Commit | Line | Data |
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328970de | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
fa60ce2c | 2 | /* |
ccd979bd MF |
3 | * inode.c |
4 | * | |
5 | * vfs' aops, fops, dops and iops | |
6 | * | |
7 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
ccd979bd MF |
8 | */ |
9 | ||
10 | #include <linux/fs.h> | |
11 | #include <linux/types.h> | |
ccd979bd MF |
12 | #include <linux/highmem.h> |
13 | #include <linux/pagemap.h> | |
a90714c1 | 14 | #include <linux/quotaops.h> |
cc56c33e | 15 | #include <linux/iversion.h> |
ccd979bd MF |
16 | |
17 | #include <asm/byteorder.h> | |
18 | ||
ccd979bd MF |
19 | #include <cluster/masklog.h> |
20 | ||
21 | #include "ocfs2.h" | |
22 | ||
23 | #include "alloc.h" | |
9b7895ef | 24 | #include "dir.h" |
d6b32bbb | 25 | #include "blockcheck.h" |
ccd979bd MF |
26 | #include "dlmglue.h" |
27 | #include "extent_map.h" | |
28 | #include "file.h" | |
b4df6ed8 | 29 | #include "heartbeat.h" |
ccd979bd MF |
30 | #include "inode.h" |
31 | #include "journal.h" | |
32 | #include "namei.h" | |
33 | #include "suballoc.h" | |
34 | #include "super.h" | |
35 | #include "symlink.h" | |
36 | #include "sysfile.h" | |
37 | #include "uptodate.h" | |
cf1d6c76 | 38 | #include "xattr.h" |
8b2c0dba | 39 | #include "refcounttree.h" |
64f3b269 | 40 | #include "ocfs2_trace.h" |
d56a8f32 | 41 | #include "filecheck.h" |
ccd979bd MF |
42 | |
43 | #include "buffer_head_io.h" | |
44 | ||
ccd979bd MF |
45 | struct ocfs2_find_inode_args |
46 | { | |
47 | u64 fi_blkno; | |
48 | unsigned long fi_ino; | |
49 | unsigned int fi_flags; | |
5fa0613e | 50 | unsigned int fi_sysfile_type; |
ccd979bd MF |
51 | }; |
52 | ||
5fa0613e JK |
53 | static struct lock_class_key ocfs2_sysfile_lock_key[NUM_SYSTEM_INODES]; |
54 | ||
ccd979bd MF |
55 | static int ocfs2_read_locked_inode(struct inode *inode, |
56 | struct ocfs2_find_inode_args *args); | |
57 | static int ocfs2_init_locked_inode(struct inode *inode, void *opaque); | |
58 | static int ocfs2_find_actor(struct inode *inode, void *opaque); | |
59 | static int ocfs2_truncate_for_delete(struct ocfs2_super *osb, | |
60 | struct inode *inode, | |
61 | struct buffer_head *fe_bh); | |
62 | ||
d56a8f32 GH |
63 | static int ocfs2_filecheck_read_inode_block_full(struct inode *inode, |
64 | struct buffer_head **bh, | |
65 | int flags, int type); | |
66 | static int ocfs2_filecheck_validate_inode_block(struct super_block *sb, | |
67 | struct buffer_head *bh); | |
68 | static int ocfs2_filecheck_repair_inode_block(struct super_block *sb, | |
69 | struct buffer_head *bh); | |
70 | ||
ca4d147e HP |
71 | void ocfs2_set_inode_flags(struct inode *inode) |
72 | { | |
73 | unsigned int flags = OCFS2_I(inode)->ip_attr; | |
74 | ||
75 | inode->i_flags &= ~(S_IMMUTABLE | | |
76 | S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); | |
77 | ||
78 | if (flags & OCFS2_IMMUTABLE_FL) | |
79 | inode->i_flags |= S_IMMUTABLE; | |
80 | ||
81 | if (flags & OCFS2_SYNC_FL) | |
82 | inode->i_flags |= S_SYNC; | |
83 | if (flags & OCFS2_APPEND_FL) | |
84 | inode->i_flags |= S_APPEND; | |
85 | if (flags & OCFS2_NOATIME_FL) | |
86 | inode->i_flags |= S_NOATIME; | |
87 | if (flags & OCFS2_DIRSYNC_FL) | |
88 | inode->i_flags |= S_DIRSYNC; | |
89 | } | |
90 | ||
6e4b0d56 JK |
91 | /* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */ |
92 | void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi) | |
93 | { | |
94 | unsigned int flags = oi->vfs_inode.i_flags; | |
95 | ||
96 | oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL| | |
97 | OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL); | |
98 | if (flags & S_SYNC) | |
99 | oi->ip_attr |= OCFS2_SYNC_FL; | |
100 | if (flags & S_APPEND) | |
101 | oi->ip_attr |= OCFS2_APPEND_FL; | |
102 | if (flags & S_IMMUTABLE) | |
103 | oi->ip_attr |= OCFS2_IMMUTABLE_FL; | |
104 | if (flags & S_NOATIME) | |
105 | oi->ip_attr |= OCFS2_NOATIME_FL; | |
106 | if (flags & S_DIRSYNC) | |
107 | oi->ip_attr |= OCFS2_DIRSYNC_FL; | |
108 | } | |
109 | ||
6ca497a8 | 110 | struct inode *ocfs2_ilookup(struct super_block *sb, u64 blkno) |
111 | { | |
112 | struct ocfs2_find_inode_args args; | |
113 | ||
114 | args.fi_blkno = blkno; | |
115 | args.fi_flags = 0; | |
116 | args.fi_ino = ino_from_blkno(sb, blkno); | |
117 | args.fi_sysfile_type = 0; | |
118 | ||
119 | return ilookup5(sb, blkno, ocfs2_find_actor, &args); | |
120 | } | |
5fa0613e JK |
121 | struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags, |
122 | int sysfile_type) | |
ccd979bd | 123 | { |
8c4d5a43 | 124 | int rc = -ESTALE; |
ccd979bd MF |
125 | struct inode *inode = NULL; |
126 | struct super_block *sb = osb->sb; | |
127 | struct ocfs2_find_inode_args args; | |
bb20b31d | 128 | journal_t *journal = osb->journal->j_journal; |
ccd979bd | 129 | |
64f3b269 TM |
130 | trace_ocfs2_iget_begin((unsigned long long)blkno, flags, |
131 | sysfile_type); | |
ccd979bd MF |
132 | |
133 | /* Ok. By now we've either got the offsets passed to us by the | |
134 | * caller, or we just pulled them off the bh. Lets do some | |
135 | * sanity checks to make sure they're OK. */ | |
136 | if (blkno == 0) { | |
137 | inode = ERR_PTR(-EINVAL); | |
138 | mlog_errno(PTR_ERR(inode)); | |
139 | goto bail; | |
140 | } | |
141 | ||
142 | args.fi_blkno = blkno; | |
24c19ef4 | 143 | args.fi_flags = flags; |
ccd979bd | 144 | args.fi_ino = ino_from_blkno(sb, blkno); |
5fa0613e | 145 | args.fi_sysfile_type = sysfile_type; |
ccd979bd MF |
146 | |
147 | inode = iget5_locked(sb, args.fi_ino, ocfs2_find_actor, | |
148 | ocfs2_init_locked_inode, &args); | |
149 | /* inode was *not* in the inode cache. 2.6.x requires | |
150 | * us to do our own read_inode call and unlock it | |
151 | * afterwards. */ | |
ccd979bd MF |
152 | if (inode == NULL) { |
153 | inode = ERR_PTR(-ENOMEM); | |
154 | mlog_errno(PTR_ERR(inode)); | |
155 | goto bail; | |
156 | } | |
64f3b269 | 157 | trace_ocfs2_iget5_locked(inode->i_state); |
6218b90e | 158 | if (inode->i_state & I_NEW) { |
d56a8f32 | 159 | rc = ocfs2_read_locked_inode(inode, &args); |
6218b90e TM |
160 | unlock_new_inode(inode); |
161 | } | |
ccd979bd MF |
162 | if (is_bad_inode(inode)) { |
163 | iput(inode); | |
1f3a437f | 164 | inode = ERR_PTR(rc); |
ccd979bd MF |
165 | goto bail; |
166 | } | |
167 | ||
2931cdcb DW |
168 | /* |
169 | * Set transaction id's of transactions that have to be committed | |
170 | * to finish f[data]sync. We set them to currently running transaction | |
171 | * as we cannot be sure that the inode or some of its metadata isn't | |
172 | * part of the transaction - the inode could have been reclaimed and | |
173 | * now it is reread from disk. | |
174 | */ | |
bb20b31d | 175 | if (journal) { |
2931cdcb DW |
176 | transaction_t *transaction; |
177 | tid_t tid; | |
178 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
179 | ||
180 | read_lock(&journal->j_state_lock); | |
181 | if (journal->j_running_transaction) | |
182 | transaction = journal->j_running_transaction; | |
183 | else | |
184 | transaction = journal->j_committing_transaction; | |
185 | if (transaction) | |
186 | tid = transaction->t_tid; | |
187 | else | |
188 | tid = journal->j_commit_sequence; | |
189 | read_unlock(&journal->j_state_lock); | |
190 | oi->i_sync_tid = tid; | |
191 | oi->i_datasync_tid = tid; | |
192 | } | |
193 | ||
ccd979bd MF |
194 | bail: |
195 | if (!IS_ERR(inode)) { | |
64f3b269 TM |
196 | trace_ocfs2_iget_end(inode, |
197 | (unsigned long long)OCFS2_I(inode)->ip_blkno); | |
6a1bd4a5 | 198 | } |
ccd979bd MF |
199 | |
200 | return inode; | |
201 | } | |
202 | ||
203 | ||
204 | /* | |
205 | * here's how inodes get read from disk: | |
206 | * iget5_locked -> find_actor -> OCFS2_FIND_ACTOR | |
207 | * found? : return the in-memory inode | |
208 | * not found? : get_new_inode -> OCFS2_INIT_LOCKED_INODE | |
209 | */ | |
210 | ||
211 | static int ocfs2_find_actor(struct inode *inode, void *opaque) | |
212 | { | |
213 | struct ocfs2_find_inode_args *args = NULL; | |
214 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
215 | int ret = 0; | |
216 | ||
ccd979bd MF |
217 | args = opaque; |
218 | ||
219 | mlog_bug_on_msg(!inode, "No inode in find actor!\n"); | |
220 | ||
64f3b269 TM |
