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328970de | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
ccd979bd MF |
2 | /* -*- mode: c; c-basic-offset: 8; -*- |
3 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
4 | * | |
5 | * super.c | |
6 | * | |
7 | * load/unload driver, mount/dismount volumes | |
8 | * | |
9 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
ccd979bd MF |
10 | */ |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/types.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/highmem.h> | |
ccd979bd MF |
17 | #include <linux/init.h> |
18 | #include <linux/random.h> | |
19 | #include <linux/statfs.h> | |
20 | #include <linux/moduleparam.h> | |
21 | #include <linux/blkdev.h> | |
22 | #include <linux/socket.h> | |
23 | #include <linux/inet.h> | |
24 | #include <linux/parser.h> | |
25 | #include <linux/crc32.h> | |
26 | #include <linux/debugfs.h> | |
d550071c | 27 | #include <linux/mount.h> |
6953b4c0 | 28 | #include <linux/seq_file.h> |
19ece546 | 29 | #include <linux/quotaops.h> |
1cfd8bd0 | 30 | #include <linux/cleancache.h> |
f361bf4a | 31 | #include <linux/signal.h> |
ccd979bd | 32 | |
80a9a84d WW |
33 | #define CREATE_TRACE_POINTS |
34 | #include "ocfs2_trace.h" | |
35 | ||
ccd979bd MF |
36 | #include <cluster/masklog.h> |
37 | ||
38 | #include "ocfs2.h" | |
39 | ||
40 | /* this should be the only file to include a version 1 header */ | |
41 | #include "ocfs1_fs_compat.h" | |
42 | ||
43 | #include "alloc.h" | |
a11f7e63 | 44 | #include "aops.h" |
d030cc97 | 45 | #include "blockcheck.h" |
ccd979bd MF |
46 | #include "dlmglue.h" |
47 | #include "export.h" | |
48 | #include "extent_map.h" | |
49 | #include "heartbeat.h" | |
50 | #include "inode.h" | |
51 | #include "journal.h" | |
52 | #include "localalloc.h" | |
53 | #include "namei.h" | |
54 | #include "slot_map.h" | |
55 | #include "super.h" | |
56 | #include "sysfile.h" | |
57 | #include "uptodate.h" | |
cf1d6c76 | 58 | #include "xattr.h" |
9e33d69f | 59 | #include "quota.h" |
374a263e | 60 | #include "refcounttree.h" |
b89c5428 | 61 | #include "suballoc.h" |
ccd979bd MF |
62 | |
63 | #include "buffer_head_io.h" | |
a849d468 | 64 | #include "filecheck.h" |
ccd979bd | 65 | |
1a5c4e2a | 66 | static struct kmem_cache *ocfs2_inode_cachep; |
9e33d69f JK |
67 | struct kmem_cache *ocfs2_dquot_cachep; |
68 | struct kmem_cache *ocfs2_qf_chunk_cachep; | |
ccd979bd | 69 | |
1a5c4e2a | 70 | static struct dentry *ocfs2_debugfs_root; |
ccd979bd MF |
71 | |
72 | MODULE_AUTHOR("Oracle"); | |
73 | MODULE_LICENSE("GPL"); | |
ff8fb335 | 74 | MODULE_DESCRIPTION("OCFS2 cluster file system"); |
ccd979bd | 75 | |
c0123ade TY |
76 | struct mount_options |
77 | { | |
d147b3d6 | 78 | unsigned long commit_interval; |
c0123ade TY |
79 | unsigned long mount_opt; |
80 | unsigned int atime_quantum; | |
81 | signed short slot; | |
73c8a800 | 82 | int localalloc_opt; |
d02f00cc | 83 | unsigned int resv_level; |
83f92318 | 84 | int dir_resv_level; |
b61817e1 | 85 | char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; |
c0123ade TY |
86 | }; |
87 | ||
ccd979bd | 88 | static int ocfs2_parse_options(struct super_block *sb, char *options, |
c0123ade | 89 | struct mount_options *mopt, |
baf4661a | 90 | int is_remount); |
5297aad8 JK |
91 | static int ocfs2_check_set_options(struct super_block *sb, |
92 | struct mount_options *options); | |
34c80b1d | 93 | static int ocfs2_show_options(struct seq_file *s, struct dentry *root); |
ccd979bd MF |
94 | static void ocfs2_put_super(struct super_block *sb); |
95 | static int ocfs2_mount_volume(struct super_block *sb); | |
96 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data); | |
97 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); | |
98 | static int ocfs2_initialize_mem_caches(void); | |
99 | static void ocfs2_free_mem_caches(void); | |
100 | static void ocfs2_delete_osb(struct ocfs2_super *osb); | |
101 | ||
726c3342 | 102 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); |
ccd979bd MF |
103 | |
104 | static int ocfs2_sync_fs(struct super_block *sb, int wait); | |
105 | ||
106 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); | |
107 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); | |
bddb8eb3 | 108 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb); |
ccd979bd MF |
109 | static int ocfs2_check_volume(struct ocfs2_super *osb); |
110 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, | |
111 | struct buffer_head *bh, | |
73be192b JB |
112 | u32 sectsize, |
113 | struct ocfs2_blockcheck_stats *stats); | |
ccd979bd MF |
114 | static int ocfs2_initialize_super(struct super_block *sb, |
115 | struct buffer_head *bh, | |
73be192b JB |
116 | int sector_size, |
117 | struct ocfs2_blockcheck_stats *stats); | |
ccd979bd MF |
118 | static int ocfs2_get_sector(struct super_block *sb, |
119 | struct buffer_head **bh, | |
120 | int block, | |
121 | int sect_size); | |
ccd979bd | 122 | static struct inode *ocfs2_alloc_inode(struct super_block *sb); |
e91b9194 | 123 | static void ocfs2_free_inode(struct inode *inode); |
19ece546 JK |
124 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); |
125 | static int ocfs2_enable_quotas(struct ocfs2_super *osb); | |
126 | static void ocfs2_disable_quotas(struct ocfs2_super *osb); | |
ccd979bd | 127 | |
1c92ec67 JK |
128 | static struct dquot **ocfs2_get_dquots(struct inode *inode) |
129 | { | |
130 | return OCFS2_I(inode)->i_dquot; | |
131 | } | |
132 | ||
ee9b6d61 | 133 | static const struct super_operations ocfs2_sops = { |
ccd979bd MF |
134 | .statfs = ocfs2_statfs, |
135 | .alloc_inode = ocfs2_alloc_inode, | |
e91b9194 | 136 | .free_inode = ocfs2_free_inode, |
ccd979bd | 137 | .drop_inode = ocfs2_drop_inode, |
066d92dc | 138 | .evict_inode = ocfs2_evict_inode, |
ccd979bd | 139 | .sync_fs = ocfs2_sync_fs, |
ccd979bd MF |
140 | .put_super = ocfs2_put_super, |
141 | .remount_fs = ocfs2_remount, | |
d550071c | 142 | .show_options = ocfs2_show_options, |
9e33d69f JK |
143 | .quota_read = ocfs2_quota_read, |
144 | .quota_write = ocfs2_quota_write, | |
1c92ec67 | 145 | .get_dquots = ocfs2_get_dquots, |
ccd979bd MF |
146 | }; |
147 | ||
148 | enum { | |
149 | Opt_barrier, | |
150 | Opt_err_panic, | |
151 | Opt_err_ro, | |
152 | Opt_intr, | |
153 | Opt_nointr, | |
154 | Opt_hb_none, | |
155 | Opt_hb_local, | |
2c442719 | 156 | Opt_hb_global, |
ccd979bd MF |
157 | Opt_data_ordered, |
158 | Opt_data_writeback, | |
7f1a37e3 | 159 | Opt_atime_quantum, |
baf4661a | 160 | Opt_slot, |
d147b3d6 | 161 | Opt_commit, |
2fbe8d1e | 162 | Opt_localalloc, |
53fc622b | 163 | Opt_localflocks, |
b61817e1 | 164 | Opt_stack, |
cf1d6c76 TY |
165 | Opt_user_xattr, |
166 | Opt_nouser_xattr, | |
12462f1d | 167 | Opt_inode64, |
a68979b8 TY |
168 | Opt_acl, |
169 | Opt_noacl, | |
19ece546 JK |
170 | Opt_usrquota, |
171 | Opt_grpquota, | |
7bdb0d18 TY |
172 | Opt_coherency_buffered, |
173 | Opt_coherency_full, | |
d02f00cc | 174 | Opt_resv_level, |
83f92318 | 175 | Opt_dir_resv_level, |
1dfeb768 | 176 | Opt_journal_async_commit, |
7d0fb914 | 177 | Opt_err_cont, |
ccd979bd MF |
178 | Opt_err, |
179 | }; | |
180 | ||
a447c093 | 181 | static const match_table_t tokens = { |
ccd979bd MF |
182 | {Opt_barrier, "barrier=%u"}, |
183 | {Opt_err_panic, "errors=panic"}, | |
184 | {Opt_err_ro, "errors=remount-ro"}, | |
185 | {Opt_intr, "intr"}, | |
186 | {Opt_nointr, "nointr"}, | |
187 | {Opt_hb_none, OCFS2_HB_NONE}, | |
188 | {Opt_hb_local, OCFS2_HB_LOCAL}, | |
2c442719 | 189 | {Opt_hb_global, OCFS2_HB_GLOBAL}, |
ccd979bd MF |
190 | {Opt_data_ordered, "data=ordered"}, |
191 | {Opt_data_writeback, "data=writeback"}, | |
7f1a37e3 | 192 | {Opt_atime_quantum, "atime_quantum=%u"}, |
baf4661a | 193 | {Opt_slot, "preferred_slot=%u"}, |
d147b3d6 | 194 | {Opt_commit, "commit=%u"}, |
2fbe8d1e | 195 | {Opt_localalloc, "localalloc=%d"}, |
53fc622b | 196 | {Opt_localflocks, "localflocks"}, |
b61817e1 | 197 | {Opt_stack, "cluster_stack=%s"}, |
cf1d6c76 TY |
198 | {Opt_user_xattr, "user_xattr"}, |
199 | {Opt_nouser_xattr, "nouser_xattr"}, | |
12462f1d | 200 | {Opt_inode64, "inode64"}, |
a68979b8 TY |
201 | {Opt_acl, "acl"}, |
202 | {Opt_noacl, "noacl"}, | |
19ece546 JK |
203 | {Opt_usrquota, "usrquota"}, |
204 | {Opt_grpquota, "grpquota"}, | |
7bdb0d18 TY |
205 | {Opt_coherency_buffered, "coherency=buffered"}, |
206 | {Opt_coherency_full, "coherency=full"}, | |
d02f00cc | 207 | {Opt_resv_level, "resv_level=%u"}, |
83f92318 | 208 | {Opt_dir_resv_level, "dir_resv_level=%u"}, |
1dfeb768 | 209 | {Opt_journal_async_commit, "journal_async_commit"}, |
7d0fb914 | 210 | {Opt_err_cont, "errors=continue"}, |
ccd979bd MF |
211 | {Opt_err, NULL} |
212 | }; | |
213 | ||
50397507 SM |
214 | #ifdef CONFIG_DEBUG_FS |
215 | static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) | |
216 | { | |
50397507 SM |
217 | struct ocfs2_cluster_connection *cconn = osb->cconn; |
218 | struct ocfs2_recovery_map *rm = osb->recovery_map; | |
df152c24 SM |
219 | struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; |
220 | int i, out = 0; | |
bfd97a03 | 221 | unsigned long flags; |
50397507 SM |
222 | |
223 | out += snprintf(buf + out, len - out, | |
224 | "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", | |
225 | "Device", osb->dev_str, osb->uuid_str, | |
226 | osb->fs_generation, osb->vol_label); | |
227 | ||
228 | out += snprintf(buf + out, len - out, | |
229 | "%10s => State: %d Flags: 0x%lX\n", "Volume", | |
230 | atomic_read(&osb->vol_state), osb->osb_flags); | |
231 | ||
232 | out += snprintf(buf + out, len - out, | |
233 | "%10s => Block: %lu Cluster: %d\n", "Sizes", | |
234 | osb->sb->s_blocksize, osb->s_clustersize); | |
235 | ||
236 | out += snprintf(buf + out, len - out, | |
237 | "%10s => Compat: 0x%X Incompat: 0x%X " | |
238 | "ROcompat: 0x%X\n", | |
239 | "Features", osb->s_feature_compat, | |
240 | osb->s_feature_incompat, osb->s_feature_ro_compat); | |
241 | ||
242 | out += snprintf(buf + out, len - out, | |
243 | "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", | |
244 | osb->s_mount_opt, osb->s_atime_quantum); | |
245 | ||
c3d38840 SM |
246 | if (cconn) { |
247 | out += snprintf(buf + out, len - out, | |
248 | "%10s => Stack: %s Name: %*s " | |
249 | "Version: %d.%d\n", "Cluster", | |
250 | (*osb->osb_cluster_stack == '\0' ? | |
251 | "o2cb" : osb->osb_cluster_stack), | |
252 | cconn->cc_namelen, cconn->cc_name, | |
253 | cconn->cc_version.pv_major, | |
254 | cconn->cc_version.pv_minor); | |
255 | } | |
50397507 | 256 | |
bfd97a03 | 257 | spin_lock_irqsave(&osb->dc_task_lock, flags); |
50397507 SM |
258 | out += snprintf(buf + out, len - out, |
259 | "%10s => Pid: %d Count: %lu WakeSeq: %lu " | |
260 | "WorkSeq: %lu\n", "DownCnvt", | |
c3d38840 SM |
261 | (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), |
262 | osb->blocked_lock_count, osb->dc_wake_sequence, | |
263 | osb->dc_work_sequence); | |
bfd97a03 | 264 | spin_unlock_irqrestore(&osb->dc_task_lock, flags); |
50397507 SM |
265 | |
266 | spin_lock(&osb->osb_lock); | |
267 | out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", | |
268 | "Recovery", | |
269 | (osb->recovery_thread_task ? | |
270 | task_pid_nr(osb->recovery_thread_task) : -1)); | |
271 | if (rm->rm_used == 0) | |
272 | out += snprintf(buf + out, len - out, " None\n"); | |
273 | else { | |
274 | for (i = 0; i < rm->rm_used; i++) | |
275 | out += snprintf(buf + out, len - out, " %d", | |
276 | rm->rm_entries[i]); | |
277 | out += snprintf(buf + out, len - out, "\n"); | |
278 | } | |
279 | spin_unlock(&osb->osb_lock); | |
280 | ||
281 | out += snprintf(buf + out, len - out, | |
8fa9d17f | 282 | "%10s => Pid: %d Interval: %lu\n", "Commit", |
c3d38840 | 283 | (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), |
8fa9d17f | 284 | osb->osb_commit_interval); |
50397507 SM |
285 | |
286 | out += snprintf(buf + out, len - out, | |
c3d38840 | 287 | "%10s => State: %d TxnId: %lu NumTxns: %d\n", |
50397507 | 288 | "Journal", osb->journal->j_state, |
c3d38840 SM |
289 | osb->journal->j_trans_id, |
290 | atomic_read(&osb->journal->j_num_trans)); | |
50397507 SM |
291 | |
292 | out += snprintf(buf + out, len - out, | |
293 | "%10s => GlobalAllocs: %d LocalAllocs: %d " | |
294 | "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", | |
295 | "Stats", | |
296 | atomic_read(&osb->alloc_stats.bitmap_data), | |
297 | atomic_read(&osb->alloc_stats.local_data), | |
298 | atomic_read(&osb->alloc_stats.bg_allocs), | |
299 | atomic_read(&osb->alloc_stats.moves), | |
300 | atomic_read(&osb->alloc_stats.bg_extends)); | |
301 | ||
302 | out += snprintf(buf + out, len - out, | |
303 | "%10s => State: %u Descriptor: %llu Size: %u bits " | |
304 | "Default: %u bits\n", | |
