | |
60 | #include "journal.h" | |
61 | #include "localalloc.h" | |
62 | #include "namei.h" | |
63 | #include "slot_map.h" | |
64 | #include "super.h" | |
65 | #include "sysfile.h" | |
66 | #include "uptodate.h" | |
67 | #include "ver.h" | |
cf1d6c76 | 68 | #include "xattr.h" |
9e33d69f | 69 | #include "quota.h" |
374a263e | 70 | #include "refcounttree.h" |
b89c5428 | 71 | #include "suballoc.h" |
ccd979bd MF |
72 | |
73 | #include "buffer_head_io.h" | |
74 | ||
e18b890b | 75 | static struct kmem_cache *ocfs2_inode_cachep = NULL; |
9e33d69f JK |
76 | struct kmem_cache *ocfs2_dquot_cachep; |
77 | struct kmem_cache *ocfs2_qf_chunk_cachep; | |
ccd979bd | 78 | |
ccd979bd MF |
79 | /* OCFS2 needs to schedule several differnt types of work which |
80 | * require cluster locking, disk I/O, recovery waits, etc. Since these | |
81 | * types of work tend to be heavy we avoid using the kernel events | |
82 | * workqueue and schedule on our own. */ | |
83 | struct workqueue_struct *ocfs2_wq = NULL; | |
84 | ||
85 | static struct dentry *ocfs2_debugfs_root = NULL; | |
86 | ||
87 | MODULE_AUTHOR("Oracle"); | |
88 | MODULE_LICENSE("GPL"); | |
89 | ||
c0123ade TY |
90 | struct mount_options |
91 | { | |
d147b3d6 | 92 | unsigned long commit_interval; |
c0123ade TY |
93 | unsigned long mount_opt; |
94 | unsigned int atime_quantum; | |
95 | signed short slot; | |
73c8a800 | 96 | int localalloc_opt; |
d02f00cc | 97 | unsigned int resv_level; |
83f92318 | 98 | int dir_resv_level; |
b61817e1 | 99 | char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; |
c0123ade TY |
100 | }; |
101 | ||
ccd979bd | 102 | static int ocfs2_parse_options(struct super_block *sb, char *options, |
c0123ade | 103 | struct mount_options *mopt, |
baf4661a | 104 | int is_remount); |
5297aad8 JK |
105 | static int ocfs2_check_set_options(struct super_block *sb, |
106 | struct mount_options *options); | |
d550071c | 107 | static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); |
ccd979bd MF |
108 | static void ocfs2_put_super(struct super_block *sb); |
109 | static int ocfs2_mount_volume(struct super_block *sb); | |
110 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data); | |
111 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); | |
112 | static int ocfs2_initialize_mem_caches(void); | |
113 | static void ocfs2_free_mem_caches(void); | |
114 | static void ocfs2_delete_osb(struct ocfs2_super *osb); | |
115 | ||
726c3342 | 116 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); |
ccd979bd MF |
117 | |
118 | static int ocfs2_sync_fs(struct super_block *sb, int wait); | |
119 | ||
120 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); | |
121 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); | |
bddb8eb3 | 122 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb); |
ccd979bd MF |
123 | static int ocfs2_check_volume(struct ocfs2_super *osb); |
124 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, | |
125 | struct buffer_head *bh, | |
73be192b JB |
126 | u32 sectsize, |
127 | struct ocfs2_blockcheck_stats *stats); | |
ccd979bd MF |
128 | static int ocfs2_initialize_super(struct super_block *sb, |
129 | struct buffer_head *bh, | |
73be192b JB |
130 | int sector_size, |
131 | struct ocfs2_blockcheck_stats *stats); | |
ccd979bd MF |
132 | static int ocfs2_get_sector(struct super_block *sb, |
133 | struct buffer_head **bh, | |
134 | int block, | |
135 | int sect_size); | |
ccd979bd MF |
136 | static struct inode *ocfs2_alloc_inode(struct super_block *sb); |
137 | static void ocfs2_destroy_inode(struct inode *inode); | |
19ece546 JK |
138 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); |
139 | static int ocfs2_enable_quotas(struct ocfs2_super *osb); | |
140 | static void ocfs2_disable_quotas(struct ocfs2_super *osb); | |
ccd979bd | 141 | |
ee9b6d61 | 142 | static const struct super_operations ocfs2_sops = { |
ccd979bd MF |
143 | .statfs = ocfs2_statfs, |
144 | .alloc_inode = ocfs2_alloc_inode, | |
145 | .destroy_inode = ocfs2_destroy_inode, | |
146 | .drop_inode = ocfs2_drop_inode, | |
066d92dc | 147 | .evict_inode = ocfs2_evict_inode, |
ccd979bd | 148 | .sync_fs = ocfs2_sync_fs, |
ccd979bd MF |
149 | .put_super = ocfs2_put_super, |
150 | .remount_fs = ocfs2_remount, | |
d550071c | 151 | .show_options = ocfs2_show_options, |
9e33d69f JK |
152 | .quota_read = ocfs2_quota_read, |
153 | .quota_write = ocfs2_quota_write, | |
ccd979bd MF |
154 | }; |
155 | ||
156 | enum { | |
157 | Opt_barrier, | |
158 | Opt_err_panic, | |
159 | Opt_err_ro, | |
160 | Opt_intr, | |
161 | Opt_nointr, | |
162 | Opt_hb_none, | |
163 | Opt_hb_local, | |
2c442719 | 164 | Opt_hb_global, |
ccd979bd MF |
165 | Opt_data_ordered, |
166 | Opt_data_writeback, | |
7f1a37e3 | 167 | Opt_atime_quantum, |
baf4661a | 168 | Opt_slot, |
d147b3d6 | 169 | Opt_commit, |
2fbe8d1e | 170 | Opt_localalloc, |
53fc622b | 171 | Opt_localflocks, |
b61817e1 | 172 | Opt_stack, |
cf1d6c76 TY |
173 | Opt_user_xattr, |
174 | Opt_nouser_xattr, | |
12462f1d | 175 | Opt_inode64, |
a68979b8 TY |
176 | Opt_acl, |
177 | Opt_noacl, | |
19ece546 JK |
178 | Opt_usrquota, |
179 | Opt_grpquota, | |
7bdb0d18 TY |
180 | Opt_coherency_buffered, |
181 | Opt_coherency_full, | |
d02f00cc | 182 | Opt_resv_level, |
83f92318 | 183 | Opt_dir_resv_level, |
ccd979bd MF |
184 | Opt_err, |
185 | }; | |
186 | ||
a447c093 | 187 | static const match_table_t tokens = { |
ccd979bd MF |
188 | {Opt_barrier, "barrier=%u"}, |
189 | {Opt_err_panic, "errors=panic"}, | |
190 | {Opt_err_ro, "errors=remount-ro"}, | |
191 | {Opt_intr, "intr"}, | |
192 | {Opt_nointr, "nointr"}, | |
193 | {Opt_hb_none, OCFS2_HB_NONE}, | |
194 | {Opt_hb_local, OCFS2_HB_LOCAL}, | |
2c442719 | 195 | {Opt_hb_global, OCFS2_HB_GLOBAL}, |
ccd979bd MF |
196 | {Opt_data_ordered, "data=ordered"}, |
197 | {Opt_data_writeback, "data=writeback"}, | |
7f1a37e3 | 198 | {Opt_atime_quantum, "atime_quantum=%u"}, |
baf4661a | 199 | {Opt_slot, "preferred_slot=%u"}, |
d147b3d6 | 200 | {Opt_commit, "commit=%u"}, |
2fbe8d1e | 201 | {Opt_localalloc, "localalloc=%d"}, |
53fc622b | 202 | {Opt_localflocks, "localflocks"}, |
b61817e1 | 203 | {Opt_stack, "cluster_stack=%s"}, |
cf1d6c76 TY |
204 | {Opt_user_xattr, "user_xattr"}, |
205 | {Opt_nouser_xattr, "nouser_xattr"}, | |
12462f1d | 206 | {Opt_inode64, "inode64"}, |
a68979b8 TY |
207 | {Opt_acl, "acl"}, |
208 | {Opt_noacl, "noacl"}, | |
19ece546 JK |
209 | {Opt_usrquota, "usrquota"}, |
210 | {Opt_grpquota, "grpquota"}, | |
7bdb0d18 TY |
211 | {Opt_coherency_buffered, "coherency=buffered"}, |
212 | {Opt_coherency_full, "coherency=full"}, | |
d02f00cc | 213 | {Opt_resv_level, "resv_level=%u"}, |
83f92318 | 214 | {Opt_dir_resv_level, "dir_resv_level=%u"}, |
ccd979bd MF |
215 | {Opt_err, NULL} |
216 | }; | |
217 | ||
50397507 SM |
218 | #ifdef CONFIG_DEBUG_FS |
219 | static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) | |
220 | { | |
50397507 SM |
221 | struct ocfs2_cluster_connection *cconn = osb->cconn; |
222 | struct ocfs2_recovery_map *rm = osb->recovery_map; | |
df152c24 SM |
223 | struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; |
224 | int i, out = 0; | |
50397507 SM |
225 | |
226 | out += snprintf(buf + out, len - out, | |
227 | "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", | |
228 | "Device", osb->dev_str, osb->uuid_str, | |
229 | osb->fs_generation, osb->vol_label); | |
230 | ||
231 | out += snprintf(buf + out, len - out, | |
232 | "%10s => State: %d Flags: 0x%lX\n", "Volume", | |
233 | atomic_read(&osb->vol_state), osb->osb_flags); | |
234 | ||
235 | out += snprintf(buf + out, len - out, | |
236 | "%10s => Block: %lu Cluster: %d\n", "Sizes", | |
237 | osb->sb->s_blocksize, osb->s_clustersize); | |
238 | ||
239 | out += snprintf(buf + out, len - out, | |
240 | "%10s => Compat: 0x%X Incompat: 0x%X " | |
241 | "ROcompat: 0x%X\n", | |
242 | "Features", osb->s_feature_compat, | |
243 | osb->s_feature_incompat, osb->s_feature_ro_compat); | |
244 | ||
245 | out += snprintf(buf + out, len - out, | |
246 | "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", | |
247 | osb->s_mount_opt, osb->s_atime_quantum); | |
248 | ||
c3d38840 SM |
249 | if (cconn) { |
250 | out += snprintf(buf + out, len - out, | |
251 | "%10s => Stack: %s Name: %*s " | |
252 | "Version: %d.%d\n", "Cluster", | |
253 | (*osb->osb_cluster_stack == '\0' ? | |
254 | "o2cb" : osb->osb_cluster_stack), | |
255 | cconn->cc_namelen, cconn->cc_name, | |
256 | cconn->cc_version.pv_major, | |
257 | cconn->cc_version.pv_minor); | |
258 | } | |
50397507 SM |
259 | |
260 | spin_lock(&osb->dc_task_lock); | |
261 | out += snprintf(buf + out, len - out, | |
262 | "%10s => Pid: %d Count: %lu WakeSeq: %lu " | |
263 | "WorkSeq: %lu\n", "DownCnvt", | |
c3d38840 SM |
264 | (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), |
265 | osb->blocked_lock_count, osb->dc_wake_sequence, | |
266 | osb->dc_work_sequence); | |
50397507 SM |
267 | spin_unlock(&osb->dc_task_lock); |
268 | ||
269 | spin_lock(&osb->osb_lock); | |
270 | out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", | |
271 | "Recovery", | |
272 | (osb->recovery_thread_task ? | |
273 | task_pid_nr(osb->recovery_thread_task) : -1)); | |
274 | if (rm->rm_used == 0) | |
275 | out += snprintf(buf + out, len - out, " None\n"); | |
276 | else { | |
277 | for (i = 0; i < rm->rm_used; i++) | |
278 | out += snprintf(buf + out, len - out, " %d", | |
279 | rm->rm_entries[i]); | |
280 | out += snprintf(buf + out, len - out, "\n"); | |
281 | } | |
282 | spin_unlock(&osb->osb_lock); | |
283 | ||
284 | out += snprintf(buf + out, len - out, | |
285 | "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", | |
c3d38840 SM |
286 | (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), |
287 | osb->osb_commit_interval, | |
50397507 SM |
288 | atomic_read(&osb->needs_checkpoint)); |
289 | ||
290 | out += snprintf(buf + out, len - out, | |
c3d38840 | 291 | "%10s => State: %d TxnId: %lu NumTxns: %d\n", |
50397507 | 292 | "Journal", osb->journal->j_state, |
c3d38840 SM |
293 | osb->journal->j_trans_id, |
294 | atomic_read(&osb->journal->j_num_trans)); | |
50397507 SM |
295 | |
296 | out += snprintf(buf + out, len - out, | |
297 | "%10s => GlobalAllocs: %d LocalAllocs: %d " | |
298 | "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", | |
299 | "Stats", | |
300 | atomic_read(&osb->alloc_stats.bitmap_data), | |
301 | atomic_read(&osb->alloc_stats.local_data), | |
302 | atomic_read(&osb->alloc_stats.bg_allocs), | |
303 | atomic_read(&osb->alloc_stats.moves), | |
304 | atomic_read(&osb->alloc_stats.bg_extends)); | |
305 | ||
306 | out += snprintf(buf + out, len - out, | |
307 | "%10s => State: %u Descriptor: %llu Size: %u bits " | |
308 | "Default: %u bits\n", | |
309 | "LocalAlloc", osb->local_alloc_state, | |
310 | (unsigned long long)osb->la_last_gd, | |
311 | osb->local_alloc_bits, osb->local_alloc_default_bits); | |
312 | ||
313 | spin_lock(&osb->osb_lock); | |
314 | out += snprintf(buf + out, len - out, | |
b89c5428 TY |
315 | "%10s => InodeSlot: %d StolenInodes: %d, " |
316 | "MetaSlot: %d StolenMeta: %d\n", "Steal", | |
50397507 | 317 | osb->s_inode_steal_slot, |
b89c5428 TY |
318 | atomic_read(&osb->s_num_inodes_stolen), |
319 | osb->s_meta_steal_slot, | |
320 | atomic_read(&osb->s_num_meta_stolen)); | |
50397507 SM |
321 | spin_unlock(&osb->osb_lock); |
322 | ||
df152c24 SM |
323 | out += snprintf(buf + out, len - out, "OrphanScan => "); |
324 | out += snprintf(buf + out, len - out, "Local: %u Global: %u ", | |
325 | os->os_count, os->os_seqno); | |
326 | out += snprintf(buf + out, len - out, " Last Scan: "); | |
327 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) | |
328 | out += snprintf(buf + out, len - out, "Disabled\n"); | |
329 | else | |
330 | out += snprintf(buf + out, len - out, "%lu seconds ago\n", | |
331 | (get_seconds() - os->os_scantime.tv_sec)); | |
332 | ||
50397507 SM |
333 | out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", |
334 | "Slots", "Num", "RecoGen"); | |
50397507 SM |
335 | for (i = 0; i < osb->max_slots; ++i) { |
336 | out += snprintf(buf + out, len - out, | |
337 | "%10s %c %3d %10d\n", | |
338 | " ", | |
339 | (i == osb->slot_num ? '*' : ' '), | |
340 | i, osb->slot_recovery_generations[i]); | |
341 | } | |
342 | ||