221 | trace_ocfs2_find_actor(inode, inode->i_ino, opaque, args->fi_blkno); |
222 | ||
ccd979bd MF |
223 | if (oi->ip_blkno != args->fi_blkno) |
224 | goto bail; | |
225 | ||
ccd979bd MF |
226 | ret = 1; |
227 | bail: | |
ccd979bd MF |
228 | return ret; |
229 | } | |
230 | ||
231 | /* | |
232 | * initialize the new inode, but don't do anything that would cause | |
233 | * us to sleep. | |
234 | * return 0 on success, 1 on failure | |
235 | */ | |
236 | static int ocfs2_init_locked_inode(struct inode *inode, void *opaque) | |
237 | { | |
238 | struct ocfs2_find_inode_args *args = opaque; | |
cb25797d JK |
239 | static struct lock_class_key ocfs2_quota_ip_alloc_sem_key, |
240 | ocfs2_file_ip_alloc_sem_key; | |
ccd979bd | 241 | |
ccd979bd MF |
242 | inode->i_ino = args->fi_ino; |
243 | OCFS2_I(inode)->ip_blkno = args->fi_blkno; | |
5fa0613e | 244 | if (args->fi_sysfile_type != 0) |
9902af79 | 245 | lockdep_set_class(&inode->i_rwsem, |
5fa0613e | 246 | &ocfs2_sysfile_lock_key[args->fi_sysfile_type]); |
cb25797d JK |
247 | if (args->fi_sysfile_type == USER_QUOTA_SYSTEM_INODE || |
248 | args->fi_sysfile_type == GROUP_QUOTA_SYSTEM_INODE || | |
249 | args->fi_sysfile_type == LOCAL_USER_QUOTA_SYSTEM_INODE || | |
250 | args->fi_sysfile_type == LOCAL_GROUP_QUOTA_SYSTEM_INODE) | |
251 | lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem, | |
252 | &ocfs2_quota_ip_alloc_sem_key); | |
253 | else | |
254 | lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem, | |
255 | &ocfs2_file_ip_alloc_sem_key); | |
ccd979bd | 256 | |
ccd979bd MF |
257 | return 0; |
258 | } | |
259 | ||
b657c95c JB |
260 | void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, |
261 | int create_ino) | |
ccd979bd MF |
262 | { |
263 | struct super_block *sb; | |
264 | struct ocfs2_super *osb; | |
53da4939 | 265 | int use_plocks = 1; |
ccd979bd | 266 | |
ccd979bd MF |
267 | sb = inode->i_sb; |
268 | osb = OCFS2_SB(sb); | |
269 | ||
53da4939 MF |
270 | if ((osb->s_mount_opt & OCFS2_MOUNT_LOCALFLOCKS) || |
271 | ocfs2_mount_local(osb) || !ocfs2_stack_supports_plocks()) | |
272 | use_plocks = 0; | |
273 | ||
b657c95c JB |
274 | /* |
275 | * These have all been checked by ocfs2_read_inode_block() or set | |
276 | * by ocfs2_mknod_locked(), so a failure is a code bug. | |
277 | */ | |
278 | BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); /* This means that read_inode | |
279 | cannot create a superblock | |
280 | inode today. change if | |
281 | that is needed. */ | |
282 | BUG_ON(!(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL))); | |
283 | BUG_ON(le32_to_cpu(fe->i_fs_generation) != osb->fs_generation); | |
ccd979bd | 284 | |
ccd979bd | 285 | |
8110b073 MF |
286 | OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); |
287 | OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); | |
15b1e36b | 288 | OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); |
8110b073 | 289 | |
cc56c33e | 290 | inode_set_iversion(inode, 1); |
ccd979bd MF |
291 | inode->i_generation = le32_to_cpu(fe->i_generation); |
292 | inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); | |
293 | inode->i_mode = le16_to_cpu(fe->i_mode); | |
2c034176 EB |
294 | i_uid_write(inode, le32_to_cpu(fe->i_uid)); |
295 | i_gid_write(inode, le32_to_cpu(fe->i_gid)); | |
ccd979bd MF |
296 | |
297 | /* Fast symlinks will have i_size but no allocated clusters. */ | |
ea022dfb | 298 | if (S_ISLNK(inode->i_mode) && !fe->i_clusters) { |
ccd979bd | 299 | inode->i_blocks = 0; |
ea022dfb AV |
300 | inode->i_mapping->a_ops = &ocfs2_fast_symlink_aops; |
301 | } else { | |
8110b073 | 302 | inode->i_blocks = ocfs2_inode_sector_count(inode); |
ea022dfb AV |
303 | inode->i_mapping->a_ops = &ocfs2_aops; |
304 | } | |
fd6acbbc JL |
305 | inode_set_atime(inode, le64_to_cpu(fe->i_atime), |
306 | le32_to_cpu(fe->i_atime_nsec)); | |
307 | inode_set_mtime(inode, le64_to_cpu(fe->i_mtime), | |
308 | le32_to_cpu(fe->i_mtime_nsec)); | |
6861de97 JL |
309 | inode_set_ctime(inode, le64_to_cpu(fe->i_ctime), |
310 | le32_to_cpu(fe->i_ctime_nsec)); | |
ccd979bd MF |
311 | |
312 | if (OCFS2_I(inode)->ip_blkno != le64_to_cpu(fe->i_blkno)) | |
313 | mlog(ML_ERROR, | |
b0697053 MF |
314 | "ip_blkno %llu != i_blkno %llu!\n", |
315 | (unsigned long long)OCFS2_I(inode)->ip_blkno, | |
1ca1a111 | 316 | (unsigned long long)le64_to_cpu(fe->i_blkno)); |
ccd979bd | 317 | |
bfe86848 | 318 | set_nlink(inode, ocfs2_read_links_count(fe)); |
ccd979bd | 319 | |
64f3b269 TM |
320 | trace_ocfs2_populate_inode(OCFS2_I(inode)->ip_blkno, |
321 | le32_to_cpu(fe->i_flags)); | |
bbbd0eb3 | 322 | if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) { |
24c19ef4 | 323 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE; |
bbbd0eb3 JK |
324 | inode->i_flags |= S_NOQUOTA; |
325 | } | |
64f3b269 | 326 | |
ccd979bd MF |
327 | if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) { |
328 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; | |
ccd979bd MF |
329 | } else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) { |
330 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; | |
1a224ad1 JK |
331 | } else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) { |
332 | inode->i_flags |= S_NOQUOTA; | |
ccd979bd | 333 | } else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) { |
ccd979bd MF |
334 | /* we can't actually hit this as read_inode can't |
335 | * handle superblocks today ;-) */ | |
336 | BUG(); | |
337 | } | |
338 | ||
339 | switch (inode->i_mode & S_IFMT) { | |
340 | case S_IFREG: | |
53da4939 MF |
341 | if (use_plocks) |
342 | inode->i_fop = &ocfs2_fops; | |
343 | else | |
344 | inode->i_fop = &ocfs2_fops_no_plocks; | |
ccd979bd MF |
345 | inode->i_op = &ocfs2_file_iops; |
346 | i_size_write(inode, le64_to_cpu(fe->i_size)); | |
347 | break; | |
348 | case S_IFDIR: | |
349 | inode->i_op = &ocfs2_dir_iops; | |
53da4939 MF |
350 | if (use_plocks) |
351 | inode->i_fop = &ocfs2_dops; | |
352 | else | |
353 | inode->i_fop = &ocfs2_dops_no_plocks; | |
ccd979bd | 354 | i_size_write(inode, le64_to_cpu(fe->i_size)); |
5e98d492 | 355 | OCFS2_I(inode)->ip_dir_lock_gen = 1; |
ccd979bd MF |
356 | break; |
357 | case S_IFLNK: | |
ea022dfb | 358 | inode->i_op = &ocfs2_symlink_inode_operations; |
21fc61c7 | 359 | inode_nohighmem(inode); |
ccd979bd MF |
360 | i_size_write(inode, le64_to_cpu(fe->i_size)); |
361 | break; | |
362 | default: | |
363 | inode->i_op = &ocfs2_special_file_iops; | |
364 | init_special_inode(inode, inode->i_mode, | |
365 | inode->i_rdev); | |
366 | break; | |
367 | } | |
368 | ||
24c19ef4 MF |
369 | if (create_ino) { |
370 | inode->i_ino = ino_from_blkno(inode->i_sb, | |
371 | le64_to_cpu(fe->i_blkno)); | |
372 | ||
373 | /* | |
374 | * If we ever want to create system files from kernel, | |
375 | * the generation argument to | |
376 | * ocfs2_inode_lock_res_init() will have to change. | |
377 | */ | |
1ca1a111 | 378 | BUG_ON(le32_to_cpu(fe->i_flags) & OCFS2_SYSTEM_FL); |
24c19ef4 | 379 | |
e63aecb6 | 380 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, |
24c19ef4 | 381 | OCFS2_LOCK_TYPE_META, 0, inode); |
50008630 TY |
382 | |
383 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, | |
384 | OCFS2_LOCK_TYPE_OPEN, 0, inode); | |
24c19ef4 MF |
385 | } |
386 | ||
ccd979bd | 387 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_rw_lockres, |
24c19ef4 MF |
388 | OCFS2_LOCK_TYPE_RW, inode->i_generation, |
389 | inode); | |
390 | ||
ca4d147e | 391 | ocfs2_set_inode_flags(inode); |
ca4d147e | 392 | |
13821151 TM |
393 | OCFS2_I(inode)->ip_last_used_slot = 0; |
394 | OCFS2_I(inode)->ip_last_used_group = 0; | |
e3b4a97d MF |
395 | |
396 | if (S_ISDIR(inode->i_mode)) | |
397 | ocfs2_resv_set_type(&OCFS2_I(inode)->ip_la_data_resv, | |
398 | OCFS2_RESV_FLAG_DIR); | |
ccd979bd MF |
399 | } |
400 | ||
401 | static int ocfs2_read_locked_inode(struct inode *inode, | |
402 | struct ocfs2_find_inode_args *args) | |
403 | { | |
404 | struct super_block *sb; | |
405 | struct ocfs2_super *osb; | |
406 | struct ocfs2_dinode *fe; | |
407 | struct buffer_head *bh = NULL; | |
d56a8f32 | 408 | int status, can_lock, lock_level = 0; |
24c19ef4 | 409 | u32 generation = 0; |
ccd979bd | 410 | |
ccd979bd | 411 | status = -EINVAL; |
ccd979bd MF |
412 | sb = inode->i_sb; |
413 | osb = OCFS2_SB(sb); | |