305 | "LocalAlloc", osb->local_alloc_state, | |
306 | (unsigned long long)osb->la_last_gd, | |
307 | osb->local_alloc_bits, osb->local_alloc_default_bits); | |
308 | ||
309 | spin_lock(&osb->osb_lock); | |
310 | out += snprintf(buf + out, len - out, | |
b89c5428 TY |
311 | "%10s => InodeSlot: %d StolenInodes: %d, " |
312 | "MetaSlot: %d StolenMeta: %d\n", "Steal", | |
50397507 | 313 | osb->s_inode_steal_slot, |
b89c5428 TY |
314 | atomic_read(&osb->s_num_inodes_stolen), |
315 | osb->s_meta_steal_slot, | |
316 | atomic_read(&osb->s_num_meta_stolen)); | |
50397507 SM |
317 | spin_unlock(&osb->osb_lock); |
318 | ||
df152c24 SM |
319 | out += snprintf(buf + out, len - out, "OrphanScan => "); |
320 | out += snprintf(buf + out, len - out, "Local: %u Global: %u ", | |
321 | os->os_count, os->os_seqno); | |
322 | out += snprintf(buf + out, len - out, " Last Scan: "); | |
323 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) | |
324 | out += snprintf(buf + out, len - out, "Disabled\n"); | |
325 | else | |
326 | out += snprintf(buf + out, len - out, "%lu seconds ago\n", | |
395627b0 | 327 | (unsigned long)(ktime_get_seconds() - os->os_scantime)); |
df152c24 | 328 | |
50397507 SM |
329 | out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", |
330 | "Slots", "Num", "RecoGen"); | |
50397507 SM |
331 | for (i = 0; i < osb->max_slots; ++i) { |
332 | out += snprintf(buf + out, len - out, | |
333 | "%10s %c %3d %10d\n", | |
334 | " ", | |
335 | (i == osb->slot_num ? '*' : ' '), | |
336 | i, osb->slot_recovery_generations[i]); | |
337 | } | |
338 | ||
339 | return out; | |
340 | } | |
341 | ||
342 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) | |
343 | { | |
344 | struct ocfs2_super *osb = inode->i_private; | |
345 | char *buf = NULL; | |
346 | ||
347 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
348 | if (!buf) | |
349 | goto bail; | |
350 | ||
351 | i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); | |
352 | ||
353 | file->private_data = buf; | |
354 | ||
355 | return 0; | |
356 | bail: | |
357 | return -ENOMEM; | |
358 | } | |
359 | ||
360 | static int ocfs2_debug_release(struct inode *inode, struct file *file) | |
361 | { | |
362 | kfree(file->private_data); | |
363 | return 0; | |
364 | } | |
365 | ||
366 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, | |
367 | size_t nbytes, loff_t *ppos) | |
368 | { | |
369 | return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, | |
370 | i_size_read(file->f_mapping->host)); | |
371 | } | |
372 | #else | |
373 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) | |
374 | { | |
375 | return 0; | |
376 | } | |
377 | static int ocfs2_debug_release(struct inode *inode, struct file *file) | |
378 | { | |
379 | return 0; | |
380 | } | |
381 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, | |
382 | size_t nbytes, loff_t *ppos) | |
383 | { | |
384 | return 0; | |
385 | } | |
386 | #endif /* CONFIG_DEBUG_FS */ | |
387 | ||
828c0950 | 388 | static const struct file_operations ocfs2_osb_debug_fops = { |
50397507 SM |
389 | .open = ocfs2_osb_debug_open, |
390 | .release = ocfs2_debug_release, | |
391 | .read = ocfs2_debug_read, | |
392 | .llseek = generic_file_llseek, | |
393 | }; | |
394 | ||
ccd979bd MF |
395 | static int ocfs2_sync_fs(struct super_block *sb, int wait) |
396 | { | |
bddb8eb3 | 397 | int status; |
ccd979bd MF |
398 | tid_t target; |
399 | struct ocfs2_super *osb = OCFS2_SB(sb); | |
400 | ||
ccd979bd MF |
401 | if (ocfs2_is_hard_readonly(osb)) |
402 | return -EROFS; | |
403 | ||
404 | if (wait) { | |
405 | status = ocfs2_flush_truncate_log(osb); | |
406 | if (status < 0) | |
407 | mlog_errno(status); | |
408 | } else { | |
409 | ocfs2_schedule_truncate_log_flush(osb, 0); | |
410 | } | |
411 | ||
1119d3c0 | 412 | if (jbd2_journal_start_commit(osb->journal->j_journal, |
2b4e30fb | 413 | &target)) { |
ccd979bd | 414 | if (wait) |
1119d3c0 | 415 | jbd2_log_wait_commit(osb->journal->j_journal, |
2b4e30fb | 416 | target); |
ccd979bd MF |
417 | } |
418 | return 0; | |
419 | } | |
420 | ||
1a224ad1 JK |
421 | static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) |
422 | { | |
423 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) | |
424 | && (ino == USER_QUOTA_SYSTEM_INODE | |
425 | || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) | |
426 | return 0; | |
427 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) | |
428 | && (ino == GROUP_QUOTA_SYSTEM_INODE | |
429 | || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) | |
430 | return 0; | |
431 | return 1; | |
432 | } | |
433 | ||
ccd979bd MF |
434 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) |
435 | { | |
436 | struct inode *new = NULL; | |
437 | int status = 0; | |
438 | int i; | |
439 | ||
5fa0613e | 440 | new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); |
ccd979bd MF |
441 | if (IS_ERR(new)) { |
442 | status = PTR_ERR(new); | |
443 | mlog_errno(status); | |
444 | goto bail; | |
445 | } | |
446 | osb->root_inode = new; | |
447 | ||
5fa0613e | 448 | new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); |
ccd979bd MF |
449 | if (IS_ERR(new)) { |
450 | status = PTR_ERR(new); | |
451 | mlog_errno(status); | |
452 | goto bail; | |
453 | } | |
454 | osb->sys_root_inode = new; | |
455 | ||
456 | for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; | |
457 | i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { | |
1a224ad1 JK |
458 | if (!ocfs2_need_system_inode(osb, i)) |
459 | continue; | |
ccd979bd MF |
460 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
461 | if (!new) { | |
462 | ocfs2_release_system_inodes(osb); | |
025bcbde | 463 | status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; |
ccd979bd | 464 | mlog_errno(status); |
ccd979bd MF |
465 | mlog(ML_ERROR, "Unable to load system inode %d, " |
466 | "possibly corrupt fs?", i); | |
467 | goto bail; | |
468 | } | |
469 | // the array now has one ref, so drop this one | |
470 | iput(new); | |
471 | } | |
472 | ||
473 | bail: | |
c1e8d35e TM |
474 | if (status) |
475 | mlog_errno(status); | |
ccd979bd MF |
476 | return status; |
477 | } | |
478 | ||
479 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) | |
480 | { | |
481 | struct inode *new = NULL; | |
482 | int status = 0; | |
483 | int i; | |
484 | ||
ccd979bd MF |
485 | for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; |
486 | i < NUM_SYSTEM_INODES; | |
487 | i++) { | |
1a224ad1 JK |
488 | if (!ocfs2_need_system_inode(osb, i)) |
489 | continue; | |
ccd979bd MF |
490 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
491 | if (!new) { | |
492 | ocfs2_release_system_inodes(osb); | |
025bcbde | 493 | status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; |
ccd979bd MF |
494 | mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", |
495 | status, i, osb->slot_num); | |
496 | goto bail; | |
497 | } | |
498 | /* the array now has one ref, so drop this one */ | |
499 | iput(new); | |
500 | } | |
501 | ||
502 | bail: | |
c1e8d35e TM |
503 | if (status) |
504 | mlog_errno(status); | |
ccd979bd MF |
505 | return status; |
506 | } | |
507 | ||
bddb8eb3 | 508 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb) |
ccd979bd | 509 | { |
bddb8eb3 | 510 | int i; |
ccd979bd MF |
511 | struct inode *inode; |
512 | ||
b4d693fc TM |
513 | for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { |
514 | inode = osb->global_system_inodes[i]; | |
ccd979bd MF |
515 | if (inode) { |
516 | iput(inode); | |
b4d693fc | 517 | osb->global_system_inodes[i] = NULL; |
ccd979bd MF |
518 | } |
519 | } | |
520 | ||
521 | inode = osb->sys_root_inode; | |
522 | if (inode) { | |
523 | iput(inode); | |
524 | osb->sys_root_inode = NULL; | |
525 | } | |
526 | ||
527 | inode = osb->root_inode; | |
528 | if (inode) { | |
529 | iput(inode); | |
530 | osb->root_inode = NULL; | |
531 | } | |
532 | ||
b4d693fc | 533 | if (!osb->local_system_inodes) |
c1e8d35e | 534 | return; |
b4d693fc TM |
535 | |
536 | for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { | |
537 | if (osb->local_system_inodes[i]) { | |
538 | iput(osb->local_system_inodes[i]); | |
539 | osb->local_system_inodes[i] = NULL; | |
540 | } | |
541 | } | |
542 | ||
543 | kfree(osb->local_system_inodes); | |
544 | osb->local_system_inodes = NULL; | |
ccd979bd MF |
545 | } |
546 | ||
547 | /* We're allocating fs objects, use GFP_NOFS */ | |
548 | static struct inode *ocfs2_alloc_inode(struct super_block *sb) | |
549 | { | |
550 | struct ocfs2_inode_info *oi; | |
551 | ||
e6b4f8da | 552 | oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); |
ccd979bd MF |
553 | if (!oi) |
554 | return NULL; | |
555 | ||
2931cdcb DW |
556 | oi->i_sync_tid = 0; |
557 | oi->i_datasync_tid = 0; | |
1c92ec67 | 558 | memset(&oi->i_dquot, 0, sizeof(oi->i_dquot)); |
2931cdcb | 559 | |
2b4e30fb | 560 | jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); |
ccd979bd MF |
561 | return &oi->vfs_inode; |
562 | } | |
563 | ||
e91b9194 | 564 | static void ocfs2_free_inode(struct inode *inode) |
ccd979bd MF |
565 | { |
566 | kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); | |
567 | } | |
568 | ||
5a254031 MF |
569 | static unsigned long long ocfs2_max_file_offset(unsigned int bbits, |
570 | unsigned int cbits) | |
ccd979bd | 571 | { |
5a254031 MF |
572 | unsigned int bytes = 1 << cbits; |
573 | unsigned int trim = bytes; | |
574 | unsigned int bitshift = 32; | |
575 | ||
576 | /* | |
577 | * i_size and all block offsets in ocfs2 are always 64 bits | |
578 | * wide. i_clusters is 32 bits, in cluster-sized units. So on | |
579 | * 64 bit platforms, cluster size will be the limiting factor. | |
ccd979bd MF |
580 | */ |
581 | ||
582 | #if BITS_PER_LONG == 32 | |
2ecd05ae | 583 | BUILD_BUG_ON(sizeof(sector_t) != 8); |
5a254031 MF |
584 | /* |
585 | * We might be limited by page cache size. | |
586 | */ | |
09cbfeaf KS |
587 | if (bytes > PAGE_SIZE) { |
588 | bytes = PAGE_SIZE; | |
5a254031 MF |
589 | trim = 1; |
590 | /* | |
591 | * Shift by 31 here so that we don't get larger than | |
592 | * MAX_LFS_FILESIZE | |
593 | */ | |
594 | bitshift = 31; | |
595 | } | |
ccd979bd MF |
596 | #endif |
597 | ||
5a254031 MF |
598 | /* |
599 | * Trim by a whole cluster when we can actually approach the | |
600 | * on-disk limits. Otherwise we can overflow i_clusters when | |
601 | * an extent start is at the max offset. | |
602 | */ | |
603 | return (((unsigned long long)bytes) << bitshift) - trim; | |
ccd979bd MF |
604 | } |
605 | ||
606 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data) | |
607 | { | |
608 | int incompat_features; | |
609 | int ret = 0; | |
c0123ade | 610 | struct mount_options parsed_options; |
ccd979bd | 611 | struct ocfs2_super *osb = OCFS2_SB(sb); |
2c442719 | 612 | u32 tmp; |
ccd979bd | 613 | |
02b9984d TT |
614 | sync_filesystem(sb); |
615 | ||
5297aad8 JK |
616 | if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || |
617 | !ocfs2_check_set_options(sb, &parsed_options)) { | |
ccd979bd MF |
618 | ret = -EINVAL; |
619 | goto out; | |
620 | } | |
621 | ||
2c442719 SM |
622 | tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | |
623 | OCFS2_MOUNT_HB_NONE; | |
624 | if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { | |
ccd979bd MF |
625 | ret = -EINVAL; |
626 | mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); | |
627 | goto out; | |
628 | } | |
629 | ||
630 | if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != | |
c0123ade | 631 | (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { |
ccd979bd MF |
632 | ret = -EINVAL; |
633 | mlog(ML_ERROR, "Cannot change data mode on remount\n"); | |
634 | goto out; | |
635 | } | |
636 | ||
12462f1d JB |
637 | /* Probably don't want this on remount; it might |
638 | * mess with other nodes */ | |
639 | if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && | |
640 | (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { | |
641 | ret = -EINVAL; | |
642 | mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); | |
643 | goto out; | |
644 | } | |
645 | ||
ccd979bd | 646 | /* We're going to/from readonly mode. */ |
1751e8a6 | 647 | if ((bool)(*flags & SB_RDONLY) != sb_rdonly(sb)) { |
19ece546 | 648 | /* Disable quota accounting before remounting RO */ |
1751e8a6 | 649 | if (*flags & SB_RDONLY) { |
19ece546 JK |
650 | ret = ocfs2_susp_quotas(osb, 0); |
651 | if (ret < 0) | |
652 | goto out; | |
653 | } | |
ccd979bd MF |
654 | /* Lock here so the check of HARD_RO and the potential |
655 | * setting of SOFT_RO is atomic. */ | |
656 | spin_lock(&osb->osb_lock); | |
657 | if (osb->osb_flags & OCFS2_OSB_HARD_RO) { | |
658 | mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); | |
659 | ret = -EROFS; | |