343 | return out; | |
344 | } | |
345 | ||
346 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) | |
347 | { | |
348 | struct ocfs2_super *osb = inode->i_private; | |
349 | char *buf = NULL; | |
350 | ||
351 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
352 | if (!buf) | |
353 | goto bail; | |
354 | ||
355 | i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); | |
356 | ||
357 | file->private_data = buf; | |
358 | ||
359 | return 0; | |
360 | bail: | |
361 | return -ENOMEM; | |
362 | } | |
363 | ||
364 | static int ocfs2_debug_release(struct inode *inode, struct file *file) | |
365 | { | |
366 | kfree(file->private_data); | |
367 | return 0; | |
368 | } | |
369 | ||
370 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, | |
371 | size_t nbytes, loff_t *ppos) | |
372 | { | |
373 | return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, | |
374 | i_size_read(file->f_mapping->host)); | |
375 | } | |
376 | #else | |
377 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) | |
378 | { | |
379 | return 0; | |
380 | } | |
381 | static int ocfs2_debug_release(struct inode *inode, struct file *file) | |
382 | { | |
383 | return 0; | |
384 | } | |
385 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, | |
386 | size_t nbytes, loff_t *ppos) | |
387 | { | |
388 | return 0; | |
389 | } | |
390 | #endif /* CONFIG_DEBUG_FS */ | |
391 | ||
828c0950 | 392 | static const struct file_operations ocfs2_osb_debug_fops = { |
50397507 SM |
393 | .open = ocfs2_osb_debug_open, |
394 | .release = ocfs2_debug_release, | |
395 | .read = ocfs2_debug_read, | |
396 | .llseek = generic_file_llseek, | |
397 | }; | |
398 | ||
ccd979bd MF |
399 | static int ocfs2_sync_fs(struct super_block *sb, int wait) |
400 | { | |
bddb8eb3 | 401 | int status; |
ccd979bd MF |
402 | tid_t target; |
403 | struct ocfs2_super *osb = OCFS2_SB(sb); | |
404 | ||
ccd979bd MF |
405 | if (ocfs2_is_hard_readonly(osb)) |
406 | return -EROFS; | |
407 | ||
408 | if (wait) { | |
409 | status = ocfs2_flush_truncate_log(osb); | |
410 | if (status < 0) | |
411 | mlog_errno(status); | |
412 | } else { | |
413 | ocfs2_schedule_truncate_log_flush(osb, 0); | |
414 | } | |
415 | ||
2b4e30fb JB |
416 | if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, |
417 | &target)) { | |
ccd979bd | 418 | if (wait) |
2b4e30fb JB |
419 | jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, |
420 | target); | |
ccd979bd MF |
421 | } |
422 | return 0; | |
423 | } | |
424 | ||
1a224ad1 JK |
425 | static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) |
426 | { | |
427 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) | |
428 | && (ino == USER_QUOTA_SYSTEM_INODE | |
429 | || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) | |
430 | return 0; | |
431 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) | |
432 | && (ino == GROUP_QUOTA_SYSTEM_INODE | |
433 | || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) | |
434 | return 0; | |
435 | return 1; | |
436 | } | |
437 | ||
ccd979bd MF |
438 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) |
439 | { | |
440 | struct inode *new = NULL; | |
441 | int status = 0; | |
442 | int i; | |
443 | ||
444 | mlog_entry_void(); | |
445 | ||
5fa0613e | 446 | new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); |
ccd979bd MF |
447 | if (IS_ERR(new)) { |
448 | status = PTR_ERR(new); | |
449 | mlog_errno(status); | |
450 | goto bail; | |
451 | } | |
452 | osb->root_inode = new; | |
453 | ||
5fa0613e | 454 | new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); |
ccd979bd MF |
455 | if (IS_ERR(new)) { |
456 | status = PTR_ERR(new); | |
457 | mlog_errno(status); | |
458 | goto bail; | |
459 | } | |
460 | osb->sys_root_inode = new; | |
461 | ||
462 | for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; | |
463 | i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { | |
1a224ad1 JK |
464 | if (!ocfs2_need_system_inode(osb, i)) |
465 | continue; | |
ccd979bd MF |
466 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
467 | if (!new) { | |
468 | ocfs2_release_system_inodes(osb); | |
469 | status = -EINVAL; | |
470 | mlog_errno(status); | |
471 | /* FIXME: Should ERROR_RO_FS */ | |
472 | mlog(ML_ERROR, "Unable to load system inode %d, " | |
473 | "possibly corrupt fs?", i); | |
474 | goto bail; | |
475 | } | |
476 | // the array now has one ref, so drop this one | |
477 | iput(new); | |
478 | } | |
479 | ||
480 | bail: | |
481 | mlog_exit(status); | |
482 | return status; | |
483 | } | |
484 | ||
485 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) | |
486 | { | |
487 | struct inode *new = NULL; | |
488 | int status = 0; | |
489 | int i; | |
490 | ||
491 | mlog_entry_void(); | |
492 | ||
493 | for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; | |
494 | i < NUM_SYSTEM_INODES; | |
495 | i++) { | |
1a224ad1 JK |
496 | if (!ocfs2_need_system_inode(osb, i)) |
497 | continue; | |
ccd979bd MF |
498 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
499 | if (!new) { | |
500 | ocfs2_release_system_inodes(osb); | |
501 | status = -EINVAL; | |
502 | mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", | |
503 | status, i, osb->slot_num); | |
504 | goto bail; | |
505 | } | |
506 | /* the array now has one ref, so drop this one */ | |
507 | iput(new); | |
508 | } | |
509 | ||
510 | bail: | |
511 | mlog_exit(status); | |
512 | return status; | |
513 | } | |
514 | ||
bddb8eb3 | 515 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb) |
ccd979bd | 516 | { |
bddb8eb3 | 517 | int i; |
ccd979bd MF |
518 | struct inode *inode; |
519 | ||
520 | mlog_entry_void(); | |
521 | ||
b4d693fc TM |
522 | for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { |
523 | inode = osb->global_system_inodes[i]; | |
ccd979bd MF |
524 | if (inode) { |
525 | iput(inode); | |
b4d693fc | 526 | osb->global_system_inodes[i] = NULL; |
ccd979bd MF |
527 | } |
528 | } | |
529 | ||
530 | inode = osb->sys_root_inode; | |
531 | if (inode) { | |
532 | iput(inode); | |
533 | osb->sys_root_inode = NULL; | |
534 | } | |
535 | ||
536 | inode = osb->root_inode; | |
537 | if (inode) { | |
538 | iput(inode); | |
539 | osb->root_inode = NULL; | |
540 | } | |
541 | ||
b4d693fc TM |
542 | if (!osb->local_system_inodes) |
543 | goto out; | |
544 | ||
545 | for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { | |
546 | if (osb->local_system_inodes[i]) { | |
547 | iput(osb->local_system_inodes[i]); | |
548 | osb->local_system_inodes[i] = NULL; | |
549 | } | |
550 | } | |
551 | ||
552 | kfree(osb->local_system_inodes); | |
553 | osb->local_system_inodes = NULL; | |
554 | ||
555 | out: | |
bddb8eb3 | 556 | mlog_exit(0); |
ccd979bd MF |
557 | } |
558 | ||
559 | /* We're allocating fs objects, use GFP_NOFS */ | |
560 | static struct inode *ocfs2_alloc_inode(struct super_block *sb) | |
561 | { | |
562 | struct ocfs2_inode_info *oi; | |
563 | ||
e6b4f8da | 564 | oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); |
ccd979bd MF |
565 | if (!oi) |
566 | return NULL; | |
567 | ||
2b4e30fb | 568 | jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); |
ccd979bd MF |
569 | return &oi->vfs_inode; |
570 | } | |
571 | ||
fa0d7e3d | 572 | static void ocfs2_i_callback(struct rcu_head *head) |
ccd979bd | 573 | { |
fa0d7e3d NP |
574 | struct inode *inode = container_of(head, struct inode, i_rcu); |
575 | INIT_LIST_HEAD(&inode->i_dentry); | |
ccd979bd MF |
576 | kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); |
577 | } | |
578 | ||
fa0d7e3d NP |
579 | static void ocfs2_destroy_inode(struct inode *inode) |
580 | { | |
581 | call_rcu(&inode->i_rcu, ocfs2_i_callback); | |
582 | } | |
583 | ||
5a254031 MF |
584 | static unsigned long long ocfs2_max_file_offset(unsigned int bbits, |
585 | unsigned int cbits) | |
ccd979bd | 586 | { |
5a254031 MF |
587 | unsigned int bytes = 1 << cbits; |
588 | unsigned int trim = bytes; | |
589 | unsigned int bitshift = 32; | |
590 | ||
591 | /* | |
592 | * i_size and all block offsets in ocfs2 are always 64 bits | |
593 | * wide. i_clusters is 32 bits, in cluster-sized units. So on | |
594 | * 64 bit platforms, cluster size will be the limiting factor. | |
ccd979bd MF |
595 | */ |
596 | ||
597 | #if BITS_PER_LONG == 32 | |
90c699a9 | 598 | # if defined(CONFIG_LBDAF) |
2ecd05ae | 599 | BUILD_BUG_ON(sizeof(sector_t) != 8); |
5a254031 MF |
600 | /* |
601 | * We might be limited by page cache size. | |
602 | */ | |
603 | if (bytes > PAGE_CACHE_SIZE) { | |
604 | bytes = PAGE_CACHE_SIZE; | |
605 | trim = 1; | |
606 | /* | |
607 | * Shift by 31 here so that we don't get larger than | |
608 | * MAX_LFS_FILESIZE | |
609 | */ | |
610 | bitshift = 31; | |
611 | } | |
ccd979bd | 612 | # else |
5a254031 MF |
613 | /* |
614 | * We are limited by the size of sector_t. Use block size, as | |
615 | * that's what we expose to the VFS. | |
616 | */ | |
617 | bytes = 1 << bbits; | |
618 | trim = 1; | |
619 | bitshift = 31; | |
ccd979bd MF |
620 | # endif |
621 | #endif | |
622 | ||
5a254031 MF |
623 | /* |
624 | * Trim by a whole cluster when we can actually approach the | |
625 | * on-disk limits. Otherwise we can overflow i_clusters when | |
626 | * an extent start is at the max offset. | |
627 | */ | |
628 | return (((unsigned long long)bytes) << bitshift) - trim; | |
ccd979bd MF |
629 | } |
630 | ||
631 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data) | |
632 | { | |
633 | int incompat_features; | |
634 | int ret = 0; | |
c0123ade | 635 | struct mount_options parsed_options; |
ccd979bd | 636 | struct ocfs2_super *osb = OCFS2_SB(sb); |
2c442719 | 637 | u32 tmp; |
ccd979bd | 638 | |
5297aad8 JK |
639 | if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || |
640 | !ocfs2_check_set_options(sb, &parsed_options)) { | |
ccd979bd MF |
641 | ret = -EINVAL; |
642 | goto out; | |
643 | } | |
644 | ||
2c442719 SM |
645 | tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | |
646 | OCFS2_MOUNT_HB_NONE; | |
647 | if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { | |
ccd979bd MF |
648 | ret = -EINVAL; |
649 | mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); | |
650 | goto out; | |
651 | } | |
652 | ||
653 | if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != | |
c0123ade | 654 | (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { |
ccd979bd MF |
655 | ret = -EINVAL; |
656 | mlog(ML_ERROR, "Cannot change data mode on remount\n"); | |
657 | goto out; | |
658 | } | |
659 | ||
12462f1d JB |
660 | /* Probably don't want this on remount; it might |
661 | * mess with other nodes */ | |
662 | if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && | |
663 | (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { | |
664 | ret = -EINVAL; | |
665 | mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); | |
666 | goto out; | |
667 | } | |
668 | ||
ccd979bd MF |
669 | /* We're going to/from readonly mode. */ |
670 | if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { | |
19ece546 JK |
671 | /* Disable quota accounting before remounting RO */ |
672 | if (*flags & MS_RDONLY) { | |
673 | ret = ocfs2_susp_quotas(osb, 0); | |
674 | if (ret < 0) | |
675 | goto out; | |
676 | } | |
ccd979bd MF |
677 | /* Lock here so the check of HARD_RO and the potential |
678 | * setting of SOFT_RO is atomic. */ | |
679 | spin_lock(&osb->osb_lock); | |
680 | if (osb->osb_flags & OCFS2_OSB_HARD_RO) { | |
681 | mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); | |
682 | ret = -EROFS; | |
683 | goto unlock_osb; | |
684 | } | |
685 | ||
686 | if (*flags & MS_RDONLY) { | |
687 | mlog(0, "Going to ro mode.\n"); | |
688 | sb->s_flags |= MS_RDONLY; | |
689 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; | |
690 | } else { | |
691 | mlog(0, "Making ro filesystem writeable.\n"); | |
692 | ||
693 | if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { | |
694 | mlog(ML_ERROR, "Cannot remount RDWR " | |
695 | "filesystem due to previous errors.\n"); | |
696 | ret = -EROFS; | |
697 | goto unlock_osb; | |
698 | } | |
699 | incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); | |
700 | if (incompat_features) { | |
701 | mlog(ML_ERROR, "Cannot remount RDWR because " | |
702 | "of unsupported optional features " | |
703 | "(%x).\n", incompat_features); | |
704 | ret = -EINVAL; | |