414 | ||
24c19ef4 MF |
415 | /* |
416 | * To improve performance of cold-cache inode stats, we take | |
417 | * the cluster lock here if possible. | |
418 | * | |
419 | * Generally, OCFS2 never trusts the contents of an inode | |
420 | * unless it's holding a cluster lock, so taking it here isn't | |
421 | * a correctness issue as much as it is a performance | |
422 | * improvement. | |
423 | * | |
424 | * There are three times when taking the lock is not a good idea: | |
425 | * | |
426 | * 1) During startup, before we have initialized the DLM. | |
427 | * | |
428 | * 2) If we are reading certain system files which never get | |
429 | * cluster locks (local alloc, truncate log). | |
430 | * | |
431 | * 3) If the process doing the iget() is responsible for | |
432 | * orphan dir recovery. We're holding the orphan dir lock and | |
433 | * can get into a deadlock with another process on another | |
434 | * node in ->delete_inode(). | |
435 | * | |
436 | * #1 and #2 can be simply solved by never taking the lock | |
437 | * here for system files (which are the only type we read | |
438 | * during mount). It's a heavier approach, but our main | |
b595076a | 439 | * concern is user-accessible files anyway. |
24c19ef4 MF |
440 | * |
441 | * #3 works itself out because we'll eventually take the | |
442 | * cluster lock before trusting anything anyway. | |
443 | */ | |
444 | can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE) | |
50008630 | 445 | && !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) |
c271c5c2 | 446 | && !ocfs2_mount_local(osb); |
24c19ef4 | 447 | |
64f3b269 TM |
448 | trace_ocfs2_read_locked_inode( |
449 | (unsigned long long)OCFS2_I(inode)->ip_blkno, can_lock); | |
450 | ||
24c19ef4 MF |
451 | /* |
452 | * To maintain backwards compatibility with older versions of | |
453 | * ocfs2-tools, we still store the generation value for system | |
454 | * files. The only ones that actually matter to userspace are | |
455 | * the journals, but it's easier and inexpensive to just flag | |
456 | * all system files similarly. | |
457 | */ | |
458 | if (args->fi_flags & OCFS2_FI_FLAG_SYSFILE) | |
459 | generation = osb->fs_generation; | |
460 | ||
e63aecb6 | 461 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, |
24c19ef4 MF |
462 | OCFS2_LOCK_TYPE_META, |
463 | generation, inode); | |
464 | ||
50008630 TY |
465 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, |
466 | OCFS2_LOCK_TYPE_OPEN, | |
467 | 0, inode); | |
468 | ||
24c19ef4 | 469 | if (can_lock) { |
50008630 TY |
470 | status = ocfs2_open_lock(inode); |
471 | if (status) { | |
472 | make_bad_inode(inode); | |
473 | mlog_errno(status); | |
474 | return status; | |
475 | } | |
d56a8f32 | 476 | status = ocfs2_inode_lock(inode, NULL, lock_level); |
24c19ef4 MF |
477 | if (status) { |
478 | make_bad_inode(inode); | |
479 | mlog_errno(status); | |
480 | return status; | |
481 | } | |
ccd979bd MF |
482 | } |
483 | ||
50008630 TY |
484 | if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) { |
485 | status = ocfs2_try_open_lock(inode, 0); | |
486 | if (status) { | |
2bd63216 | 487 | make_bad_inode(inode); |
50008630 TY |
488 | return status; |
489 | } | |
490 | } | |
491 | ||
b657c95c | 492 | if (can_lock) { |
d56a8f32 GH |
493 | if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_CHK) |
494 | status = ocfs2_filecheck_read_inode_block_full(inode, | |
495 | &bh, OCFS2_BH_IGNORE_CACHE, 0); | |
496 | else if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_FIX) | |
497 | status = ocfs2_filecheck_read_inode_block_full(inode, | |
498 | &bh, OCFS2_BH_IGNORE_CACHE, 1); | |
499 | else | |
500 | status = ocfs2_read_inode_block_full(inode, | |
501 | &bh, OCFS2_BH_IGNORE_CACHE); | |
b657c95c | 502 | } else { |
da1e9098 | 503 | status = ocfs2_read_blocks_sync(osb, args->fi_blkno, 1, &bh); |
f5ce5a08 SM |
504 | /* |
505 | * If buffer is in jbd, then its checksum may not have been | |
506 | * computed as yet. | |
507 | */ | |
d56a8f32 GH |
508 | if (!status && !buffer_jbd(bh)) { |
509 | if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_CHK) | |
510 | status = ocfs2_filecheck_validate_inode_block( | |
511 | osb->sb, bh); | |
512 | else if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_FIX) | |
513 | status = ocfs2_filecheck_repair_inode_block( | |
514 | osb->sb, bh); | |
515 | else | |
516 | status = ocfs2_validate_inode_block( | |
517 | osb->sb, bh); | |
518 | } | |
b657c95c | 519 | } |
ccd979bd MF |
520 | if (status < 0) { |
521 | mlog_errno(status); | |
ccd979bd MF |
522 | goto bail; |
523 | } | |
524 | ||
24c19ef4 | 525 | status = -EINVAL; |
ccd979bd | 526 | fe = (struct ocfs2_dinode *) bh->b_data; |
ccd979bd | 527 | |
24c19ef4 MF |
528 | /* |
529 | * This is a code bug. Right now the caller needs to | |
530 | * understand whether it is asking for a system file inode or | |
531 | * not so the proper lock names can be built. | |
532 | */ | |
533 | mlog_bug_on_msg(!!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) != | |
534 | !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE), | |
1c3ce541 | 535 | "Inode %llu: system file state is ambiguous\n", |
24c19ef4 | 536 | (unsigned long long)args->fi_blkno); |
ccd979bd MF |
537 | |
538 | if (S_ISCHR(le16_to_cpu(fe->i_mode)) || | |
539 | S_ISBLK(le16_to_cpu(fe->i_mode))) | |
b657c95c | 540 | inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); |
ccd979bd | 541 | |
b657c95c | 542 | ocfs2_populate_inode(inode, fe, 0); |
ccd979bd MF |
543 | |
544 | BUG_ON(args->fi_blkno != le64_to_cpu(fe->i_blkno)); | |
545 | ||
d56a8f32 GH |
546 | if (buffer_dirty(bh) && !buffer_jbd(bh)) { |
547 | if (can_lock) { | |
548 | ocfs2_inode_unlock(inode, lock_level); | |
549 | lock_level = 1; | |
550 | ocfs2_inode_lock(inode, NULL, lock_level); | |
551 | } | |
552 | status = ocfs2_write_block(osb, bh, INODE_CACHE(inode)); | |
553 | if (status < 0) { | |
554 | mlog_errno(status); | |
555 | goto bail; | |
556 | } | |
557 | } | |
558 | ||
ccd979bd MF |
559 | status = 0; |
560 | ||
561 | bail: | |
24c19ef4 | 562 | if (can_lock) |
d56a8f32 | 563 | ocfs2_inode_unlock(inode, lock_level); |
24c19ef4 MF |
564 | |
565 | if (status < 0) | |
566 | make_bad_inode(inode); | |
567 | ||
4a635a11 | 568 | brelse(bh); |
ccd979bd | 569 | |
ccd979bd MF |
570 | return status; |
571 | } | |
572 | ||
573 | void ocfs2_sync_blockdev(struct super_block *sb) | |
574 | { | |
575 | sync_blockdev(sb->s_bdev); | |
576 | } | |
577 | ||
578 | static int ocfs2_truncate_for_delete(struct ocfs2_super *osb, | |
579 | struct inode *inode, | |
580 | struct buffer_head *fe_bh) | |
581 | { | |
582 | int status = 0; | |
ccd979bd | 583 | struct ocfs2_dinode *fe; |
60b11392 | 584 | handle_t *handle = NULL; |
ccd979bd | 585 | |
ccd979bd MF |
586 | fe = (struct ocfs2_dinode *) fe_bh->b_data; |
587 | ||
1afc32b9 MF |
588 | /* |
589 | * This check will also skip truncate of inodes with inline | |
590 | * data and fast symlinks. | |
591 | */ | |
3a0782d0 | 592 | if (fe->i_clusters) { |
2b4e30fb JB |
593 | if (ocfs2_should_order_data(inode)) |
594 | ocfs2_begin_ordered_truncate(inode, 0); | |
595 | ||
60b11392 MF |
596 | handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS); |
597 | if (IS_ERR(handle)) { | |
598 | status = PTR_ERR(handle); | |
0350cb07 | 599 | handle = NULL; |
60b11392 MF |
600 | mlog_errno(status); |
601 | goto out; | |
602 | } | |
603 | ||
0cf2f763 JB |
604 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), |
605 | fe_bh, | |
13723d00 | 606 | OCFS2_JOURNAL_ACCESS_WRITE); |
60b11392 MF |
607 | if (status < 0) { |
608 | mlog_errno(status); | |
609 | goto out; | |
610 | } | |
611 | ||
612 | i_size_write(inode, 0); | |
613 | ||
614 | status = ocfs2_mark_inode_dirty(handle, inode, fe_bh); | |
615 | if (status < 0) { | |
616 | mlog_errno(status); | |
617 | goto out; | |
618 | } | |
619 | ||
620 | ocfs2_commit_trans(osb, handle); | |
621 | handle = NULL; | |
622 | ||
78f94673 | 623 | status = ocfs2_commit_truncate(osb, inode, fe_bh); |
229ba1f8 | 624 | if (status < 0) |
3a0782d0 | 625 | mlog_errno(status); |
ccd979bd | 626 | } |
ccd979bd | 627 | |
60b11392 MF |
628 | out: |
629 | if (handle) | |
630 | ocfs2_commit_trans(osb, handle); | |
ccd979bd MF |
631 | return status; |
