Commit | Line | Data |
---|---|---|
ccd979bd MF |
1 | /* -*- mode: c; c-basic-offset: 8; -*- |
2 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
3 | * | |
4 | * namei.c | |
5 | * | |
6 | * Create and rename file, directory, symlinks | |
7 | * | |
8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
9 | * | |
10 | * Portions of this code from linux/fs/ext3/dir.c | |
11 | * | |
12 | * Copyright (C) 1992, 1993, 1994, 1995 | |
13 | * Remy Card (card@masi.ibp.fr) | |
14 | * Laboratoire MASI - Institut Blaise pascal | |
15 | * Universite Pierre et Marie Curie (Paris VI) | |
16 | * | |
17 | * from | |
18 | * | |
19 | * linux/fs/minix/dir.c | |
20 | * | |
21 | * Copyright (C) 1991, 1992 Linux Torvalds | |
22 | * | |
23 | * This program is free software; you can redistribute it and/or | |
24 | * modify it under the terms of the GNU General Public | |
25 | * License as published by the Free Software Foundation; either | |
26 | * version 2 of the License, or (at your option) any later version. | |
27 | * | |
28 | * This program is distributed in the hope that it will be useful, | |
29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
31 | * General Public License for more details. | |
32 | * | |
33 | * You should have received a copy of the GNU General Public | |
34 | * License along with this program; if not, write to the | |
35 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
36 | * Boston, MA 021110-1307, USA. | |
37 | */ | |
38 | ||
39 | #include <linux/fs.h> | |
40 | #include <linux/types.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/highmem.h> | |
a90714c1 | 43 | #include <linux/quotaops.h> |
ccd979bd MF |
44 | |
45 | #define MLOG_MASK_PREFIX ML_NAMEI | |
46 | #include <cluster/masklog.h> | |
47 | ||
48 | #include "ocfs2.h" | |
49 | ||
50 | #include "alloc.h" | |
51 | #include "dcache.h" | |
52 | #include "dir.h" | |
53 | #include "dlmglue.h" | |
54 | #include "extent_map.h" | |
55 | #include "file.h" | |
56 | #include "inode.h" | |
57 | #include "journal.h" | |
58 | #include "namei.h" | |
59 | #include "suballoc.h" | |
aa958874 | 60 | #include "super.h" |
ccd979bd MF |
61 | #include "symlink.h" |
62 | #include "sysfile.h" | |
63 | #include "uptodate.h" | |
cf1d6c76 | 64 | #include "xattr.h" |
89c38bd0 | 65 | #include "acl.h" |
ccd979bd MF |
66 | |
67 | #include "buffer_head_io.h" | |
68 | ||
ccd979bd MF |
69 | static int ocfs2_mknod_locked(struct ocfs2_super *osb, |
70 | struct inode *dir, | |
f5d36202 | 71 | struct inode *inode, |
ccd979bd MF |
72 | dev_t dev, |
73 | struct buffer_head **new_fe_bh, | |
74 | struct buffer_head *parent_fe_bh, | |
1fabe148 | 75 | handle_t *handle, |
ccd979bd MF |
76 | struct ocfs2_alloc_context *inode_ac); |
77 | ||
ccd979bd | 78 | static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, |
5098c27b | 79 | struct inode **ret_orphan_dir, |
19bd341f | 80 | u64 blkno, |
ccd979bd | 81 | char *name, |
4a12ca3a | 82 | struct ocfs2_dir_lookup_result *lookup); |
ccd979bd MF |
83 | |
84 | static int ocfs2_orphan_add(struct ocfs2_super *osb, | |
1fabe148 | 85 | handle_t *handle, |
ccd979bd | 86 | struct inode *inode, |
3939fda4 | 87 | struct buffer_head *fe_bh, |
ccd979bd | 88 | char *name, |
4a12ca3a | 89 | struct ocfs2_dir_lookup_result *lookup, |
5098c27b | 90 | struct inode *orphan_dir_inode); |
ccd979bd MF |
91 | |
92 | static int ocfs2_create_symlink_data(struct ocfs2_super *osb, | |
1fabe148 | 93 | handle_t *handle, |
ccd979bd MF |
94 | struct inode *inode, |
95 | const char *symname); | |
96 | ||
ccd979bd MF |
97 | /* An orphan dir name is an 8 byte value, printed as a hex string */ |
98 | #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64))) | |
99 | ||
100 | static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry, | |
101 | struct nameidata *nd) | |
102 | { | |
103 | int status; | |
104 | u64 blkno; | |
ccd979bd MF |
105 | struct inode *inode = NULL; |
106 | struct dentry *ret; | |
ccd979bd MF |
107 | struct ocfs2_inode_info *oi; |
108 | ||
ef6b689b TM |
109 | mlog(0, "(0x%p, 0x%p, '%.*s')\n", dir, dentry, |
110 | dentry->d_name.len, dentry->d_name.name); | |
ccd979bd MF |
111 | |
112 | if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) { | |
113 | ret = ERR_PTR(-ENAMETOOLONG); | |
114 | goto bail; | |
115 | } | |
116 | ||
b0697053 MF |
117 | mlog(0, "find name %.*s in directory %llu\n", dentry->d_name.len, |
118 | dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno); | |
ccd979bd | 119 | |
cb25797d | 120 | status = ocfs2_inode_lock_nested(dir, NULL, 0, OI_LS_PARENT); |
ccd979bd MF |
121 | if (status < 0) { |
122 | if (status != -ENOENT) | |
123 | mlog_errno(status); | |
124 | ret = ERR_PTR(status); | |
125 | goto bail; | |
126 | } | |
127 | ||
be94d117 MF |
128 | status = ocfs2_lookup_ino_from_name(dir, dentry->d_name.name, |
129 | dentry->d_name.len, &blkno); | |
ccd979bd MF |
130 | if (status < 0) |
131 | goto bail_add; | |
132 | ||
5fa0613e | 133 | inode = ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0); |
ccd979bd | 134 | if (IS_ERR(inode)) { |
ccd979bd MF |
135 | ret = ERR_PTR(-EACCES); |
136 | goto bail_unlock; | |
137 | } | |
138 | ||
139 | oi = OCFS2_I(inode); | |
140 | /* Clear any orphaned state... If we were able to look up the | |
141 | * inode from a directory, it certainly can't be orphaned. We | |
142 | * might have the bad state from a node which intended to | |
143 | * orphan this inode but crashed before it could commit the | |
144 | * unlink. */ | |
145 | spin_lock(&oi->ip_lock); | |
146 | oi->ip_flags &= ~OCFS2_INODE_MAYBE_ORPHANED; | |
ccd979bd MF |
147 | spin_unlock(&oi->ip_lock); |
148 | ||
149 | bail_add: | |
ccd979bd MF |
150 | ret = d_splice_alias(inode, dentry); |
151 | ||
379dfe9d MF |
152 | if (inode) { |
153 | /* | |
154 | * If d_splice_alias() finds a DCACHE_DISCONNECTED | |
155 | * dentry, it will d_move() it on top of ourse. The | |
156 | * return value will indicate this however, so in | |
157 | * those cases, we switch them around for the locking | |
158 | * code. | |
159 | * | |
160 | * NOTE: This dentry already has ->d_op set from | |
161 | * ocfs2_get_parent() and ocfs2_get_dentry() | |
162 | */ | |
163 | if (ret) | |
164 | dentry = ret; | |
165 | ||