660 | goto unlock_osb; | |
661 | } | |
662 | ||
1751e8a6 LT |
663 | if (*flags & SB_RDONLY) { |
664 | sb->s_flags |= SB_RDONLY; | |
ccd979bd MF |
665 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; |
666 | } else { | |
ccd979bd MF |
667 | if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { |
668 | mlog(ML_ERROR, "Cannot remount RDWR " | |
669 | "filesystem due to previous errors.\n"); | |
670 | ret = -EROFS; | |
671 | goto unlock_osb; | |
672 | } | |
673 | incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); | |
674 | if (incompat_features) { | |
675 | mlog(ML_ERROR, "Cannot remount RDWR because " | |
676 | "of unsupported optional features " | |
677 | "(%x).\n", incompat_features); | |
678 | ret = -EINVAL; | |
679 | goto unlock_osb; | |
680 | } | |
1751e8a6 | 681 | sb->s_flags &= ~SB_RDONLY; |
ccd979bd MF |
682 | osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; |
683 | } | |
32a42d39 | 684 | trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); |
ccd979bd MF |
685 | unlock_osb: |
686 | spin_unlock(&osb->osb_lock); | |
19ece546 | 687 | /* Enable quota accounting after remounting RW */ |
1751e8a6 | 688 | if (!ret && !(*flags & SB_RDONLY)) { |
19ece546 JK |
689 | if (sb_any_quota_suspended(sb)) |
690 | ret = ocfs2_susp_quotas(osb, 1); | |
691 | else | |
692 | ret = ocfs2_enable_quotas(osb); | |
693 | if (ret < 0) { | |
694 | /* Return back changes... */ | |
695 | spin_lock(&osb->osb_lock); | |
1751e8a6 | 696 | sb->s_flags |= SB_RDONLY; |
19ece546 JK |
697 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; |
698 | spin_unlock(&osb->osb_lock); | |
699 | goto out; | |
700 | } | |
701 | } | |
ccd979bd MF |
702 | } |
703 | ||
704 | if (!ret) { | |
ccd979bd MF |
705 | /* Only save off the new mount options in case of a successful |
706 | * remount. */ | |
c0123ade TY |
707 | osb->s_mount_opt = parsed_options.mount_opt; |
708 | osb->s_atime_quantum = parsed_options.atime_quantum; | |
709 | osb->preferred_slot = parsed_options.slot; | |
d147b3d6 MF |
710 | if (parsed_options.commit_interval) |
711 | osb->osb_commit_interval = parsed_options.commit_interval; | |
e001e796 MF |
712 | |
713 | if (!ocfs2_is_hard_readonly(osb)) | |
714 | ocfs2_set_journal_params(osb); | |
57b09bb5 | 715 | |
1751e8a6 | 716 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
57b09bb5 | 717 | ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? |
1751e8a6 | 718 | SB_POSIXACL : 0); |
ccd979bd MF |
719 | } |
720 | out: | |
721 | return ret; | |
722 | } | |
723 | ||
724 | static int ocfs2_sb_probe(struct super_block *sb, | |
725 | struct buffer_head **bh, | |
73be192b JB |
726 | int *sector_size, |
727 | struct ocfs2_blockcheck_stats *stats) | |
ccd979bd | 728 | { |
bddb8eb3 | 729 | int status, tmpstat; |
ccd979bd MF |
730 | struct ocfs1_vol_disk_hdr *hdr; |
731 | struct ocfs2_dinode *di; | |
732 | int blksize; | |
733 | ||
734 | *bh = NULL; | |
735 | ||
736 | /* may be > 512 */ | |
e1defc4f | 737 | *sector_size = bdev_logical_block_size(sb->s_bdev); |
ccd979bd MF |
738 | if (*sector_size > OCFS2_MAX_BLOCKSIZE) { |
739 | mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", | |
740 | *sector_size, OCFS2_MAX_BLOCKSIZE); | |
741 | status = -EINVAL; | |
742 | goto bail; | |
743 | } | |
744 | ||
745 | /* Can this really happen? */ | |
746 | if (*sector_size < OCFS2_MIN_BLOCKSIZE) | |
747 | *sector_size = OCFS2_MIN_BLOCKSIZE; | |
748 | ||
749 | /* check block zero for old format */ | |
750 | status = ocfs2_get_sector(sb, bh, 0, *sector_size); | |
751 | if (status < 0) { | |
752 | mlog_errno(status); | |
753 | goto bail; | |
754 | } | |
755 | hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; | |
756 | if (hdr->major_version == OCFS1_MAJOR_VERSION) { | |
757 | mlog(ML_ERROR, "incompatible version: %u.%u\n", | |
758 | hdr->major_version, hdr->minor_version); | |
759 | status = -EINVAL; | |
760 | } | |
761 | if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, | |
762 | strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { | |
763 | mlog(ML_ERROR, "incompatible volume signature: %8s\n", | |
764 | hdr->signature); | |
765 | status = -EINVAL; | |
766 | } | |
767 | brelse(*bh); | |
768 | *bh = NULL; | |
769 | if (status < 0) { | |
770 | mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " | |
771 | "upgraded before mounting with ocfs v2\n"); | |
772 | goto bail; | |
773 | } | |
774 | ||
775 | /* | |
776 | * Now check at magic offset for 512, 1024, 2048, 4096 | |
777 | * blocksizes. 4096 is the maximum blocksize because it is | |
778 | * the minimum clustersize. | |
779 | */ | |
780 | status = -EINVAL; | |
781 | for (blksize = *sector_size; | |
782 | blksize <= OCFS2_MAX_BLOCKSIZE; | |
783 | blksize <<= 1) { | |
784 | tmpstat = ocfs2_get_sector(sb, bh, | |
785 | OCFS2_SUPER_BLOCK_BLKNO, | |
786 | blksize); | |
787 | if (tmpstat < 0) { | |
788 | status = tmpstat; | |
789 | mlog_errno(status); | |
fb5cbe9e | 790 | break; |
ccd979bd MF |
791 | } |
792 | di = (struct ocfs2_dinode *) (*bh)->b_data; | |
73be192b | 793 | memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); |
1c1d9793 | 794 | spin_lock_init(&stats->b_lock); |
fb5cbe9e JB |
795 | tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); |
796 | if (tmpstat < 0) { | |
797 | brelse(*bh); | |
798 | *bh = NULL; | |
799 | } | |
800 | if (tmpstat != -EAGAIN) { | |
801 | status = tmpstat; | |
ccd979bd | 802 | break; |
fb5cbe9e | 803 | } |
ccd979bd MF |
804 | } |
805 | ||
806 | bail: | |
807 | return status; | |
808 | } | |
809 | ||
c271c5c2 SM |
810 | static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) |
811 | { | |
2c442719 SM |
812 | u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; |
813 | ||
814 | if (osb->s_mount_opt & hb_enabled) { | |
815 | if (ocfs2_mount_local(osb)) { | |
c271c5c2 SM |
816 | mlog(ML_ERROR, "Cannot heartbeat on a locally " |
817 | "mounted device.\n"); | |
818 | return -EINVAL; | |
819 | } | |
2c442719 | 820 | if (ocfs2_userspace_stack(osb)) { |
b61817e1 JB |
821 | mlog(ML_ERROR, "Userspace stack expected, but " |
822 | "o2cb heartbeat arguments passed to mount\n"); | |
823 | return -EINVAL; | |
824 | } | |
2c442719 SM |
825 | if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && |
826 | !ocfs2_cluster_o2cb_global_heartbeat(osb)) || | |
827 | ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && | |
828 | ocfs2_cluster_o2cb_global_heartbeat(osb))) { | |
829 | mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); | |
830 | return -EINVAL; | |
831 | } | |
b61817e1 JB |
832 | } |
833 | ||
2c442719 | 834 | if (!(osb->s_mount_opt & hb_enabled)) { |
b61817e1 JB |
835 | if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && |
836 | !ocfs2_userspace_stack(osb)) { | |
c271c5c2 SM |
837 | mlog(ML_ERROR, "Heartbeat has to be started to mount " |
838 | "a read-write clustered device.\n"); | |
839 | return -EINVAL; | |
840 | } | |
841 | } | |
842 | ||
843 | return 0; | |
844 | } | |
845 | ||
b61817e1 JB |
846 | /* |
847 | * If we're using a userspace stack, mount should have passed | |
848 | * a name that matches the disk. If not, mount should not | |
849 | * have passed a stack. | |
850 | */ | |
851 | static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, | |
852 | struct mount_options *mopt) | |
853 | { | |
854 | if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { | |
855 | mlog(ML_ERROR, | |
856 | "cluster stack passed to mount, but this filesystem " | |
857 | "does not support it\n"); | |
858 | return -EINVAL; | |
859 | } | |
860 | ||
861 | if (ocfs2_userspace_stack(osb) && | |
862 | strncmp(osb->osb_cluster_stack, mopt->cluster_stack, | |
863 | OCFS2_STACK_LABEL_LEN)) { | |
864 | mlog(ML_ERROR, | |
865 | "cluster stack passed to mount (\"%s\") does not " | |
866 | "match the filesystem (\"%s\")\n", | |
867 | mopt->cluster_stack, | |
868 | osb->osb_cluster_stack); | |
869 | return -EINVAL; | |
870 | } | |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
19ece546 JK |
875 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) |
876 | { | |
877 | int type; | |
878 | struct super_block *sb = osb->sb; | |
52362810 JK |
879 | unsigned int feature[OCFS2_MAXQUOTAS] = { |
880 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA, | |
881 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; | |
19ece546 JK |
882 | int status = 0; |
883 | ||
52362810 | 884 | for (type = 0; type < OCFS2_MAXQUOTAS; type++) { |
19ece546 JK |
885 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
886 | continue; | |
887 | if (unsuspend) | |
0f0dd62f | 888 | status = dquot_resume(sb, type); |
eea7feb0 JK |
889 | else { |
890 | struct ocfs2_mem_dqinfo *oinfo; | |
891 | ||
892 | /* Cancel periodic syncing before suspending */ | |
893 | oinfo = sb_dqinfo(sb, type)->dqi_priv; | |
894 | cancel_delayed_work_sync(&oinfo->dqi_sync_work); | |
0f0dd62f | 895 | status = dquot_suspend(sb, type); |
eea7feb0 | 896 | } |
19ece546 JK |
897 | if (status < 0) |
898 | break; | |
899 | } | |
900 | if (status < 0) | |
901 | mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " | |
902 | "remount (error = %d).\n", status); | |
903 | return status; | |
904 | } | |
905 | ||
906 | static int ocfs2_enable_quotas(struct ocfs2_super *osb) | |
907 | { | |
52362810 | 908 | struct inode *inode[OCFS2_MAXQUOTAS] = { NULL, NULL }; |
19ece546 | 909 | struct super_block *sb = osb->sb; |
52362810 JK |
910 | unsigned int feature[OCFS2_MAXQUOTAS] = { |
911 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA, | |
912 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; | |
913 | unsigned int ino[OCFS2_MAXQUOTAS] = { | |
914 | LOCAL_USER_QUOTA_SYSTEM_INODE, | |
19ece546 JK |
915 | LOCAL_GROUP_QUOTA_SYSTEM_INODE }; |
916 | int status; | |
917 | int type; | |
918 | ||
919 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; | |
52362810 | 920 | for (type = 0; type < OCFS2_MAXQUOTAS; type++) { |
19ece546 JK |
921 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
922 | continue; | |
923 | inode[type] = ocfs2_get_system_file_inode(osb, ino[type], | |
924 | osb->slot_num); | |
925 | if (!inode[type]) { | |
926 | status = -ENOENT; | |
927 | goto out_quota_off; | |
928 | } | |
7212b95e JK |
929 | status = dquot_load_quota_inode(inode[type], type, QFMT_OCFS2, |
930 | DQUOT_USAGE_ENABLED); | |
19ece546 JK |
931 | if (status < 0) |
932 | goto out_quota_off; | |
933 | } | |
934 | ||
52362810 | 935 | for (type = 0; type < OCFS2_MAXQUOTAS; type++) |
19ece546 JK |
936 | iput(inode[type]); |
937 | return 0; | |
938 | out_quota_off: | |
939 | ocfs2_disable_quotas(osb); | |
52362810 | 940 | for (type = 0; type < OCFS2_MAXQUOTAS; type++) |
19ece546 JK |
941 | iput(inode[type]); |
942 | mlog_errno(status); | |
943 | return status; | |
944 | } | |
945 | ||
946 | static void ocfs2_disable_quotas(struct ocfs2_super *osb) | |
947 | { | |
948 | int type; | |
949 | struct inode *inode; | |
950 | struct super_block *sb = osb->sb; | |
c06bcbfa | 951 | struct ocfs2_mem_dqinfo *oinfo; |
19ece546 JK |
952 | |
953 | /* We mostly ignore errors in this function because there's not much | |
954 | * we can do when we see them */ | |
52362810 | 955 | for (type = 0; type < OCFS2_MAXQUOTAS; type++) { |
19ece546 JK |
956 | if (!sb_has_quota_loaded(sb, type)) |
957 | continue; | |
c06bcbfa JK |
958 | oinfo = sb_dqinfo(sb, type)->dqi_priv; |
959 | cancel_delayed_work_sync(&oinfo->dqi_sync_work); | |
19ece546 JK |
960 | inode = igrab(sb->s_dquot.files[type]); |
961 | /* Turn off quotas. This will remove all dquot structures from | |
962 | * memory and so they will be automatically synced to global | |
963 | * quota files */ | |
0f0dd62f CH |
964 | dquot_disable(sb, type, DQUOT_USAGE_ENABLED | |
965 | DQUOT_LIMITS_ENABLED); | |
19ece546 JK |
966 | if (!inode) |
967 | continue; | |
968 | iput(inode); | |
969 | } | |
970 | } | |
971 | ||
ccd979bd MF |
972 | static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) |
973 | { | |
974 | struct dentry *root; | |
975 | int status, sector_size; | |
c0123ade | 976 | struct mount_options parsed_options; |
ccd979bd MF |
977 | struct inode *inode = NULL; |
978 | struct ocfs2_super *osb = NULL; | |
979 | struct buffer_head *bh = NULL; | |
49fa8140 | 980 | char nodestr[12]; |
73be192b | 981 | struct ocfs2_blockcheck_stats stats; |
ccd979bd | 982 | |
32a42d39 | 983 | trace_ocfs2_fill_super(sb, data, silent); |
ccd979bd | 984 | |
c0123ade | 985 | if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { |
ccd979bd MF |
986 | status = -EINVAL; |
987 | goto read_super_error; | |
988 | } | |
989 | ||
990 | /* probe for superblock */ | |
73be192b | 991 | status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); |
ccd979bd MF |
992 | if (status < 0) { |