632 | } | |
633 | ||
634 | static int ocfs2_remove_inode(struct inode *inode, | |
635 | struct buffer_head *di_bh, | |
636 | struct inode *orphan_dir_inode, | |
637 | struct buffer_head *orphan_dir_bh) | |
638 | { | |
639 | int status; | |
640 | struct inode *inode_alloc_inode = NULL; | |
641 | struct buffer_head *inode_alloc_bh = NULL; | |
1fabe148 | 642 | handle_t *handle; |
ccd979bd MF |
643 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
644 | struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data; | |
645 | ||
646 | inode_alloc_inode = | |
647 | ocfs2_get_system_file_inode(osb, INODE_ALLOC_SYSTEM_INODE, | |
648 | le16_to_cpu(di->i_suballoc_slot)); | |
649 | if (!inode_alloc_inode) { | |
62f8b1f0 | 650 | status = -ENOENT; |
ccd979bd MF |
651 | mlog_errno(status); |
652 | goto bail; | |
653 | } | |
654 | ||
5955102c | 655 | inode_lock(inode_alloc_inode); |
e63aecb6 | 656 | status = ocfs2_inode_lock(inode_alloc_inode, &inode_alloc_bh, 1); |
ccd979bd | 657 | if (status < 0) { |
5955102c | 658 | inode_unlock(inode_alloc_inode); |
ccd979bd MF |
659 | |
660 | mlog_errno(status); | |
661 | goto bail; | |
662 | } | |
663 | ||
a90714c1 | 664 | handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS + |
9b7895ef | 665 | ocfs2_quota_trans_credits(inode->i_sb)); |
ccd979bd MF |
666 | if (IS_ERR(handle)) { |
667 | status = PTR_ERR(handle); | |
668 | mlog_errno(status); | |
669 | goto bail_unlock; | |
670 | } | |
671 | ||
d4cd1871 LD |
672 | if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) { |
673 | status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, | |
06ee5c75 | 674 | orphan_dir_bh, false); |
d4cd1871 LD |
675 | if (status < 0) { |
676 | mlog_errno(status); | |
677 | goto bail_commit; | |
678 | } | |
ccd979bd MF |
679 | } |
680 | ||
681 | /* set the inodes dtime */ | |
0cf2f763 | 682 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh, |
13723d00 | 683 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
684 | if (status < 0) { |
685 | mlog_errno(status); | |
686 | goto bail_commit; | |
687 | } | |
688 | ||
c62c38f6 | 689 | di->i_dtime = cpu_to_le64(ktime_get_real_seconds()); |
4092d49f | 690 | di->i_flags &= cpu_to_le32(~(OCFS2_VALID_FL | OCFS2_ORPHANED_FL)); |
ec20cec7 | 691 | ocfs2_journal_dirty(handle, di_bh); |
ccd979bd | 692 | |
8cb471e8 | 693 | ocfs2_remove_from_cache(INODE_CACHE(inode), di_bh); |
63936dda | 694 | dquot_free_inode(inode); |
ccd979bd MF |
695 | |
696 | status = ocfs2_free_dinode(handle, inode_alloc_inode, | |
697 | inode_alloc_bh, di); | |
698 | if (status < 0) | |
699 | mlog_errno(status); | |
700 | ||
701 | bail_commit: | |
02dc1af4 | 702 | ocfs2_commit_trans(osb, handle); |
ccd979bd | 703 | bail_unlock: |
e63aecb6 | 704 | ocfs2_inode_unlock(inode_alloc_inode, 1); |
5955102c | 705 | inode_unlock(inode_alloc_inode); |
ccd979bd MF |
706 | brelse(inode_alloc_bh); |
707 | bail: | |
708 | iput(inode_alloc_inode); | |
709 | ||
710 | return status; | |
711 | } | |
712 | ||
2bd63216 | 713 | /* |
b4df6ed8 MF |
714 | * Serialize with orphan dir recovery. If the process doing |
715 | * recovery on this orphan dir does an iget() with the dir | |
137cebf9 | 716 | * i_rwsem held, we'll deadlock here. Instead we detect this |
b4df6ed8 MF |
717 | * and exit early - recovery will wipe this inode for us. |
718 | */ | |
719 | static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb, | |
720 | int slot) | |
721 | { | |
722 | int ret = 0; | |
723 | ||
724 | spin_lock(&osb->osb_lock); | |
725 | if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) { | |
b4df6ed8 MF |
726 | ret = -EDEADLK; |
727 | goto out; | |
728 | } | |
729 | /* This signals to the orphan recovery process that it should | |
730 | * wait for us to handle the wipe. */ | |
731 | osb->osb_orphan_wipes[slot]++; | |
732 | out: | |
733 | spin_unlock(&osb->osb_lock); | |
64f3b269 | 734 | trace_ocfs2_check_orphan_recovery_state(slot, ret); |
b4df6ed8 MF |
735 | return ret; |
736 | } | |
737 | ||
738 | static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb, | |
739 | int slot) | |
740 | { | |
741 | spin_lock(&osb->osb_lock); | |
742 | osb->osb_orphan_wipes[slot]--; | |
743 | spin_unlock(&osb->osb_lock); | |
744 | ||
745 | wake_up(&osb->osb_wipe_event); | |
746 | } | |
747 | ||
ccd979bd MF |
748 | static int ocfs2_wipe_inode(struct inode *inode, |
749 | struct buffer_head *di_bh) | |
750 | { | |
d577632e | 751 | int status, orphaned_slot = -1; |
ccd979bd MF |
752 | struct inode *orphan_dir_inode = NULL; |
753 | struct buffer_head *orphan_dir_bh = NULL; | |
754 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
d4cd1871 | 755 | struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data; |
ccd979bd | 756 | |
d4cd1871 LD |
757 | if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) { |
758 | orphaned_slot = le16_to_cpu(di->i_orphaned_slot); | |
b4df6ed8 | 759 | |
d4cd1871 LD |
760 | status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot); |
761 | if (status) | |
762 | return status; | |
b4df6ed8 | 763 | |
d4cd1871 LD |
764 | orphan_dir_inode = ocfs2_get_system_file_inode(osb, |
765 | ORPHAN_DIR_SYSTEM_INODE, | |
766 | orphaned_slot); | |
767 | if (!orphan_dir_inode) { | |
62f8b1f0 | 768 | status = -ENOENT; |
d4cd1871 LD |
769 | mlog_errno(status); |
770 | goto bail; | |
771 | } | |
ccd979bd | 772 | |
d4cd1871 LD |
773 | /* Lock the orphan dir. The lock will be held for the entire |
774 | * delete_inode operation. We do this now to avoid races with | |
775 | * recovery completion on other nodes. */ | |
5955102c | 776 | inode_lock(orphan_dir_inode); |
d4cd1871 LD |
777 | status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); |
778 | if (status < 0) { | |
5955102c | 779 | inode_unlock(orphan_dir_inode); |
ccd979bd | 780 | |
d4cd1871 LD |
781 | mlog_errno(status); |
782 | goto bail; | |
783 | } | |
ccd979bd MF |
784 | } |
785 | ||
786 | /* we do this while holding the orphan dir lock because we | |
34d024f8 MF |
787 | * don't want recovery being run from another node to try an |
788 | * inode delete underneath us -- this will result in two nodes | |
ccd979bd MF |
789 | * truncating the same file! */ |
790 | status = ocfs2_truncate_for_delete(osb, inode, di_bh); | |
791 | if (status < 0) { | |
792 | mlog_errno(status); | |
793 | goto bail_unlock_dir; | |
794 | } | |
795 | ||
9b7895ef MF |
796 | /* Remove any dir index tree */ |
797 | if (S_ISDIR(inode->i_mode)) { | |
798 | status = ocfs2_dx_dir_truncate(inode, di_bh); | |
799 | if (status) { | |
800 | mlog_errno(status); | |
801 | goto bail_unlock_dir; | |
802 | } | |
803 | } | |
804 | ||
cf1d6c76 TY |
805 | /*Free extended attribute resources associated with this inode.*/ |
806 | status = ocfs2_xattr_remove(inode, di_bh); | |
807 | if (status < 0) { | |
808 | mlog_errno(status); | |
809 | goto bail_unlock_dir; | |
810 | } | |
811 | ||
8b2c0dba TM |
812 | status = ocfs2_remove_refcount_tree(inode, di_bh); |
813 | if (status < 0) { | |
814 | mlog_errno(status); | |
815 | goto bail_unlock_dir; | |
816 | } | |
817 | ||
ccd979bd MF |
818 | status = ocfs2_remove_inode(inode, di_bh, orphan_dir_inode, |
819 | orphan_dir_bh); | |
820 | if (status < 0) | |
821 | mlog_errno(status); | |
822 | ||
823 | bail_unlock_dir: | |
d4cd1871 LD |
824 | if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR) |
825 | return status; | |
826 | ||
e63aecb6 | 827 | ocfs2_inode_unlock(orphan_dir_inode, 1); |
5955102c | 828 | inode_unlock(orphan_dir_inode); |
ccd979bd MF |
829 | brelse(orphan_dir_bh); |
830 | bail: | |
831 | iput(orphan_dir_inode); | |
b4df6ed8 | 832 | ocfs2_signal_wipe_completion(osb, orphaned_slot); |
ccd979bd MF |
833 | |
834 | return status; | |
835 | } | |
836 | ||
837 | /* There is a series of simple checks that should be done before a | |
34d024f8 | 838 | * trylock is even considered. Encapsulate those in this function. */ |
ccd979bd MF |
839 | static int ocfs2_inode_is_valid_to_delete(struct inode *inode) |
840 | { | |
841 | int ret = 0; | |
842 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
843 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
844 | ||
64f3b269 TM |
845 | trace_ocfs2_inode_is_valid_to_delete(current, osb->dc_task, |
846 | (unsigned long long)oi->ip_blkno, | |
847 | oi->ip_flags); | |