166 | status = ocfs2_dentry_attach_lock(dentry, inode, | |
0027dd5b | 167 | OCFS2_I(dir)->ip_blkno); |
379dfe9d MF |
168 | if (status) { |
169 | mlog_errno(status); | |
170 | ret = ERR_PTR(status); | |
171 | goto bail_unlock; | |
172 | } | |
5e98d492 GR |
173 | } else |
174 | ocfs2_dentry_attach_gen(dentry); | |
379dfe9d | 175 | |
ccd979bd MF |
176 | bail_unlock: |
177 | /* Don't drop the cluster lock until *after* the d_add -- | |
178 | * unlink on another node will message us to remove that | |
179 | * dentry under this lock so otherwise we can race this with | |
34d024f8 | 180 | * the downconvert thread and have a stale dentry. */ |
e63aecb6 | 181 | ocfs2_inode_unlock(dir, 0); |
ccd979bd MF |
182 | |
183 | bail: | |
ccd979bd | 184 | |
c1e8d35e | 185 | mlog(0, "%p\n", ret); |
ccd979bd MF |
186 | |
187 | return ret; | |
188 | } | |
189 | ||
f5d36202 TY |
190 | static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode) |
191 | { | |
192 | struct inode *inode; | |
193 | ||
194 | inode = new_inode(dir->i_sb); | |
195 | if (!inode) { | |
196 | mlog(ML_ERROR, "new_inode failed!\n"); | |
197 | return NULL; | |
198 | } | |
199 | ||
200 | /* populate as many fields early on as possible - many of | |
201 | * these are used by the support functions here and in | |
202 | * callers. */ | |
203 | if (S_ISDIR(mode)) | |
204 | inode->i_nlink = 2; | |
205 | else | |
206 | inode->i_nlink = 1; | |
75fe0a24 | 207 | inode_init_owner(inode, dir, mode); |
871a2931 | 208 | dquot_initialize(inode); |
f5d36202 TY |
209 | return inode; |
210 | } | |
211 | ||
ccd979bd MF |
212 | static int ocfs2_mknod(struct inode *dir, |
213 | struct dentry *dentry, | |
214 | int mode, | |
215 | dev_t dev) | |
216 | { | |
217 | int status = 0; | |
218 | struct buffer_head *parent_fe_bh = NULL; | |
1fabe148 | 219 | handle_t *handle = NULL; |
ccd979bd MF |
220 | struct ocfs2_super *osb; |
221 | struct ocfs2_dinode *dirfe; | |
222 | struct buffer_head *new_fe_bh = NULL; | |
ccd979bd MF |
223 | struct inode *inode = NULL; |
224 | struct ocfs2_alloc_context *inode_ac = NULL; | |
225 | struct ocfs2_alloc_context *data_ac = NULL; | |
9b7895ef | 226 | struct ocfs2_alloc_context *meta_ac = NULL; |
534eaddd | 227 | int want_clusters = 0; |
9b7895ef | 228 | int want_meta = 0; |
534eaddd TY |
229 | int xattr_credits = 0; |
230 | struct ocfs2_security_xattr_info si = { | |
231 | .enable = 1, | |
232 | }; | |
a90714c1 | 233 | int did_quota_inode = 0; |
4a12ca3a | 234 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
547ba7c8 JB |
235 | sigset_t oldset; |
236 | int did_block_signals = 0; | |
ccd979bd | 237 | |
ef6b689b TM |
238 | mlog(0, "(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, mode, |
239 | (unsigned long)dev, dentry->d_name.len, | |
240 | dentry->d_name.name); | |
ccd979bd | 241 | |
871a2931 | 242 | dquot_initialize(dir); |
907f4554 | 243 | |
ccd979bd MF |
244 | /* get our super block */ |
245 | osb = OCFS2_SB(dir->i_sb); | |
246 | ||
e63aecb6 | 247 | status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); |
e3a82138 MF |
248 | if (status < 0) { |
249 | if (status != -ENOENT) | |
250 | mlog_errno(status); | |
251 | return status; | |
252 | } | |
253 | ||
198a1ca3 | 254 | if (S_ISDIR(mode) && (dir->i_nlink >= ocfs2_link_max(osb))) { |
a663e305 MF |
255 | status = -EMLINK; |
256 | goto leave; | |
257 | } | |
258 | ||
ccd979bd | 259 | dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; |
198a1ca3 | 260 | if (!ocfs2_read_links_count(dirfe)) { |
ccd979bd MF |
261 | /* can't make a file in a deleted directory. */ |
262 | status = -ENOENT; | |
263 | goto leave; | |
264 | } | |
265 | ||
266 | status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, | |
267 | dentry->d_name.len); | |
268 | if (status) | |
269 | goto leave; | |
270 | ||
271 | /* get a spot inside the dir. */ | |
272 | status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, | |
273 | dentry->d_name.name, | |
4a12ca3a | 274 | dentry->d_name.len, &lookup); |
ccd979bd MF |
275 | if (status < 0) { |
276 | mlog_errno(status); | |
277 | goto leave; | |
278 | } | |
279 | ||
280 | /* reserve an inode spot */ | |
da5cbf2f | 281 | status = ocfs2_reserve_new_inode(osb, &inode_ac); |
ccd979bd MF |
282 | if (status < 0) { |
283 | if (status != -ENOSPC) | |
284 | mlog_errno(status); | |
285 | goto leave; | |
286 | } | |
287 | ||
f5d36202 TY |
288 | inode = ocfs2_get_init_inode(dir, mode); |
289 | if (!inode) { | |
290 | status = -ENOMEM; | |
291 | mlog_errno(status); | |
292 | goto leave; | |
293 | } | |
294 | ||
534eaddd TY |
295 | /* get security xattr */ |
296 | status = ocfs2_init_security_get(inode, dir, &si); | |
297 | if (status) { | |
298 | if (status == -EOPNOTSUPP) | |
299 | si.enable = 0; | |
300 | else { | |
301 | mlog_errno(status); | |
302 | goto leave; | |
303 | } | |
304 | } | |
305 | ||
89c38bd0 TY |
306 | /* calculate meta data/clusters for setting security and acl xattr */ |
307 | status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode, | |
9b7895ef MF |
308 | &si, &want_clusters, |
309 | &xattr_credits, &want_meta); | |
89c38bd0 TY |
310 | if (status < 0) { |
311 | mlog_errno(status); | |
312 | goto leave; | |
ccd979bd MF |
313 | } |
314 | ||
534eaddd | 315 | /* Reserve a cluster if creating an extent based directory. */ |
9b7895ef | 316 | if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb)) { |
534eaddd TY |
317 | want_clusters += 1; |
318 | ||
9b7895ef | 319 | /* Dir indexing requires extra space as well */ |
4ed8a6bb | 320 | if (ocfs2_supports_indexed_dirs(osb)) |
9b7895ef | 321 | want_meta++; |
9b7895ef MF |
322 | } |
323 | ||
324 | status = ocfs2_reserve_new_metadata_blocks(osb, want_meta, &meta_ac); | |
325 | if (status < 0) { | |
326 | if (status != -ENOSPC) | |
327 | mlog_errno(status); | |
328 | goto leave; | |
329 | } | |
330 | ||
534eaddd TY |
331 | status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); |
332 | if (status < 0) { | |
333 | if (status != -ENOSPC) | |
334 | mlog_errno(status); | |
335 | goto leave; | |
336 | } | |
337 | ||
9b7895ef MF |
338 | handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, |
339 | S_ISDIR(mode), | |
340 | xattr_credits)); | |
ccd979bd MF |
341 | if (IS_ERR(handle)) { |
342 | status = PTR_ERR(handle); | |