993 | mlog(ML_ERROR, "superblock probe failed!\n"); | |
994 | goto read_super_error; | |
995 | } | |
996 | ||
73be192b | 997 | status = ocfs2_initialize_super(sb, bh, sector_size, &stats); |
ccd979bd MF |
998 | osb = OCFS2_SB(sb); |
999 | if (status < 0) { | |
1000 | mlog_errno(status); | |
1001 | goto read_super_error; | |
1002 | } | |
1003 | brelse(bh); | |
1004 | bh = NULL; | |
a68979b8 | 1005 | |
5297aad8 JK |
1006 | if (!ocfs2_check_set_options(sb, &parsed_options)) { |
1007 | status = -EINVAL; | |
1008 | goto read_super_error; | |
1009 | } | |
c0123ade TY |
1010 | osb->s_mount_opt = parsed_options.mount_opt; |
1011 | osb->s_atime_quantum = parsed_options.atime_quantum; | |
1012 | osb->preferred_slot = parsed_options.slot; | |
d147b3d6 | 1013 | osb->osb_commit_interval = parsed_options.commit_interval; |
73c8a800 MF |
1014 | |
1015 | ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); | |
d02f00cc | 1016 | osb->osb_resv_level = parsed_options.resv_level; |
83f92318 MF |
1017 | osb->osb_dir_resv_level = parsed_options.resv_level; |
1018 | if (parsed_options.dir_resv_level == -1) | |
1019 | osb->osb_dir_resv_level = parsed_options.resv_level; | |
1020 | else | |
1021 | osb->osb_dir_resv_level = parsed_options.dir_resv_level; | |
ccd979bd | 1022 | |
b61817e1 JB |
1023 | status = ocfs2_verify_userspace_stack(osb, &parsed_options); |
1024 | if (status) | |
1025 | goto read_super_error; | |
1026 | ||
ccd979bd MF |
1027 | sb->s_magic = OCFS2_SUPER_MAGIC; |
1028 | ||
1751e8a6 LT |
1029 | sb->s_flags = (sb->s_flags & ~(SB_POSIXACL | SB_NOSEC)) | |
1030 | ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? SB_POSIXACL : 0); | |
a68979b8 | 1031 | |
1751e8a6 | 1032 | /* Hard readonly mode only if: bdev_read_only, SB_RDONLY, |
ccd979bd MF |
1033 | * heartbeat=none */ |
1034 | if (bdev_read_only(sb->s_bdev)) { | |
bc98a42c | 1035 | if (!sb_rdonly(sb)) { |
ccd979bd MF |
1036 | status = -EACCES; |
1037 | mlog(ML_ERROR, "Readonly device detected but readonly " | |
1038 | "mount was not specified.\n"); | |
1039 | goto read_super_error; | |
1040 | } | |
1041 | ||
1042 | /* You should not be able to start a local heartbeat | |
1043 | * on a readonly device. */ | |
1044 | if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { | |
1045 | status = -EROFS; | |
1046 | mlog(ML_ERROR, "Local heartbeat specified on readonly " | |
1047 | "device.\n"); | |
1048 | goto read_super_error; | |
1049 | } | |
1050 | ||
1051 | status = ocfs2_check_journals_nolocks(osb); | |
1052 | if (status < 0) { | |
1053 | if (status == -EROFS) | |
1054 | mlog(ML_ERROR, "Recovery required on readonly " | |
1055 | "file system, but write access is " | |
1056 | "unavailable.\n"); | |
1057 | else | |
2bd63216 | 1058 | mlog_errno(status); |
ccd979bd MF |
1059 | goto read_super_error; |
1060 | } | |
1061 | ||
1062 | ocfs2_set_ro_flag(osb, 1); | |
1063 | ||
619c200d SM |
1064 | printk(KERN_NOTICE "ocfs2: Readonly device (%s) detected. " |
1065 | "Cluster services will not be used for this mount. " | |
1066 | "Recovery will be skipped.\n", osb->dev_str); | |
ccd979bd MF |
1067 | } |
1068 | ||
1069 | if (!ocfs2_is_hard_readonly(osb)) { | |
bc98a42c | 1070 | if (sb_rdonly(sb)) |
ccd979bd MF |
1071 | ocfs2_set_ro_flag(osb, 0); |
1072 | } | |
1073 | ||
c271c5c2 SM |
1074 | status = ocfs2_verify_heartbeat(osb); |
1075 | if (status < 0) { | |
1076 | mlog_errno(status); | |
1077 | goto read_super_error; | |
1078 | } | |
1079 | ||
ccd979bd MF |
1080 | osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, |
1081 | ocfs2_debugfs_root); | |
ccd979bd | 1082 | |
5e7a3ed9 GKH |
1083 | debugfs_create_file("fs_state", S_IFREG|S_IRUSR, osb->osb_debug_root, |
1084 | osb, &ocfs2_osb_debug_fops); | |
50397507 | 1085 | |
e581595e GKH |
1086 | if (ocfs2_meta_ecc(osb)) |
1087 | ocfs2_blockcheck_stats_debugfs_install( &osb->osb_ecc_stats, | |
1088 | osb->osb_debug_root); | |
73be192b | 1089 | |
ccd979bd | 1090 | status = ocfs2_mount_volume(sb); |
ccd979bd MF |
1091 | if (status < 0) |
1092 | goto read_super_error; | |
1093 | ||
be0d93f0 AV |
1094 | if (osb->root_inode) |
1095 | inode = igrab(osb->root_inode); | |
1096 | ||
ccd979bd MF |
1097 | if (!inode) { |
1098 | status = -EIO; | |
1099 | mlog_errno(status); | |
1100 | goto read_super_error; | |
1101 | } | |
1102 | ||
48fde701 | 1103 | root = d_make_root(inode); |
ccd979bd MF |
1104 | if (!root) { |
1105 | status = -ENOMEM; | |
1106 | mlog_errno(status); | |
1107 | goto read_super_error; | |
1108 | } | |
1109 | ||
1110 | sb->s_root = root; | |
1111 | ||
1112 | ocfs2_complete_mount_recovery(osb); | |
1113 | ||
5f483c4a GH |
1114 | osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL, |
1115 | &ocfs2_kset->kobj); | |
1116 | if (!osb->osb_dev_kset) { | |
1117 | status = -ENOMEM; | |
1118 | mlog(ML_ERROR, "Unable to create device kset %s.\n", sb->s_id); | |
1119 | goto read_super_error; | |
1120 | } | |
1121 | ||
1122 | /* Create filecheck sysfs related directories/files at | |
1123 | * /sys/fs/ocfs2/<devname>/filecheck */ | |
1124 | if (ocfs2_filecheck_create_sysfs(osb)) { | |
1125 | status = -ENOMEM; | |
1126 | mlog(ML_ERROR, "Unable to create filecheck sysfs directory at " | |
1127 | "/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id); | |
1128 | goto read_super_error; | |
1129 | } | |
1130 | ||
c271c5c2 SM |
1131 | if (ocfs2_mount_local(osb)) |
1132 | snprintf(nodestr, sizeof(nodestr), "local"); | |
1133 | else | |
19fdb624 | 1134 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
c271c5c2 SM |
1135 | |
1136 | printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " | |
781ee3e2 | 1137 | "with %s data mode.\n", |
c271c5c2 | 1138 | osb->dev_str, nodestr, osb->slot_num, |
ccd979bd MF |
1139 | osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : |
1140 | "ordered"); | |
1141 | ||
1142 | atomic_set(&osb->vol_state, VOLUME_MOUNTED); | |
1143 | wake_up(&osb->osb_mount_event); | |
1144 | ||
19ece546 JK |
1145 | /* Now we can initialize quotas because we can afford to wait |
1146 | * for cluster locks recovery now. That also means that truncation | |
1147 | * log recovery can happen but that waits for proper quota setup */ | |
bc98a42c | 1148 | if (!sb_rdonly(sb)) { |
19ece546 JK |
1149 | status = ocfs2_enable_quotas(osb); |
1150 | if (status < 0) { | |
1151 | /* We have to err-out specially here because | |
1152 | * s_root is already set */ | |
1153 | mlog_errno(status); | |
1154 | atomic_set(&osb->vol_state, VOLUME_DISABLED); | |
1155 | wake_up(&osb->osb_mount_event); | |
19ece546 JK |
1156 | return status; |
1157 | } | |
1158 | } | |
1159 | ||
1160 | ocfs2_complete_quota_recovery(osb); | |
1161 | ||
1162 | /* Now we wake up again for processes waiting for quotas */ | |
1163 | atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); | |
1164 | wake_up(&osb->osb_mount_event); | |
1165 | ||
df152c24 | 1166 | /* Start this when the mount is almost sure of being successful */ |
8b712cd5 | 1167 | ocfs2_orphan_scan_start(osb); |
df152c24 | 1168 | |
ccd979bd MF |
1169 | return status; |
1170 | ||
1171 | read_super_error: | |
a81cb88b | 1172 | brelse(bh); |
ccd979bd | 1173 | |
a52370b3 GH |
1174 | if (status) |
1175 | mlog_errno(status); | |
1176 | ||
ccd979bd MF |
1177 | if (osb) { |
1178 | atomic_set(&osb->vol_state, VOLUME_DISABLED); | |
1179 | wake_up(&osb->osb_mount_event); | |
1180 | ocfs2_dismount_volume(sb, 1); | |
1181 | } | |
1182 | ||
ccd979bd MF |
1183 | return status; |
1184 | } | |
1185 | ||
152a0836 | 1186 | static struct dentry *ocfs2_mount(struct file_system_type *fs_type, |
454e2398 DH |
1187 | int flags, |
1188 | const char *dev_name, | |
152a0836 | 1189 | void *data) |
ccd979bd | 1190 | { |
152a0836 | 1191 | return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); |
ccd979bd MF |
1192 | } |
1193 | ||
1194 | static struct file_system_type ocfs2_fs_type = { | |
1195 | .owner = THIS_MODULE, | |
1196 | .name = "ocfs2", | |
152a0836 | 1197 | .mount = ocfs2_mount, |
8ed6b237 | 1198 | .kill_sb = kill_block_super, |
1ba9da2f | 1199 | .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, |
ccd979bd MF |
1200 | .next = NULL |
1201 | }; | |
91417705 | 1202 | MODULE_ALIAS_FS("ocfs2"); |
ccd979bd | 1203 | |
5297aad8 JK |
1204 | static int ocfs2_check_set_options(struct super_block *sb, |
1205 | struct mount_options *options) | |
1206 | { | |
1207 | if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && | |
1208 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, | |
1209 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { | |
1210 | mlog(ML_ERROR, "User quotas were requested, but this " | |
1211 | "filesystem does not have the feature enabled.\n"); | |
1212 | return 0; | |
1213 | } | |
1214 | if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && | |
1215 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, | |
1216 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { | |
1217 | mlog(ML_ERROR, "Group quotas were requested, but this " | |
1218 | "filesystem does not have the feature enabled.\n"); | |
1219 | return 0; | |
1220 | } | |
1221 | if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && | |
1222 | !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { | |
1223 | mlog(ML_ERROR, "ACL support requested but extended attributes " | |
1224 | "feature is not enabled\n"); | |
1225 | return 0; | |
1226 | } | |
1227 | /* No ACL setting specified? Use XATTR feature... */ | |
1228 | if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | | |
1229 | OCFS2_MOUNT_NO_POSIX_ACL))) { | |
1230 | if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) | |
1231 | options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; | |
1232 | else | |
1233 | options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; | |
1234 | } | |
1235 | return 1; | |
1236 | } | |
1237 | ||
ccd979bd MF |
1238 | static int ocfs2_parse_options(struct super_block *sb, |
1239 | char *options, | |
c0123ade | 1240 | struct mount_options *mopt, |
ccd979bd MF |
1241 | int is_remount) |
1242 | { | |
52c303c5 | 1243 | int status, user_stack = 0; |
ccd979bd | 1244 | char *p; |
2c442719 | 1245 | u32 tmp; |
3eb5bdf0 NZ |
1246 | int token, option; |
1247 | substring_t args[MAX_OPT_ARGS]; | |
ccd979bd | 1248 | |
32a42d39 | 1249 | trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); |
ccd979bd | 1250 | |
d147b3d6 | 1251 | mopt->commit_interval = 0; |
4b37fcb7 | 1252 | mopt->mount_opt = OCFS2_MOUNT_NOINTR; |
c0123ade TY |
1253 | mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
1254 | mopt->slot = OCFS2_INVALID_SLOT; | |
73c8a800 | 1255 | mopt->localalloc_opt = -1; |
b61817e1 | 1256 | mopt->cluster_stack[0] = '\0'; |
d02f00cc | 1257 | mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; |
83f92318 | 1258 | mopt->dir_resv_level = -1; |
ccd979bd MF |
1259 | |
1260 | if (!options) { | |
1261 | status = 1; | |
1262 | goto bail; | |
1263 | } | |
1264 | ||
1265 | while ((p = strsep(&options, ",")) != NULL) { | |
ccd979bd MF |
1266 | if (!*p) |
1267 | continue; | |
1268 | ||
1269 | token = match_token(p, tokens, args); | |
1270 | switch (token) { | |
1271 | case Opt_hb_local: | |
c0123ade | 1272 | mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; |
ccd979bd MF |
1273 | break; |
1274 | case Opt_hb_none: | |
2c442719 SM |
1275 | mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; |
1276 | break; | |
1277 | case Opt_hb_global: | |
1278 | mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; | |
ccd979bd MF |
1279 | break; |
1280 | case Opt_barrier: | |
1281 | if (match_int(&args[0], &option)) { | |
1282 | status = 0; | |
1283 | goto bail; | |
1284 | } | |
1285 | if (option) | |
c0123ade | 1286 | mopt->mount_opt |= OCFS2_MOUNT_BARRIER; |
ccd979bd | 1287 | else |
c0123ade | 1288 | mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; |
ccd979bd MF |
1289 | break; |
1290 | case Opt_intr: | |
c0123ade | 1291 | mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; |
ccd979bd MF |
1292 | break; |
1293 | case Opt_nointr: | |
c0123ade | 1294 | mopt->mount_opt |= OCFS2_MOUNT_NOINTR; |
ccd979bd MF |
1295 | break; |
1296 | case Opt_err_panic: | |
7d0fb914 GR |
1297 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; |
1298 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; | |
c0123ade | 1299 | mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; |
ccd979bd MF |
1300 | break; |
1301 | case Opt_err_ro: | |
7d0fb914 | 1302 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; |
c0123ade | 1303 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; |
7d0fb914 GR |
1304 | mopt->mount_opt |= OCFS2_MOUNT_ERRORS_ROFS; |
1305 | break; | |
1306 | case Opt_err_cont: | |
1307 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; | |