848 | ||
ccd979bd MF |
849 | /* We shouldn't be getting here for the root directory |
850 | * inode.. */ | |
851 | if (inode == osb->root_inode) { | |
852 | mlog(ML_ERROR, "Skipping delete of root inode.\n"); | |
853 | goto bail; | |
854 | } | |
855 | ||
bd62ad7a JK |
856 | /* |
857 | * If we're coming from downconvert_thread we can't go into our own | |
858 | * voting [hello, deadlock city!] so we cannot delete the inode. But | |
859 | * since we dropped last inode ref when downconverting dentry lock, | |
860 | * we cannot have the file open and thus the node doing unlink will | |
861 | * take care of deleting the inode. | |
862 | */ | |
64f3b269 | 863 | if (current == osb->dc_task) |
ccd979bd | 864 | goto bail; |
ccd979bd MF |
865 | |
866 | spin_lock(&oi->ip_lock); | |
867 | /* OCFS2 *never* deletes system files. This should technically | |
868 | * never get here as system file inodes should always have a | |
869 | * positive link count. */ | |
870 | if (oi->ip_flags & OCFS2_INODE_SYSTEM_FILE) { | |
b0697053 MF |
871 | mlog(ML_ERROR, "Skipping delete of system file %llu\n", |
872 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
873 | goto bail_unlock; |
874 | } | |
875 | ||
ccd979bd MF |
876 | ret = 1; |
877 | bail_unlock: | |
878 | spin_unlock(&oi->ip_lock); | |
879 | bail: | |
880 | return ret; | |
881 | } | |
882 | ||
883 | /* Query the cluster to determine whether we should wipe an inode from | |
884 | * disk or not. | |
885 | * | |
886 | * Requires the inode to have the cluster lock. */ | |
887 | static int ocfs2_query_inode_wipe(struct inode *inode, | |
888 | struct buffer_head *di_bh, | |
889 | int *wipe) | |
890 | { | |
64f3b269 | 891 | int status = 0, reason = 0; |
ccd979bd MF |
892 | struct ocfs2_inode_info *oi = OCFS2_I(inode); |
893 | struct ocfs2_dinode *di; | |
894 | ||
895 | *wipe = 0; | |
896 | ||
64f3b269 TM |
897 | trace_ocfs2_query_inode_wipe_begin((unsigned long long)oi->ip_blkno, |
898 | inode->i_nlink); | |
899 | ||
ccd979bd MF |
900 | /* While we were waiting for the cluster lock in |
901 | * ocfs2_delete_inode, another node might have asked to delete | |
902 | * the inode. Recheck our flags to catch this. */ | |
903 | if (!ocfs2_inode_is_valid_to_delete(inode)) { | |
64f3b269 | 904 | reason = 1; |
ccd979bd MF |
905 | goto bail; |
906 | } | |
907 | ||
908 | /* Now that we have an up to date inode, we can double check | |
909 | * the link count. */ | |
64f3b269 | 910 | if (inode->i_nlink) |
ccd979bd | 911 | goto bail; |
ccd979bd MF |
912 | |
913 | /* Do some basic inode verification... */ | |
914 | di = (struct ocfs2_dinode *) di_bh->b_data; | |
d4cd1871 LD |
915 | if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL)) && |
916 | !(oi->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) { | |
b54c2ca4 TY |
917 | /* |
918 | * Inodes in the orphan dir must have ORPHANED_FL. The only | |
919 | * inodes that come back out of the orphan dir are reflink | |
920 | * targets. A reflink target may be moved out of the orphan | |
921 | * dir between the time we scan the directory and the time we | |
922 | * process it. This would lead to HAS_REFCOUNT_FL being set but | |
923 | * ORPHANED_FL not. | |
924 | */ | |
925 | if (di->i_dyn_features & cpu_to_le16(OCFS2_HAS_REFCOUNT_FL)) { | |
64f3b269 | 926 | reason = 2; |
b54c2ca4 TY |
927 | goto bail; |
928 | } | |
929 | ||
ccd979bd MF |
930 | /* for lack of a better error? */ |
931 | status = -EEXIST; | |
932 | mlog(ML_ERROR, | |
b0697053 | 933 | "Inode %llu (on-disk %llu) not orphaned! " |
ccd979bd | 934 | "Disk flags 0x%x, inode flags 0x%x\n", |
b0697053 | 935 | (unsigned long long)oi->ip_blkno, |
1ca1a111 MF |
936 | (unsigned long long)le64_to_cpu(di->i_blkno), |
937 | le32_to_cpu(di->i_flags), oi->ip_flags); | |
ccd979bd MF |
938 | goto bail; |
939 | } | |
940 | ||
941 | /* has someone already deleted us?! baaad... */ | |
942 | if (di->i_dtime) { | |
943 | status = -EEXIST; | |
944 | mlog_errno(status); | |
945 | goto bail; | |
946 | } | |
947 | ||
6f16bf65 MF |
948 | /* |
949 | * This is how ocfs2 determines whether an inode is still live | |
950 | * within the cluster. Every node takes a shared read lock on | |
951 | * the inode open lock in ocfs2_read_locked_inode(). When we | |
952 | * get to ->delete_inode(), each node tries to convert it's | |
953 | * lock to an exclusive. Trylocks are serialized by the inode | |
25985edc | 954 | * meta data lock. If the upconvert succeeds, we know the inode |
6f16bf65 MF |
955 | * is no longer live and can be deleted. |
956 | * | |
957 | * Though we call this with the meta data lock held, the | |
958 | * trylock keeps us from ABBA deadlock. | |
959 | */ | |
960 | status = ocfs2_try_open_lock(inode, 1); | |
50008630 | 961 | if (status == -EAGAIN) { |
ccd979bd | 962 | status = 0; |
64f3b269 | 963 | reason = 3; |
ccd979bd MF |
964 | goto bail; |
965 | } | |
966 | if (status < 0) { | |
967 | mlog_errno(status); | |
968 | goto bail; | |
969 | } | |
970 | ||
50008630 | 971 | *wipe = 1; |
64f3b269 | 972 | trace_ocfs2_query_inode_wipe_succ(le16_to_cpu(di->i_orphaned_slot)); |
ccd979bd MF |
973 | |
974 | bail: | |
64f3b269 | 975 | trace_ocfs2_query_inode_wipe_end(status, reason); |
ccd979bd MF |
976 | return status; |
977 | } | |
978 | ||
979 | /* Support function for ocfs2_delete_inode. Will help us keep the | |
980 | * inode data in a consistent state for clear_inode. Always truncates | |
981 | * pages, optionally sync's them first. */ | |
982 | static void ocfs2_cleanup_delete_inode(struct inode *inode, | |
983 | int sync_data) | |
984 | { | |
64f3b269 TM |
985 | trace_ocfs2_cleanup_delete_inode( |
986 | (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data); | |
ccd979bd | 987 | if (sync_data) |
249ec93c | 988 | filemap_write_and_wait(inode->i_mapping); |
91b0abe3 | 989 | truncate_inode_pages_final(&inode->i_data); |
ccd979bd MF |
990 | } |
991 | ||
066d92dc | 992 | static void ocfs2_delete_inode(struct inode *inode) |
ccd979bd MF |
993 | { |
994 | int wipe, status; | |
e4b963f1 | 995 | sigset_t oldset; |
ccd979bd | 996 | struct buffer_head *di_bh = NULL; |
ad694821 | 997 | struct ocfs2_dinode *di = NULL; |
ccd979bd | 998 | |
64f3b269 TM |
999 | trace_ocfs2_delete_inode(inode->i_ino, |
1000 | (unsigned long long)OCFS2_I(inode)->ip_blkno, | |
1001 | is_bad_inode(inode)); | |
ccd979bd | 1002 | |
a90714c1 JK |
1003 | /* When we fail in read_inode() we mark inode as bad. The second test |
1004 | * catches the case when inode allocation fails before allocating | |
1005 | * a block for inode. */ | |
64f3b269 | 1006 | if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno) |
ccd979bd | 1007 | goto bail; |
ccd979bd MF |
1008 | |
1009 | if (!ocfs2_inode_is_valid_to_delete(inode)) { | |
1010 | /* It's probably not necessary to truncate_inode_pages | |
1011 | * here but we do it for safety anyway (it will most | |
1012 | * likely be a no-op anyway) */ | |
1013 | ocfs2_cleanup_delete_inode(inode, 0); | |
1014 | goto bail; | |
1015 | } | |
1016 | ||
bd62ad7a JK |
1017 | dquot_initialize(inode); |
1018 | ||
ccd979bd MF |
1019 | /* We want to block signals in delete_inode as the lock and |
1020 | * messaging paths may return us -ERESTARTSYS. Which would | |
1021 | * cause us to exit early, resulting in inodes being orphaned | |
1022 | * forever. */ | |
e4b963f1 | 1023 | ocfs2_block_signals(&oldset); |
ccd979bd | 1024 | |
6ca497a8 | 1025 | /* |
1026 | * Synchronize us against ocfs2_get_dentry. We take this in | |
1027 | * shared mode so that all nodes can still concurrently | |
1028 | * process deletes. | |
1029 | */ | |
1030 | status = ocfs2_nfs_sync_lock(OCFS2_SB(inode->i_sb), 0); | |
1031 | if (status < 0) { | |
1032 | mlog(ML_ERROR, "getting nfs sync lock(PR) failed %d\n", status); | |
1033 | ocfs2_cleanup_delete_inode(inode, 0); | |
1034 | goto bail_unblock; | |
1035 | } | |
ccd979bd MF |
1036 | /* Lock down the inode. This gives us an up to date view of |
1037 | * it's metadata (for verification), and allows us to | |
34d024f8 | 1038 | * serialize delete_inode on multiple nodes. |
ccd979bd MF |
1039 | * |
1040 | * Even though we might be doing a truncate, we don't take the | |
1041 | * allocation lock here as it won't be needed - nobody will | |