705 | goto unlock_osb; | |
706 | } | |
707 | sb->s_flags &= ~MS_RDONLY; | |
708 | osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; | |
709 | } | |
710 | unlock_osb: | |
711 | spin_unlock(&osb->osb_lock); | |
19ece546 JK |
712 | /* Enable quota accounting after remounting RW */ |
713 | if (!ret && !(*flags & MS_RDONLY)) { | |
714 | if (sb_any_quota_suspended(sb)) | |
715 | ret = ocfs2_susp_quotas(osb, 1); | |
716 | else | |
717 | ret = ocfs2_enable_quotas(osb); | |
718 | if (ret < 0) { | |
719 | /* Return back changes... */ | |
720 | spin_lock(&osb->osb_lock); | |
721 | sb->s_flags |= MS_RDONLY; | |
722 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; | |
723 | spin_unlock(&osb->osb_lock); | |
724 | goto out; | |
725 | } | |
726 | } | |
ccd979bd MF |
727 | } |
728 | ||
729 | if (!ret) { | |
ccd979bd MF |
730 | /* Only save off the new mount options in case of a successful |
731 | * remount. */ | |
c0123ade TY |
732 | osb->s_mount_opt = parsed_options.mount_opt; |
733 | osb->s_atime_quantum = parsed_options.atime_quantum; | |
734 | osb->preferred_slot = parsed_options.slot; | |
d147b3d6 MF |
735 | if (parsed_options.commit_interval) |
736 | osb->osb_commit_interval = parsed_options.commit_interval; | |
e001e796 MF |
737 | |
738 | if (!ocfs2_is_hard_readonly(osb)) | |
739 | ocfs2_set_journal_params(osb); | |
57b09bb5 JK |
740 | |
741 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | | |
742 | ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? | |
743 | MS_POSIXACL : 0); | |
ccd979bd MF |
744 | } |
745 | out: | |
746 | return ret; | |
747 | } | |
748 | ||
749 | static int ocfs2_sb_probe(struct super_block *sb, | |
750 | struct buffer_head **bh, | |
73be192b JB |
751 | int *sector_size, |
752 | struct ocfs2_blockcheck_stats *stats) | |
ccd979bd | 753 | { |
bddb8eb3 | 754 | int status, tmpstat; |
ccd979bd MF |
755 | struct ocfs1_vol_disk_hdr *hdr; |
756 | struct ocfs2_dinode *di; | |
757 | int blksize; | |
758 | ||
759 | *bh = NULL; | |
760 | ||
761 | /* may be > 512 */ | |
e1defc4f | 762 | *sector_size = bdev_logical_block_size(sb->s_bdev); |
ccd979bd MF |
763 | if (*sector_size > OCFS2_MAX_BLOCKSIZE) { |
764 | mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", | |
765 | *sector_size, OCFS2_MAX_BLOCKSIZE); | |
766 | status = -EINVAL; | |
767 | goto bail; | |
768 | } | |
769 | ||
770 | /* Can this really happen? */ | |
771 | if (*sector_size < OCFS2_MIN_BLOCKSIZE) | |
772 | *sector_size = OCFS2_MIN_BLOCKSIZE; | |
773 | ||
774 | /* check block zero for old format */ | |
775 | status = ocfs2_get_sector(sb, bh, 0, *sector_size); | |
776 | if (status < 0) { | |
777 | mlog_errno(status); | |
778 | goto bail; | |
779 | } | |
780 | hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; | |
781 | if (hdr->major_version == OCFS1_MAJOR_VERSION) { | |
782 | mlog(ML_ERROR, "incompatible version: %u.%u\n", | |
783 | hdr->major_version, hdr->minor_version); | |
784 | status = -EINVAL; | |
785 | } | |
786 | if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, | |
787 | strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { | |
788 | mlog(ML_ERROR, "incompatible volume signature: %8s\n", | |
789 | hdr->signature); | |
790 | status = -EINVAL; | |
791 | } | |
792 | brelse(*bh); | |
793 | *bh = NULL; | |
794 | if (status < 0) { | |
795 | mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " | |
796 | "upgraded before mounting with ocfs v2\n"); | |
797 | goto bail; | |
798 | } | |
799 | ||
800 | /* | |
801 | * Now check at magic offset for 512, 1024, 2048, 4096 | |
802 | * blocksizes. 4096 is the maximum blocksize because it is | |
803 | * the minimum clustersize. | |
804 | */ | |
805 | status = -EINVAL; | |
806 | for (blksize = *sector_size; | |
807 | blksize <= OCFS2_MAX_BLOCKSIZE; | |
808 | blksize <<= 1) { | |
809 | tmpstat = ocfs2_get_sector(sb, bh, | |
810 | OCFS2_SUPER_BLOCK_BLKNO, | |
811 | blksize); | |
812 | if (tmpstat < 0) { | |
813 | status = tmpstat; | |
814 | mlog_errno(status); | |
fb5cbe9e | 815 | break; |
ccd979bd MF |
816 | } |
817 | di = (struct ocfs2_dinode *) (*bh)->b_data; | |
73be192b | 818 | memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); |
1c1d9793 | 819 | spin_lock_init(&stats->b_lock); |
fb5cbe9e JB |
820 | tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); |
821 | if (tmpstat < 0) { | |
822 | brelse(*bh); | |
823 | *bh = NULL; | |
824 | } | |
825 | if (tmpstat != -EAGAIN) { | |
826 | status = tmpstat; | |
ccd979bd | 827 | break; |
fb5cbe9e | 828 | } |
ccd979bd MF |
829 | } |
830 | ||
831 | bail: | |
832 | return status; | |
833 | } | |
834 | ||
c271c5c2 SM |
835 | static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) |
836 | { | |
2c442719 SM |
837 | u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; |
838 | ||
839 | if (osb->s_mount_opt & hb_enabled) { | |
840 | if (ocfs2_mount_local(osb)) { | |
c271c5c2 SM |
841 | mlog(ML_ERROR, "Cannot heartbeat on a locally " |
842 | "mounted device.\n"); | |
843 | return -EINVAL; | |
844 | } | |
2c442719 | 845 | if (ocfs2_userspace_stack(osb)) { |
b61817e1 JB |
846 | mlog(ML_ERROR, "Userspace stack expected, but " |
847 | "o2cb heartbeat arguments passed to mount\n"); | |
848 | return -EINVAL; | |
849 | } | |
2c442719 SM |
850 | if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && |
851 | !ocfs2_cluster_o2cb_global_heartbeat(osb)) || | |
852 | ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && | |
853 | ocfs2_cluster_o2cb_global_heartbeat(osb))) { | |
854 | mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); | |
855 | return -EINVAL; | |
856 | } | |
b61817e1 JB |
857 | } |
858 | ||
2c442719 | 859 | if (!(osb->s_mount_opt & hb_enabled)) { |
b61817e1 JB |
860 | if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && |
861 | !ocfs2_userspace_stack(osb)) { | |
c271c5c2 SM |
862 | mlog(ML_ERROR, "Heartbeat has to be started to mount " |
863 | "a read-write clustered device.\n"); | |
864 | return -EINVAL; | |
865 | } | |
866 | } | |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
b61817e1 JB |
871 | /* |
872 | * If we're using a userspace stack, mount should have passed | |
873 | * a name that matches the disk. If not, mount should not | |
874 | * have passed a stack. | |
875 | */ | |
876 | static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, | |
877 | struct mount_options *mopt) | |
878 | { | |
879 | if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { | |
880 | mlog(ML_ERROR, | |
881 | "cluster stack passed to mount, but this filesystem " | |
882 | "does not support it\n"); | |
883 | return -EINVAL; | |
884 | } | |
885 | ||
886 | if (ocfs2_userspace_stack(osb) && | |
887 | strncmp(osb->osb_cluster_stack, mopt->cluster_stack, | |
888 | OCFS2_STACK_LABEL_LEN)) { | |
889 | mlog(ML_ERROR, | |
890 | "cluster stack passed to mount (\"%s\") does not " | |
891 | "match the filesystem (\"%s\")\n", | |
892 | mopt->cluster_stack, | |
893 | osb->osb_cluster_stack); | |
894 | return -EINVAL; | |
895 | } | |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
19ece546 JK |
900 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) |
901 | { | |
902 | int type; | |
903 | struct super_block *sb = osb->sb; | |
904 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, | |
905 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; | |
906 | int status = 0; | |
907 | ||
908 | for (type = 0; type < MAXQUOTAS; type++) { | |
909 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) | |
910 | continue; | |
911 | if (unsuspend) | |
0f0dd62f | 912 | status = dquot_resume(sb, type); |
eea7feb0 JK |
913 | else { |
914 | struct ocfs2_mem_dqinfo *oinfo; | |
915 | ||
916 | /* Cancel periodic syncing before suspending */ | |
917 | oinfo = sb_dqinfo(sb, type)->dqi_priv; | |
918 | cancel_delayed_work_sync(&oinfo->dqi_sync_work); | |
0f0dd62f | 919 | status = dquot_suspend(sb, type); |
eea7feb0 | 920 | } |
19ece546 JK |
921 | if (status < 0) |
922 | break; | |
923 | } | |
924 | if (status < 0) | |
925 | mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " | |
926 | "remount (error = %d).\n", status); | |
927 | return status; | |
928 | } | |
929 | ||
930 | static int ocfs2_enable_quotas(struct ocfs2_super *osb) | |
931 | { | |
932 | struct inode *inode[MAXQUOTAS] = { NULL, NULL }; | |
933 | struct super_block *sb = osb->sb; | |
934 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, | |
935 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; | |
936 | unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, | |
937 | LOCAL_GROUP_QUOTA_SYSTEM_INODE }; | |
938 | int status; | |
939 | int type; | |
940 | ||
941 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; | |
942 | for (type = 0; type < MAXQUOTAS; type++) { | |
943 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) | |
944 | continue; | |
945 | inode[type] = ocfs2_get_system_file_inode(osb, ino[type], | |
946 | osb->slot_num); | |
947 | if (!inode[type]) { | |
948 | status = -ENOENT; | |
949 | goto out_quota_off; | |
950 | } | |
287a8095 CH |
951 | status = dquot_enable(inode[type], type, QFMT_OCFS2, |
952 | DQUOT_USAGE_ENABLED); | |
19ece546 JK |
953 | if (status < 0) |
954 | goto out_quota_off; | |
955 | } | |
956 | ||
957 | for (type = 0; type < MAXQUOTAS; type++) | |
958 | iput(inode[type]); | |
959 | return 0; | |
960 | out_quota_off: | |
961 | ocfs2_disable_quotas(osb); | |
962 | for (type = 0; type < MAXQUOTAS; type++) | |
963 | iput(inode[type]); | |
964 | mlog_errno(status); | |
965 | return status; | |
966 | } | |
967 | ||
968 | static void ocfs2_disable_quotas(struct ocfs2_super *osb) | |
969 | { | |
970 | int type; | |
971 | struct inode *inode; | |
972 | struct super_block *sb = osb->sb; | |
c06bcbfa | 973 | struct ocfs2_mem_dqinfo *oinfo; |
19ece546 JK |
974 | |
975 | /* We mostly ignore errors in this function because there's not much | |
976 | * we can do when we see them */ | |
977 | for (type = 0; type < MAXQUOTAS; type++) { | |
978 | if (!sb_has_quota_loaded(sb, type)) | |
979 | continue; | |
c06bcbfa JK |
980 | /* Cancel periodic syncing before we grab dqonoff_mutex */ |
981 | oinfo = sb_dqinfo(sb, type)->dqi_priv; | |
982 | cancel_delayed_work_sync(&oinfo->dqi_sync_work); | |
19ece546 JK |
983 | inode = igrab(sb->s_dquot.files[type]); |
984 | /* Turn off quotas. This will remove all dquot structures from | |
985 | * memory and so they will be automatically synced to global | |
986 | * quota files */ | |
0f0dd62f CH |
987 | dquot_disable(sb, type, DQUOT_USAGE_ENABLED | |
988 | DQUOT_LIMITS_ENABLED); | |
19ece546 JK |
989 | if (!inode) |
990 | continue; | |
991 | iput(inode); | |
992 | } | |
993 | } | |
994 | ||
995 | /* Handle quota on quotactl */ | |
f00c9e44 | 996 | static int ocfs2_quota_on(struct super_block *sb, int type, int format_id) |
19ece546 JK |
997 | { |
998 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, | |
999 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; | |
1000 | ||
1001 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) | |
1002 | return -EINVAL; | |
1003 | ||
287a8095 CH |
1004 | return dquot_enable(sb_dqopt(sb)->files[type], type, |
1005 | format_id, DQUOT_LIMITS_ENABLED); | |
19ece546 JK |
1006 | } |
1007 | ||
1008 | /* Handle quota off quotactl */ | |
307ae18a | 1009 | static int ocfs2_quota_off(struct super_block *sb, int type) |
19ece546 | 1010 | { |
0f0dd62f | 1011 | return dquot_disable(sb, type, DQUOT_LIMITS_ENABLED); |
19ece546 JK |
1012 | } |
1013 | ||
0d54b217 | 1014 | static const struct quotactl_ops ocfs2_quotactl_ops = { |
f00c9e44 | 1015 | .quota_on_meta = ocfs2_quota_on, |
19ece546 | 1016 | .quota_off = ocfs2_quota_off, |
287a8095 CH |
1017 | .quota_sync = dquot_quota_sync, |
1018 | .get_info = dquot_get_dqinfo, | |
1019 | .set_info = dquot_set_dqinfo, | |
1020 | .get_dqblk = dquot_get_dqblk, | |
1021 | .set_dqblk = dquot_set_dqblk, | |
19ece546 JK |
1022 | }; |
1023 | ||
ccd979bd MF |
1024 | static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) |
1025 | { | |
1026 | struct dentry *root; | |
1027 | int status, sector_size; | |
c0123ade | 1028 | struct mount_options parsed_options; |
ccd979bd MF |
1029 | struct inode *inode = NULL; |
1030 | struct ocfs2_super *osb = NULL; | |
1031 | struct buffer_head *bh = NULL; | |
c271c5c2 | 1032 | char nodestr[8]; |