1308 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; | |
1309 | mopt->mount_opt |= OCFS2_MOUNT_ERRORS_CONT; | |
ccd979bd MF |
1310 | break; |
1311 | case Opt_data_ordered: | |
c0123ade | 1312 | mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; |
ccd979bd MF |
1313 | break; |
1314 | case Opt_data_writeback: | |
c0123ade | 1315 | mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; |
ccd979bd | 1316 | break; |
cf1d6c76 TY |
1317 | case Opt_user_xattr: |
1318 | mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; | |
1319 | break; | |
1320 | case Opt_nouser_xattr: | |
1321 | mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; | |
1322 | break; | |
7f1a37e3 TY |
1323 | case Opt_atime_quantum: |
1324 | if (match_int(&args[0], &option)) { | |
1325 | status = 0; | |
1326 | goto bail; | |
1327 | } | |
1328 | if (option >= 0) | |
c0123ade | 1329 | mopt->atime_quantum = option; |
7f1a37e3 | 1330 | break; |
baf4661a | 1331 | case Opt_slot: |
baf4661a SM |
1332 | if (match_int(&args[0], &option)) { |
1333 | status = 0; | |
1334 | goto bail; | |
1335 | } | |
1336 | if (option) | |
c0123ade | 1337 | mopt->slot = (s16)option; |
baf4661a | 1338 | break; |
d147b3d6 | 1339 | case Opt_commit: |
d147b3d6 MF |
1340 | if (match_int(&args[0], &option)) { |
1341 | status = 0; | |
1342 | goto bail; | |
1343 | } | |
1344 | if (option < 0) | |
1345 | return 0; | |
1346 | if (option == 0) | |
2b4e30fb | 1347 | option = JBD2_DEFAULT_MAX_COMMIT_AGE; |
d147b3d6 MF |
1348 | mopt->commit_interval = HZ * option; |
1349 | break; | |
2fbe8d1e | 1350 | case Opt_localalloc: |
2fbe8d1e SM |
1351 | if (match_int(&args[0], &option)) { |
1352 | status = 0; | |
1353 | goto bail; | |
1354 | } | |
73c8a800 | 1355 | if (option >= 0) |
2fbe8d1e SM |
1356 | mopt->localalloc_opt = option; |
1357 | break; | |
53fc622b MF |
1358 | case Opt_localflocks: |
1359 | /* | |
1360 | * Changing this during remount could race | |
1361 | * flock() requests, or "unbalance" existing | |
1362 | * ones (e.g., a lock is taken in one mode but | |
1363 | * dropped in the other). If users care enough | |
1364 | * to flip locking modes during remount, we | |
1365 | * could add a "local" flag to individual | |
1366 | * flock structures for proper tracking of | |
1367 | * state. | |
1368 | */ | |
1369 | if (!is_remount) | |
1370 | mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; | |
1371 | break; | |
b61817e1 JB |
1372 | case Opt_stack: |
1373 | /* Check both that the option we were passed | |
1374 | * is of the right length and that it is a proper | |
1375 | * string of the right length. | |
1376 | */ | |
1377 | if (((args[0].to - args[0].from) != | |
1378 | OCFS2_STACK_LABEL_LEN) || | |
1379 | (strnlen(args[0].from, | |
1380 | OCFS2_STACK_LABEL_LEN) != | |
1381 | OCFS2_STACK_LABEL_LEN)) { | |
1382 | mlog(ML_ERROR, | |
1383 | "Invalid cluster_stack option\n"); | |
1384 | status = 0; | |
1385 | goto bail; | |
1386 | } | |
1387 | memcpy(mopt->cluster_stack, args[0].from, | |
1388 | OCFS2_STACK_LABEL_LEN); | |
1389 | mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; | |
52c303c5 MF |
1390 | /* |
1391 | * Open code the memcmp here as we don't have | |
1392 | * an osb to pass to | |
1393 | * ocfs2_userspace_stack(). | |
1394 | */ | |
1395 | if (memcmp(mopt->cluster_stack, | |
1396 | OCFS2_CLASSIC_CLUSTER_STACK, | |
1397 | OCFS2_STACK_LABEL_LEN)) | |
1398 | user_stack = 1; | |
b61817e1 | 1399 | break; |
12462f1d JB |
1400 | case Opt_inode64: |
1401 | mopt->mount_opt |= OCFS2_MOUNT_INODE64; | |
1402 | break; | |
19ece546 | 1403 | case Opt_usrquota: |
19ece546 JK |
1404 | mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; |
1405 | break; | |
1406 | case Opt_grpquota: | |
19ece546 JK |
1407 | mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; |
1408 | break; | |
7bdb0d18 TY |
1409 | case Opt_coherency_buffered: |
1410 | mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; | |
1411 | break; | |
1412 | case Opt_coherency_full: | |
1413 | mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; | |
1414 | break; | |
a68979b8 TY |
1415 | case Opt_acl: |
1416 | mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; | |
5297aad8 | 1417 | mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; |
a68979b8 TY |
1418 | break; |
1419 | case Opt_noacl: | |
5297aad8 | 1420 | mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; |
a68979b8 TY |
1421 | mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; |
1422 | break; | |
d02f00cc MF |
1423 | case Opt_resv_level: |
1424 | if (is_remount) | |
1425 | break; | |
1426 | if (match_int(&args[0], &option)) { | |
1427 | status = 0; | |
1428 | goto bail; | |
1429 | } | |
1430 | if (option >= OCFS2_MIN_RESV_LEVEL && | |
1431 | option < OCFS2_MAX_RESV_LEVEL) | |
1432 | mopt->resv_level = option; | |
1433 | break; | |
83f92318 MF |
1434 | case Opt_dir_resv_level: |
1435 | if (is_remount) | |
1436 | break; | |
1437 | if (match_int(&args[0], &option)) { | |
1438 | status = 0; | |
1439 | goto bail; | |
1440 | } | |
1441 | if (option >= OCFS2_MIN_RESV_LEVEL && | |
1442 | option < OCFS2_MAX_RESV_LEVEL) | |
1443 | mopt->dir_resv_level = option; | |
1444 | break; | |
1dfeb768 | 1445 | case Opt_journal_async_commit: |
1446 | mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT; | |
1447 | break; | |
ccd979bd MF |
1448 | default: |
1449 | mlog(ML_ERROR, | |
1450 | "Unrecognized mount option \"%s\" " | |
1451 | "or missing value\n", p); | |
1452 | status = 0; | |
1453 | goto bail; | |
1454 | } | |
1455 | } | |
1456 | ||
52c303c5 MF |
1457 | if (user_stack == 0) { |
1458 | /* Ensure only one heartbeat mode */ | |
1459 | tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | | |
1460 | OCFS2_MOUNT_HB_GLOBAL | | |
1461 | OCFS2_MOUNT_HB_NONE); | |
1462 | if (hweight32(tmp) != 1) { | |
1463 | mlog(ML_ERROR, "Invalid heartbeat mount options\n"); | |
1464 | status = 0; | |
1465 | goto bail; | |
1466 | } | |
2c442719 SM |
1467 | } |
1468 | ||
ccd979bd MF |
1469 | status = 1; |
1470 | ||
1471 | bail: | |
ccd979bd MF |
1472 | return status; |
1473 | } | |
1474 | ||
34c80b1d | 1475 | static int ocfs2_show_options(struct seq_file *s, struct dentry *root) |
d550071c | 1476 | { |
34c80b1d | 1477 | struct ocfs2_super *osb = OCFS2_SB(root->d_sb); |
d550071c | 1478 | unsigned long opts = osb->s_mount_opt; |
ebcee4b5 | 1479 | unsigned int local_alloc_megs; |
d550071c | 1480 | |
2c442719 SM |
1481 | if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { |
1482 | seq_printf(s, ",_netdev"); | |
1483 | if (opts & OCFS2_MOUNT_HB_LOCAL) | |
1484 | seq_printf(s, ",%s", OCFS2_HB_LOCAL); | |
1485 | else | |
1486 | seq_printf(s, ",%s", OCFS2_HB_GLOBAL); | |
1487 | } else | |
1488 | seq_printf(s, ",%s", OCFS2_HB_NONE); | |
d550071c SM |
1489 | |
1490 | if (opts & OCFS2_MOUNT_NOINTR) | |
1491 | seq_printf(s, ",nointr"); | |
1492 | ||
1493 | if (opts & OCFS2_MOUNT_DATA_WRITEBACK) | |
1494 | seq_printf(s, ",data=writeback"); | |
1495 | else | |
1496 | seq_printf(s, ",data=ordered"); | |
1497 | ||
1498 | if (opts & OCFS2_MOUNT_BARRIER) | |
1499 | seq_printf(s, ",barrier=1"); | |
1500 | ||
1501 | if (opts & OCFS2_MOUNT_ERRORS_PANIC) | |
1502 | seq_printf(s, ",errors=panic"); | |
7d0fb914 GR |
1503 | else if (opts & OCFS2_MOUNT_ERRORS_CONT) |
1504 | seq_printf(s, ",errors=continue"); | |
d550071c SM |
1505 | else |
1506 | seq_printf(s, ",errors=remount-ro"); | |
1507 | ||
1508 | if (osb->preferred_slot != OCFS2_INVALID_SLOT) | |
1509 | seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); | |
1510 | ||
34c80b1d | 1511 | seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); |
d550071c | 1512 | |
d147b3d6 MF |
1513 | if (osb->osb_commit_interval) |
1514 | seq_printf(s, ",commit=%u", | |
1515 | (unsigned) (osb->osb_commit_interval / HZ)); | |
1516 | ||
ebcee4b5 | 1517 | local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); |
6b82021b | 1518 | if (local_alloc_megs != ocfs2_la_default_mb(osb)) |
ebcee4b5 | 1519 | seq_printf(s, ",localalloc=%d", local_alloc_megs); |
2fbe8d1e | 1520 | |
53fc622b MF |
1521 | if (opts & OCFS2_MOUNT_LOCALFLOCKS) |
1522 | seq_printf(s, ",localflocks,"); | |
1523 | ||
b61817e1 | 1524 | if (osb->osb_cluster_stack[0]) |
a068acf2 KC |
1525 | seq_show_option_n(s, "cluster_stack", osb->osb_cluster_stack, |
1526 | OCFS2_STACK_LABEL_LEN); | |
19ece546 JK |
1527 | if (opts & OCFS2_MOUNT_USRQUOTA) |
1528 | seq_printf(s, ",usrquota"); | |
1529 | if (opts & OCFS2_MOUNT_GRPQUOTA) | |
1530 | seq_printf(s, ",grpquota"); | |
b61817e1 | 1531 | |
7bdb0d18 TY |
1532 | if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) |
1533 | seq_printf(s, ",coherency=buffered"); | |
1534 | else | |
1535 | seq_printf(s, ",coherency=full"); | |
1536 | ||
b0f73cfc SM |
1537 | if (opts & OCFS2_MOUNT_NOUSERXATTR) |
1538 | seq_printf(s, ",nouser_xattr"); | |
1539 | else | |
1540 | seq_printf(s, ",user_xattr"); | |
1541 | ||
12462f1d JB |
1542 | if (opts & OCFS2_MOUNT_INODE64) |
1543 | seq_printf(s, ",inode64"); | |
1544 | ||
a68979b8 TY |
1545 | if (opts & OCFS2_MOUNT_POSIX_ACL) |
1546 | seq_printf(s, ",acl"); | |
1547 | else | |
1548 | seq_printf(s, ",noacl"); | |
a68979b8 | 1549 | |
d02f00cc MF |
1550 | if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) |
1551 | seq_printf(s, ",resv_level=%d", osb->osb_resv_level); | |
1552 | ||
83f92318 MF |
1553 | if (osb->osb_dir_resv_level != osb->osb_resv_level) |
1554 | seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); | |
1555 | ||
1dfeb768 | 1556 | if (opts & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) |
1557 | seq_printf(s, ",journal_async_commit"); | |
1558 | ||
d550071c SM |
1559 | return 0; |
1560 | } | |
1561 | ||
ccd979bd MF |
1562 | static int __init ocfs2_init(void) |
1563 | { | |
c18ceab0 | 1564 | int status; |
a11f7e63 | 1565 | |
ccd979bd | 1566 | status = init_ocfs2_uptodate_cache(); |
342827d7 AV |
1567 | if (status < 0) |
1568 | goto out1; | |
ccd979bd MF |
1569 | |
1570 | status = ocfs2_initialize_mem_caches(); | |
342827d7 AV |
1571 | if (status < 0) |
1572 | goto out2; | |
ccd979bd | 1573 | |
ccd979bd | 1574 | ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); |
ccd979bd | 1575 | |
63e0c48a JB |
1576 | ocfs2_set_locking_protocol(); |
1577 | ||
9e33d69f | 1578 | status = register_quota_format(&ocfs2_quota_format); |
342827d7 | 1579 | if (status < 0) |
35ddf78e | 1580 | goto out3; |
342827d7 AV |
1581 | status = register_filesystem(&ocfs2_fs_type); |
1582 | if (!status) | |
1583 | return 0; | |
ccd979bd | 1584 | |
342827d7 | 1585 | unregister_quota_format(&ocfs2_quota_format); |
342827d7 | 1586 | out3: |
35ddf78e | 1587 | debugfs_remove(ocfs2_debugfs_root); |
342827d7 AV |
1588 | ocfs2_free_mem_caches(); |
1589 | out2: | |
1590 | exit_ocfs2_uptodate_cache(); | |
1591 | out1: | |
1592 | mlog_errno(status); | |
1593 | return status; | |
ccd979bd MF |
1594 | } |
1595 | ||
1596 | static void __exit ocfs2_exit(void) | |
1597 | { | |
9e33d69f JK |
1598 | unregister_quota_format(&ocfs2_quota_format); |
1599 | ||
ccd979bd MF |
1600 | debugfs_remove(ocfs2_debugfs_root); |
1601 | ||
1602 | ocfs2_free_mem_caches(); | |
1603 | ||
1604 | unregister_filesystem(&ocfs2_fs_type); | |
1605 | ||
ccd979bd | 1606 | exit_ocfs2_uptodate_cache(); |
ccd979bd MF |
1607 | } |
1608 | ||
1609 | static void ocfs2_put_super(struct super_block *sb) | |
1610 | { | |
32a42d39 | 1611 | trace_ocfs2_put_super(sb); |
ccd979bd MF |
1612 | |
1613 | ocfs2_sync_blockdev(sb); | |
1614 | ocfs2_dismount_volume(sb, 0); | |
ccd979bd MF |
1615 | } |
1616 | ||
726c3342 | 1617 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) |
ccd979bd MF |
1618 | { |
1619 | struct ocfs2_super *osb; | |
1620 | u32 numbits, freebits; | |
1621 | int status; | |
1622 | struct ocfs2_dinode *bm_lock; | |
1623 | struct buffer_head *bh = NULL; | |
1624 | struct inode *inode = NULL; | |
1625 | ||
32a42d39 | 1626 | trace_ocfs2_statfs(dentry->d_sb, buf); |
ccd979bd | 1627 | |
726c3342 | 1628 | osb = OCFS2_SB(dentry->d_sb); |
ccd979bd MF |
1629 | |
1630 | inode = ocfs2_get_system_file_inode(osb, | |
1631 | GLOBAL_BITMAP_SYSTEM_INODE, | |
1632 | OCFS2_INVALID_SLOT); | |
1633 | if (!inode) { | |
1634 | mlog(ML_ERROR, "failed to get bitmap inode\n"); | |
1635 | status = -EIO; | |
1636 | goto bail; | |
1637 | } | |
1638 | ||
e63aecb6 | 1639 | status = ocfs2_inode_lock(inode, &bh, 0); |
ccd979bd MF |
1640 | if (status < 0) { |
1641 | mlog_errno(status); | |
1642 | goto bail; | |
1643 | } | |
1644 | ||
1645 | bm_lock = (struct ocfs2_dinode *) bh->b_data; | |
1646 | ||
1647 | numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); | |
1648 | freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); | |
1649 | ||