1042 | * have the file open. | |
1043 | */ | |
e63aecb6 | 1044 | status = ocfs2_inode_lock(inode, &di_bh, 1); |
ccd979bd MF |
1045 | if (status < 0) { |
1046 | if (status != -ENOENT) | |
1047 | mlog_errno(status); | |
1048 | ocfs2_cleanup_delete_inode(inode, 0); | |
6ca497a8 | 1049 | goto bail_unlock_nfs_sync; |
ccd979bd MF |
1050 | } |
1051 | ||
ad694821 JQ |
1052 | di = (struct ocfs2_dinode *)di_bh->b_data; |
1053 | /* Skip inode deletion and wait for dio orphan entry recovered | |
1054 | * first */ | |
1055 | if (unlikely(di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL))) { | |
1056 | ocfs2_cleanup_delete_inode(inode, 0); | |
1057 | goto bail_unlock_inode; | |
1058 | } | |
1059 | ||
ccd979bd MF |
1060 | /* Query the cluster. This will be the final decision made |
1061 | * before we go ahead and wipe the inode. */ | |
1062 | status = ocfs2_query_inode_wipe(inode, di_bh, &wipe); | |
1063 | if (!wipe || status < 0) { | |
34d024f8 | 1064 | /* Error and remote inode busy both mean we won't be |
ccd979bd MF |
1065 | * removing the inode, so they take almost the same |
1066 | * path. */ | |
1067 | if (status < 0) | |
1068 | mlog_errno(status); | |
1069 | ||
34d024f8 MF |
1070 | /* Someone in the cluster has disallowed a wipe of |
1071 | * this inode, or it was never completely | |
1072 | * orphaned. Write out the pages and exit now. */ | |
ccd979bd MF |
1073 | ocfs2_cleanup_delete_inode(inode, 1); |
1074 | goto bail_unlock_inode; | |
1075 | } | |
1076 | ||
1077 | ocfs2_cleanup_delete_inode(inode, 0); | |
1078 | ||
1079 | status = ocfs2_wipe_inode(inode, di_bh); | |
1080 | if (status < 0) { | |
b4df6ed8 MF |
1081 | if (status != -EDEADLK) |
1082 | mlog_errno(status); | |
ccd979bd MF |
1083 | goto bail_unlock_inode; |
1084 | } | |
1085 | ||
24c19ef4 MF |
1086 | /* |
1087 | * Mark the inode as successfully deleted. | |
1088 | * | |
1089 | * This is important for ocfs2_clear_inode() as it will check | |
1090 | * this flag and skip any checkpointing work | |
1091 | * | |
1092 | * ocfs2_stuff_meta_lvb() also uses this flag to invalidate | |
1093 | * the LVB for other nodes. | |
1094 | */ | |
ccd979bd MF |
1095 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_DELETED; |
1096 | ||
1097 | bail_unlock_inode: | |
e63aecb6 | 1098 | ocfs2_inode_unlock(inode, 1); |
ccd979bd | 1099 | brelse(di_bh); |
6ca497a8 | 1100 | |
1101 | bail_unlock_nfs_sync: | |
1102 | ocfs2_nfs_sync_unlock(OCFS2_SB(inode->i_sb), 0); | |
1103 | ||
ccd979bd | 1104 | bail_unblock: |
e4b963f1 | 1105 | ocfs2_unblock_signals(&oldset); |
ccd979bd | 1106 | bail: |
c1e8d35e | 1107 | return; |
ccd979bd MF |
1108 | } |
1109 | ||
066d92dc | 1110 | static void ocfs2_clear_inode(struct inode *inode) |
ccd979bd MF |
1111 | { |
1112 | int status; | |
1113 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
84d86f83 | 1114 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
ccd979bd | 1115 | |
dbd5768f | 1116 | clear_inode(inode); |
64f3b269 TM |
1117 | trace_ocfs2_clear_inode((unsigned long long)oi->ip_blkno, |
1118 | inode->i_nlink); | |
ccd979bd | 1119 | |
1119d3c0 | 1120 | mlog_bug_on_msg(osb == NULL, |
ccd979bd MF |
1121 | "Inode=%lu\n", inode->i_ino); |
1122 | ||
9f754758 | 1123 | dquot_drop(inode); |
257ba15c | 1124 | |
34d024f8 MF |
1125 | /* To preven remote deletes we hold open lock before, now it |
1126 | * is time to unlock PR and EX open locks. */ | |
50008630 TY |
1127 | ocfs2_open_unlock(inode); |
1128 | ||
ccd979bd | 1129 | /* Do these before all the other work so that we don't bounce |
34d024f8 | 1130 | * the downconvert thread while waiting to destroy the locks. */ |
84d86f83 JK |
1131 | ocfs2_mark_lockres_freeing(osb, &oi->ip_rw_lockres); |
1132 | ocfs2_mark_lockres_freeing(osb, &oi->ip_inode_lockres); | |
1133 | ocfs2_mark_lockres_freeing(osb, &oi->ip_open_lockres); | |
ccd979bd | 1134 | |
1119d3c0 | 1135 | ocfs2_resv_discard(&osb->osb_la_resmap, |
4fe370af MF |
1136 | &oi->ip_la_data_resv); |
1137 | ocfs2_resv_init_once(&oi->ip_la_data_resv); | |
1138 | ||
ccd979bd MF |
1139 | /* We very well may get a clear_inode before all an inodes |
1140 | * metadata has hit disk. Of course, we can't drop any cluster | |
1141 | * locks until the journal has finished with it. The only | |
1142 | * exception here are successfully wiped inodes - their | |
1143 | * metadata can now be considered to be part of the system | |
1144 | * inodes from which it came. */ | |
d324cd4c | 1145 | if (!(oi->ip_flags & OCFS2_INODE_DELETED)) |
ccd979bd MF |
1146 | ocfs2_checkpoint_inode(inode); |
1147 | ||
1148 | mlog_bug_on_msg(!list_empty(&oi->ip_io_markers), | |
b0697053 MF |
1149 | "Clear inode of %llu, inode has io markers\n", |
1150 | (unsigned long long)oi->ip_blkno); | |
4506cfb6 RD |
1151 | mlog_bug_on_msg(!list_empty(&oi->ip_unwritten_list), |
1152 | "Clear inode of %llu, inode has unwritten extents\n", | |
1153 | (unsigned long long)oi->ip_blkno); | |
ccd979bd | 1154 | |
83418978 MF |
1155 | ocfs2_extent_map_trunc(inode, 0); |
1156 | ||
ccd979bd MF |
1157 | status = ocfs2_drop_inode_locks(inode); |
1158 | if (status < 0) | |
1159 | mlog_errno(status); | |
1160 | ||
1161 | ocfs2_lock_res_free(&oi->ip_rw_lockres); | |
e63aecb6 | 1162 | ocfs2_lock_res_free(&oi->ip_inode_lockres); |
50008630 | 1163 | ocfs2_lock_res_free(&oi->ip_open_lockres); |
ccd979bd | 1164 | |
66fb345d | 1165 | ocfs2_metadata_cache_exit(INODE_CACHE(inode)); |
ccd979bd | 1166 | |
8cb471e8 | 1167 | mlog_bug_on_msg(INODE_CACHE(inode)->ci_num_cached, |
b0697053 | 1168 | "Clear inode of %llu, inode has %u cache items\n", |
8cb471e8 JB |
1169 | (unsigned long long)oi->ip_blkno, |
1170 | INODE_CACHE(inode)->ci_num_cached); | |
ccd979bd | 1171 | |
8cb471e8 | 1172 | mlog_bug_on_msg(!(INODE_CACHE(inode)->ci_flags & OCFS2_CACHE_FL_INLINE), |
b0697053 MF |
1173 | "Clear inode of %llu, inode has a bad flag\n", |
1174 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
1175 | |
1176 | mlog_bug_on_msg(spin_is_locked(&oi->ip_lock), | |
b0697053 MF |
1177 | "Clear inode of %llu, inode is locked\n", |
1178 | (unsigned long long)oi->ip_blkno); | |
ccd979bd | 1179 | |
251b6ecc | 1180 | mlog_bug_on_msg(!mutex_trylock(&oi->ip_io_mutex), |
b0697053 MF |
1181 | "Clear inode of %llu, io_mutex is locked\n", |
1182 | (unsigned long long)oi->ip_blkno); | |
251b6ecc | 1183 | mutex_unlock(&oi->ip_io_mutex); |
ccd979bd MF |
1184 | |
1185 | /* | |
1186 | * down_trylock() returns 0, down_write_trylock() returns 1 | |
1187 | * kernel 1, world 0 | |
1188 | */ | |
1189 | mlog_bug_on_msg(!down_write_trylock(&oi->ip_alloc_sem), | |
b0697053 MF |
1190 | "Clear inode of %llu, alloc_sem is locked\n", |
1191 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
1192 | up_write(&oi->ip_alloc_sem); |
1193 | ||
1194 | mlog_bug_on_msg(oi->ip_open_count, | |
b0697053 MF |
1195 | "Clear inode of %llu has open count %d\n", |
1196 | (unsigned long long)oi->ip_blkno, oi->ip_open_count); | |
ccd979bd MF |
1197 | |
1198 | /* Clear all other flags. */ | |
47460d65 | 1199 | oi->ip_flags = 0; |
ccd979bd MF |
1200 | oi->ip_dir_start_lookup = 0; |
1201 | oi->ip_blkno = 0ULL; | |
ae0dff68 SM |
1202 | |
1203 | /* | |
1204 | * ip_jinode is used to track txns against this inode. We ensure that | |
1205 | * the journal is flushed before journal shutdown. Thus it is safe to | |
1206 | * have inodes get cleaned up after journal shutdown. | |
1207 | */ | |
1119d3c0 | 1208 | jbd2_journal_release_jbd_inode(osb->journal->j_journal, |
2b4e30fb | 1209 | &oi->ip_jinode); |
ccd979bd MF |
1210 | } |
1211 | ||
066d92dc AV |
1212 | void ocfs2_evict_inode(struct inode *inode) |
1213 | { | |
1214 | if (!inode->i_nlink || | |
1215 | (OCFS2_I(inode)->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)) { | |
1216 | ocfs2_delete_inode(inode); | |
1217 | } else { | |
91b0abe3 | 1218 | truncate_inode_pages_final(&inode->i_data); |
066d92dc AV |
1219 | } |
1220 | ocfs2_clear_inode(inode); | |
1221 | } | |
1222 | ||
ccd979bd MF |
1223 | /* Called under inode_lock, with no more references on the |
1224 | * struct inode, so it's safe here to check the flags field | |
1225 | * and to manipulate i_nlink without any other locks. */ | |
45321ac5 | 1226 | int ocfs2_drop_inode(struct inode *inode) |
ccd979bd MF |
1227 | { |