343 | handle = NULL; | |
344 | mlog_errno(status); | |
345 | goto leave; | |
346 | } | |
347 | ||
547ba7c8 JB |
348 | /* Starting to change things, restart is no longer possible. */ |
349 | ocfs2_block_signals(&oldset); | |
350 | did_block_signals = 1; | |
351 | ||
63936dda CH |
352 | status = dquot_alloc_inode(inode); |
353 | if (status) | |
a90714c1 | 354 | goto leave; |
a90714c1 JK |
355 | did_quota_inode = 1; |
356 | ||
ef6b689b TM |
357 | mlog(0, "(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, |
358 | inode->i_mode, (unsigned long)dev, dentry->d_name.len, | |
359 | dentry->d_name.name); | |
19bd341f | 360 | |
ccd979bd | 361 | /* do the real work now. */ |
19bd341f | 362 | status = ocfs2_mknod_locked(osb, dir, inode, dev, |
ccd979bd | 363 | &new_fe_bh, parent_fe_bh, handle, |
f5d36202 | 364 | inode_ac); |
ccd979bd MF |
365 | if (status < 0) { |
366 | mlog_errno(status); | |
367 | goto leave; | |
368 | } | |
369 | ||
370 | if (S_ISDIR(mode)) { | |
371 | status = ocfs2_fill_new_dir(osb, handle, dir, inode, | |
9b7895ef | 372 | new_fe_bh, data_ac, meta_ac); |
ccd979bd MF |
373 | if (status < 0) { |
374 | mlog_errno(status); | |
375 | goto leave; | |
376 | } | |
377 | ||
0cf2f763 JB |
378 | status = ocfs2_journal_access_di(handle, INODE_CACHE(dir), |
379 | parent_fe_bh, | |
13723d00 | 380 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
381 | if (status < 0) { |
382 | mlog_errno(status); | |
383 | goto leave; | |
384 | } | |
198a1ca3 | 385 | ocfs2_add_links_count(dirfe, 1); |
ec20cec7 | 386 | ocfs2_journal_dirty(handle, parent_fe_bh); |
d8c76e6f | 387 | inc_nlink(dir); |
ccd979bd MF |
388 | } |
389 | ||
89c38bd0 | 390 | status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh, |
9b7895ef | 391 | meta_ac, data_ac); |
89c38bd0 TY |
392 | if (status < 0) { |
393 | mlog_errno(status); | |
394 | goto leave; | |
395 | } | |
396 | ||
534eaddd TY |
397 | if (si.enable) { |
398 | status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, | |
9b7895ef | 399 | meta_ac, data_ac); |
534eaddd TY |
400 | if (status < 0) { |
401 | mlog_errno(status); | |
402 | goto leave; | |
403 | } | |
404 | } | |
405 | ||
a9743fcd MF |
406 | /* |
407 | * Do this before adding the entry to the directory. We add | |
408 | * also set d_op after success so that ->d_iput() will cleanup | |
409 | * the dentry lock even if ocfs2_add_entry() fails below. | |
410 | */ | |
411 | status = ocfs2_dentry_attach_lock(dentry, inode, | |
412 | OCFS2_I(dir)->ip_blkno); | |
413 | if (status) { | |
ccd979bd MF |
414 | mlog_errno(status); |
415 | goto leave; | |
416 | } | |
417 | ||
a9743fcd MF |
418 | status = ocfs2_add_entry(handle, dentry, inode, |
419 | OCFS2_I(inode)->ip_blkno, parent_fe_bh, | |
420 | &lookup); | |
421 | if (status < 0) { | |
379dfe9d MF |
422 | mlog_errno(status); |
423 | goto leave; | |
424 | } | |
425 | ||
ccd979bd | 426 | insert_inode_hash(inode); |
ccd979bd MF |
427 | d_instantiate(dentry, inode); |
428 | status = 0; | |
429 | leave: | |
a90714c1 | 430 | if (status < 0 && did_quota_inode) |
63936dda | 431 | dquot_free_inode(inode); |
ccd979bd | 432 | if (handle) |
02dc1af4 | 433 | ocfs2_commit_trans(osb, handle); |
ccd979bd | 434 | |
e63aecb6 | 435 | ocfs2_inode_unlock(dir, 1); |
547ba7c8 JB |
436 | if (did_block_signals) |
437 | ocfs2_unblock_signals(&oldset); | |
e3a82138 | 438 | |
ccd979bd MF |
439 | if (status == -ENOSPC) |
440 | mlog(0, "Disk is full\n"); | |
441 | ||
a81cb88b | 442 | brelse(new_fe_bh); |
a81cb88b | 443 | brelse(parent_fe_bh); |
534eaddd TY |
444 | kfree(si.name); |
445 | kfree(si.value); | |
ccd979bd | 446 | |
4a12ca3a MF |
447 | ocfs2_free_dir_lookup_result(&lookup); |
448 | ||
ccd979bd MF |
449 | if (inode_ac) |
450 | ocfs2_free_alloc_context(inode_ac); | |
451 | ||
452 | if (data_ac) | |
453 | ocfs2_free_alloc_context(data_ac); | |
454 | ||
9b7895ef MF |
455 | if (meta_ac) |
456 | ocfs2_free_alloc_context(meta_ac); | |
534eaddd | 457 | |
062d3403 LD |
458 | /* |
459 | * We should call iput after the i_mutex of the bitmap been | |
460 | * unlocked in ocfs2_free_alloc_context, or the | |
461 | * ocfs2_delete_inode will mutex_lock again. | |
462 | */ | |
463 | if ((status < 0) && inode) { | |
464 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; | |
465 | clear_nlink(inode); | |
466 | iput(inode); | |
467 | } | |
468 | ||
c1e8d35e TM |
469 | if (status) |
470 | mlog_errno(status); | |
ccd979bd MF |
471 | |
472 | return status; | |
473 | } | |
474 | ||
021960ca MF |
475 | static int __ocfs2_mknod_locked(struct inode *dir, |
476 | struct inode *inode, | |
477 | dev_t dev, | |
478 | struct buffer_head **new_fe_bh, | |
479 | struct buffer_head *parent_fe_bh, | |
480 | handle_t *handle, | |
481 | struct ocfs2_alloc_context *inode_ac, | |
482 | u64 fe_blkno, u64 suballoc_loc, u16 suballoc_bit) | |
ccd979bd MF |
483 | { |
484 | int status = 0; | |
021960ca | 485 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
ccd979bd MF |
486 | struct ocfs2_dinode *fe = NULL; |
487 | struct ocfs2_extent_list *fel; | |
9b7895ef | 488 | u16 feat; |
ccd979bd | 489 | |
ccd979bd | 490 | *new_fe_bh = NULL; |
ccd979bd | 491 | |
ccd979bd MF |
492 | /* populate as many fields early on as possible - many of |
493 | * these are used by the support functions here and in | |
494 | * callers. */ | |
495 | inode->i_ino = ino_from_blkno(osb->sb, fe_blkno); | |
496 | OCFS2_I(inode)->ip_blkno = fe_blkno; | |
ccd979bd MF |
497 | spin_lock(&osb->osb_lock); |
498 | inode->i_generation = osb->s_next_generation++; | |
499 | spin_unlock(&osb->osb_lock); | |
500 | ||
501 | *new_fe_bh = sb_getblk(osb->sb, fe_blkno); | |
502 | if (!*new_fe_bh) { | |
503 | status = -EIO; | |
504 | mlog_errno(status); | |
505 | goto leave; | |
506 | } | |
8cb471e8 | 507 | ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), *new_fe_bh); |
ccd979bd | 508 | |
0cf2f763 JB |
509 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), |
510 | *new_fe_bh, | |
13723d00 | 511 | OCFS2_JOURNAL_ACCESS_CREATE); |
ccd979bd MF |
512 | if (status < 0) { |
513 | mlog_errno(status); | |
514 | goto leave; | |
515 | } | |
516 | ||
517 | fe = (struct ocfs2_dinode *) (*new_fe_bh)->b_data; | |
518 | memset(fe, 0, osb->sb->s_blocksize); | |
519 | ||