73be192b | 1033 | struct ocfs2_blockcheck_stats stats; |
ccd979bd MF |
1034 | |
1035 | mlog_entry("%p, %p, %i", sb, data, silent); | |
1036 | ||
c0123ade | 1037 | if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { |
ccd979bd MF |
1038 | status = -EINVAL; |
1039 | goto read_super_error; | |
1040 | } | |
1041 | ||
1042 | /* probe for superblock */ | |
73be192b | 1043 | status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); |
ccd979bd MF |
1044 | if (status < 0) { |
1045 | mlog(ML_ERROR, "superblock probe failed!\n"); | |
1046 | goto read_super_error; | |
1047 | } | |
1048 | ||
73be192b | 1049 | status = ocfs2_initialize_super(sb, bh, sector_size, &stats); |
ccd979bd MF |
1050 | osb = OCFS2_SB(sb); |
1051 | if (status < 0) { | |
1052 | mlog_errno(status); | |
1053 | goto read_super_error; | |
1054 | } | |
1055 | brelse(bh); | |
1056 | bh = NULL; | |
a68979b8 | 1057 | |
5297aad8 JK |
1058 | if (!ocfs2_check_set_options(sb, &parsed_options)) { |
1059 | status = -EINVAL; | |
1060 | goto read_super_error; | |
1061 | } | |
c0123ade TY |
1062 | osb->s_mount_opt = parsed_options.mount_opt; |
1063 | osb->s_atime_quantum = parsed_options.atime_quantum; | |
1064 | osb->preferred_slot = parsed_options.slot; | |
d147b3d6 | 1065 | osb->osb_commit_interval = parsed_options.commit_interval; |
73c8a800 MF |
1066 | |
1067 | ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); | |
d02f00cc | 1068 | osb->osb_resv_level = parsed_options.resv_level; |
83f92318 MF |
1069 | osb->osb_dir_resv_level = parsed_options.resv_level; |
1070 | if (parsed_options.dir_resv_level == -1) | |
1071 | osb->osb_dir_resv_level = parsed_options.resv_level; | |
1072 | else | |
1073 | osb->osb_dir_resv_level = parsed_options.dir_resv_level; | |
ccd979bd | 1074 | |
b61817e1 JB |
1075 | status = ocfs2_verify_userspace_stack(osb, &parsed_options); |
1076 | if (status) | |
1077 | goto read_super_error; | |
1078 | ||
ccd979bd MF |
1079 | sb->s_magic = OCFS2_SUPER_MAGIC; |
1080 | ||
a68979b8 TY |
1081 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
1082 | ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); | |
1083 | ||
ccd979bd MF |
1084 | /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, |
1085 | * heartbeat=none */ | |
1086 | if (bdev_read_only(sb->s_bdev)) { | |
1087 | if (!(sb->s_flags & MS_RDONLY)) { | |
1088 | status = -EACCES; | |
1089 | mlog(ML_ERROR, "Readonly device detected but readonly " | |
1090 | "mount was not specified.\n"); | |
1091 | goto read_super_error; | |
1092 | } | |
1093 | ||
1094 | /* You should not be able to start a local heartbeat | |
1095 | * on a readonly device. */ | |
1096 | if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { | |
1097 | status = -EROFS; | |
1098 | mlog(ML_ERROR, "Local heartbeat specified on readonly " | |
1099 | "device.\n"); | |
1100 | goto read_super_error; | |
1101 | } | |
1102 | ||
1103 | status = ocfs2_check_journals_nolocks(osb); | |
1104 | if (status < 0) { | |
1105 | if (status == -EROFS) | |
1106 | mlog(ML_ERROR, "Recovery required on readonly " | |
1107 | "file system, but write access is " | |
1108 | "unavailable.\n"); | |
1109 | else | |
2bd63216 | 1110 | mlog_errno(status); |
ccd979bd MF |
1111 | goto read_super_error; |
1112 | } | |
1113 | ||
1114 | ocfs2_set_ro_flag(osb, 1); | |
1115 | ||
1116 | printk(KERN_NOTICE "Readonly device detected. No cluster " | |
1117 | "services will be utilized for this mount. Recovery " | |
1118 | "will be skipped.\n"); | |
1119 | } | |
1120 | ||
1121 | if (!ocfs2_is_hard_readonly(osb)) { | |
ccd979bd MF |
1122 | if (sb->s_flags & MS_RDONLY) |
1123 | ocfs2_set_ro_flag(osb, 0); | |
1124 | } | |
1125 | ||
c271c5c2 SM |
1126 | status = ocfs2_verify_heartbeat(osb); |
1127 | if (status < 0) { | |
1128 | mlog_errno(status); | |
1129 | goto read_super_error; | |
1130 | } | |
1131 | ||
ccd979bd MF |
1132 | osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, |
1133 | ocfs2_debugfs_root); | |
1134 | if (!osb->osb_debug_root) { | |
1135 | status = -EINVAL; | |
1136 | mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); | |
1137 | goto read_super_error; | |
1138 | } | |
1139 | ||
50397507 SM |
1140 | osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, |
1141 | osb->osb_debug_root, | |
1142 | osb, | |
1143 | &ocfs2_osb_debug_fops); | |
1144 | if (!osb->osb_ctxt) { | |
1145 | status = -EINVAL; | |
1146 | mlog_errno(status); | |
1147 | goto read_super_error; | |
1148 | } | |
1149 | ||
73be192b JB |
1150 | if (ocfs2_meta_ecc(osb)) { |
1151 | status = ocfs2_blockcheck_stats_debugfs_install( | |
1152 | &osb->osb_ecc_stats, | |
1153 | osb->osb_debug_root); | |
1154 | if (status) { | |
1155 | mlog(ML_ERROR, | |
1156 | "Unable to create blockcheck statistics " | |
1157 | "files\n"); | |
1158 | goto read_super_error; | |
1159 | } | |
1160 | } | |
1161 | ||
ccd979bd MF |
1162 | status = ocfs2_mount_volume(sb); |
1163 | if (osb->root_inode) | |
1164 | inode = igrab(osb->root_inode); | |
1165 | ||
1166 | if (status < 0) | |
1167 | goto read_super_error; | |
1168 | ||
1169 | if (!inode) { | |
1170 | status = -EIO; | |
1171 | mlog_errno(status); | |
1172 | goto read_super_error; | |
1173 | } | |
1174 | ||
1175 | root = d_alloc_root(inode); | |
1176 | if (!root) { | |
1177 | status = -ENOMEM; | |
1178 | mlog_errno(status); | |
1179 | goto read_super_error; | |
1180 | } | |
1181 | ||
1182 | sb->s_root = root; | |
1183 | ||
1184 | ocfs2_complete_mount_recovery(osb); | |
1185 | ||
c271c5c2 SM |
1186 | if (ocfs2_mount_local(osb)) |
1187 | snprintf(nodestr, sizeof(nodestr), "local"); | |
1188 | else | |
19fdb624 | 1189 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
c271c5c2 SM |
1190 | |
1191 | printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " | |
781ee3e2 | 1192 | "with %s data mode.\n", |
c271c5c2 | 1193 | osb->dev_str, nodestr, osb->slot_num, |
ccd979bd MF |
1194 | osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : |
1195 | "ordered"); | |
1196 | ||
1197 | atomic_set(&osb->vol_state, VOLUME_MOUNTED); | |
1198 | wake_up(&osb->osb_mount_event); | |
1199 | ||
19ece546 JK |
1200 | /* Now we can initialize quotas because we can afford to wait |
1201 | * for cluster locks recovery now. That also means that truncation | |
1202 | * log recovery can happen but that waits for proper quota setup */ | |
1203 | if (!(sb->s_flags & MS_RDONLY)) { | |
1204 | status = ocfs2_enable_quotas(osb); | |
1205 | if (status < 0) { | |
1206 | /* We have to err-out specially here because | |
1207 | * s_root is already set */ | |
1208 | mlog_errno(status); | |
1209 | atomic_set(&osb->vol_state, VOLUME_DISABLED); | |
1210 | wake_up(&osb->osb_mount_event); | |
1211 | mlog_exit(status); | |
1212 | return status; | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | ocfs2_complete_quota_recovery(osb); | |
1217 | ||
1218 | /* Now we wake up again for processes waiting for quotas */ | |
1219 | atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); | |
1220 | wake_up(&osb->osb_mount_event); | |
1221 | ||
df152c24 | 1222 | /* Start this when the mount is almost sure of being successful */ |
8b712cd5 | 1223 | ocfs2_orphan_scan_start(osb); |
df152c24 | 1224 | |
ccd979bd MF |
1225 | mlog_exit(status); |
1226 | return status; | |
1227 | ||
1228 | read_super_error: | |
a81cb88b | 1229 | brelse(bh); |
ccd979bd MF |
1230 | |
1231 | if (inode) | |
1232 | iput(inode); | |
1233 | ||
1234 | if (osb) { | |
1235 | atomic_set(&osb->vol_state, VOLUME_DISABLED); | |
1236 | wake_up(&osb->osb_mount_event); | |
1237 | ocfs2_dismount_volume(sb, 1); | |
1238 | } | |
1239 | ||
1240 | mlog_exit(status); | |
1241 | return status; | |
1242 | } | |
1243 | ||
152a0836 | 1244 | static struct dentry *ocfs2_mount(struct file_system_type *fs_type, |
454e2398 DH |
1245 | int flags, |
1246 | const char *dev_name, | |
152a0836 | 1247 | void *data) |
ccd979bd | 1248 | { |
152a0836 | 1249 | return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); |
ccd979bd MF |
1250 | } |
1251 | ||
f7b1aa69 JK |
1252 | static void ocfs2_kill_sb(struct super_block *sb) |
1253 | { | |
1254 | struct ocfs2_super *osb = OCFS2_SB(sb); | |
1255 | ||
5fd13189 JK |
1256 | /* Failed mount? */ |
1257 | if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) | |
1258 | goto out; | |
1259 | ||
f7b1aa69 JK |
1260 | /* Prevent further queueing of inode drop events */ |
1261 | spin_lock(&dentry_list_lock); | |
1262 | ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); | |
1263 | spin_unlock(&dentry_list_lock); | |
1264 | /* Wait for work to finish and/or remove it */ | |
1265 | cancel_work_sync(&osb->dentry_lock_work); | |
5fd13189 | 1266 | out: |
f7b1aa69 JK |
1267 | kill_block_super(sb); |
1268 | } | |
1269 | ||
ccd979bd MF |
1270 | static struct file_system_type ocfs2_fs_type = { |
1271 | .owner = THIS_MODULE, | |
1272 | .name = "ocfs2", | |
152a0836 | 1273 | .mount = ocfs2_mount, |
f7b1aa69 JK |
1274 | .kill_sb = ocfs2_kill_sb, |
1275 | ||
1ba9da2f | 1276 | .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, |
ccd979bd MF |
1277 | .next = NULL |
1278 | }; | |
1279 | ||
5297aad8 JK |
1280 | static int ocfs2_check_set_options(struct super_block *sb, |
1281 | struct mount_options *options) | |
1282 | { | |
1283 | if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && | |
1284 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, | |
1285 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { | |
1286 | mlog(ML_ERROR, "User quotas were requested, but this " | |
1287 | "filesystem does not have the feature enabled.\n"); | |
1288 | return 0; | |
1289 | } | |
1290 | if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && | |
1291 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, | |
1292 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { | |
1293 | mlog(ML_ERROR, "Group quotas were requested, but this " | |
1294 | "filesystem does not have the feature enabled.\n"); | |
1295 | return 0; | |
1296 | } | |
1297 | if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && | |
1298 | !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { | |
1299 | mlog(ML_ERROR, "ACL support requested but extended attributes " | |
1300 | "feature is not enabled\n"); | |
1301 | return 0; | |
1302 | } | |
1303 | /* No ACL setting specified? Use XATTR feature... */ | |
1304 | if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | | |
1305 | OCFS2_MOUNT_NO_POSIX_ACL))) { | |
1306 | if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) | |
1307 | options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; | |
1308 | else | |
1309 | options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; | |
1310 | } | |
1311 | return 1; | |
1312 | } | |
1313 | ||
ccd979bd MF |
1314 | static int ocfs2_parse_options(struct super_block *sb, |
1315 | char *options, | |
c0123ade | 1316 | struct mount_options *mopt, |
ccd979bd MF |
1317 | int is_remount) |
1318 | { | |
1319 | int status; | |
1320 | char *p; | |
2c442719 | 1321 | u32 tmp; |
ccd979bd MF |
1322 | |
1323 | mlog_entry("remount: %d, options: \"%s\"\n", is_remount, | |
1324 | options ? options : "(none)"); | |
1325 | ||
d147b3d6 | 1326 | mopt->commit_interval = 0; |
4b37fcb7 | 1327 | mopt->mount_opt = OCFS2_MOUNT_NOINTR; |
c0123ade TY |
1328 | mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
1329 | mopt->slot = OCFS2_INVALID_SLOT; | |
73c8a800 | 1330 | mopt->localalloc_opt = -1; |
b61817e1 | 1331 | mopt->cluster_stack[0] = '\0'; |
d02f00cc | 1332 | mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; |
83f92318 | 1333 | mopt->dir_resv_level = -1; |
ccd979bd MF |
1334 | |
1335 | if (!options) { | |
1336 | status = 1; | |
1337 | goto bail; | |
1338 | } | |
1339 | ||
1340 | while ((p = strsep(&options, ",")) != NULL) { | |
1341 | int token, option; | |
1342 | substring_t args[MAX_OPT_ARGS]; | |
1343 | ||
1344 | if (!*p) | |
1345 | continue; | |
1346 | ||
1347 | token = match_token(p, tokens, args); | |
1348 | switch (token) { | |
1349 | case Opt_hb_local: | |
c0123ade | 1350 | mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; |
ccd979bd MF |
1351 | break; |
1352 | case Opt_hb_none: | |
2c442719 SM |
1353 | mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; |
1354 | break; | |
1355 | case Opt_hb_global: | |