1650 | buf->f_type = OCFS2_SUPER_MAGIC; | |
726c3342 | 1651 | buf->f_bsize = dentry->d_sb->s_blocksize; |
ccd979bd MF |
1652 | buf->f_namelen = OCFS2_MAX_FILENAME_LEN; |
1653 | buf->f_blocks = ((sector_t) numbits) * | |
1654 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); | |
1655 | buf->f_bfree = ((sector_t) freebits) * | |
1656 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); | |
1657 | buf->f_bavail = buf->f_bfree; | |
1658 | buf->f_files = numbits; | |
1659 | buf->f_ffree = freebits; | |
837711f8 CL |
1660 | buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) |
1661 | & 0xFFFFFFFFUL; | |
1662 | buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, | |
1663 | OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; | |
ccd979bd MF |
1664 | |
1665 | brelse(bh); | |
1666 | ||
e63aecb6 | 1667 | ocfs2_inode_unlock(inode, 0); |
ccd979bd MF |
1668 | status = 0; |
1669 | bail: | |
72865d92 | 1670 | iput(inode); |
ccd979bd | 1671 | |
c1e8d35e TM |
1672 | if (status) |
1673 | mlog_errno(status); | |
ccd979bd MF |
1674 | |
1675 | return status; | |
1676 | } | |
1677 | ||
51cc5068 | 1678 | static void ocfs2_inode_init_once(void *data) |
ccd979bd MF |
1679 | { |
1680 | struct ocfs2_inode_info *oi = data; | |
1681 | ||
a35afb83 CL |
1682 | oi->ip_flags = 0; |
1683 | oi->ip_open_count = 0; | |
1684 | spin_lock_init(&oi->ip_lock); | |
1685 | ocfs2_extent_map_init(&oi->vfs_inode); | |
1686 | INIT_LIST_HEAD(&oi->ip_io_markers); | |
4506cfb6 | 1687 | INIT_LIST_HEAD(&oi->ip_unwritten_list); |
a35afb83 | 1688 | oi->ip_dir_start_lookup = 0; |
a35afb83 | 1689 | init_rwsem(&oi->ip_alloc_sem); |
cf1d6c76 | 1690 | init_rwsem(&oi->ip_xattr_sem); |
a35afb83 | 1691 | mutex_init(&oi->ip_io_mutex); |
ccd979bd | 1692 | |
a35afb83 CL |
1693 | oi->ip_blkno = 0ULL; |
1694 | oi->ip_clusters = 0; | |
ccd979bd | 1695 | |
4fe370af MF |
1696 | ocfs2_resv_init_once(&oi->ip_la_data_resv); |
1697 | ||
a35afb83 | 1698 | ocfs2_lock_res_init_once(&oi->ip_rw_lockres); |
e63aecb6 | 1699 | ocfs2_lock_res_init_once(&oi->ip_inode_lockres); |
a35afb83 | 1700 | ocfs2_lock_res_init_once(&oi->ip_open_lockres); |
ccd979bd | 1701 | |
8cb471e8 | 1702 | ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), |
6e5a3d75 | 1703 | &ocfs2_inode_caching_ops); |
ccd979bd | 1704 | |
a35afb83 | 1705 | inode_init_once(&oi->vfs_inode); |
ccd979bd MF |
1706 | } |
1707 | ||
1708 | static int ocfs2_initialize_mem_caches(void) | |
1709 | { | |
1710 | ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", | |
fffb60f9 PJ |
1711 | sizeof(struct ocfs2_inode_info), |
1712 | 0, | |
1713 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| | |
5d097056 | 1714 | SLAB_MEM_SPREAD|SLAB_ACCOUNT), |
20c2df83 | 1715 | ocfs2_inode_init_once); |
9e33d69f JK |
1716 | ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", |
1717 | sizeof(struct ocfs2_dquot), | |
1718 | 0, | |
1719 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| | |
1720 | SLAB_MEM_SPREAD), | |
1721 | NULL); | |
1722 | ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", | |
1723 | sizeof(struct ocfs2_quota_chunk), | |
1724 | 0, | |
1725 | (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), | |
1726 | NULL); | |
1727 | if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || | |
1728 | !ocfs2_qf_chunk_cachep) { | |
a17b485a | 1729 | kmem_cache_destroy(ocfs2_inode_cachep); |
1730 | kmem_cache_destroy(ocfs2_dquot_cachep); | |
1731 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); | |
ccd979bd | 1732 | return -ENOMEM; |
9e33d69f | 1733 | } |
ccd979bd | 1734 | |
ccd979bd MF |
1735 | return 0; |
1736 | } | |
1737 | ||
1738 | static void ocfs2_free_mem_caches(void) | |
1739 | { | |
8c0a8537 KS |
1740 | /* |
1741 | * Make sure all delayed rcu free inodes are flushed before we | |
1742 | * destroy cache. | |
1743 | */ | |
1744 | rcu_barrier(); | |
a17b485a | 1745 | kmem_cache_destroy(ocfs2_inode_cachep); |
ccd979bd | 1746 | ocfs2_inode_cachep = NULL; |
9e33d69f | 1747 | |
a17b485a | 1748 | kmem_cache_destroy(ocfs2_dquot_cachep); |
9e33d69f JK |
1749 | ocfs2_dquot_cachep = NULL; |
1750 | ||
a17b485a | 1751 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); |
9e33d69f | 1752 | ocfs2_qf_chunk_cachep = NULL; |
ccd979bd MF |
1753 | } |
1754 | ||
1755 | static int ocfs2_get_sector(struct super_block *sb, | |
1756 | struct buffer_head **bh, | |
1757 | int block, | |
1758 | int sect_size) | |
1759 | { | |
1760 | if (!sb_set_blocksize(sb, sect_size)) { | |
1761 | mlog(ML_ERROR, "unable to set blocksize\n"); | |
1762 | return -EIO; | |
1763 | } | |
1764 | ||
1765 | *bh = sb_getblk(sb, block); | |
1766 | if (!*bh) { | |
7391a294 RX |
1767 | mlog_errno(-ENOMEM); |
1768 | return -ENOMEM; | |
ccd979bd MF |
1769 | } |
1770 | lock_buffer(*bh); | |
1771 | if (!buffer_dirty(*bh)) | |
1772 | clear_buffer_uptodate(*bh); | |
1773 | unlock_buffer(*bh); | |
dfec8a14 | 1774 | ll_rw_block(REQ_OP_READ, 0, 1, bh); |
ccd979bd | 1775 | wait_on_buffer(*bh); |
28d57d43 | 1776 | if (!buffer_uptodate(*bh)) { |
1777 | mlog_errno(-EIO); | |
1778 | brelse(*bh); | |
1779 | *bh = NULL; | |
1780 | return -EIO; | |
1781 | } | |
1782 | ||
ccd979bd MF |
1783 | return 0; |
1784 | } | |
1785 | ||
ccd979bd MF |
1786 | static int ocfs2_mount_volume(struct super_block *sb) |
1787 | { | |
1788 | int status = 0; | |
1789 | int unlock_super = 0; | |
1790 | struct ocfs2_super *osb = OCFS2_SB(sb); | |
1791 | ||
ccd979bd MF |
1792 | if (ocfs2_is_hard_readonly(osb)) |
1793 | goto leave; | |
1794 | ||
5500ab4e GH |
1795 | mutex_init(&osb->obs_trim_fs_mutex); |
1796 | ||
ccd979bd MF |
1797 | status = ocfs2_dlm_init(osb); |
1798 | if (status < 0) { | |
1799 | mlog_errno(status); | |
a52370b3 GH |
1800 | if (status == -EBADR && ocfs2_userspace_stack(osb)) |
1801 | mlog(ML_ERROR, "couldn't mount because cluster name on" | |
1802 | " disk does not match the running cluster name.\n"); | |
ccd979bd MF |
1803 | goto leave; |
1804 | } | |
1805 | ||
ccd979bd MF |
1806 | status = ocfs2_super_lock(osb, 1); |
1807 | if (status < 0) { | |
1808 | mlog_errno(status); | |
1809 | goto leave; | |
1810 | } | |
1811 | unlock_super = 1; | |
1812 | ||
1813 | /* This will load up the node map and add ourselves to it. */ | |
1814 | status = ocfs2_find_slot(osb); | |
1815 | if (status < 0) { | |
1816 | mlog_errno(status); | |
1817 | goto leave; | |
1818 | } | |
1819 | ||
ccd979bd MF |
1820 | /* load all node-local system inodes */ |
1821 | status = ocfs2_init_local_system_inodes(osb); | |
1822 | if (status < 0) { | |
1823 | mlog_errno(status); | |
1824 | goto leave; | |
1825 | } | |
1826 | ||
1827 | status = ocfs2_check_volume(osb); | |
1828 | if (status < 0) { | |
1829 | mlog_errno(status); | |
1830 | goto leave; | |
1831 | } | |
1832 | ||
1833 | status = ocfs2_truncate_log_init(osb); | |
06c59bb8 | 1834 | if (status < 0) |
ccd979bd | 1835 | mlog_errno(status); |
c271c5c2 | 1836 | |
ccd979bd MF |
1837 | leave: |
1838 | if (unlock_super) | |
1839 | ocfs2_super_unlock(osb, 1); | |
1840 | ||
ccd979bd MF |
1841 | return status; |
1842 | } | |
1843 | ||
ccd979bd MF |
1844 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) |
1845 | { | |
286eaa95 | 1846 | int tmp, hangup_needed = 0; |
ccd979bd | 1847 | struct ocfs2_super *osb = NULL; |
99d7a882 | 1848 | char nodestr[12]; |
ccd979bd | 1849 | |
32a42d39 | 1850 | trace_ocfs2_dismount_volume(sb); |
ccd979bd MF |
1851 | |
1852 | BUG_ON(!sb); | |
1853 | osb = OCFS2_SB(sb); | |
1854 | BUG_ON(!osb); | |
1855 | ||
5f483c4a GH |
1856 | /* Remove file check sysfs related directores/files, |
1857 | * and wait for the pending file check operations */ | |
1858 | ocfs2_filecheck_remove_sysfs(osb); | |
1859 | ||
1860 | kset_unregister(osb->osb_dev_kset); | |
1861 | ||
692684e1 SM |
1862 | /* Orphan scan should be stopped as early as possible */ |
1863 | ocfs2_orphan_scan_stop(osb); | |
1864 | ||
19ece546 JK |
1865 | ocfs2_disable_quotas(osb); |
1866 | ||
e3a767b6 JK |
1867 | /* All dquots should be freed by now */ |
1868 | WARN_ON(!llist_empty(&osb->dquot_drop_list)); | |
1869 | /* Wait for worker to be done with the work structure in osb */ | |
1870 | cancel_work_sync(&osb->dquot_drop_work); | |
1871 | ||
ccd979bd MF |
1872 | ocfs2_shutdown_local_alloc(osb); |
1873 | ||
b253bfd8 X |
1874 | ocfs2_truncate_log_shutdown(osb); |
1875 | ||
553abd04 JB |
1876 | /* This will disable recovery and flush any recovery work. */ |
1877 | ocfs2_recovery_exit(osb); | |
ccd979bd MF |
1878 | |
1879 | ocfs2_journal_shutdown(osb); | |
1880 | ||
1881 | ocfs2_sync_blockdev(sb); | |
1882 | ||
374a263e TM |
1883 | ocfs2_purge_refcount_trees(osb); |
1884 | ||
4670c46d JB |
1885 | /* No cluster connection means we've failed during mount, so skip |
1886 | * all the steps which depended on that to complete. */ | |
1887 | if (osb->cconn) { | |
ccd979bd MF |
1888 | tmp = ocfs2_super_lock(osb, 1); |
1889 | if (tmp < 0) { | |
1890 | mlog_errno(tmp); | |
1891 | return; | |
1892 | } | |
19b613d4 | 1893 | } |
ccd979bd | 1894 | |
19b613d4 MF |
1895 | if (osb->slot_num != OCFS2_INVALID_SLOT) |
1896 | ocfs2_put_slot(osb); | |
ccd979bd | 1897 | |
4670c46d | 1898 | if (osb->cconn) |
ccd979bd | 1899 | ocfs2_super_unlock(osb, 1); |
ccd979bd MF |
1900 | |
1901 | ocfs2_release_system_inodes(osb); | |
1902 | ||
6953b4c0 | 1903 | /* |
6953b4c0 JB |
1904 | * If we're dismounting due to mount error, mount.ocfs2 will clean |
1905 | * up heartbeat. If we're a local mount, there is no heartbeat. | |
1906 | * If we failed before we got a uuid_str yet, we can't stop | |
1907 | * heartbeat. Otherwise, do it. | |
1908 | */ | |
03efed8a TY |
1909 | if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str && |
1910 | !ocfs2_is_hard_readonly(osb)) | |
286eaa95 JB |
1911 | hangup_needed = 1; |
1912 | ||
1913 | if (osb->cconn) | |
1914 | ocfs2_dlm_shutdown(osb, hangup_needed); | |
1915 | ||
73be192b | 1916 | ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); |
5e7a3ed9 | 1917 | debugfs_remove_recursive(osb->osb_debug_root); |
286eaa95 JB |
1918 | |
1919 | if (hangup_needed) | |
6953b4c0 | 1920 | ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); |
ccd979bd MF |
1921 | |
1922 | atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); | |
1923 | ||
c271c5c2 SM |
1924 | if (ocfs2_mount_local(osb)) |
1925 | snprintf(nodestr, sizeof(nodestr), "local"); | |
1926 | else | |
19fdb624 | 1927 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
c271c5c2 SM |
1928 | |
1929 | printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", | |
1930 | osb->dev_str, nodestr); | |
ccd979bd MF |
1931 | |
1932 | ocfs2_delete_osb(osb); | |
1933 | kfree(osb); | |
1934 | sb->s_dev = 0; | |
1935 | sb->s_fs_info = NULL; | |
1936 | } | |
1937 | ||
1938 | static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, | |
1939 | unsigned uuid_bytes) | |
1940 | { | |
1941 | int i, ret; | |
1942 | char *ptr; | |
1943 | ||
1944 | BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); | |
1945 | ||
cd861280 | 1946 | osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); |
ccd979bd MF |
1947 | if (osb->uuid_str == NULL) |
1948 | return -ENOMEM; | |
1949 | ||
ccd979bd MF |
1950 | for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { |
1951 | /* print with null */ | |
1952 | ret = snprintf(ptr, 3, "%02X", uuid[i]); | |
1953 | if (ret != 2) /* drop super cleans up */ | |
1954 | return -EINVAL; | |
1955 | /* then only advance past the last char */ | |
1956 | ptr += 2; | |
1957 | } | |
1958 | ||
1959 | return 0; | |
1960 | } | |
1961 | ||
3bdb8efd PL |
1962 | /* Make sure entire volume is addressable by our journal. Requires |
1963 | osb_clusters_at_boot to be valid and for the journal to have been | |
1964 | initialized by ocfs2_journal_init(). */ | |
1965 | static int ocfs2_journal_addressable(struct ocfs2_super *osb) | |
1966 | { | |
1967 | int status = 0; | |
1968 | u64 max_block = | |
1969 | ocfs2_clusters_to_blocks(osb->sb, | |
1970 | osb->osb_clusters_at_boot) - 1; | |
1971 | ||
1972 | /* 32-bit block number is always OK. */ | |
1973 | if (max_block <= (u32)~0ULL) | |
1974 | goto out; | |
1975 | ||
1976 | /* Volume is "huge", so see if our journal is new enough to | |
1977 | support it. */ | |
1978 | if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, | |
1979 | OCFS2_FEATURE_COMPAT_JBD2_SB) && | |
1980 | jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, | |
1981 | JBD2_FEATURE_INCOMPAT_64BIT))) { | |
1982 | mlog(ML_ERROR, "The journal cannot address the entire volume. " | |
1983 | "Enable the 'block64' journal option with tunefs.ocfs2"); | |
1984 | status = -EFBIG; | |
1985 | goto out; | |
1986 | } | |
1987 | ||
1988 | out: | |
1989 | return status; | |
1990 | } | |
1991 | ||
ccd979bd MF |