520 | fe->i_generation = cpu_to_le32(inode->i_generation); | |
521 | fe->i_fs_generation = cpu_to_le32(osb->fs_generation); | |
522 | fe->i_blkno = cpu_to_le64(fe_blkno); | |
2b6cb576 | 523 | fe->i_suballoc_loc = cpu_to_le64(suballoc_loc); |
ccd979bd | 524 | fe->i_suballoc_bit = cpu_to_le16(suballoc_bit); |
4d0ddb2c | 525 | fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot); |
f5d36202 TY |
526 | fe->i_uid = cpu_to_le32(inode->i_uid); |
527 | fe->i_gid = cpu_to_le32(inode->i_gid); | |
528 | fe->i_mode = cpu_to_le16(inode->i_mode); | |
529 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) | |
ccd979bd | 530 | fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev)); |
198a1ca3 MF |
531 | |
532 | ocfs2_set_links_count(fe, inode->i_nlink); | |
ccd979bd MF |
533 | |
534 | fe->i_last_eb_blk = 0; | |
535 | strcpy(fe->i_signature, OCFS2_INODE_SIGNATURE); | |
536 | le32_add_cpu(&fe->i_flags, OCFS2_VALID_FL); | |
537 | fe->i_atime = fe->i_ctime = fe->i_mtime = | |
538 | cpu_to_le64(CURRENT_TIME.tv_sec); | |
539 | fe->i_mtime_nsec = fe->i_ctime_nsec = fe->i_atime_nsec = | |
540 | cpu_to_le32(CURRENT_TIME.tv_nsec); | |
541 | fe->i_dtime = 0; | |
542 | ||
5b6a3a2b | 543 | /* |
9b7895ef MF |
544 | * If supported, directories start with inline data. If inline |
545 | * isn't supported, but indexing is, we start them as indexed. | |
5b6a3a2b | 546 | */ |
9b7895ef | 547 | feat = le16_to_cpu(fe->i_dyn_features); |
f5d36202 | 548 | if (S_ISDIR(inode->i_mode) && ocfs2_supports_inline_data(osb)) { |
5b6a3a2b MF |
549 | fe->i_dyn_features = cpu_to_le16(feat | OCFS2_INLINE_DATA_FL); |
550 | ||
d9ae49d6 TY |
551 | fe->id2.i_data.id_count = cpu_to_le16( |
552 | ocfs2_max_inline_data_with_xattr(osb->sb, fe)); | |
5b6a3a2b MF |
553 | } else { |
554 | fel = &fe->id2.i_list; | |
555 | fel->l_tree_depth = 0; | |
556 | fel->l_next_free_rec = 0; | |
557 | fel->l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(osb->sb)); | |
558 | } | |
ccd979bd | 559 | |
ec20cec7 | 560 | ocfs2_journal_dirty(handle, *new_fe_bh); |
ccd979bd | 561 | |
b657c95c | 562 | ocfs2_populate_inode(inode, fe, 1); |
0cf2f763 | 563 | ocfs2_ci_set_new(osb, INODE_CACHE(inode)); |
c271c5c2 SM |
564 | if (!ocfs2_mount_local(osb)) { |
565 | status = ocfs2_create_new_inode_locks(inode); | |
566 | if (status < 0) | |
567 | mlog_errno(status); | |
568 | } | |
ccd979bd MF |
569 | |
570 | status = 0; /* error in ocfs2_create_new_inode_locks is not | |
571 | * critical */ | |
572 | ||
ccd979bd MF |
573 | leave: |
574 | if (status < 0) { | |
575 | if (*new_fe_bh) { | |
576 | brelse(*new_fe_bh); | |
577 | *new_fe_bh = NULL; | |
578 | } | |
ccd979bd MF |
579 | } |
580 | ||
c1e8d35e TM |
581 | if (status) |
582 | mlog_errno(status); | |
ccd979bd MF |
583 | return status; |
584 | } | |
585 | ||
021960ca MF |
586 | static int ocfs2_mknod_locked(struct ocfs2_super *osb, |
587 | struct inode *dir, | |
588 | struct inode *inode, | |
589 | dev_t dev, | |
590 | struct buffer_head **new_fe_bh, | |
591 | struct buffer_head *parent_fe_bh, | |
592 | handle_t *handle, | |
593 | struct ocfs2_alloc_context *inode_ac) | |
594 | { | |
595 | int status = 0; | |
596 | u64 suballoc_loc, fe_blkno = 0; | |
597 | u16 suballoc_bit; | |
598 | ||
599 | *new_fe_bh = NULL; | |
600 | ||
601 | status = ocfs2_claim_new_inode(handle, dir, parent_fe_bh, | |
602 | inode_ac, &suballoc_loc, | |
603 | &suballoc_bit, &fe_blkno); | |
604 | if (status < 0) { | |
605 | mlog_errno(status); | |
606 | return status; | |
607 | } | |
608 | ||
609 | return __ocfs2_mknod_locked(dir, inode, dev, new_fe_bh, | |
610 | parent_fe_bh, handle, inode_ac, | |
611 | fe_blkno, suballoc_loc, suballoc_bit); | |
612 | } | |
613 | ||
ccd979bd MF |
614 | static int ocfs2_mkdir(struct inode *dir, |
615 | struct dentry *dentry, | |
616 | int mode) | |
617 | { | |
618 | int ret; | |
619 | ||
ef6b689b TM |
620 | mlog(0, "(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, mode, |
621 | dentry->d_name.len, dentry->d_name.name); | |
ccd979bd | 622 | ret = ocfs2_mknod(dir, dentry, mode | S_IFDIR, 0); |
c1e8d35e TM |
623 | if (ret) |
624 | mlog_errno(ret); | |
ccd979bd MF |
625 | |
626 | return ret; | |
627 | } | |
628 | ||
629 | static int ocfs2_create(struct inode *dir, | |
630 | struct dentry *dentry, | |
631 | int mode, | |
632 | struct nameidata *nd) | |
633 | { | |
634 | int ret; | |
635 | ||
ef6b689b TM |
636 | mlog(0, "(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, mode, |
637 | dentry->d_name.len, dentry->d_name.name); | |
ccd979bd | 638 | ret = ocfs2_mknod(dir, dentry, mode | S_IFREG, 0); |
c1e8d35e TM |
639 | if (ret) |
640 | mlog_errno(ret); | |
ccd979bd MF |
641 | |
642 | return ret; | |
643 | } | |
644 | ||
645 | static int ocfs2_link(struct dentry *old_dentry, | |
646 | struct inode *dir, | |
647 | struct dentry *dentry) | |
648 | { | |
1fabe148 | 649 | handle_t *handle; |
ccd979bd MF |
650 | struct inode *inode = old_dentry->d_inode; |
651 | int err; | |
652 | struct buffer_head *fe_bh = NULL; | |
653 | struct buffer_head *parent_fe_bh = NULL; | |
ccd979bd MF |
654 | struct ocfs2_dinode *fe = NULL; |
655 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); | |
4a12ca3a | 656 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
547ba7c8 | 657 | sigset_t oldset; |
ccd979bd | 658 | |
ef6b689b TM |
659 | mlog(0, "(inode=%lu, old='%.*s' new='%.*s')\n", inode->i_ino, |
660 | old_dentry->d_name.len, old_dentry->d_name.name, | |
661 | dentry->d_name.len, dentry->d_name.name); | |
ccd979bd | 662 | |
123a9643 MF |
663 | if (S_ISDIR(inode->i_mode)) |
664 | return -EPERM; | |
ccd979bd | 665 | |
871a2931 | 666 | dquot_initialize(dir); |
907f4554 | 667 | |
cb25797d | 668 | err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT); |
ccd979bd MF |
669 | if (err < 0) { |
670 | if (err != -ENOENT) | |
671 | mlog_errno(err); | |
123a9643 | 672 | return err; |
ccd979bd MF |
673 | } |
674 | ||
0f62de2c TY |
675 | if (!dir->i_nlink) { |
676 | err = -ENOENT; | |
123a9643 | 677 | goto out; |
0f62de2c TY |
678 | } |
679 | ||
ccd979bd MF |
680 | err = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, |
681 | dentry->d_name.len); | |
682 | if (err) | |
123a9643 | 683 | goto out; |
ccd979bd MF |
684 | |