1356 | mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; | |
ccd979bd MF |
1357 | break; |
1358 | case Opt_barrier: | |
1359 | if (match_int(&args[0], &option)) { | |
1360 | status = 0; | |
1361 | goto bail; | |
1362 | } | |
1363 | if (option) | |
c0123ade | 1364 | mopt->mount_opt |= OCFS2_MOUNT_BARRIER; |
ccd979bd | 1365 | else |
c0123ade | 1366 | mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; |
ccd979bd MF |
1367 | break; |
1368 | case Opt_intr: | |
c0123ade | 1369 | mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; |
ccd979bd MF |
1370 | break; |
1371 | case Opt_nointr: | |
c0123ade | 1372 | mopt->mount_opt |= OCFS2_MOUNT_NOINTR; |
ccd979bd MF |
1373 | break; |
1374 | case Opt_err_panic: | |
c0123ade | 1375 | mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; |
ccd979bd MF |
1376 | break; |
1377 | case Opt_err_ro: | |
c0123ade | 1378 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; |
ccd979bd MF |
1379 | break; |
1380 | case Opt_data_ordered: | |
c0123ade | 1381 | mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; |
ccd979bd MF |
1382 | break; |
1383 | case Opt_data_writeback: | |
c0123ade | 1384 | mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; |
ccd979bd | 1385 | break; |
cf1d6c76 TY |
1386 | case Opt_user_xattr: |
1387 | mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; | |
1388 | break; | |
1389 | case Opt_nouser_xattr: | |
1390 | mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; | |
1391 | break; | |
7f1a37e3 TY |
1392 | case Opt_atime_quantum: |
1393 | if (match_int(&args[0], &option)) { | |
1394 | status = 0; | |
1395 | goto bail; | |
1396 | } | |
1397 | if (option >= 0) | |
c0123ade | 1398 | mopt->atime_quantum = option; |
7f1a37e3 | 1399 | break; |
baf4661a SM |
1400 | case Opt_slot: |
1401 | option = 0; | |
1402 | if (match_int(&args[0], &option)) { | |
1403 | status = 0; | |
1404 | goto bail; | |
1405 | } | |
1406 | if (option) | |
c0123ade | 1407 | mopt->slot = (s16)option; |
baf4661a | 1408 | break; |
d147b3d6 MF |
1409 | case Opt_commit: |
1410 | option = 0; | |
1411 | if (match_int(&args[0], &option)) { | |
1412 | status = 0; | |
1413 | goto bail; | |
1414 | } | |
1415 | if (option < 0) | |
1416 | return 0; | |
1417 | if (option == 0) | |
2b4e30fb | 1418 | option = JBD2_DEFAULT_MAX_COMMIT_AGE; |
d147b3d6 MF |
1419 | mopt->commit_interval = HZ * option; |
1420 | break; | |
2fbe8d1e SM |
1421 | case Opt_localalloc: |
1422 | option = 0; | |
1423 | if (match_int(&args[0], &option)) { | |
1424 | status = 0; | |
1425 | goto bail; | |
1426 | } | |
73c8a800 | 1427 | if (option >= 0) |
2fbe8d1e SM |
1428 | mopt->localalloc_opt = option; |
1429 | break; | |
53fc622b MF |
1430 | case Opt_localflocks: |
1431 | /* | |
1432 | * Changing this during remount could race | |
1433 | * flock() requests, or "unbalance" existing | |
1434 | * ones (e.g., a lock is taken in one mode but | |
1435 | * dropped in the other). If users care enough | |
1436 | * to flip locking modes during remount, we | |
1437 | * could add a "local" flag to individual | |
1438 | * flock structures for proper tracking of | |
1439 | * state. | |
1440 | */ | |
1441 | if (!is_remount) | |
1442 | mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; | |
1443 | break; | |
b61817e1 JB |
1444 | case Opt_stack: |
1445 | /* Check both that the option we were passed | |
1446 | * is of the right length and that it is a proper | |
1447 | * string of the right length. | |
1448 | */ | |
1449 | if (((args[0].to - args[0].from) != | |
1450 | OCFS2_STACK_LABEL_LEN) || | |
1451 | (strnlen(args[0].from, | |
1452 | OCFS2_STACK_LABEL_LEN) != | |
1453 | OCFS2_STACK_LABEL_LEN)) { | |
1454 | mlog(ML_ERROR, | |
1455 | "Invalid cluster_stack option\n"); | |
1456 | status = 0; | |
1457 | goto bail; | |
1458 | } | |
1459 | memcpy(mopt->cluster_stack, args[0].from, | |
1460 | OCFS2_STACK_LABEL_LEN); | |
1461 | mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; | |
1462 | break; | |
12462f1d JB |
1463 | case Opt_inode64: |
1464 | mopt->mount_opt |= OCFS2_MOUNT_INODE64; | |
1465 | break; | |
19ece546 | 1466 | case Opt_usrquota: |
19ece546 JK |
1467 | mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; |
1468 | break; | |
1469 | case Opt_grpquota: | |
19ece546 JK |
1470 | mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; |
1471 | break; | |
7bdb0d18 TY |
1472 | case Opt_coherency_buffered: |
1473 | mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; | |
1474 | break; | |
1475 | case Opt_coherency_full: | |
1476 | mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; | |
1477 | break; | |
a68979b8 TY |
1478 | case Opt_acl: |
1479 | mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; | |
5297aad8 | 1480 | mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; |
a68979b8 TY |
1481 | break; |
1482 | case Opt_noacl: | |
5297aad8 | 1483 | mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; |
a68979b8 TY |
1484 | mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; |
1485 | break; | |
d02f00cc MF |
1486 | case Opt_resv_level: |
1487 | if (is_remount) | |
1488 | break; | |
1489 | if (match_int(&args[0], &option)) { | |
1490 | status = 0; | |
1491 | goto bail; | |
1492 | } | |
1493 | if (option >= OCFS2_MIN_RESV_LEVEL && | |
1494 | option < OCFS2_MAX_RESV_LEVEL) | |
1495 | mopt->resv_level = option; | |
1496 | break; | |
83f92318 MF |
1497 | case Opt_dir_resv_level: |
1498 | if (is_remount) | |
1499 | break; | |
1500 | if (match_int(&args[0], &option)) { | |
1501 | status = 0; | |
1502 | goto bail; | |
1503 | } | |
1504 | if (option >= OCFS2_MIN_RESV_LEVEL && | |
1505 | option < OCFS2_MAX_RESV_LEVEL) | |
1506 | mopt->dir_resv_level = option; | |
1507 | break; | |
ccd979bd MF |
1508 | default: |
1509 | mlog(ML_ERROR, | |
1510 | "Unrecognized mount option \"%s\" " | |
1511 | "or missing value\n", p); | |
1512 | status = 0; | |
1513 | goto bail; | |
1514 | } | |
1515 | } | |
1516 | ||
2c442719 SM |
1517 | /* Ensure only one heartbeat mode */ |
1518 | tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | | |
1519 | OCFS2_MOUNT_HB_NONE); | |
1520 | if (hweight32(tmp) != 1) { | |
1521 | mlog(ML_ERROR, "Invalid heartbeat mount options\n"); | |
1522 | status = 0; | |
1523 | goto bail; | |
1524 | } | |
1525 | ||
ccd979bd MF |
1526 | status = 1; |
1527 | ||
1528 | bail: | |
1529 | mlog_exit(status); | |
1530 | return status; | |
1531 | } | |
1532 | ||
d550071c SM |
1533 | static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) |
1534 | { | |
1535 | struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); | |
1536 | unsigned long opts = osb->s_mount_opt; | |
ebcee4b5 | 1537 | unsigned int local_alloc_megs; |
d550071c | 1538 | |
2c442719 SM |
1539 | if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { |
1540 | seq_printf(s, ",_netdev"); | |
1541 | if (opts & OCFS2_MOUNT_HB_LOCAL) | |
1542 | seq_printf(s, ",%s", OCFS2_HB_LOCAL); | |
1543 | else | |
1544 | seq_printf(s, ",%s", OCFS2_HB_GLOBAL); | |
1545 | } else | |
1546 | seq_printf(s, ",%s", OCFS2_HB_NONE); | |
d550071c SM |
1547 | |
1548 | if (opts & OCFS2_MOUNT_NOINTR) | |
1549 | seq_printf(s, ",nointr"); | |
1550 | ||
1551 | if (opts & OCFS2_MOUNT_DATA_WRITEBACK) | |
1552 | seq_printf(s, ",data=writeback"); | |
1553 | else | |
1554 | seq_printf(s, ",data=ordered"); | |
1555 | ||
1556 | if (opts & OCFS2_MOUNT_BARRIER) | |
1557 | seq_printf(s, ",barrier=1"); | |
1558 | ||
1559 | if (opts & OCFS2_MOUNT_ERRORS_PANIC) | |
1560 | seq_printf(s, ",errors=panic"); | |
1561 | else | |
1562 | seq_printf(s, ",errors=remount-ro"); | |
1563 | ||
1564 | if (osb->preferred_slot != OCFS2_INVALID_SLOT) | |
1565 | seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); | |
1566 | ||
1567 | if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) | |
1568 | seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); | |
1569 | ||
d147b3d6 MF |
1570 | if (osb->osb_commit_interval) |
1571 | seq_printf(s, ",commit=%u", | |
1572 | (unsigned) (osb->osb_commit_interval / HZ)); | |
1573 | ||
ebcee4b5 | 1574 | local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); |
6b82021b | 1575 | if (local_alloc_megs != ocfs2_la_default_mb(osb)) |
ebcee4b5 | 1576 | seq_printf(s, ",localalloc=%d", local_alloc_megs); |
2fbe8d1e | 1577 | |
53fc622b MF |
1578 | if (opts & OCFS2_MOUNT_LOCALFLOCKS) |
1579 | seq_printf(s, ",localflocks,"); | |
1580 | ||
b61817e1 JB |
1581 | if (osb->osb_cluster_stack[0]) |
1582 | seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, | |
1583 | osb->osb_cluster_stack); | |
19ece546 JK |
1584 | if (opts & OCFS2_MOUNT_USRQUOTA) |
1585 | seq_printf(s, ",usrquota"); | |
1586 | if (opts & OCFS2_MOUNT_GRPQUOTA) | |
1587 | seq_printf(s, ",grpquota"); | |
b61817e1 | 1588 | |
7bdb0d18 TY |
1589 | if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) |
1590 | seq_printf(s, ",coherency=buffered"); | |
1591 | else | |
1592 | seq_printf(s, ",coherency=full"); | |
1593 | ||
b0f73cfc SM |
1594 | if (opts & OCFS2_MOUNT_NOUSERXATTR) |
1595 | seq_printf(s, ",nouser_xattr"); | |
1596 | else | |
1597 | seq_printf(s, ",user_xattr"); | |
1598 | ||
12462f1d JB |
1599 | if (opts & OCFS2_MOUNT_INODE64) |
1600 | seq_printf(s, ",inode64"); | |
1601 | ||
a68979b8 TY |
1602 | if (opts & OCFS2_MOUNT_POSIX_ACL) |
1603 | seq_printf(s, ",acl"); | |
1604 | else | |
1605 | seq_printf(s, ",noacl"); | |
a68979b8 | 1606 | |
d02f00cc MF |
1607 | if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) |
1608 | seq_printf(s, ",resv_level=%d", osb->osb_resv_level); | |
1609 | ||
83f92318 MF |
1610 | if (osb->osb_dir_resv_level != osb->osb_resv_level) |
1611 | seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); | |
1612 | ||
d550071c SM |
1613 | return 0; |
1614 | } | |
1615 | ||
ccd979bd MF |
1616 | static int __init ocfs2_init(void) |
1617 | { | |
1618 | int status; | |
1619 | ||
1620 | mlog_entry_void(); | |
1621 | ||
1622 | ocfs2_print_version(); | |
1623 | ||
ccd979bd MF |
1624 | status = init_ocfs2_uptodate_cache(); |
1625 | if (status < 0) { | |
1626 | mlog_errno(status); | |
1627 | goto leave; | |
1628 | } | |
1629 | ||
1630 | status = ocfs2_initialize_mem_caches(); | |
1631 | if (status < 0) { | |
1632 | mlog_errno(status); | |
1633 | goto leave; | |
1634 | } | |
1635 | ||
1636 | ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); | |
1637 | if (!ocfs2_wq) { | |
1638 | status = -ENOMEM; | |
1639 | goto leave; | |
1640 | } | |
1641 | ||
ccd979bd MF |
1642 | ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); |
1643 | if (!ocfs2_debugfs_root) { | |
1644 | status = -EFAULT; | |
1645 | mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); | |
1646 | } | |
1647 | ||
171bf93c MF |
1648 | status = ocfs2_quota_setup(); |
1649 | if (status) | |
1650 | goto leave; | |
1651 | ||
63e0c48a JB |
1652 | ocfs2_set_locking_protocol(); |
1653 | ||
9e33d69f | 1654 | status = register_quota_format(&ocfs2_quota_format); |
ccd979bd MF |
1655 | leave: |
1656 | if (status < 0) { | |
171bf93c | 1657 | ocfs2_quota_shutdown(); |
ccd979bd MF |
1658 | ocfs2_free_mem_caches(); |
1659 | exit_ocfs2_uptodate_cache(); | |
ccd979bd MF |
1660 | } |
1661 | ||
1662 | mlog_exit(status); | |
1663 | ||
1664 | if (status >= 0) { | |
1665 | return register_filesystem(&ocfs2_fs_type); | |
1666 | } else | |
1667 | return -1; | |
1668 | } | |
1669 | ||
1670 | static void __exit ocfs2_exit(void) | |
1671 | { | |
1672 | mlog_entry_void(); | |
1673 | ||
171bf93c MF |
1674 | ocfs2_quota_shutdown(); |
1675 | ||
ccd979bd MF |
1676 | if (ocfs2_wq) { |
1677 | flush_workqueue(ocfs2_wq); | |
1678 | destroy_workqueue(ocfs2_wq); | |
1679 | } | |
1680 | ||
9e33d69f JK |
1681 | unregister_quota_format(&ocfs2_quota_format); |
1682 | ||
ccd979bd MF |
1683 | debugfs_remove(ocfs2_debugfs_root); |
1684 | ||
1685 | ocfs2_free_mem_caches(); | |
1686 | ||
1687 | unregister_filesystem(&ocfs2_fs_type); | |
1688 | ||
ccd979bd MF |
1689 | exit_ocfs2_uptodate_cache(); |
1690 | ||
1691 | mlog_exit_void(); | |
1692 | } | |
1693 | ||
1694 | static void ocfs2_put_super(struct super_block *sb) | |
1695 | { | |
1696 | mlog_entry("(0x%p)\n", sb); | |
1697 | ||
1698 | ocfs2_sync_blockdev(sb); | |
1699 | ocfs2_dismount_volume(sb, 0); | |
1700 | ||
1701 | mlog_exit_void(); | |
1702 | } | |
1703 | ||
726c3342 | 1704 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) |