1228 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
1229 | ||
64f3b269 TM |
1230 | trace_ocfs2_drop_inode((unsigned long long)oi->ip_blkno, |
1231 | inode->i_nlink, oi->ip_flags); | |
ccd979bd | 1232 | |
513e2dae X |
1233 | assert_spin_locked(&inode->i_lock); |
1234 | inode->i_state |= I_WILL_FREE; | |
1235 | spin_unlock(&inode->i_lock); | |
1236 | write_inode_now(inode, 1); | |
1237 | spin_lock(&inode->i_lock); | |
1238 | WARN_ON(inode->i_state & I_NEW); | |
1239 | inode->i_state &= ~I_WILL_FREE; | |
ccd979bd | 1240 | |
513e2dae | 1241 | return 1; |
ccd979bd MF |
1242 | } |
1243 | ||
ccd979bd MF |
1244 | /* |
1245 | * This is called from our getattr. | |
1246 | */ | |
1247 | int ocfs2_inode_revalidate(struct dentry *dentry) | |
1248 | { | |
2b0143b5 | 1249 | struct inode *inode = d_inode(dentry); |
ccd979bd MF |
1250 | int status = 0; |
1251 | ||
64f3b269 TM |
1252 | trace_ocfs2_inode_revalidate(inode, |
1253 | inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL, | |
1254 | inode ? (unsigned long long)OCFS2_I(inode)->ip_flags : 0); | |
ccd979bd MF |
1255 | |
1256 | if (!inode) { | |
ccd979bd MF |
1257 | status = -ENOENT; |
1258 | goto bail; | |
1259 | } | |
1260 | ||
1261 | spin_lock(&OCFS2_I(inode)->ip_lock); | |
1262 | if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) { | |
1263 | spin_unlock(&OCFS2_I(inode)->ip_lock); | |
ccd979bd MF |
1264 | status = -ENOENT; |
1265 | goto bail; | |
1266 | } | |
1267 | spin_unlock(&OCFS2_I(inode)->ip_lock); | |
1268 | ||
e63aecb6 | 1269 | /* Let ocfs2_inode_lock do the work of updating our struct |
ccd979bd | 1270 | * inode for us. */ |
e63aecb6 | 1271 | status = ocfs2_inode_lock(inode, NULL, 0); |
ccd979bd MF |
1272 | if (status < 0) { |
1273 | if (status != -ENOENT) | |
1274 | mlog_errno(status); | |
1275 | goto bail; | |
1276 | } | |
e63aecb6 | 1277 | ocfs2_inode_unlock(inode, 0); |
ccd979bd | 1278 | bail: |
ccd979bd MF |
1279 | return status; |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | * Updates a disk inode from a | |
1284 | * struct inode. | |
1285 | * Only takes ip_lock. | |
1286 | */ | |
1fabe148 | 1287 | int ocfs2_mark_inode_dirty(handle_t *handle, |
ccd979bd MF |
1288 | struct inode *inode, |
1289 | struct buffer_head *bh) | |
1290 | { | |
1291 | int status; | |
1292 | struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bh->b_data; | |
1293 | ||
64f3b269 | 1294 | trace_ocfs2_mark_inode_dirty((unsigned long long)OCFS2_I(inode)->ip_blkno); |
ccd979bd | 1295 | |
0cf2f763 | 1296 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh, |
13723d00 | 1297 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
1298 | if (status < 0) { |
1299 | mlog_errno(status); | |
1300 | goto leave; | |
1301 | } | |
1302 | ||
1303 | spin_lock(&OCFS2_I(inode)->ip_lock); | |
1304 | fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters); | |
6e4b0d56 | 1305 | ocfs2_get_inode_flags(OCFS2_I(inode)); |
ca4d147e | 1306 | fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr); |
15b1e36b | 1307 | fe->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features); |
ccd979bd MF |
1308 | spin_unlock(&OCFS2_I(inode)->ip_lock); |
1309 | ||
1310 | fe->i_size = cpu_to_le64(i_size_read(inode)); | |
198a1ca3 | 1311 | ocfs2_set_links_count(fe, inode->i_nlink); |
2c034176 EB |
1312 | fe->i_uid = cpu_to_le32(i_uid_read(inode)); |
1313 | fe->i_gid = cpu_to_le32(i_gid_read(inode)); | |
ccd979bd | 1314 | fe->i_mode = cpu_to_le16(inode->i_mode); |
fd6acbbc JL |
1315 | fe->i_atime = cpu_to_le64(inode_get_atime_sec(inode)); |
1316 | fe->i_atime_nsec = cpu_to_le32(inode_get_atime_nsec(inode)); | |
1317 | fe->i_ctime = cpu_to_le64(inode_get_ctime_sec(inode)); | |
1318 | fe->i_ctime_nsec = cpu_to_le32(inode_get_ctime_nsec(inode)); | |
1319 | fe->i_mtime = cpu_to_le64(inode_get_mtime_sec(inode)); | |
1320 | fe->i_mtime_nsec = cpu_to_le32(inode_get_mtime_nsec(inode)); | |
ccd979bd | 1321 | |
ec20cec7 | 1322 | ocfs2_journal_dirty(handle, bh); |
2931cdcb | 1323 | ocfs2_update_inode_fsync_trans(handle, inode, 1); |
ccd979bd | 1324 | leave: |
ccd979bd MF |
1325 | return status; |
1326 | } | |
1327 | ||
1328 | /* | |
1329 | * | |
1330 | * Updates a struct inode from a disk inode. | |
1331 | * does no i/o, only takes ip_lock. | |
1332 | */ | |
1333 | void ocfs2_refresh_inode(struct inode *inode, | |
1334 | struct ocfs2_dinode *fe) | |
1335 | { | |
ccd979bd MF |
1336 | spin_lock(&OCFS2_I(inode)->ip_lock); |
1337 | ||
1338 | OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); | |
ca4d147e | 1339 | OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); |
15b1e36b | 1340 | OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); |
ca4d147e | 1341 | ocfs2_set_inode_flags(inode); |
ccd979bd | 1342 | i_size_write(inode, le64_to_cpu(fe->i_size)); |
bfe86848 | 1343 | set_nlink(inode, ocfs2_read_links_count(fe)); |
2c034176 EB |
1344 | i_uid_write(inode, le32_to_cpu(fe->i_uid)); |
1345 | i_gid_write(inode, le32_to_cpu(fe->i_gid)); | |
ccd979bd | 1346 | inode->i_mode = le16_to_cpu(fe->i_mode); |
ccd979bd MF |
1347 | if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0) |
1348 | inode->i_blocks = 0; | |
1349 | else | |
8110b073 | 1350 | inode->i_blocks = ocfs2_inode_sector_count(inode); |
fd6acbbc JL |
1351 | inode_set_atime(inode, le64_to_cpu(fe->i_atime), |
1352 | le32_to_cpu(fe->i_atime_nsec)); | |
1353 | inode_set_mtime(inode, le64_to_cpu(fe->i_mtime), | |
1354 | le32_to_cpu(fe->i_mtime_nsec)); | |
6861de97 JL |
1355 | inode_set_ctime(inode, le64_to_cpu(fe->i_ctime), |
1356 | le32_to_cpu(fe->i_ctime_nsec)); | |
ccd979bd MF |
1357 | |
1358 | spin_unlock(&OCFS2_I(inode)->ip_lock); | |
1359 | } | |
b657c95c JB |
1360 | |
1361 | int ocfs2_validate_inode_block(struct super_block *sb, | |
1362 | struct buffer_head *bh) | |
1363 | { | |
d6b32bbb | 1364 | int rc; |
b657c95c JB |
1365 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; |
1366 | ||
64f3b269 | 1367 | trace_ocfs2_validate_inode_block((unsigned long long)bh->b_blocknr); |
970e4936 | 1368 | |
b657c95c JB |
1369 | BUG_ON(!buffer_uptodate(bh)); |
1370 | ||
d6b32bbb JB |
1371 | /* |
1372 | * If the ecc fails, we return the error but otherwise | |
1373 | * leave the filesystem running. We know any error is | |
1374 | * local to this block. | |
1375 | */ | |
1376 | rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check); | |
13723d00 JB |
1377 | if (rc) { |
1378 | mlog(ML_ERROR, "Checksum failed for dinode %llu\n", | |
1379 | (unsigned long long)bh->b_blocknr); | |
d6b32bbb | 1380 | goto bail; |
13723d00 | 1381 | } |
d6b32bbb JB |
1382 | |
1383 | /* | |
1384 | * Errors after here are fatal. | |
1385 | */ | |
1386 | ||
1387 | rc = -EINVAL; | |
1388 | ||
b657c95c | 1389 | if (!OCFS2_IS_VALID_DINODE(di)) { |
17a5b9ab | 1390 | rc = ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n", |
7ecef14a JP |
1391 | (unsigned long long)bh->b_blocknr, 7, |
1392 | di->i_signature); | |
b657c95c JB |
1393 | goto bail; |
1394 | } | |
1395 | ||
1396 | if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) { | |
17a5b9ab | 1397 | rc = ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n", |
7ecef14a JP |
1398 | (unsigned long long)bh->b_blocknr, |
1399 | (unsigned long long)le64_to_cpu(di->i_blkno)); | |
b657c95c JB |
1400 | goto bail; |
1401 | } | |
1402 | ||
1403 | if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { | |
17a5b9ab | 1404 | rc = ocfs2_error(sb, |
7ecef14a JP |
1405 | "Invalid dinode #%llu: OCFS2_VALID_FL not set\n", |
1406 | (unsigned long long)bh->b_blocknr); | |
b657c95c JB |
1407 | goto bail; |
1408 | } | |
1409 | ||
1410 | if (le32_to_cpu(di->i_fs_generation) != | |
1411 | OCFS2_SB(sb)->fs_generation) { | |
17a5b9ab | 1412 | rc = ocfs2_error(sb, |
7ecef14a JP |
1413 | "Invalid dinode #%llu: fs_generation is %u\n", |
1414 | (unsigned long long)bh->b_blocknr, | |
1415 | le32_to_cpu(di->i_fs_generation)); | |
b657c95c JB |
1416 | goto bail; |
1417 | } | |
1418 | ||
1419 | rc = 0; | |
1420 | ||
1421 | bail: | |
1422 | return rc; | |
1423 | } | |
1424 | ||
d56a8f32 GH |
1425 | static int ocfs2_filecheck_validate_inode_block(struct super_block *sb, |
1426 | struct buffer_head *bh) | |
1427 | { | |
1428 | int rc = 0; | |
1429 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; | |
1430 | ||