685 | err = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, | |
686 | dentry->d_name.name, | |
4a12ca3a | 687 | dentry->d_name.len, &lookup); |
ccd979bd MF |
688 | if (err < 0) { |
689 | mlog_errno(err); | |
123a9643 | 690 | goto out; |
ccd979bd MF |
691 | } |
692 | ||
e63aecb6 | 693 | err = ocfs2_inode_lock(inode, &fe_bh, 1); |
ccd979bd MF |
694 | if (err < 0) { |
695 | if (err != -ENOENT) | |
696 | mlog_errno(err); | |
123a9643 | 697 | goto out; |
ccd979bd MF |
698 | } |
699 | ||
700 | fe = (struct ocfs2_dinode *) fe_bh->b_data; | |
198a1ca3 | 701 | if (ocfs2_read_links_count(fe) >= ocfs2_link_max(osb)) { |
ccd979bd | 702 | err = -EMLINK; |
123a9643 | 703 | goto out_unlock_inode; |
ccd979bd MF |
704 | } |
705 | ||
a90714c1 | 706 | handle = ocfs2_start_trans(osb, ocfs2_link_credits(osb->sb)); |
ccd979bd MF |
707 | if (IS_ERR(handle)) { |
708 | err = PTR_ERR(handle); | |
709 | handle = NULL; | |
710 | mlog_errno(err); | |
123a9643 | 711 | goto out_unlock_inode; |
ccd979bd MF |
712 | } |
713 | ||
547ba7c8 JB |
714 | /* Starting to change things, restart is no longer possible. */ |
715 | ocfs2_block_signals(&oldset); | |
716 | ||
0cf2f763 | 717 | err = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, |
13723d00 | 718 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
719 | if (err < 0) { |
720 | mlog_errno(err); | |
123a9643 | 721 | goto out_commit; |
ccd979bd MF |
722 | } |
723 | ||
d8c76e6f | 724 | inc_nlink(inode); |
ccd979bd | 725 | inode->i_ctime = CURRENT_TIME; |
198a1ca3 | 726 | ocfs2_set_links_count(fe, inode->i_nlink); |
ccd979bd MF |
727 | fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); |
728 | fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); | |
ec20cec7 | 729 | ocfs2_journal_dirty(handle, fe_bh); |
ccd979bd MF |
730 | |
731 | err = ocfs2_add_entry(handle, dentry, inode, | |
732 | OCFS2_I(inode)->ip_blkno, | |
4a12ca3a | 733 | parent_fe_bh, &lookup); |
ccd979bd | 734 | if (err) { |
198a1ca3 | 735 | ocfs2_add_links_count(fe, -1); |
9a53c3a7 | 736 | drop_nlink(inode); |
ccd979bd | 737 | mlog_errno(err); |
123a9643 | 738 | goto out_commit; |
ccd979bd MF |
739 | } |
740 | ||
0027dd5b | 741 | err = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); |
379dfe9d MF |
742 | if (err) { |
743 | mlog_errno(err); | |
123a9643 | 744 | goto out_commit; |
379dfe9d MF |
745 | } |
746 | ||
7de9c6ee | 747 | ihold(inode); |
ccd979bd | 748 | d_instantiate(dentry, inode); |
123a9643 MF |
749 | |
750 | out_commit: | |
02dc1af4 | 751 | ocfs2_commit_trans(osb, handle); |
547ba7c8 | 752 | ocfs2_unblock_signals(&oldset); |
123a9643 | 753 | out_unlock_inode: |
e63aecb6 | 754 | ocfs2_inode_unlock(inode, 1); |
123a9643 MF |
755 | |
756 | out: | |
e63aecb6 | 757 | ocfs2_inode_unlock(dir, 1); |
123a9643 | 758 | |
a81cb88b MF |
759 | brelse(fe_bh); |
760 | brelse(parent_fe_bh); | |
ccd979bd | 761 | |
4a12ca3a MF |
762 | ocfs2_free_dir_lookup_result(&lookup); |
763 | ||
c1e8d35e TM |
764 | if (err) |
765 | mlog_errno(err); | |
ccd979bd MF |
766 | |
767 | return err; | |
768 | } | |
769 | ||
379dfe9d MF |
770 | /* |
771 | * Takes and drops an exclusive lock on the given dentry. This will | |
772 | * force other nodes to drop it. | |
773 | */ | |
774 | static int ocfs2_remote_dentry_delete(struct dentry *dentry) | |
775 | { | |
776 | int ret; | |
777 | ||
778 | ret = ocfs2_dentry_lock(dentry, 1); | |
779 | if (ret) | |
780 | mlog_errno(ret); | |
781 | else | |
782 | ocfs2_dentry_unlock(dentry, 1); | |
783 | ||
784 | return ret; | |
785 | } | |
786 | ||
17ff7856 MF |
787 | static inline int inode_is_unlinkable(struct inode *inode) |
788 | { | |
789 | if (S_ISDIR(inode->i_mode)) { | |
790 | if (inode->i_nlink == 2) | |
791 | return 1; | |
792 | return 0; | |
793 | } | |
794 | ||
795 | if (inode->i_nlink == 1) | |
796 | return 1; | |
797 | return 0; | |
798 | } | |
799 | ||
ccd979bd MF |
800 | static int ocfs2_unlink(struct inode *dir, |
801 | struct dentry *dentry) | |
802 | { | |
803 | int status; | |
30a4f5e8 | 804 | int child_locked = 0; |
ccd979bd | 805 | struct inode *inode = dentry->d_inode; |
5098c27b | 806 | struct inode *orphan_dir = NULL; |
ccd979bd MF |
807 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
808 | u64 blkno; | |
809 | struct ocfs2_dinode *fe = NULL; | |
810 | struct buffer_head *fe_bh = NULL; | |
811 | struct buffer_head *parent_node_bh = NULL; | |
1fabe148 | 812 | handle_t *handle = NULL; |
ccd979bd | 813 | char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; |
4a12ca3a MF |
814 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
815 | struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; | |
ccd979bd | 816 | |
ef6b689b TM |
817 | mlog(0, "(0x%p, 0x%p, '%.*s')\n", dir, dentry, |
818 | dentry->d_name.len, dentry->d_name.name); | |
ccd979bd | 819 | |
871a2931 | 820 | dquot_initialize(dir); |
907f4554 | 821 | |
ccd979bd MF |
822 | BUG_ON(dentry->d_parent->d_inode != dir); |
823 | ||
b0697053 | 824 | mlog(0, "ino = %llu\n", (unsigned long long)OCFS2_I(inode)->ip_blkno); |
ccd979bd MF |
825 | |
826 | if (inode == osb->root_inode) { | |
827 | mlog(0, "Cannot delete the root directory\n"); | |
30a4f5e8 | 828 | return -EPERM; |
ccd979bd MF |
829 | } |
830 | ||
cb25797d JK |
831 | status = ocfs2_inode_lock_nested(dir, &parent_node_bh, 1, |
832 | OI_LS_PARENT); | |
ccd979bd MF |
833 | if (status < 0) { |
834 | if (status != -ENOENT) | |
835 | mlog_errno(status); | |
30a4f5e8 | 836 | return status; |
ccd979bd MF |
837 | } |
838 | ||
839 | status = ocfs2_find_files_on_disk(dentry->d_name.name, | |
4a12ca3a MF |
840 | dentry->d_name.len, &blkno, dir, |
841 | &lookup); | |
ccd979bd MF |
842 | if (status < 0) { |
843 | if (status != -ENOENT) | |
844 | mlog_errno(status); | |
845 | goto leave; | |
846 | } | |
847 | ||
848 | if (OCFS2_I(inode)->ip_blkno != blkno) { | |
849 | status = -ENOENT; | |
850 | ||
b0697053 MF |
851 | mlog(0, "ip_blkno %llu != dirent blkno %llu ip_flags = %x\n", |
852 | (unsigned long long)OCFS2_I(inode)->ip_blkno, | |
853 | (unsigned long long)blkno, OCFS2_I(inode)->ip_flags); | |
ccd979bd MF |
854 | goto leave; |
855 | } | |
856 | ||
e63aecb6 | 857 | status = ocfs2_inode_lock(inode, &fe_bh, 1); |
ccd979bd MF |
858 | if (status < 0) { |
859 | if (status != -ENOENT) | |