ccd979bd MF |
1705 | { |
1706 | struct ocfs2_super *osb; | |
1707 | u32 numbits, freebits; | |
1708 | int status; | |
1709 | struct ocfs2_dinode *bm_lock; | |
1710 | struct buffer_head *bh = NULL; | |
1711 | struct inode *inode = NULL; | |
1712 | ||
726c3342 | 1713 | mlog_entry("(%p, %p)\n", dentry->d_sb, buf); |
ccd979bd | 1714 | |
726c3342 | 1715 | osb = OCFS2_SB(dentry->d_sb); |
ccd979bd MF |
1716 | |
1717 | inode = ocfs2_get_system_file_inode(osb, | |
1718 | GLOBAL_BITMAP_SYSTEM_INODE, | |
1719 | OCFS2_INVALID_SLOT); | |
1720 | if (!inode) { | |
1721 | mlog(ML_ERROR, "failed to get bitmap inode\n"); | |
1722 | status = -EIO; | |
1723 | goto bail; | |
1724 | } | |
1725 | ||
e63aecb6 | 1726 | status = ocfs2_inode_lock(inode, &bh, 0); |
ccd979bd MF |
1727 | if (status < 0) { |
1728 | mlog_errno(status); | |
1729 | goto bail; | |
1730 | } | |
1731 | ||
1732 | bm_lock = (struct ocfs2_dinode *) bh->b_data; | |
1733 | ||
1734 | numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); | |
1735 | freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); | |
1736 | ||
1737 | buf->f_type = OCFS2_SUPER_MAGIC; | |
726c3342 | 1738 | buf->f_bsize = dentry->d_sb->s_blocksize; |
ccd979bd MF |
1739 | buf->f_namelen = OCFS2_MAX_FILENAME_LEN; |
1740 | buf->f_blocks = ((sector_t) numbits) * | |
1741 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); | |
1742 | buf->f_bfree = ((sector_t) freebits) * | |
1743 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); | |
1744 | buf->f_bavail = buf->f_bfree; | |
1745 | buf->f_files = numbits; | |
1746 | buf->f_ffree = freebits; | |
837711f8 CL |
1747 | buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) |
1748 | & 0xFFFFFFFFUL; | |
1749 | buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, | |
1750 | OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; | |
ccd979bd MF |
1751 | |
1752 | brelse(bh); | |
1753 | ||
e63aecb6 | 1754 | ocfs2_inode_unlock(inode, 0); |
ccd979bd MF |
1755 | status = 0; |
1756 | bail: | |
1757 | if (inode) | |
1758 | iput(inode); | |
1759 | ||
1760 | mlog_exit(status); | |
1761 | ||
1762 | return status; | |
1763 | } | |
1764 | ||
51cc5068 | 1765 | static void ocfs2_inode_init_once(void *data) |
ccd979bd MF |
1766 | { |
1767 | struct ocfs2_inode_info *oi = data; | |
1768 | ||
a35afb83 CL |
1769 | oi->ip_flags = 0; |
1770 | oi->ip_open_count = 0; | |
1771 | spin_lock_init(&oi->ip_lock); | |
1772 | ocfs2_extent_map_init(&oi->vfs_inode); | |
1773 | INIT_LIST_HEAD(&oi->ip_io_markers); | |
a35afb83 | 1774 | oi->ip_dir_start_lookup = 0; |
ccd979bd | 1775 | |
a35afb83 | 1776 | init_rwsem(&oi->ip_alloc_sem); |
cf1d6c76 | 1777 | init_rwsem(&oi->ip_xattr_sem); |
a35afb83 | 1778 | mutex_init(&oi->ip_io_mutex); |
ccd979bd | 1779 | |
a35afb83 CL |
1780 | oi->ip_blkno = 0ULL; |
1781 | oi->ip_clusters = 0; | |
ccd979bd | 1782 | |
4fe370af MF |
1783 | ocfs2_resv_init_once(&oi->ip_la_data_resv); |
1784 | ||
a35afb83 | 1785 | ocfs2_lock_res_init_once(&oi->ip_rw_lockres); |
e63aecb6 | 1786 | ocfs2_lock_res_init_once(&oi->ip_inode_lockres); |
a35afb83 | 1787 | ocfs2_lock_res_init_once(&oi->ip_open_lockres); |
ccd979bd | 1788 | |
8cb471e8 | 1789 | ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), |
6e5a3d75 | 1790 | &ocfs2_inode_caching_ops); |
ccd979bd | 1791 | |
a35afb83 | 1792 | inode_init_once(&oi->vfs_inode); |
ccd979bd MF |
1793 | } |
1794 | ||
1795 | static int ocfs2_initialize_mem_caches(void) | |
1796 | { | |
1797 | ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", | |
fffb60f9 PJ |
1798 | sizeof(struct ocfs2_inode_info), |
1799 | 0, | |
1800 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| | |
1801 | SLAB_MEM_SPREAD), | |
20c2df83 | 1802 | ocfs2_inode_init_once); |
9e33d69f JK |
1803 | ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", |
1804 | sizeof(struct ocfs2_dquot), | |
1805 | 0, | |
1806 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| | |
1807 | SLAB_MEM_SPREAD), | |
1808 | NULL); | |
1809 | ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", | |
1810 | sizeof(struct ocfs2_quota_chunk), | |
1811 | 0, | |
1812 | (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), | |
1813 | NULL); | |
1814 | if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || | |
1815 | !ocfs2_qf_chunk_cachep) { | |
1816 | if (ocfs2_inode_cachep) | |
1817 | kmem_cache_destroy(ocfs2_inode_cachep); | |
1818 | if (ocfs2_dquot_cachep) | |
1819 | kmem_cache_destroy(ocfs2_dquot_cachep); | |
1820 | if (ocfs2_qf_chunk_cachep) | |
1821 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); | |
ccd979bd | 1822 | return -ENOMEM; |
9e33d69f | 1823 | } |
ccd979bd | 1824 | |
ccd979bd MF |
1825 | return 0; |
1826 | } | |
1827 | ||
1828 | static void ocfs2_free_mem_caches(void) | |
1829 | { | |
1830 | if (ocfs2_inode_cachep) | |
1831 | kmem_cache_destroy(ocfs2_inode_cachep); | |
ccd979bd | 1832 | ocfs2_inode_cachep = NULL; |
9e33d69f JK |
1833 | |
1834 | if (ocfs2_dquot_cachep) | |
1835 | kmem_cache_destroy(ocfs2_dquot_cachep); | |
1836 | ocfs2_dquot_cachep = NULL; | |
1837 | ||
1838 | if (ocfs2_qf_chunk_cachep) | |
1839 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); | |
1840 | ocfs2_qf_chunk_cachep = NULL; | |
ccd979bd MF |
1841 | } |
1842 | ||
1843 | static int ocfs2_get_sector(struct super_block *sb, | |
1844 | struct buffer_head **bh, | |
1845 | int block, | |
1846 | int sect_size) | |
1847 | { | |
1848 | if (!sb_set_blocksize(sb, sect_size)) { | |
1849 | mlog(ML_ERROR, "unable to set blocksize\n"); | |
1850 | return -EIO; | |
1851 | } | |
1852 | ||
1853 | *bh = sb_getblk(sb, block); | |
1854 | if (!*bh) { | |
1855 | mlog_errno(-EIO); | |
1856 | return -EIO; | |
1857 | } | |
1858 | lock_buffer(*bh); | |
1859 | if (!buffer_dirty(*bh)) | |
1860 | clear_buffer_uptodate(*bh); | |
1861 | unlock_buffer(*bh); | |
1862 | ll_rw_block(READ, 1, bh); | |
1863 | wait_on_buffer(*bh); | |
28d57d43 | 1864 | if (!buffer_uptodate(*bh)) { |
1865 | mlog_errno(-EIO); | |
1866 | brelse(*bh); | |
1867 | *bh = NULL; | |
1868 | return -EIO; | |
1869 | } | |
1870 | ||
ccd979bd MF |
1871 | return 0; |
1872 | } | |
1873 | ||
ccd979bd MF |
1874 | static int ocfs2_mount_volume(struct super_block *sb) |
1875 | { | |
1876 | int status = 0; | |
1877 | int unlock_super = 0; | |
1878 | struct ocfs2_super *osb = OCFS2_SB(sb); | |
1879 | ||
1880 | mlog_entry_void(); | |
1881 | ||
1882 | if (ocfs2_is_hard_readonly(osb)) | |
1883 | goto leave; | |
1884 | ||
ccd979bd MF |
1885 | status = ocfs2_dlm_init(osb); |
1886 | if (status < 0) { | |
1887 | mlog_errno(status); | |
1888 | goto leave; | |
1889 | } | |
1890 | ||
ccd979bd MF |
1891 | status = ocfs2_super_lock(osb, 1); |
1892 | if (status < 0) { | |
1893 | mlog_errno(status); | |
1894 | goto leave; | |
1895 | } | |
1896 | unlock_super = 1; | |
1897 | ||
1898 | /* This will load up the node map and add ourselves to it. */ | |
1899 | status = ocfs2_find_slot(osb); | |
1900 | if (status < 0) { | |
1901 | mlog_errno(status); | |
1902 | goto leave; | |
1903 | } | |
1904 | ||
ccd979bd MF |
1905 | /* load all node-local system inodes */ |
1906 | status = ocfs2_init_local_system_inodes(osb); | |
1907 | if (status < 0) { | |
1908 | mlog_errno(status); | |
1909 | goto leave; | |
1910 | } | |
1911 | ||
1912 | status = ocfs2_check_volume(osb); | |
1913 | if (status < 0) { | |
1914 | mlog_errno(status); | |
1915 | goto leave; | |
1916 | } | |
1917 | ||
1918 | status = ocfs2_truncate_log_init(osb); | |
06c59bb8 | 1919 | if (status < 0) |
ccd979bd | 1920 | mlog_errno(status); |
c271c5c2 | 1921 | |
ccd979bd MF |
1922 | leave: |
1923 | if (unlock_super) | |
1924 | ocfs2_super_unlock(osb, 1); | |
1925 | ||
1926 | mlog_exit(status); | |
1927 | return status; | |
1928 | } | |
1929 | ||
ccd979bd MF |
1930 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) |
1931 | { | |
286eaa95 | 1932 | int tmp, hangup_needed = 0; |
ccd979bd | 1933 | struct ocfs2_super *osb = NULL; |
c271c5c2 | 1934 | char nodestr[8]; |
ccd979bd MF |
1935 | |
1936 | mlog_entry("(0x%p)\n", sb); | |
1937 | ||
1938 | BUG_ON(!sb); | |
1939 | osb = OCFS2_SB(sb); | |
1940 | BUG_ON(!osb); | |
1941 | ||
50397507 SM |
1942 | debugfs_remove(osb->osb_ctxt); |
1943 | ||
f7b1aa69 JK |
1944 | /* |
1945 | * Flush inode dropping work queue so that deletes are | |
1946 | * performed while the filesystem is still working | |
1947 | */ | |
1948 | ocfs2_drop_all_dl_inodes(osb); | |
1949 | ||
692684e1 SM |
1950 | /* Orphan scan should be stopped as early as possible */ |
1951 | ocfs2_orphan_scan_stop(osb); | |
1952 | ||
19ece546 JK |
1953 | ocfs2_disable_quotas(osb); |
1954 | ||
ccd979bd MF |
1955 | ocfs2_shutdown_local_alloc(osb); |
1956 | ||
1957 | ocfs2_truncate_log_shutdown(osb); | |
1958 | ||
553abd04 JB |
1959 | /* This will disable recovery and flush any recovery work. */ |
1960 | ocfs2_recovery_exit(osb); | |
ccd979bd MF |
1961 | |
1962 | ocfs2_journal_shutdown(osb); | |
1963 | ||
1964 | ocfs2_sync_blockdev(sb); | |
1965 | ||
374a263e TM |
1966 | ocfs2_purge_refcount_trees(osb); |
1967 | ||
4670c46d JB |
1968 | /* No cluster connection means we've failed during mount, so skip |
1969 | * all the steps which depended on that to complete. */ | |
1970 | if (osb->cconn) { | |
ccd979bd MF |
1971 | tmp = ocfs2_super_lock(osb, 1); |
1972 | if (tmp < 0) { | |
1973 | mlog_errno(tmp); | |
1974 | return; | |
1975 | } | |
19b613d4 | 1976 | } |
ccd979bd | 1977 | |
19b613d4 MF |
1978 | if (osb->slot_num != OCFS2_INVALID_SLOT) |
1979 | ocfs2_put_slot(osb); | |
ccd979bd | 1980 | |
4670c46d | 1981 | if (osb->cconn) |
ccd979bd | 1982 | ocfs2_super_unlock(osb, 1); |
ccd979bd MF |
1983 | |
1984 | ocfs2_release_system_inodes(osb); | |
1985 | ||
6953b4c0 | 1986 | /* |
6953b4c0 JB |
1987 | * If we're dismounting due to mount error, mount.ocfs2 will clean |
1988 | * up heartbeat. If we're a local mount, there is no heartbeat. | |
1989 | * If we failed before we got a uuid_str yet, we can't stop | |
1990 | * heartbeat. Otherwise, do it. | |
1991 | */ | |
1992 | if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) | |
286eaa95 JB |
1993 | hangup_needed = 1; |
1994 | ||
1995 | if (osb->cconn) | |
1996 | ocfs2_dlm_shutdown(osb, hangup_needed); | |
1997 | ||
73be192b | 1998 | ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); |
286eaa95 JB |
1999 | debugfs_remove(osb->osb_debug_root); |
2000 | ||
2001 | if (hangup_needed) | |
6953b4c0 | 2002 | ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); |
ccd979bd MF |
2003 | |
2004 | atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); | |
2005 | ||
c271c5c2 SM |
2006 | if (ocfs2_mount_local(osb)) |
2007 | snprintf(nodestr, sizeof(nodestr), "local"); | |
2008 | else | |
19fdb624 | 2009 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
c271c5c2 SM |
2010 | |
2011 | printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", | |
2012 | osb->dev_str, nodestr); | |
ccd979bd MF |
2013 | |
2014 | ocfs2_delete_osb(osb); | |
2015 | kfree(osb); | |
2016 | sb->s_dev = 0; | |
2017 | sb->s_fs_info = NULL; | |
2018 | } | |
2019 | ||
2020 | static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, | |
2021 | unsigned uuid_bytes) | |
2022 | { | |
2023 | int i, ret; | |
2024 | char *ptr; | |
2025 | ||
2026 | BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); | |
2027 | ||
cd861280 | 2028 | osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); |
ccd979bd MF |
2029 | if (osb->uuid_str == NULL) |
2030 | return -ENOMEM; | |
2031 | ||
ccd979bd MF |
2032 | for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { |
2033 | /* print with null */ | |
2034 | ret = snprintf(ptr, 3, "%02X", uuid[i]); | |
2035 | if (ret != 2) /* drop super cleans up */ | |
2036 | return -EINVAL; | |
2037 | /* then only advance past the last char */ | |
2038 | ptr += 2; | |
2039 | } | |
2040 | ||
2041 | return 0; | |
2042 | } | |
2043 | ||
3bdb8efd PL |
2044 | /* Make sure entire volume is addressable by our journal. Requires |
2045 | osb_clusters_at_boot to be valid and for the journal to have been | |
2046 | initialized by ocfs2_journal_init(). */ | |
2047 | static int ocfs2_journal_addressable(struct ocfs2_super *osb) | |
2048 | { | |
2049 | int status = 0; | |
2050 | u64 max_block = | |
2051 | ocfs2_clusters_to_blocks(osb->sb, | |