1992 | static int ocfs2_initialize_super(struct super_block *sb, |
1993 | struct buffer_head *bh, | |
73be192b JB |
1994 | int sector_size, |
1995 | struct ocfs2_blockcheck_stats *stats) | |
ccd979bd | 1996 | { |
bddb8eb3 | 1997 | int status; |
5a254031 MF |
1998 | int i, cbits, bbits; |
1999 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; | |
ccd979bd | 2000 | struct inode *inode = NULL; |
ccd979bd | 2001 | struct ocfs2_journal *journal; |
ccd979bd | 2002 | struct ocfs2_super *osb; |
3bdb8efd | 2003 | u64 total_blocks; |
ccd979bd | 2004 | |
cd861280 | 2005 | osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); |
ccd979bd MF |
2006 | if (!osb) { |
2007 | status = -ENOMEM; | |
2008 | mlog_errno(status); | |
2009 | goto bail; | |
2010 | } | |
2011 | ||
2012 | sb->s_fs_info = osb; | |
2013 | sb->s_op = &ocfs2_sops; | |
ba87167c | 2014 | sb->s_d_op = &ocfs2_dentry_ops; |
ccd979bd | 2015 | sb->s_export_op = &ocfs2_export_ops; |
664dbd5f | 2016 | sb->s_qcop = &dquot_quotactl_sysfile_ops; |
19ece546 | 2017 | sb->dq_op = &ocfs2_quota_operations; |
1c92ec67 | 2018 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP; |
cf1d6c76 | 2019 | sb->s_xattr = ocfs2_xattr_handlers; |
e0dceaf0 | 2020 | sb->s_time_gran = 1; |
1751e8a6 | 2021 | sb->s_flags |= SB_NOATIME; |
ccd979bd | 2022 | /* this is needed to support O_LARGEFILE */ |
5a254031 MF |
2023 | cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); |
2024 | bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); | |
2025 | sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); | |
85787090 | 2026 | memcpy(&sb->s_uuid, di->id2.i_super.s_uuid, |
58be19dc | 2027 | sizeof(di->id2.i_super.s_uuid)); |
ccd979bd | 2028 | |
9b7895ef MF |
2029 | osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; |
2030 | ||
2031 | for (i = 0; i < 3; i++) | |
2032 | osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); | |
2033 | osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); | |
2034 | ||
ccd979bd | 2035 | osb->sb = sb; |
ccd979bd | 2036 | osb->s_sectsize_bits = blksize_bits(sector_size); |
ebdec83b | 2037 | BUG_ON(!osb->s_sectsize_bits); |
ccd979bd | 2038 | |
34d024f8 MF |
2039 | spin_lock_init(&osb->dc_task_lock); |
2040 | init_waitqueue_head(&osb->dc_event); | |
2041 | osb->dc_work_sequence = 0; | |
2042 | osb->dc_wake_sequence = 0; | |
ccd979bd MF |
2043 | INIT_LIST_HEAD(&osb->blocked_lock_list); |
2044 | osb->blocked_lock_count = 0; | |
ccd979bd | 2045 | spin_lock_init(&osb->osb_lock); |
c8b9cf9a | 2046 | spin_lock_init(&osb->osb_xattr_lock); |
b89c5428 | 2047 | ocfs2_init_steal_slots(osb); |
ccd979bd | 2048 | |
43b10a20 | 2049 | mutex_init(&osb->system_file_mutex); |
2050 | ||
ccd979bd MF |
2051 | atomic_set(&osb->alloc_stats.moves, 0); |
2052 | atomic_set(&osb->alloc_stats.local_data, 0); | |
2053 | atomic_set(&osb->alloc_stats.bitmap_data, 0); | |
2054 | atomic_set(&osb->alloc_stats.bg_allocs, 0); | |
2055 | atomic_set(&osb->alloc_stats.bg_extends, 0); | |
2056 | ||
73be192b JB |
2057 | /* Copy the blockcheck stats from the superblock probe */ |
2058 | osb->osb_ecc_stats = *stats; | |
2059 | ||
ccd979bd MF |
2060 | ocfs2_init_node_maps(osb); |
2061 | ||
2062 | snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", | |
2063 | MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); | |
2064 | ||
75d9bbc7 GR |
2065 | osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); |
2066 | if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { | |
2067 | mlog(ML_ERROR, "Invalid number of node slots (%u)\n", | |
2068 | osb->max_slots); | |
2069 | status = -EINVAL; | |
2070 | goto bail; | |
2071 | } | |
75d9bbc7 | 2072 | |
8b712cd5 JM |
2073 | ocfs2_orphan_scan_init(osb); |
2074 | ||
553abd04 JB |
2075 | status = ocfs2_recovery_init(osb); |
2076 | if (status) { | |
2077 | mlog(ML_ERROR, "Unable to initialize recovery state\n"); | |
2078 | mlog_errno(status); | |
2079 | goto bail; | |
2080 | } | |
ccd979bd MF |
2081 | |
2082 | init_waitqueue_head(&osb->checkpoint_event); | |
ccd979bd | 2083 | |
7f1a37e3 TY |
2084 | osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
2085 | ||
ccd979bd MF |
2086 | osb->slot_num = OCFS2_INVALID_SLOT; |
2087 | ||
8154da3d TY |
2088 | osb->s_xattr_inline_size = le16_to_cpu( |
2089 | di->id2.i_super.s_xattr_inline_size); | |
fdd77704 | 2090 | |
ccd979bd MF |
2091 | osb->local_alloc_state = OCFS2_LA_UNUSED; |
2092 | osb->local_alloc_bh = NULL; | |
9c7af40b | 2093 | INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); |
ccd979bd | 2094 | |
ccd979bd MF |
2095 | init_waitqueue_head(&osb->osb_mount_event); |
2096 | ||
d02f00cc MF |
2097 | status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); |
2098 | if (status) { | |
2099 | mlog_errno(status); | |
2100 | goto bail; | |
2101 | } | |
2102 | ||
ccd979bd MF |
2103 | osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); |
2104 | if (!osb->vol_label) { | |
2105 | mlog(ML_ERROR, "unable to alloc vol label\n"); | |
2106 | status = -ENOMEM; | |
2107 | goto bail; | |
2108 | } | |
2109 | ||
539d8264 SM |
2110 | osb->slot_recovery_generations = |
2111 | kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), | |
2112 | GFP_KERNEL); | |
2113 | if (!osb->slot_recovery_generations) { | |
2114 | status = -ENOMEM; | |
2115 | mlog_errno(status); | |
2116 | goto bail; | |
2117 | } | |
2118 | ||
b4df6ed8 MF |
2119 | init_waitqueue_head(&osb->osb_wipe_event); |
2120 | osb->osb_orphan_wipes = kcalloc(osb->max_slots, | |
2121 | sizeof(*osb->osb_orphan_wipes), | |
2122 | GFP_KERNEL); | |
2123 | if (!osb->osb_orphan_wipes) { | |
2124 | status = -ENOMEM; | |
2125 | mlog_errno(status); | |
2126 | goto bail; | |
2127 | } | |
2128 | ||
374a263e TM |
2129 | osb->osb_rf_lock_tree = RB_ROOT; |
2130 | ||
ccd979bd MF |
2131 | osb->s_feature_compat = |
2132 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); | |
2133 | osb->s_feature_ro_compat = | |
2134 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); | |
2135 | osb->s_feature_incompat = | |
2136 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); | |
2137 | ||
2138 | if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { | |
2139 | mlog(ML_ERROR, "couldn't mount because of unsupported " | |
2140 | "optional features (%x).\n", i); | |
2141 | status = -EINVAL; | |
2142 | goto bail; | |
2143 | } | |
bc98a42c | 2144 | if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { |
ccd979bd MF |
2145 | mlog(ML_ERROR, "couldn't mount RDWR because of " |
2146 | "unsupported optional features (%x).\n", i); | |
2147 | status = -EINVAL; | |
2148 | goto bail; | |
2149 | } | |
2150 | ||
98f486f2 SM |
2151 | if (ocfs2_clusterinfo_valid(osb)) { |
2152 | osb->osb_stackflags = | |
2153 | OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; | |
c74a3bdd | 2154 | strlcpy(osb->osb_cluster_stack, |
b61817e1 | 2155 | OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, |
c74a3bdd | 2156 | OCFS2_STACK_LABEL_LEN + 1); |
b61817e1 JB |
2157 | if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { |
2158 | mlog(ML_ERROR, | |
2159 | "couldn't mount because of an invalid " | |
2160 | "cluster stack label (%s) \n", | |
2161 | osb->osb_cluster_stack); | |
2162 | status = -EINVAL; | |
2163 | goto bail; | |
2164 | } | |
c74a3bdd GR |
2165 | strlcpy(osb->osb_cluster_name, |
2166 | OCFS2_RAW_SB(di)->s_cluster_info.ci_cluster, | |
2167 | OCFS2_CLUSTER_NAME_LEN + 1); | |
b61817e1 JB |
2168 | } else { |
2169 | /* The empty string is identical with classic tools that | |
2170 | * don't know about s_cluster_info. */ | |
2171 | osb->osb_cluster_stack[0] = '\0'; | |
2172 | } | |
2173 | ||
ccd979bd MF |
2174 | get_random_bytes(&osb->s_next_generation, sizeof(u32)); |
2175 | ||
2176 | /* FIXME | |
2177 | * This should be done in ocfs2_journal_init(), but unknown | |
2178 | * ordering issues will cause the filesystem to crash. | |
2179 | * If anyone wants to figure out what part of the code | |
2180 | * refers to osb->journal before ocfs2_journal_init() is run, | |
2181 | * be my guest. | |
2182 | */ | |
2183 | /* initialize our journal structure */ | |
2184 | ||
cd861280 | 2185 | journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); |
ccd979bd MF |
2186 | if (!journal) { |
2187 | mlog(ML_ERROR, "unable to alloc journal\n"); | |
2188 | status = -ENOMEM; | |
2189 | goto bail; | |
2190 | } | |
2191 | osb->journal = journal; | |
2192 | journal->j_osb = osb; | |
2193 | ||
2194 | atomic_set(&journal->j_num_trans, 0); | |
2195 | init_rwsem(&journal->j_trans_barrier); | |
2196 | init_waitqueue_head(&journal->j_checkpointed); | |
2197 | spin_lock_init(&journal->j_lock); | |
2198 | journal->j_trans_id = (unsigned long) 1; | |
2199 | INIT_LIST_HEAD(&journal->j_la_cleanups); | |
c4028958 | 2200 | INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); |
ccd979bd MF |
2201 | journal->j_state = OCFS2_JOURNAL_FREE; |
2202 | ||
e3a767b6 JK |
2203 | INIT_WORK(&osb->dquot_drop_work, ocfs2_drop_dquot_refs); |
2204 | init_llist_head(&osb->dquot_drop_list); | |
2205 | ||
ccd979bd MF |
2206 | /* get some pseudo constants for clustersize bits */ |
2207 | osb->s_clustersize_bits = | |
2208 | le32_to_cpu(di->id2.i_super.s_clustersize_bits); | |
2209 | osb->s_clustersize = 1 << osb->s_clustersize_bits; | |
ccd979bd MF |
2210 | |
2211 | if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || | |
2212 | osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { | |
2213 | mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", | |
2214 | osb->s_clustersize); | |
2215 | status = -EINVAL; | |
2216 | goto bail; | |
2217 | } | |
2218 | ||
3bdb8efd PL |
2219 | total_blocks = ocfs2_clusters_to_blocks(osb->sb, |
2220 | le32_to_cpu(di->i_clusters)); | |
2221 | ||
2222 | status = generic_check_addressable(osb->sb->s_blocksize_bits, | |
2223 | total_blocks); | |
2224 | if (status) { | |
2225 | mlog(ML_ERROR, "Volume too large " | |
2226 | "to mount safely on this system"); | |
2227 | status = -EFBIG; | |
ccd979bd MF |
2228 | goto bail; |
2229 | } | |
2230 | ||
2231 | if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, | |
2232 | sizeof(di->id2.i_super.s_uuid))) { | |
2233 | mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); | |
2234 | status = -ENOMEM; | |
2235 | goto bail; | |
2236 | } | |
2237 | ||
69201bb1 FF |
2238 | strlcpy(osb->vol_label, di->id2.i_super.s_label, |
2239 | OCFS2_MAX_VOL_LABEL_LEN); | |
ccd979bd MF |
2240 | osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); |
2241 | osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); | |
2242 | osb->first_cluster_group_blkno = | |
2243 | le64_to_cpu(di->id2.i_super.s_first_cluster_group); | |
2244 | osb->fs_generation = le32_to_cpu(di->i_fs_generation); | |
cf1d6c76 | 2245 | osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); |
32a42d39 TM |
2246 | trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, |
2247 | (unsigned long long)osb->root_blkno, | |
2248 | (unsigned long long)osb->system_dir_blkno, | |
2249 | osb->s_clustersize_bits); | |
ccd979bd MF |
2250 | |
2251 | osb->osb_dlm_debug = ocfs2_new_dlm_debug(); | |
2252 | if (!osb->osb_dlm_debug) { | |
2253 | status = -ENOMEM; | |
2254 | mlog_errno(status); | |
2255 | goto bail; | |
2256 | } | |
2257 | ||
2258 | atomic_set(&osb->vol_state, VOLUME_INIT); | |
2259 | ||
2260 | /* load root, system_dir, and all global system inodes */ | |
2261 | status = ocfs2_init_global_system_inodes(osb); | |
2262 | if (status < 0) { | |
2263 | mlog_errno(status); | |
2264 | goto bail; | |
2265 | } | |
2266 | ||
2267 | /* | |
2268 | * global bitmap | |
2269 | */ | |
2270 | inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, | |
2271 | OCFS2_INVALID_SLOT); | |
2272 | if (!inode) { | |
2273 | status = -EINVAL; | |
2274 | mlog_errno(status); | |
2275 | goto bail; | |
2276 | } | |
2277 | ||
2278 | osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; | |
6b82021b | 2279 | osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; |
ccd979bd | 2280 | iput(inode); |
ccd979bd | 2281 | |
8571882c TM |
2282 | osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, |
2283 | osb->s_feature_incompat) * 8; | |
ccd979bd MF |
2284 | |
2285 | status = ocfs2_init_slot_info(osb); | |
2286 | if (status < 0) { | |
2287 | mlog_errno(status); | |
2288 | goto bail; | |
2289 | } | |
9de16262 | 2290 | cleancache_init_shared_fs(sb); |
ccd979bd | 2291 | |
44be9756 | 2292 | osb->ocfs2_wq = alloc_ordered_workqueue("ocfs2_wq", WQ_MEM_RECLAIM); |
35ddf78e | 2293 | if (!osb->ocfs2_wq) { |
2294 | status = -ENOMEM; | |
2295 | mlog_errno(status); | |
2296 | } | |
2297 | ||
ccd979bd | 2298 | bail: |
ccd979bd MF |
2299 | return status; |
2300 | } | |
2301 | ||
2302 | /* | |
2303 | * will return: -EAGAIN if it is ok to keep searching for superblocks | |