1431 | trace_ocfs2_filecheck_validate_inode_block( | |
1432 | (unsigned long long)bh->b_blocknr); | |
1433 | ||
1434 | BUG_ON(!buffer_uptodate(bh)); | |
1435 | ||
1436 | /* | |
1437 | * Call ocfs2_validate_meta_ecc() first since it has ecc repair | |
1438 | * function, but we should not return error immediately when ecc | |
1439 | * validation fails, because the reason is quite likely the invalid | |
1440 | * inode number inputed. | |
1441 | */ | |
1442 | rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check); | |
1443 | if (rc) { | |
1444 | mlog(ML_ERROR, | |
1445 | "Filecheck: checksum failed for dinode %llu\n", | |
1446 | (unsigned long long)bh->b_blocknr); | |
1447 | rc = -OCFS2_FILECHECK_ERR_BLOCKECC; | |
1448 | } | |
1449 | ||
1450 | if (!OCFS2_IS_VALID_DINODE(di)) { | |
1451 | mlog(ML_ERROR, | |
1452 | "Filecheck: invalid dinode #%llu: signature = %.*s\n", | |
1453 | (unsigned long long)bh->b_blocknr, 7, di->i_signature); | |
1454 | rc = -OCFS2_FILECHECK_ERR_INVALIDINO; | |
1455 | goto bail; | |
1456 | } else if (rc) | |
1457 | goto bail; | |
1458 | ||
1459 | if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) { | |
1460 | mlog(ML_ERROR, | |
1461 | "Filecheck: invalid dinode #%llu: i_blkno is %llu\n", | |
1462 | (unsigned long long)bh->b_blocknr, | |
1463 | (unsigned long long)le64_to_cpu(di->i_blkno)); | |
1464 | rc = -OCFS2_FILECHECK_ERR_BLOCKNO; | |
1465 | goto bail; | |
1466 | } | |
1467 | ||
1468 | if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { | |
1469 | mlog(ML_ERROR, | |
1470 | "Filecheck: invalid dinode #%llu: OCFS2_VALID_FL " | |
1471 | "not set\n", | |
1472 | (unsigned long long)bh->b_blocknr); | |
1473 | rc = -OCFS2_FILECHECK_ERR_VALIDFLAG; | |
1474 | goto bail; | |
1475 | } | |
1476 | ||
1477 | if (le32_to_cpu(di->i_fs_generation) != | |
1478 | OCFS2_SB(sb)->fs_generation) { | |
1479 | mlog(ML_ERROR, | |
1480 | "Filecheck: invalid dinode #%llu: fs_generation is %u\n", | |
1481 | (unsigned long long)bh->b_blocknr, | |
1482 | le32_to_cpu(di->i_fs_generation)); | |
1483 | rc = -OCFS2_FILECHECK_ERR_GENERATION; | |
d56a8f32 GH |
1484 | } |
1485 | ||
1486 | bail: | |
1487 | return rc; | |
1488 | } | |
1489 | ||
1490 | static int ocfs2_filecheck_repair_inode_block(struct super_block *sb, | |
1491 | struct buffer_head *bh) | |
1492 | { | |
1493 | int changed = 0; | |
1494 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; | |
1495 | ||
1496 | if (!ocfs2_filecheck_validate_inode_block(sb, bh)) | |
1497 | return 0; | |
1498 | ||
1499 | trace_ocfs2_filecheck_repair_inode_block( | |
1500 | (unsigned long long)bh->b_blocknr); | |
1501 | ||
1502 | if (ocfs2_is_hard_readonly(OCFS2_SB(sb)) || | |
1503 | ocfs2_is_soft_readonly(OCFS2_SB(sb))) { | |
1504 | mlog(ML_ERROR, | |
1505 | "Filecheck: cannot repair dinode #%llu " | |
1506 | "on readonly filesystem\n", | |
1507 | (unsigned long long)bh->b_blocknr); | |
1508 | return -OCFS2_FILECHECK_ERR_READONLY; | |
1509 | } | |
1510 | ||
1511 | if (buffer_jbd(bh)) { | |
1512 | mlog(ML_ERROR, | |
1513 | "Filecheck: cannot repair dinode #%llu, " | |
1514 | "its buffer is in jbd\n", | |
1515 | (unsigned long long)bh->b_blocknr); | |
1516 | return -OCFS2_FILECHECK_ERR_INJBD; | |
1517 | } | |
1518 | ||
1519 | if (!OCFS2_IS_VALID_DINODE(di)) { | |
1520 | /* Cannot fix invalid inode block */ | |
1521 | return -OCFS2_FILECHECK_ERR_INVALIDINO; | |
1522 | } | |
1523 | ||
1524 | if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { | |
1525 | /* Cannot just add VALID_FL flag back as a fix, | |
1526 | * need more things to check here. | |
1527 | */ | |
1528 | return -OCFS2_FILECHECK_ERR_VALIDFLAG; | |
1529 | } | |
1530 | ||
1531 | if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) { | |
1532 | di->i_blkno = cpu_to_le64(bh->b_blocknr); | |
1533 | changed = 1; | |
1534 | mlog(ML_ERROR, | |
1535 | "Filecheck: reset dinode #%llu: i_blkno to %llu\n", | |
1536 | (unsigned long long)bh->b_blocknr, | |
1537 | (unsigned long long)le64_to_cpu(di->i_blkno)); | |
1538 | } | |
1539 | ||
1540 | if (le32_to_cpu(di->i_fs_generation) != | |
1541 | OCFS2_SB(sb)->fs_generation) { | |
1542 | di->i_fs_generation = cpu_to_le32(OCFS2_SB(sb)->fs_generation); | |
1543 | changed = 1; | |
1544 | mlog(ML_ERROR, | |
1545 | "Filecheck: reset dinode #%llu: fs_generation to %u\n", | |
1546 | (unsigned long long)bh->b_blocknr, | |
1547 | le32_to_cpu(di->i_fs_generation)); | |
1548 | } | |
1549 | ||
1550 | if (changed || ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check)) { | |
1551 | ocfs2_compute_meta_ecc(sb, bh->b_data, &di->i_check); | |
1552 | mark_buffer_dirty(bh); | |
1553 | mlog(ML_ERROR, | |
1554 | "Filecheck: reset dinode #%llu: compute meta ecc\n", | |
1555 | (unsigned long long)bh->b_blocknr); | |
1556 | } | |
1557 | ||
1558 | return 0; | |
1559 | } | |
1560 | ||
1561 | static int | |
1562 | ocfs2_filecheck_read_inode_block_full(struct inode *inode, | |
1563 | struct buffer_head **bh, | |
1564 | int flags, int type) | |
1565 | { | |
1566 | int rc; | |
1567 | struct buffer_head *tmp = *bh; | |
1568 | ||
1569 | if (!type) /* Check inode block */ | |
1570 | rc = ocfs2_read_blocks(INODE_CACHE(inode), | |
1571 | OCFS2_I(inode)->ip_blkno, | |
1572 | 1, &tmp, flags, | |
1573 | ocfs2_filecheck_validate_inode_block); | |
1574 | else /* Repair inode block */ | |
1575 | rc = ocfs2_read_blocks(INODE_CACHE(inode), | |
1576 | OCFS2_I(inode)->ip_blkno, | |
1577 | 1, &tmp, flags, | |
1578 | ocfs2_filecheck_repair_inode_block); | |
1579 | ||
1580 | /* If ocfs2_read_blocks() got us a new bh, pass it up. */ | |
1581 | if (!rc && !*bh) | |
1582 | *bh = tmp; | |
1583 | ||
1584 | return rc; | |
1585 | } | |
1586 | ||
b657c95c JB |
1587 | int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh, |
1588 | int flags) | |
1589 | { | |
1590 | int rc; | |
1591 | struct buffer_head *tmp = *bh; | |
1592 | ||
8cb471e8 JB |
1593 | rc = ocfs2_read_blocks(INODE_CACHE(inode), OCFS2_I(inode)->ip_blkno, |
1594 | 1, &tmp, flags, ocfs2_validate_inode_block); | |
b657c95c JB |
1595 | |
1596 | /* If ocfs2_read_blocks() got us a new bh, pass it up. */ | |
970e4936 | 1597 | if (!rc && !*bh) |
b657c95c JB |
1598 | *bh = tmp; |
1599 | ||
b657c95c JB |
1600 | return rc; |
1601 | } | |
1602 | ||
1603 | int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh) | |
1604 | { | |
1605 | return ocfs2_read_inode_block_full(inode, bh, 0); | |
1606 | } | |
6e5a3d75 | 1607 | |
6e5a3d75 JB |
1608 | |
1609 | static u64 ocfs2_inode_cache_owner(struct ocfs2_caching_info *ci) | |
1610 | { | |
1611 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1612 | ||
1613 | return oi->ip_blkno; | |
1614 | } | |
1615 | ||
8cb471e8 JB |
1616 | static struct super_block *ocfs2_inode_cache_get_super(struct ocfs2_caching_info *ci) |
1617 | { | |
1618 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1619 | ||
1620 | return oi->vfs_inode.i_sb; | |
1621 | } | |
1622 | ||
6e5a3d75 JB |
1623 | static void ocfs2_inode_cache_lock(struct ocfs2_caching_info *ci) |
1624 | { | |
1625 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1626 | ||
1627 | spin_lock(&oi->ip_lock); | |
1628 | } | |
1629 | ||
1630 | static void ocfs2_inode_cache_unlock(struct ocfs2_caching_info *ci) | |
1631 | { | |
1632 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1633 | ||
1634 | spin_unlock(&oi->ip_lock); | |
1635 | } | |
1636 | ||
1637 | static void ocfs2_inode_cache_io_lock(struct ocfs2_caching_info *ci) | |
1638 | { | |
1639 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1640 | ||
1641 | mutex_lock(&oi->ip_io_mutex); | |
1642 | } | |
1643 | ||
1644 | static void ocfs2_inode_cache_io_unlock(struct ocfs2_caching_info *ci) | |
1645 | { | |
1646 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1647 | ||
1648 | mutex_unlock(&oi->ip_io_mutex); | |
1649 | } | |
1650 | ||
1651 | const struct ocfs2_caching_operations ocfs2_inode_caching_ops = { | |
1652 | .co_owner = ocfs2_inode_cache_owner, | |
8cb471e8 | 1653 | .co_get_super = ocfs2_inode_cache_get_super, |
6e5a3d75 JB |
1654 | .co_cache_lock = ocfs2_inode_cache_lock, |
1655 | .co_cache_unlock = ocfs2_inode_cache_unlock, | |
1656 | .co_io_lock = ocfs2_inode_cache_io_lock, | |
1657 | .co_io_unlock = ocfs2_inode_cache_io_unlock, | |
1658 | }; | |
1659 |