2052 | osb->osb_clusters_at_boot) - 1; | |
2053 | ||
2054 | /* 32-bit block number is always OK. */ | |
2055 | if (max_block <= (u32)~0ULL) | |
2056 | goto out; | |
2057 | ||
2058 | /* Volume is "huge", so see if our journal is new enough to | |
2059 | support it. */ | |
2060 | if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, | |
2061 | OCFS2_FEATURE_COMPAT_JBD2_SB) && | |
2062 | jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, | |
2063 | JBD2_FEATURE_INCOMPAT_64BIT))) { | |
2064 | mlog(ML_ERROR, "The journal cannot address the entire volume. " | |
2065 | "Enable the 'block64' journal option with tunefs.ocfs2"); | |
2066 | status = -EFBIG; | |
2067 | goto out; | |
2068 | } | |
2069 | ||
2070 | out: | |
2071 | return status; | |
2072 | } | |
2073 | ||
ccd979bd MF |
2074 | static int ocfs2_initialize_super(struct super_block *sb, |
2075 | struct buffer_head *bh, | |
73be192b JB |
2076 | int sector_size, |
2077 | struct ocfs2_blockcheck_stats *stats) | |
ccd979bd | 2078 | { |
bddb8eb3 | 2079 | int status; |
5a254031 MF |
2080 | int i, cbits, bbits; |
2081 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; | |
ccd979bd | 2082 | struct inode *inode = NULL; |
ccd979bd MF |
2083 | struct ocfs2_journal *journal; |
2084 | __le32 uuid_net_key; | |
2085 | struct ocfs2_super *osb; | |
3bdb8efd | 2086 | u64 total_blocks; |
ccd979bd MF |
2087 | |
2088 | mlog_entry_void(); | |
2089 | ||
cd861280 | 2090 | osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); |
ccd979bd MF |
2091 | if (!osb) { |
2092 | status = -ENOMEM; | |
2093 | mlog_errno(status); | |
2094 | goto bail; | |
2095 | } | |
2096 | ||
2097 | sb->s_fs_info = osb; | |
2098 | sb->s_op = &ocfs2_sops; | |
2099 | sb->s_export_op = &ocfs2_export_ops; | |
19ece546 JK |
2100 | sb->s_qcop = &ocfs2_quotactl_ops; |
2101 | sb->dq_op = &ocfs2_quota_operations; | |
cf1d6c76 | 2102 | sb->s_xattr = ocfs2_xattr_handlers; |
e0dceaf0 | 2103 | sb->s_time_gran = 1; |
ccd979bd MF |
2104 | sb->s_flags |= MS_NOATIME; |
2105 | /* this is needed to support O_LARGEFILE */ | |
5a254031 MF |
2106 | cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); |
2107 | bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); | |
2108 | sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); | |
ccd979bd | 2109 | |
9b7895ef MF |
2110 | osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; |
2111 | ||
2112 | for (i = 0; i < 3; i++) | |
2113 | osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); | |
2114 | osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); | |
2115 | ||
ccd979bd MF |
2116 | osb->sb = sb; |
2117 | /* Save off for ocfs2_rw_direct */ | |
2118 | osb->s_sectsize_bits = blksize_bits(sector_size); | |
ebdec83b | 2119 | BUG_ON(!osb->s_sectsize_bits); |
ccd979bd | 2120 | |
34d024f8 MF |
2121 | spin_lock_init(&osb->dc_task_lock); |
2122 | init_waitqueue_head(&osb->dc_event); | |
2123 | osb->dc_work_sequence = 0; | |
2124 | osb->dc_wake_sequence = 0; | |
ccd979bd MF |
2125 | INIT_LIST_HEAD(&osb->blocked_lock_list); |
2126 | osb->blocked_lock_count = 0; | |
ccd979bd | 2127 | spin_lock_init(&osb->osb_lock); |
c8b9cf9a | 2128 | spin_lock_init(&osb->osb_xattr_lock); |
b89c5428 | 2129 | ocfs2_init_steal_slots(osb); |
ccd979bd MF |
2130 | |
2131 | atomic_set(&osb->alloc_stats.moves, 0); | |
2132 | atomic_set(&osb->alloc_stats.local_data, 0); | |
2133 | atomic_set(&osb->alloc_stats.bitmap_data, 0); | |
2134 | atomic_set(&osb->alloc_stats.bg_allocs, 0); | |
2135 | atomic_set(&osb->alloc_stats.bg_extends, 0); | |
2136 | ||
73be192b JB |
2137 | /* Copy the blockcheck stats from the superblock probe */ |
2138 | osb->osb_ecc_stats = *stats; | |
2139 | ||
ccd979bd MF |
2140 | ocfs2_init_node_maps(osb); |
2141 | ||
2142 | snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", | |
2143 | MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); | |
2144 | ||
75d9bbc7 GR |
2145 | osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); |
2146 | if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { | |
2147 | mlog(ML_ERROR, "Invalid number of node slots (%u)\n", | |
2148 | osb->max_slots); | |
2149 | status = -EINVAL; | |
2150 | goto bail; | |
2151 | } | |
2152 | mlog(0, "max_slots for this device: %u\n", osb->max_slots); | |
2153 | ||
8b712cd5 JM |
2154 | ocfs2_orphan_scan_init(osb); |
2155 | ||
553abd04 JB |
2156 | status = ocfs2_recovery_init(osb); |
2157 | if (status) { | |
2158 | mlog(ML_ERROR, "Unable to initialize recovery state\n"); | |
2159 | mlog_errno(status); | |
2160 | goto bail; | |
2161 | } | |
ccd979bd MF |
2162 | |
2163 | init_waitqueue_head(&osb->checkpoint_event); | |
2164 | atomic_set(&osb->needs_checkpoint, 0); | |
2165 | ||
7f1a37e3 TY |
2166 | osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
2167 | ||
ccd979bd MF |
2168 | osb->slot_num = OCFS2_INVALID_SLOT; |
2169 | ||
8154da3d TY |
2170 | osb->s_xattr_inline_size = le16_to_cpu( |
2171 | di->id2.i_super.s_xattr_inline_size); | |
fdd77704 | 2172 | |
ccd979bd MF |
2173 | osb->local_alloc_state = OCFS2_LA_UNUSED; |
2174 | osb->local_alloc_bh = NULL; | |
9c7af40b | 2175 | INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); |
ccd979bd | 2176 | |
ccd979bd MF |
2177 | init_waitqueue_head(&osb->osb_mount_event); |
2178 | ||
d02f00cc MF |
2179 | status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); |
2180 | if (status) { | |
2181 | mlog_errno(status); | |
2182 | goto bail; | |
2183 | } | |
2184 | ||
ccd979bd MF |
2185 | osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); |
2186 | if (!osb->vol_label) { | |
2187 | mlog(ML_ERROR, "unable to alloc vol label\n"); | |
2188 | status = -ENOMEM; | |
2189 | goto bail; | |
2190 | } | |
2191 | ||
539d8264 SM |
2192 | osb->slot_recovery_generations = |
2193 | kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), | |
2194 | GFP_KERNEL); | |
2195 | if (!osb->slot_recovery_generations) { | |
2196 | status = -ENOMEM; | |
2197 | mlog_errno(status); | |
2198 | goto bail; | |
2199 | } | |
2200 | ||
b4df6ed8 MF |
2201 | init_waitqueue_head(&osb->osb_wipe_event); |
2202 | osb->osb_orphan_wipes = kcalloc(osb->max_slots, | |
2203 | sizeof(*osb->osb_orphan_wipes), | |
2204 | GFP_KERNEL); | |
2205 | if (!osb->osb_orphan_wipes) { | |
2206 | status = -ENOMEM; | |
2207 | mlog_errno(status); | |
2208 | goto bail; | |
2209 | } | |
2210 | ||
374a263e TM |
2211 | osb->osb_rf_lock_tree = RB_ROOT; |
2212 | ||
ccd979bd MF |
2213 | osb->s_feature_compat = |
2214 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); | |
2215 | osb->s_feature_ro_compat = | |
2216 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); | |
2217 | osb->s_feature_incompat = | |
2218 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); | |
2219 | ||
2220 | if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { | |
2221 | mlog(ML_ERROR, "couldn't mount because of unsupported " | |
2222 | "optional features (%x).\n", i); | |
2223 | status = -EINVAL; | |
2224 | goto bail; | |
2225 | } | |
2226 | if (!(osb->sb->s_flags & MS_RDONLY) && | |
2227 | (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { | |
2228 | mlog(ML_ERROR, "couldn't mount RDWR because of " | |
2229 | "unsupported optional features (%x).\n", i); | |
2230 | status = -EINVAL; | |
2231 | goto bail; | |
2232 | } | |
2233 | ||
98f486f2 SM |
2234 | if (ocfs2_clusterinfo_valid(osb)) { |
2235 | osb->osb_stackflags = | |
2236 | OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; | |
b61817e1 JB |
2237 | memcpy(osb->osb_cluster_stack, |
2238 | OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, | |
2239 | OCFS2_STACK_LABEL_LEN); | |
2240 | osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; | |
2241 | if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { | |
2242 | mlog(ML_ERROR, | |
2243 | "couldn't mount because of an invalid " | |
2244 | "cluster stack label (%s) \n", | |
2245 | osb->osb_cluster_stack); | |
2246 | status = -EINVAL; | |
2247 | goto bail; | |
2248 | } | |
2249 | } else { | |
2250 | /* The empty string is identical with classic tools that | |
2251 | * don't know about s_cluster_info. */ | |
2252 | osb->osb_cluster_stack[0] = '\0'; | |
2253 | } | |
2254 | ||
ccd979bd MF |
2255 | get_random_bytes(&osb->s_next_generation, sizeof(u32)); |
2256 | ||
2257 | /* FIXME | |
2258 | * This should be done in ocfs2_journal_init(), but unknown | |
2259 | * ordering issues will cause the filesystem to crash. | |
2260 | * If anyone wants to figure out what part of the code | |
2261 | * refers to osb->journal before ocfs2_journal_init() is run, | |
2262 | * be my guest. | |
2263 | */ | |
2264 | /* initialize our journal structure */ | |
2265 | ||
cd861280 | 2266 | journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); |
ccd979bd MF |
2267 | if (!journal) { |
2268 | mlog(ML_ERROR, "unable to alloc journal\n"); | |
2269 | status = -ENOMEM; | |
2270 | goto bail; | |
2271 | } | |
2272 | osb->journal = journal; | |
2273 | journal->j_osb = osb; | |
2274 | ||
2275 | atomic_set(&journal->j_num_trans, 0); | |
2276 | init_rwsem(&journal->j_trans_barrier); | |
2277 | init_waitqueue_head(&journal->j_checkpointed); | |
2278 | spin_lock_init(&journal->j_lock); | |
2279 | journal->j_trans_id = (unsigned long) 1; | |
2280 | INIT_LIST_HEAD(&journal->j_la_cleanups); | |
c4028958 | 2281 | INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); |
ccd979bd MF |
2282 | journal->j_state = OCFS2_JOURNAL_FREE; |
2283 | ||
ea455f8a JK |
2284 | INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); |
2285 | osb->dentry_lock_list = NULL; | |
2286 | ||
ccd979bd MF |
2287 | /* get some pseudo constants for clustersize bits */ |
2288 | osb->s_clustersize_bits = | |
2289 | le32_to_cpu(di->id2.i_super.s_clustersize_bits); | |
2290 | osb->s_clustersize = 1 << osb->s_clustersize_bits; | |
2291 | mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); | |
2292 | ||
2293 | if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || | |
2294 | osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { | |
2295 | mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", | |
2296 | osb->s_clustersize); | |
2297 | status = -EINVAL; | |
2298 | goto bail; | |
2299 | } | |
2300 | ||
3bdb8efd PL |
2301 | total_blocks = ocfs2_clusters_to_blocks(osb->sb, |
2302 | le32_to_cpu(di->i_clusters)); | |
2303 | ||
2304 | status = generic_check_addressable(osb->sb->s_blocksize_bits, | |
2305 | total_blocks); | |
2306 | if (status) { | |
2307 | mlog(ML_ERROR, "Volume too large " | |
2308 | "to mount safely on this system"); | |
2309 | status = -EFBIG; | |
ccd979bd MF |
2310 | goto bail; |
2311 | } | |
2312 | ||
2313 | if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, | |
2314 | sizeof(di->id2.i_super.s_uuid))) { | |
2315 | mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); | |
2316 | status = -ENOMEM; | |
2317 | goto bail; | |
2318 | } | |
2319 | ||
78427043 | 2320 | memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); |
ccd979bd MF |
2321 | |
2322 | strncpy(osb->vol_label, di->id2.i_super.s_label, 63); | |
2323 | osb->vol_label[63] = '\0'; | |
2324 | osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); | |
2325 | osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); | |
2326 | osb->first_cluster_group_blkno = | |
2327 | le64_to_cpu(di->id2.i_super.s_first_cluster_group); | |
2328 | osb->fs_generation = le32_to_cpu(di->i_fs_generation); | |
cf1d6c76 | 2329 | osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); |
ccd979bd MF |
2330 | mlog(0, "vol_label: %s\n", osb->vol_label); |
2331 | mlog(0, "uuid: %s\n", osb->uuid_str); | |
b0697053 MF |
2332 | mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", |
2333 | (unsigned long long)osb->root_blkno, | |
2334 | (unsigned long long)osb->system_dir_blkno); | |
ccd979bd MF |
2335 | |
2336 | osb->osb_dlm_debug = ocfs2_new_dlm_debug(); | |
2337 | if (!osb->osb_dlm_debug) { | |
2338 | status = -ENOMEM; | |
2339 | mlog_errno(status); | |
2340 | goto bail; | |
2341 | } | |
2342 | ||
2343 | atomic_set(&osb->vol_state, VOLUME_INIT); | |
2344 | ||
2345 | /* load root, system_dir, and all global system inodes */ | |
2346 | status = ocfs2_init_global_system_inodes(osb); | |
2347 | if (status < 0) { | |
2348 | mlog_errno(status); | |
2349 | goto bail; | |
2350 | } | |
2351 | ||