2304 | * -EINVAL if there is a bad superblock | |
2305 | * 0 on success | |
2306 | */ | |
2307 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, | |
2308 | struct buffer_head *bh, | |
73be192b JB |
2309 | u32 blksz, |
2310 | struct ocfs2_blockcheck_stats *stats) | |
ccd979bd MF |
2311 | { |
2312 | int status = -EAGAIN; | |
2313 | ||
ccd979bd MF |
2314 | if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, |
2315 | strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { | |
d030cc97 JB |
2316 | /* We have to do a raw check of the feature here */ |
2317 | if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & | |
2318 | OCFS2_FEATURE_INCOMPAT_META_ECC) { | |
2319 | status = ocfs2_block_check_validate(bh->b_data, | |
2320 | bh->b_size, | |
73be192b JB |
2321 | &di->i_check, |
2322 | stats); | |
d030cc97 JB |
2323 | if (status) |
2324 | goto out; | |
2325 | } | |
ccd979bd MF |
2326 | status = -EINVAL; |
2327 | if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { | |
2328 | mlog(ML_ERROR, "found superblock with incorrect block " | |
2329 | "size: found %u, should be %u\n", | |
2330 | 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), | |
2331 | blksz); | |
2332 | } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != | |
2333 | OCFS2_MAJOR_REV_LEVEL || | |
2334 | le16_to_cpu(di->id2.i_super.s_minor_rev_level) != | |
2335 | OCFS2_MINOR_REV_LEVEL) { | |
2336 | mlog(ML_ERROR, "found superblock with bad version: " | |
2337 | "found %u.%u, should be %u.%u\n", | |
2338 | le16_to_cpu(di->id2.i_super.s_major_rev_level), | |
2339 | le16_to_cpu(di->id2.i_super.s_minor_rev_level), | |
2340 | OCFS2_MAJOR_REV_LEVEL, | |
2341 | OCFS2_MINOR_REV_LEVEL); | |
2342 | } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { | |
2343 | mlog(ML_ERROR, "bad block number on superblock: " | |
b0697053 | 2344 | "found %llu, should be %llu\n", |
1ca1a111 | 2345 | (unsigned long long)le64_to_cpu(di->i_blkno), |
b0697053 | 2346 | (unsigned long long)bh->b_blocknr); |
ccd979bd MF |
2347 | } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || |
2348 | le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { | |
2349 | mlog(ML_ERROR, "bad cluster size found: %u\n", | |
2350 | 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); | |
2351 | } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { | |
2352 | mlog(ML_ERROR, "bad root_blkno: 0\n"); | |
2353 | } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { | |
2354 | mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); | |
2355 | } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { | |
2356 | mlog(ML_ERROR, | |
2357 | "Superblock slots found greater than file system " | |
2358 | "maximum: found %u, max %u\n", | |
2359 | le16_to_cpu(di->id2.i_super.s_max_slots), | |
2360 | OCFS2_MAX_SLOTS); | |
2361 | } else { | |
2362 | /* found it! */ | |
2363 | status = 0; | |
2364 | } | |
2365 | } | |
2366 | ||
d030cc97 | 2367 | out: |
c1e8d35e TM |
2368 | if (status && status != -EAGAIN) |
2369 | mlog_errno(status); | |
ccd979bd MF |
2370 | return status; |
2371 | } | |
2372 | ||
2373 | static int ocfs2_check_volume(struct ocfs2_super *osb) | |
2374 | { | |
bddb8eb3 | 2375 | int status; |
ccd979bd | 2376 | int dirty; |
c271c5c2 | 2377 | int local; |
ccd979bd MF |
2378 | struct ocfs2_dinode *local_alloc = NULL; /* only used if we |
2379 | * recover | |
2380 | * ourselves. */ | |
2381 | ||
ccd979bd MF |
2382 | /* Init our journal object. */ |
2383 | status = ocfs2_journal_init(osb->journal, &dirty); | |
2384 | if (status < 0) { | |
2385 | mlog(ML_ERROR, "Could not initialize journal!\n"); | |
2386 | goto finally; | |
2387 | } | |
2388 | ||
3bdb8efd PL |
2389 | /* Now that journal has been initialized, check to make sure |
2390 | entire volume is addressable. */ | |
2391 | status = ocfs2_journal_addressable(osb); | |
2392 | if (status) | |
2393 | goto finally; | |
2394 | ||
ccd979bd MF |
2395 | /* If the journal was unmounted cleanly then we don't want to |
2396 | * recover anything. Otherwise, journal_load will do that | |
2397 | * dirty work for us :) */ | |
2398 | if (!dirty) { | |
2399 | status = ocfs2_journal_wipe(osb->journal, 0); | |
2400 | if (status < 0) { | |
2401 | mlog_errno(status); | |
2402 | goto finally; | |
2403 | } | |
2404 | } else { | |
619c200d SM |
2405 | printk(KERN_NOTICE "ocfs2: File system on device (%s) was not " |
2406 | "unmounted cleanly, recovering it.\n", osb->dev_str); | |
ccd979bd MF |
2407 | } |
2408 | ||
c271c5c2 SM |
2409 | local = ocfs2_mount_local(osb); |
2410 | ||
ccd979bd | 2411 | /* will play back anything left in the journal. */ |
539d8264 | 2412 | status = ocfs2_journal_load(osb->journal, local, dirty); |
01af4820 WW |
2413 | if (status < 0) { |
2414 | mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); | |
2415 | goto finally; | |
2416 | } | |
ccd979bd | 2417 | |
1dfeb768 | 2418 | if (osb->s_mount_opt & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) |
2419 | jbd2_journal_set_features(osb->journal->j_journal, | |
2420 | JBD2_FEATURE_COMPAT_CHECKSUM, 0, | |
2421 | JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); | |
2422 | else | |
2423 | jbd2_journal_clear_features(osb->journal->j_journal, | |
2424 | JBD2_FEATURE_COMPAT_CHECKSUM, 0, | |
2425 | JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); | |
2426 | ||
ccd979bd MF |
2427 | if (dirty) { |
2428 | /* recover my local alloc if we didn't unmount cleanly. */ | |
2429 | status = ocfs2_begin_local_alloc_recovery(osb, | |
2430 | osb->slot_num, | |
2431 | &local_alloc); | |
2432 | if (status < 0) { | |
2433 | mlog_errno(status); | |
2434 | goto finally; | |
2435 | } | |
2436 | /* we complete the recovery process after we've marked | |
2437 | * ourselves as mounted. */ | |
2438 | } | |
2439 | ||
ccd979bd MF |
2440 | status = ocfs2_load_local_alloc(osb); |
2441 | if (status < 0) { | |
2442 | mlog_errno(status); | |
2443 | goto finally; | |
2444 | } | |
2445 | ||
2446 | if (dirty) { | |
2447 | /* Recovery will be completed after we've mounted the | |
2448 | * rest of the volume. */ | |
ccd979bd MF |
2449 | osb->local_alloc_copy = local_alloc; |
2450 | local_alloc = NULL; | |
2451 | } | |
2452 | ||
2453 | /* go through each journal, trylock it and if you get the | |
2454 | * lock, and it's marked as dirty, set the bit in the recover | |
2455 | * map and launch a recovery thread for it. */ | |
2456 | status = ocfs2_mark_dead_nodes(osb); | |
9140db04 SE |
2457 | if (status < 0) { |
2458 | mlog_errno(status); | |
2459 | goto finally; | |
2460 | } | |
2461 | ||
2462 | status = ocfs2_compute_replay_slots(osb); | |
ccd979bd MF |
2463 | if (status < 0) |
2464 | mlog_errno(status); | |
2465 | ||
2466 | finally: | |
d787ab09 | 2467 | kfree(local_alloc); |
ccd979bd | 2468 | |
c1e8d35e TM |
2469 | if (status) |
2470 | mlog_errno(status); | |
ccd979bd MF |
2471 | return status; |
2472 | } | |
2473 | ||
2474 | /* | |
2475 | * The routine gets called from dismount or close whenever a dismount on | |
2476 | * volume is requested and the osb open count becomes 1. | |
2477 | * It will remove the osb from the global list and also free up all the | |
2478 | * initialized resources and fileobject. | |
2479 | */ | |
2480 | static void ocfs2_delete_osb(struct ocfs2_super *osb) | |
2481 | { | |
ccd979bd MF |
2482 | /* This function assumes that the caller has the main osb resource */ |
2483 | ||
35ddf78e | 2484 | /* ocfs2_initializer_super have already created this workqueue */ |
23e0813a | 2485 | if (osb->ocfs2_wq) |
35ddf78e | 2486 | destroy_workqueue(osb->ocfs2_wq); |
35ddf78e | 2487 | |
8e8a4603 | 2488 | ocfs2_free_slot_info(osb); |
ccd979bd | 2489 | |
b4df6ed8 | 2490 | kfree(osb->osb_orphan_wipes); |
539d8264 | 2491 | kfree(osb->slot_recovery_generations); |
ccd979bd MF |
2492 | /* FIXME |
2493 | * This belongs in journal shutdown, but because we have to | |
421f91d2 | 2494 | * allocate osb->journal at the start of ocfs2_initialize_osb(), |
ccd979bd MF |
2495 | * we free it here. |
2496 | */ | |
2497 | kfree(osb->journal); | |
d787ab09 | 2498 | kfree(osb->local_alloc_copy); |
ccd979bd | 2499 | kfree(osb->uuid_str); |
f13a568e | 2500 | kfree(osb->vol_label); |
ccd979bd MF |
2501 | ocfs2_put_dlm_debug(osb->osb_dlm_debug); |
2502 | memset(osb, 0, sizeof(struct ocfs2_super)); | |
ccd979bd MF |
2503 | } |
2504 | ||
7d0fb914 GR |
2505 | /* Depending on the mount option passed, perform one of the following: |
2506 | * Put OCFS2 into a readonly state (default) | |
2507 | * Return EIO so that only the process errs | |
2508 | * Fix the error as if fsck.ocfs2 -y | |
2509 | * panic | |
2510 | */ | |
2511 | static int ocfs2_handle_error(struct super_block *sb) | |
ccd979bd MF |
2512 | { |
2513 | struct ocfs2_super *osb = OCFS2_SB(sb); | |
7d0fb914 | 2514 | int rv = 0; |
ccd979bd MF |
2515 | |
2516 | ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); | |
7d0fb914 GR |
2517 | pr_crit("On-disk corruption discovered. " |
2518 | "Please run fsck.ocfs2 once the filesystem is unmounted.\n"); | |
ccd979bd | 2519 | |
7d0fb914 GR |
2520 | if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) { |
2521 | panic("OCFS2: (device %s): panic forced after error\n", | |
2522 | sb->s_id); | |
2523 | } else if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_CONT) { | |
2524 | pr_crit("OCFS2: Returning error to the calling process.\n"); | |
2525 | rv = -EIO; | |
2526 | } else { /* default option */ | |
2527 | rv = -EROFS; | |
bc98a42c | 2528 | if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb))) |
7d0fb914 GR |
2529 | return rv; |
2530 | ||
2531 | pr_crit("OCFS2: File system is now read-only.\n"); | |
1751e8a6 | 2532 | sb->s_flags |= SB_RDONLY; |
7d0fb914 GR |
2533 | ocfs2_set_ro_flag(osb, 0); |
2534 | } | |
2535 | ||
2536 | return rv; | |
ccd979bd MF |
2537 | } |
2538 | ||
7d0fb914 | 2539 | int __ocfs2_error(struct super_block *sb, const char *function, |
1543306e | 2540 | const char *fmt, ...) |
ccd979bd | 2541 | { |
1543306e | 2542 | struct va_format vaf; |
ccd979bd MF |
2543 | va_list args; |
2544 | ||
2545 | va_start(args, fmt); | |
1543306e JP |
2546 | vaf.fmt = fmt; |
2547 | vaf.va = &args; | |
ccd979bd MF |
2548 | |
2549 | /* Not using mlog here because we want to show the actual | |
2550 | * function the error came from. */ | |
7ecef14a | 2551 | printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %pV", |
1543306e JP |
2552 | sb->s_id, function, &vaf); |
2553 | ||
2554 | va_end(args); | |
ccd979bd | 2555 | |
7d0fb914 | 2556 | return ocfs2_handle_error(sb); |
ccd979bd MF |
2557 | } |
2558 | ||
2559 | /* Handle critical errors. This is intentionally more drastic than | |
2560 | * ocfs2_handle_error, so we only use for things like journal errors, | |
2561 | * etc. */ | |
1543306e | 2562 | void __ocfs2_abort(struct super_block *sb, const char *function, |
ccd979bd MF |
2563 | const char *fmt, ...) |
2564 | { | |
1543306e | 2565 | struct va_format vaf; |
ccd979bd MF |
2566 | va_list args; |
2567 | ||
2568 | va_start(args, fmt); | |
ccd979bd | 2569 | |
1543306e JP |
2570 | vaf.fmt = fmt; |
2571 | vaf.va = &args; | |
2572 | ||
7ecef14a | 2573 | printk(KERN_CRIT "OCFS2: abort (device %s): %s: %pV", |
1543306e JP |
2574 | sb->s_id, function, &vaf); |
2575 | ||
2576 | va_end(args); | |
ccd979bd MF |
2577 | |
2578 | /* We don't have the cluster support yet to go straight to | |
2579 | * hard readonly in here. Until then, we want to keep | |
2580 | * ocfs2_abort() so that we can at least mark critical | |
2581 | * errors. | |
2582 | * | |
2583 | * TODO: This should abort the journal and alert other nodes | |
2584 | * that our slot needs recovery. */ | |
2585 | ||
2586 | /* Force a panic(). This stinks, but it's better than letting | |
2587 | * things continue without having a proper hard readonly | |
2588 | * here. */ | |
a2f2ddbf SM |
2589 | if (!ocfs2_mount_local(OCFS2_SB(sb))) |
2590 | OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; | |
ccd979bd MF |
2591 | ocfs2_handle_error(sb); |
2592 | } | |
2593 | ||
e4b963f1 JB |
2594 | /* |
2595 | * Void signal blockers, because in-kernel sigprocmask() only fails | |
2596 | * when SIG_* is wrong. | |
2597 | */ | |
2598 | void ocfs2_block_signals(sigset_t *oldset) | |
2599 | { | |
2600 | int rc; | |
2601 | sigset_t blocked; | |
2602 | ||
2603 | sigfillset(&blocked); | |
2604 | rc = sigprocmask(SIG_BLOCK, &blocked, oldset); | |
2605 | BUG_ON(rc); | |
2606 | } | |
2607 | ||
2608 | void ocfs2_unblock_signals(sigset_t *oldset) | |
2609 | { | |
2610 | int rc = sigprocmask(SIG_SETMASK, oldset, NULL); | |
2611 | BUG_ON(rc); | |
2612 | } | |
2613 | ||
ccd979bd MF |
2614 | module_init(ocfs2_init); |
2615 | module_exit(ocfs2_exit); |