860 | mlog_errno(status); | |
861 | goto leave; | |
862 | } | |
30a4f5e8 | 863 | child_locked = 1; |
ccd979bd MF |
864 | |
865 | if (S_ISDIR(inode->i_mode)) { | |
b80b549c | 866 | if (inode->i_nlink != 2 || !ocfs2_empty_dir(inode)) { |
ccd979bd MF |
867 | status = -ENOTEMPTY; |
868 | goto leave; | |
869 | } | |
870 | } | |
871 | ||
379dfe9d | 872 | status = ocfs2_remote_dentry_delete(dentry); |
ccd979bd | 873 | if (status < 0) { |
34d024f8 | 874 | /* This remote delete should succeed under all normal |
ccd979bd MF |
875 | * circumstances. */ |
876 | mlog_errno(status); | |
877 | goto leave; | |
878 | } | |
879 | ||
17ff7856 | 880 | if (inode_is_unlinkable(inode)) { |
19bd341f TM |
881 | status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, |
882 | OCFS2_I(inode)->ip_blkno, | |
4a12ca3a | 883 | orphan_name, &orphan_insert); |
ccd979bd MF |
884 | if (status < 0) { |
885 | mlog_errno(status); | |
886 | goto leave; | |
887 | } | |
888 | } | |
889 | ||
a90714c1 | 890 | handle = ocfs2_start_trans(osb, ocfs2_unlink_credits(osb->sb)); |
ccd979bd MF |
891 | if (IS_ERR(handle)) { |
892 | status = PTR_ERR(handle); | |
893 | handle = NULL; | |
894 | mlog_errno(status); | |
895 | goto leave; | |
896 | } | |
897 | ||
0cf2f763 | 898 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, |
13723d00 | 899 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
900 | if (status < 0) { |
901 | mlog_errno(status); | |
902 | goto leave; | |
903 | } | |
904 | ||
905 | fe = (struct ocfs2_dinode *) fe_bh->b_data; | |
906 | ||
17ff7856 | 907 | if (inode_is_unlinkable(inode)) { |
3939fda4 | 908 | status = ocfs2_orphan_add(osb, handle, inode, fe_bh, orphan_name, |
4a12ca3a | 909 | &orphan_insert, orphan_dir); |
ccd979bd MF |
910 | if (status < 0) { |
911 | mlog_errno(status); | |
912 | goto leave; | |
913 | } | |
914 | } | |
915 | ||
916 | /* delete the name from the parent dir */ | |
4a12ca3a | 917 | status = ocfs2_delete_entry(handle, dir, &lookup); |
ccd979bd MF |
918 | if (status < 0) { |
919 | mlog_errno(status); | |
920 | goto leave; | |
921 | } | |
922 | ||
17ff7856 MF |
923 | if (S_ISDIR(inode->i_mode)) |
924 | drop_nlink(inode); | |
925 | drop_nlink(inode); | |
198a1ca3 | 926 | ocfs2_set_links_count(fe, inode->i_nlink); |
ec20cec7 | 927 | ocfs2_journal_dirty(handle, fe_bh); |
ccd979bd | 928 | |
592282cf MF |
929 | dir->i_ctime = dir->i_mtime = CURRENT_TIME; |
930 | if (S_ISDIR(inode->i_mode)) | |
17ff7856 | 931 | drop_nlink(dir); |
592282cf MF |
932 | |
933 | status = ocfs2_mark_inode_dirty(handle, dir, parent_node_bh); | |
934 | if (status < 0) { | |
935 | mlog_errno(status); | |
936 | if (S_ISDIR(inode->i_mode)) | |
d8c76e6f | 937 | inc_nlink(dir); |
ccd979bd MF |
938 | } |
939 | ||
940 | leave: | |
ccd979bd | 941 | if (handle) |
02dc1af4 | 942 | ocfs2_commit_trans(osb, handle); |
ccd979bd | 943 | |
30a4f5e8 | 944 | if (child_locked) |
e63aecb6 | 945 | ocfs2_inode_unlock(inode, 1); |
30a4f5e8 | 946 | |
e63aecb6 | 947 | ocfs2_inode_unlock(dir, 1); |
30a4f5e8 | 948 | |
5098c27b MF |
949 | if (orphan_dir) { |
950 | /* This was locked for us in ocfs2_prepare_orphan_dir() */ | |
e63aecb6 | 951 | ocfs2_inode_unlock(orphan_dir, 1); |
5098c27b MF |
952 | mutex_unlock(&orphan_dir->i_mutex); |
953 | iput(orphan_dir); | |
954 | } | |
955 | ||
a81cb88b | 956 | brelse(fe_bh); |
a81cb88b | 957 | brelse(parent_node_bh); |
4a12ca3a MF |
958 | |
959 | ocfs2_free_dir_lookup_result(&orphan_insert); | |
960 | ocfs2_free_dir_lookup_result(&lookup); | |
ccd979bd | 961 | |
c1e8d35e TM |
962 | if (status) |
963 | mlog_errno(status); | |
ccd979bd MF |
964 | |
965 | return status; | |
966 | } | |
967 | ||
968 | /* | |
969 | * The only place this should be used is rename! | |
970 | * if they have the same id, then the 1st one is the only one locked. | |
971 | */ | |
972 | static int ocfs2_double_lock(struct ocfs2_super *osb, | |
ccd979bd MF |
973 | struct buffer_head **bh1, |
974 | struct inode *inode1, | |
975 | struct buffer_head **bh2, | |
976 | struct inode *inode2) | |
977 | { | |
978 | int status; | |
979 | struct ocfs2_inode_info *oi1 = OCFS2_I(inode1); | |
980 | struct ocfs2_inode_info *oi2 = OCFS2_I(inode2); | |
981 | struct buffer_head **tmpbh; | |
982 | struct inode *tmpinode; | |
983 | ||
ef6b689b TM |
984 | mlog(0, "(inode1 = %llu, inode2 = %llu)\n", |
985 | (unsigned long long)oi1->ip_blkno, | |
986 | (unsigned long long)oi2->ip_blkno); | |
ccd979bd | 987 | |
ccd979bd MF |
988 | if (*bh1) |
989 | *bh1 = NULL; | |
990 | if (*bh2) | |
991 | *bh2 = NULL; | |
992 | ||
993 | /* we always want to lock the one with the lower lockid first. */ | |
994 | if (oi1->ip_blkno != oi2->ip_blkno) { | |
995 | if (oi1->ip_blkno < oi2->ip_blkno) { | |
996 | /* switch id1 and id2 around */ | |
997 | mlog(0, "switching them around...\n"); | |
998 | tmpbh = bh2; | |
999 | bh2 = bh1; | |
1000 | bh1 = tmpbh; | |
1001 | ||
1002 | tmpinode = inode2; | |
1003 | inode2 = inode1; | |
1004 | inode1 = tmpinode; | |
1005 | } | |
1006 | /* lock id2 */ | |
cb25797d JK |
1007 | status = ocfs2_inode_lock_nested(inode2, bh2, 1, |
1008 | OI_LS_RENAME1); | |
ccd979bd MF |
1009 | if (status < 0) { |
1010 | if (status != -ENOENT) | |
1011 | mlog_errno(status); | |
1012 | goto bail; | |
1013 | } | |
1014 | } | |
8d5596c6 | 1015 | |
ccd979bd | 1016 | /* lock id1 */ |
cb25797d | 1017 | status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2); |
ccd979bd | 1018 | if (status < 0) { |
8d5596c6 MF |
1019 | /* |
1020 | * An error return must mean that no cluster locks | |
1021 | * were held on function exit. | |
1022 | */ | |
1e6d9153 | 1023 | if (oi1->ip_blkno != oi2->ip_blkno) { |
e63aecb6 | 1024 | ocfs2_inode_unlock(inode2, 1); |
1e6d9153 TM |
1025 | brelse(*bh2); |
1026 | *bh2 = NULL; | |
1027 | } | |
8d5596c6 | 1028 | |
ccd979bd MF |
1029 | if (status != -ENOENT) |
1030 | mlog_errno(status); | |
ccd979bd | 1031 | } |
8d5596c6 | 1032 | |
ccd979bd | 1033 | bail: |
c1e8d35e TM |
1034 | if (status) |
1035 | mlog_errno(status); | |
ccd979bd MF |
1036 | return status; |
1037 | } | |
1038 | ||
8d5596c6 MF |
1039 | static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2) |
1040 | { | |
e63aecb6 | 1041 | ocfs2_inode_unlock(inode1, 1); |
8d5596c6 MF |
1042 | |