2352 | /* | |
2353 | * global bitmap | |
2354 | */ | |
2355 | inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, | |
2356 | OCFS2_INVALID_SLOT); | |
2357 | if (!inode) { | |
2358 | status = -EINVAL; | |
2359 | mlog_errno(status); | |
2360 | goto bail; | |
2361 | } | |
2362 | ||
2363 | osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; | |
6b82021b | 2364 | osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; |
ccd979bd | 2365 | iput(inode); |
ccd979bd | 2366 | |
8571882c TM |
2367 | osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, |
2368 | osb->s_feature_incompat) * 8; | |
ccd979bd MF |
2369 | |
2370 | status = ocfs2_init_slot_info(osb); | |
2371 | if (status < 0) { | |
2372 | mlog_errno(status); | |
2373 | goto bail; | |
2374 | } | |
2375 | ||
ccd979bd MF |
2376 | bail: |
2377 | mlog_exit(status); | |
2378 | return status; | |
2379 | } | |
2380 | ||
2381 | /* | |
2382 | * will return: -EAGAIN if it is ok to keep searching for superblocks | |
2383 | * -EINVAL if there is a bad superblock | |
2384 | * 0 on success | |
2385 | */ | |
2386 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, | |
2387 | struct buffer_head *bh, | |
73be192b JB |
2388 | u32 blksz, |
2389 | struct ocfs2_blockcheck_stats *stats) | |
ccd979bd MF |
2390 | { |
2391 | int status = -EAGAIN; | |
2392 | ||
2393 | mlog_entry_void(); | |
2394 | ||
2395 | if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, | |
2396 | strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { | |
d030cc97 JB |
2397 | /* We have to do a raw check of the feature here */ |
2398 | if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & | |
2399 | OCFS2_FEATURE_INCOMPAT_META_ECC) { | |
2400 | status = ocfs2_block_check_validate(bh->b_data, | |
2401 | bh->b_size, | |
73be192b JB |
2402 | &di->i_check, |
2403 | stats); | |
d030cc97 JB |
2404 | if (status) |
2405 | goto out; | |
2406 | } | |
ccd979bd MF |
2407 | status = -EINVAL; |
2408 | if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { | |
2409 | mlog(ML_ERROR, "found superblock with incorrect block " | |
2410 | "size: found %u, should be %u\n", | |
2411 | 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), | |
2412 | blksz); | |
2413 | } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != | |
2414 | OCFS2_MAJOR_REV_LEVEL || | |
2415 | le16_to_cpu(di->id2.i_super.s_minor_rev_level) != | |
2416 | OCFS2_MINOR_REV_LEVEL) { | |
2417 | mlog(ML_ERROR, "found superblock with bad version: " | |
2418 | "found %u.%u, should be %u.%u\n", | |
2419 | le16_to_cpu(di->id2.i_super.s_major_rev_level), | |
2420 | le16_to_cpu(di->id2.i_super.s_minor_rev_level), | |
2421 | OCFS2_MAJOR_REV_LEVEL, | |
2422 | OCFS2_MINOR_REV_LEVEL); | |
2423 | } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { | |
2424 | mlog(ML_ERROR, "bad block number on superblock: " | |
b0697053 | 2425 | "found %llu, should be %llu\n", |
1ca1a111 | 2426 | (unsigned long long)le64_to_cpu(di->i_blkno), |
b0697053 | 2427 | (unsigned long long)bh->b_blocknr); |
ccd979bd MF |
2428 | } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || |
2429 | le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { | |
2430 | mlog(ML_ERROR, "bad cluster size found: %u\n", | |
2431 | 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); | |
2432 | } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { | |
2433 | mlog(ML_ERROR, "bad root_blkno: 0\n"); | |
2434 | } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { | |
2435 | mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); | |
2436 | } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { | |
2437 | mlog(ML_ERROR, | |
2438 | "Superblock slots found greater than file system " | |
2439 | "maximum: found %u, max %u\n", | |
2440 | le16_to_cpu(di->id2.i_super.s_max_slots), | |
2441 | OCFS2_MAX_SLOTS); | |
2442 | } else { | |
2443 | /* found it! */ | |
2444 | status = 0; | |
2445 | } | |
2446 | } | |
2447 | ||
d030cc97 | 2448 | out: |
ccd979bd MF |
2449 | mlog_exit(status); |
2450 | return status; | |
2451 | } | |
2452 | ||
2453 | static int ocfs2_check_volume(struct ocfs2_super *osb) | |
2454 | { | |
bddb8eb3 | 2455 | int status; |
ccd979bd | 2456 | int dirty; |
c271c5c2 | 2457 | int local; |
ccd979bd MF |
2458 | struct ocfs2_dinode *local_alloc = NULL; /* only used if we |
2459 | * recover | |
2460 | * ourselves. */ | |
2461 | ||
2462 | mlog_entry_void(); | |
2463 | ||
2464 | /* Init our journal object. */ | |
2465 | status = ocfs2_journal_init(osb->journal, &dirty); | |
2466 | if (status < 0) { | |
2467 | mlog(ML_ERROR, "Could not initialize journal!\n"); | |
2468 | goto finally; | |
2469 | } | |
2470 | ||
3bdb8efd PL |
2471 | /* Now that journal has been initialized, check to make sure |
2472 | entire volume is addressable. */ | |
2473 | status = ocfs2_journal_addressable(osb); | |
2474 | if (status) | |
2475 | goto finally; | |
2476 | ||
ccd979bd MF |
2477 | /* If the journal was unmounted cleanly then we don't want to |
2478 | * recover anything. Otherwise, journal_load will do that | |
2479 | * dirty work for us :) */ | |
2480 | if (!dirty) { | |
2481 | status = ocfs2_journal_wipe(osb->journal, 0); | |
2482 | if (status < 0) { | |
2483 | mlog_errno(status); | |
2484 | goto finally; | |
2485 | } | |
2486 | } else { | |
2487 | mlog(ML_NOTICE, "File system was not unmounted cleanly, " | |
2488 | "recovering volume.\n"); | |
2489 | } | |
2490 | ||
c271c5c2 SM |
2491 | local = ocfs2_mount_local(osb); |
2492 | ||
ccd979bd | 2493 | /* will play back anything left in the journal. */ |
539d8264 | 2494 | status = ocfs2_journal_load(osb->journal, local, dirty); |
01af4820 WW |
2495 | if (status < 0) { |
2496 | mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); | |
2497 | goto finally; | |
2498 | } | |
ccd979bd MF |
2499 | |
2500 | if (dirty) { | |
2501 | /* recover my local alloc if we didn't unmount cleanly. */ | |
2502 | status = ocfs2_begin_local_alloc_recovery(osb, | |
2503 | osb->slot_num, | |
2504 | &local_alloc); | |
2505 | if (status < 0) { | |
2506 | mlog_errno(status); | |
2507 | goto finally; | |
2508 | } | |
2509 | /* we complete the recovery process after we've marked | |
2510 | * ourselves as mounted. */ | |
2511 | } | |
2512 | ||
2513 | mlog(0, "Journal loaded.\n"); | |
2514 | ||
2515 | status = ocfs2_load_local_alloc(osb); | |
2516 | if (status < 0) { | |
2517 | mlog_errno(status); | |
2518 | goto finally; | |
2519 | } | |
2520 | ||
2521 | if (dirty) { | |
2522 | /* Recovery will be completed after we've mounted the | |
2523 | * rest of the volume. */ | |
2524 | osb->dirty = 1; | |
2525 | osb->local_alloc_copy = local_alloc; | |
2526 | local_alloc = NULL; | |
2527 | } | |
2528 | ||
2529 | /* go through each journal, trylock it and if you get the | |
2530 | * lock, and it's marked as dirty, set the bit in the recover | |
2531 | * map and launch a recovery thread for it. */ | |
2532 | status = ocfs2_mark_dead_nodes(osb); | |
9140db04 SE |
2533 | if (status < 0) { |
2534 | mlog_errno(status); | |
2535 | goto finally; | |
2536 | } | |
2537 | ||
2538 | status = ocfs2_compute_replay_slots(osb); | |
ccd979bd MF |
2539 | if (status < 0) |
2540 | mlog_errno(status); | |
2541 | ||
2542 | finally: | |
2543 | if (local_alloc) | |
2544 | kfree(local_alloc); | |
2545 | ||
2546 | mlog_exit(status); | |
2547 | return status; | |
2548 | } | |
2549 | ||
2550 | /* | |
2551 | * The routine gets called from dismount or close whenever a dismount on | |
2552 | * volume is requested and the osb open count becomes 1. | |
2553 | * It will remove the osb from the global list and also free up all the | |
2554 | * initialized resources and fileobject. | |
2555 | */ | |
2556 | static void ocfs2_delete_osb(struct ocfs2_super *osb) | |
2557 | { | |
2558 | mlog_entry_void(); | |
2559 | ||
2560 | /* This function assumes that the caller has the main osb resource */ | |
2561 | ||
8e8a4603 | 2562 | ocfs2_free_slot_info(osb); |
ccd979bd | 2563 | |
b4df6ed8 | 2564 | kfree(osb->osb_orphan_wipes); |
539d8264 | 2565 | kfree(osb->slot_recovery_generations); |
ccd979bd MF |
2566 | /* FIXME |
2567 | * This belongs in journal shutdown, but because we have to | |
421f91d2 | 2568 | * allocate osb->journal at the start of ocfs2_initialize_osb(), |
ccd979bd MF |
2569 | * we free it here. |
2570 | */ | |
2571 | kfree(osb->journal); | |
2572 | if (osb->local_alloc_copy) | |
2573 | kfree(osb->local_alloc_copy); | |
2574 | kfree(osb->uuid_str); | |
2575 | ocfs2_put_dlm_debug(osb->osb_dlm_debug); | |
2576 | memset(osb, 0, sizeof(struct ocfs2_super)); | |
2577 | ||
2578 | mlog_exit_void(); | |
2579 | } | |
2580 | ||
2581 | /* Put OCFS2 into a readonly state, or (if the user specifies it), | |
2582 | * panic(). We do not support continue-on-error operation. */ | |
2583 | static void ocfs2_handle_error(struct super_block *sb) | |
2584 | { | |
2585 | struct ocfs2_super *osb = OCFS2_SB(sb); | |
2586 | ||
2587 | if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) | |
2588 | panic("OCFS2: (device %s): panic forced after error\n", | |
2589 | sb->s_id); | |
2590 | ||
2591 | ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); | |
2592 | ||
2593 | if (sb->s_flags & MS_RDONLY && | |
2594 | (ocfs2_is_soft_readonly(osb) || | |
2595 | ocfs2_is_hard_readonly(osb))) | |
2596 | return; | |
2597 | ||
2598 | printk(KERN_CRIT "File system is now read-only due to the potential " | |
2599 | "of on-disk corruption. Please run fsck.ocfs2 once the file " | |
2600 | "system is unmounted.\n"); | |
2601 | sb->s_flags |= MS_RDONLY; | |
2602 | ocfs2_set_ro_flag(osb, 0); | |
2603 | } | |
2604 | ||
2605 | static char error_buf[1024]; | |
2606 | ||
2607 | void __ocfs2_error(struct super_block *sb, | |
2608 | const char *function, | |
2609 | const char *fmt, ...) | |
2610 | { | |
2611 | va_list args; | |
2612 | ||
2613 | va_start(args, fmt); | |
4a6e617a | 2614 | vsnprintf(error_buf, sizeof(error_buf), fmt, args); |
ccd979bd MF |
2615 | va_end(args); |
2616 | ||
2617 | /* Not using mlog here because we want to show the actual | |
2618 | * function the error came from. */ | |
2619 | printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", | |
2620 | sb->s_id, function, error_buf); | |
2621 | ||
2622 | ocfs2_handle_error(sb); | |
2623 | } | |
2624 | ||
2625 | /* Handle critical errors. This is intentionally more drastic than | |
2626 | * ocfs2_handle_error, so we only use for things like journal errors, | |
2627 | * etc. */ | |
2628 | void __ocfs2_abort(struct super_block* sb, | |
2629 | const char *function, | |
2630 | const char *fmt, ...) | |
2631 | { | |
2632 | va_list args; | |
2633 | ||
2634 | va_start(args, fmt); | |
4a6e617a | 2635 | vsnprintf(error_buf, sizeof(error_buf), fmt, args); |
ccd979bd MF |
2636 | va_end(args); |
2637 | ||
2638 | printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", | |
2639 | sb->s_id, function, error_buf); | |
2640 | ||
2641 | /* We don't have the cluster support yet to go straight to | |
2642 | * hard readonly in here. Until then, we want to keep | |
2643 | * ocfs2_abort() so that we can at least mark critical | |
2644 | * errors. | |
2645 | * | |
2646 | * TODO: This should abort the journal and alert other nodes | |
2647 | * that our slot needs recovery. */ | |
2648 | ||
2649 | /* Force a panic(). This stinks, but it's better than letting | |
2650 | * things continue without having a proper hard readonly | |
2651 | * here. */ | |
a2f2ddbf SM |
2652 | if (!ocfs2_mount_local(OCFS2_SB(sb))) |
2653 | OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; | |
ccd979bd MF |
2654 | ocfs2_handle_error(sb); |
2655 | } | |
2656 | ||
e4b963f1 JB |
2657 | /* |
2658 | * Void signal blockers, because in-kernel sigprocmask() only fails | |
2659 | * when SIG_* is wrong. | |
2660 | */ | |
2661 | void ocfs2_block_signals(sigset_t *oldset) | |
2662 | { | |
2663 | int rc; | |
2664 | sigset_t blocked; | |
2665 | ||
2666 | sigfillset(&blocked); | |
2667 | rc = sigprocmask(SIG_BLOCK, &blocked, oldset); | |
2668 | BUG_ON(rc); | |
2669 | } | |
2670 | ||
2671 | void ocfs2_unblock_signals(sigset_t *oldset) | |
2672 | { | |
2673 | int rc = sigprocmask(SIG_SETMASK, oldset, NULL); | |
2674 | BUG_ON(rc); | |
2675 | } | |
2676 | ||
ccd979bd MF |
2677 | module_init(ocfs2_init); |
2678 | module_exit(ocfs2_exit); |