1043 | if (inode1 != inode2) | |
e63aecb6 | 1044 | ocfs2_inode_unlock(inode2, 1); |
8d5596c6 MF |
1045 | } |
1046 | ||
ccd979bd MF |
1047 | static int ocfs2_rename(struct inode *old_dir, |
1048 | struct dentry *old_dentry, | |
1049 | struct inode *new_dir, | |
1050 | struct dentry *new_dentry) | |
1051 | { | |
4a12ca3a MF |
1052 | int status = 0, rename_lock = 0, parents_locked = 0, target_exists = 0; |
1053 | int old_child_locked = 0, new_child_locked = 0, update_dot_dot = 0; | |
ccd979bd MF |
1054 | struct inode *old_inode = old_dentry->d_inode; |
1055 | struct inode *new_inode = new_dentry->d_inode; | |
5098c27b | 1056 | struct inode *orphan_dir = NULL; |
ccd979bd MF |
1057 | struct ocfs2_dinode *newfe = NULL; |
1058 | char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; | |
ccd979bd | 1059 | struct buffer_head *newfe_bh = NULL; |
592282cf | 1060 | struct buffer_head *old_inode_bh = NULL; |
ccd979bd | 1061 | struct ocfs2_super *osb = NULL; |
5b6a3a2b | 1062 | u64 newfe_blkno, old_de_ino; |
1fabe148 | 1063 | handle_t *handle = NULL; |
ccd979bd MF |
1064 | struct buffer_head *old_dir_bh = NULL; |
1065 | struct buffer_head *new_dir_bh = NULL; | |
592282cf | 1066 | nlink_t old_dir_nlink = old_dir->i_nlink; |
480214d7 | 1067 | struct ocfs2_dinode *old_di; |
4a12ca3a MF |
1068 | struct ocfs2_dir_lookup_result old_inode_dot_dot_res = { NULL, }; |
1069 | struct ocfs2_dir_lookup_result target_lookup_res = { NULL, }; | |
1070 | struct ocfs2_dir_lookup_result old_entry_lookup = { NULL, }; | |
1071 | struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; | |
1072 | struct ocfs2_dir_lookup_result target_insert = { NULL, }; | |
ccd979bd MF |
1073 | |
1074 | /* At some point it might be nice to break this function up a | |
1075 | * bit. */ | |
1076 | ||
ef6b689b TM |
1077 | mlog(0, "(0x%p, 0x%p, 0x%p, 0x%p, from='%.*s' to='%.*s')\n", |
1078 | old_dir, old_dentry, new_dir, new_dentry, | |
1079 | old_dentry->d_name.len, old_dentry->d_name.name, | |
1080 | new_dentry->d_name.len, new_dentry->d_name.name); | |
ccd979bd | 1081 | |
871a2931 CH |
1082 | dquot_initialize(old_dir); |
1083 | dquot_initialize(new_dir); | |
907f4554 | 1084 | |
ccd979bd MF |
1085 | osb = OCFS2_SB(old_dir->i_sb); |
1086 | ||
1087 | if (new_inode) { | |
1088 | if (!igrab(new_inode)) | |
1089 | BUG(); | |
1090 | } | |
1091 | ||
1b3c3714 | 1092 | /* Assume a directory hierarchy thusly: |
ccd979bd MF |
1093 | * a/b/c |
1094 | * a/d | |
1095 | * a,b,c, and d are all directories. | |
1096 | * | |
1097 | * from cwd of 'a' on both nodes: | |
1098 | * node1: mv b/c d | |
1099 | * node2: mv d b/c | |
1100 | * | |
1101 | * And that's why, just like the VFS, we need a file system | |
1102 | * rename lock. */ | |
5dabd695 | 1103 | if (old_dir != new_dir && S_ISDIR(old_inode->i_mode)) { |
ccd979bd MF |
1104 | status = ocfs2_rename_lock(osb); |
1105 | if (status < 0) { | |
1106 | mlog_errno(status); | |
1107 | goto bail; | |
1108 | } | |
1109 | rename_lock = 1; | |
1110 | } | |
1111 | ||
ccd979bd | 1112 | /* if old and new are the same, this'll just do one lock. */ |
8d5596c6 MF |
1113 | status = ocfs2_double_lock(osb, &old_dir_bh, old_dir, |
1114 | &new_dir_bh, new_dir); | |
ccd979bd MF |
1115 | if (status < 0) { |
1116 | mlog_errno(status); | |
1117 | goto bail; | |
1118 | } | |
8d5596c6 | 1119 | parents_locked = 1; |
ccd979bd MF |
1120 | |
1121 | /* make sure both dirs have bhs | |
1122 | * get an extra ref on old_dir_bh if old==new */ | |
1123 | if (!new_dir_bh) { | |
1124 | if (old_dir_bh) { | |
1125 | new_dir_bh = old_dir_bh; | |
1126 | get_bh(new_dir_bh); | |
1127 | } else { | |
1128 | mlog(ML_ERROR, "no old_dir_bh!\n"); | |
1129 | status = -EIO; | |
1130 | goto bail; | |
1131 | } | |
1132 | } | |
1133 | ||
379dfe9d | 1134 | /* |
592282cf | 1135 | * Aside from allowing a meta data update, the locking here |
34d024f8 MF |
1136 | * also ensures that the downconvert thread on other nodes |
1137 | * won't have to concurrently downconvert the inode and the | |
1138 | * dentry locks. | |
379dfe9d | 1139 | */ |
cb25797d JK |
1140 | status = ocfs2_inode_lock_nested(old_inode, &old_inode_bh, 1, |
1141 | OI_LS_PARENT); | |
379dfe9d MF |
1142 | if (status < 0) { |
1143 | if (status != -ENOENT) | |
ccd979bd | 1144 | mlog_errno(status); |
379dfe9d MF |
1145 | goto bail; |
1146 | } | |
8d5596c6 | 1147 | old_child_locked = 1; |
ccd979bd | 1148 | |
379dfe9d MF |
1149 | status = ocfs2_remote_dentry_delete(old_dentry); |
1150 | if (status < 0) { | |
1151 | mlog_errno(status); | |
1152 | goto bail; | |
1153 | } | |
1154 | ||
1155 | if (S_ISDIR(old_inode->i_mode)) { | |
38760e24 MF |
1156 | u64 old_inode_parent; |
1157 | ||
4a12ca3a | 1158 | update_dot_dot = 1; |
38760e24 | 1159 | status = ocfs2_find_files_on_disk("..", 2, &old_inode_parent, |
4a12ca3a MF |
1160 | old_inode, |
1161 | &old_inode_dot_dot_res); | |
38760e24 MF |
1162 | if (status) { |
1163 | status = -EIO; | |
ccd979bd | 1164 | goto bail; |
38760e24 | 1165 | } |
ccd979bd | 1166 | |
38760e24 MF |
1167 | if (old_inode_parent != OCFS2_I(old_dir)->ip_blkno) { |
1168 | status = -EIO; | |
ccd979bd | 1169 | goto bail; |
38760e24 MF |
1170 | } |
1171 | ||
1172 | if (!new_inode && new_dir != old_dir && | |
198a1ca3 | 1173 | new_dir->i_nlink >= ocfs2_link_max(osb)) { |
38760e24 | 1174 | status = -EMLINK; |
ccd979bd | 1175 | goto bail; |
38760e24 | 1176 | } |
ccd979bd MF |
1177 | } |
1178 | ||
5b6a3a2b MF |
1179 | status = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name, |
1180 | old_dentry->d_name.len, | |
1181 | &old_de_ino); | |
1182 | if (status) { | |
1183 | status = -ENOENT; | |
ccd979bd | 1184 | goto bail; |
5b6a3a2b | 1185 | } |
ccd979bd MF |
1186 | |
1187 | /* | |
1188 | * Check for inode number is _not_ due to possible IO errors. | |
1189 | * We might rmdir the source, keep it as pwd of some process | |
1190 | * and merrily kill the link to whatever was created under the | |
1191 | * same name. Goodbye sticky bit ;-< | |
1192 | */ | |
5b6a3a2b MF |
1193 | if (old_de_ino != OCFS2_I(old_inode)->ip_blkno) { |
1194 | status = -ENOENT; | |
ccd979bd | 1195 | goto bail; |
5b6a3a2b | 1196 | } |
ccd979bd MF |
1197 | |
1198 | /* check if the target already exists (in which case we need | |
1199 | * to delete it */ | |
1200 | status = ocfs2_find_files_on_disk(new_dentry->d_name.name, | |
1201 | new_dentry->d_name.len, | |
4a12ca3a MF |
1202 | &newfe_blkno, new_dir, |
1203 | &target_lookup_res); | |
ccd979bd MF |
1204 | /* The only error we allow here is -ENOENT because the new |
1205 | * file not existing is perfectly valid. */ | |
1206 | if ((status < 0) && (status != -ENOENT)) { | |
1207 | /* If we cannot find the file specified we should just */ | |
1208 | /* return the error... */ | |
1209 | mlog_errno(status); | |
1210 | goto bail; | |
1211 | } | |
4a12ca3a MF |
1212 | if (status == 0) |
1213 | target_exists = 1; | |
ccd979bd | 1214 | |
4a12ca3a | 1215 | if (!target_exists && new_inode) { |
e325a88f SE |
1216 | /* |
1217 | * Target was unlinked by another node while we were | |
1218 | * waiting to get to ocfs2_rename(). There isn't | |
1219 | * anything we can do here to help the situation, so | |
1220 | * bubble up the appropriate error. | |
1221 | */ | |
1222 | status = -ENOENT; | |
1223 | goto bail; | |
1224 | } | |
ccd979bd MF |
1225 | |
1226 | /* In case we need to overwrite an existing file, we blow it | |
1227 | * away first */ | |
4a12ca3a | 1228 | if (target_exists) { |
ccd979bd MF |
1229 | /* VFS didn't think there existed an inode here, but |
1230 | * someone else in the cluster must have raced our | |
1231 | * rename to create one. Today we error cleanly, in | |
1232 | * the future we should consider calling iget to build | |
1233 | * a new struct inode for this entry. */ | |
1234 | if (!new_inode) { | |
1235 | status = -EACCES; | |
1236 | ||
1237 | mlog(0, "We found an inode for name %.*s but VFS " | |
1238 | "didn't give us one.\n", new_dentry->d_name.len, | |
1239 | new_dentry->d_name.name); | |
1240 | goto bail; | |
1241 | } | |
1242 | ||
1243 | if (OCFS2_I(new_inode)->ip_blkno != newfe_blkno) { | |
1244 | status = -EACCES; | |
1245 | ||
b0697053 MF |
1246 | mlog(0, "Inode %llu and dir %llu disagree. flags = %x\n", |
1247 | (unsigned long long)OCFS2_I(new_inode)->ip_blkno, | |
1248 | (unsigned long long)newfe_blkno, | |
ccd979bd MF |
1249 | OCFS2_I(new_inode)->ip_flags); |
1250 | goto bail; | |
1251 | } | |
1252 | ||
e63aecb6 | 1253 | status = ocfs2_inode_lock(new_inode, &newfe_bh, 1); |
ccd979bd MF |
1254 | if (status < 0) { |
1255 | if (status != -ENOENT) | |
1256 | mlog_errno(status); | |
1257 | goto bail; | |
1258 | } | |
8d5596c6 | 1259 | new_child_locked = 1; |
ccd979bd | 1260 | |
379dfe9d | 1261 | status = ocfs2_remote_dentry_delete(new_dentry); |
ccd979bd MF |
1262 | if (status < 0) { |
1263 | mlog_errno(status); | |
1264 | goto bail; | |
1265 | } | |
1266 | ||
1267 | newfe = (struct ocfs2_dinode *) newfe_bh->b_data; | |
1268 | ||
4a12ca3a MF |
1269 | mlog(0, "aha rename over existing... new_blkno=%llu " |
1270 | "newfebh=%p bhblocknr=%llu\n", | |
b0697053 | 1271 | (unsigned long long)newfe_blkno, newfe_bh, newfe_bh ? |
ccd979bd MF |
1272 | (unsigned long long)newfe_bh->b_blocknr : 0ULL); |
1273 | ||
1274 | if (S_ISDIR(new_inode->i_mode) || (new_inode->i_nlink == 1)) { | |
5098c27b | 1275 | status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, |
19bd341f TM |
1276 | OCFS2_I(new_inode)->ip_blkno, |
1277 | orphan_name, &orphan_insert); | |
ccd979bd MF |
1278 | if (status < 0) { |
1279 | mlog_errno(status); | |
1280 | goto bail; | |
1281 | } | |
1282 | } | |
1283 | } else { | |
1284 | BUG_ON(new_dentry->d_parent->d_inode != new_dir); | |
1285 | ||
1286 | status = ocfs2_check_dir_for_entry(new_dir, | |
1287 | new_dentry->d_name.name, | |
1288 | new_dentry->d_name.len); | |
1289 | if (status) | |
1290 | goto bail; | |
1291 | ||
1292 | status = ocfs2_prepare_dir_for_insert(osb, new_dir, new_dir_bh, | |
1293 | new_dentry->d_name.name, | |
1294 | new_dentry->d_name.len, | |
4a12ca3a | 1295 | &target_insert); |
ccd979bd MF |
1296 | if (status < 0) { |
1297 | mlog_errno(status); | |
1298 | goto bail; | |
1299 | } | |
1300 | } | |
1301 | ||
a90714c1 | 1302 | handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); |
ccd979bd MF |
1303 | if (IS_ERR(handle)) { |
1304 | status = PTR_ERR(handle); | |
1305 | handle = NULL; | |
1306 | mlog_errno(status); | |
1307 | goto bail; | |
1308 | } | |
1309 | ||
4a12ca3a | 1310 | if (target_exists) { |
ccd979bd | 1311 | if (S_ISDIR(new_inode->i_mode)) { |
b80b549c MF |
1312 | if (new_inode->i_nlink != 2 || |
1313 | !ocfs2_empty_dir(new_inode)) { | |
ccd979bd MF |
1314 | status = -ENOTEMPTY; |
1315 | goto bail; | |
1316 | } | |
1317 | } | |
0cf2f763 JB |
1318 | status = ocfs2_journal_access_di(handle, INODE_CACHE(new_inode), |
1319 | newfe_bh, | |
13723d00 | 1320 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
1321 | if (status < 0) { |
1322 | mlog_errno(status); | |
1323 | goto bail; | |
1324 | } | |
1325 | ||
1326 | if (S_ISDIR(new_inode->i_mode) || | |
198a1ca3 | 1327 | (ocfs2_read_links_count(newfe) == 1)) { |
ccd979bd | 1328 | status = ocfs2_orphan_add(osb, handle, new_inode, |
3939fda4 | 1329 | newfe_bh, orphan_name, |
4a12ca3a | 1330 | &orphan_insert, orphan_dir); |
ccd979bd MF |
1331 | if (status < 0) { |
1332 | mlog_errno(status); | |
1333 | goto bail; | |
1334 | } | |
1335 | } | |
1336 | ||
1337 | /* change the dirent to point to the correct inode */ | |
4a12ca3a MF |
1338 | status = ocfs2_update_entry(new_dir, handle, &target_lookup_res, |
1339 | old_inode); | |
ccd979bd MF |
1340 | if (status < 0) { |
1341 | mlog_errno(status); | |
1342 | goto bail; | |
1343 | } | |
ccd979bd | 1344 | new_dir->i_version++; |
ccd979bd MF |
1345 | |
1346 | if (S_ISDIR(new_inode->i_mode)) | |
198a1ca3 | 1347 | ocfs2_set_links_count(newfe, 0); |
ccd979bd | 1348 | else |
198a1ca3 | 1349 | ocfs2_add_links_count(newfe, -1); |
ec20cec7 | 1350 | ocfs2_journal_dirty(handle, newfe_bh); |
ccd979bd MF |
1351 | } else { |
1352 | /* if the name was not found in new_dir, add it now */ | |
1353 | status = ocfs2_add_entry(handle, new_dentry, old_inode, | |
1354 | OCFS2_I(old_inode)->ip_blkno, | |
4a12ca3a | 1355 | new_dir_bh, &target_insert); |
ccd979bd MF |
1356 | } |
1357 | ||
1358 | old_inode->i_ctime = CURRENT_TIME; | |
1359 | mark_inode_dirty(old_inode); | |
480214d7 | 1360 | |
0cf2f763 JB |
1361 | status = ocfs2_journal_access_di(handle, INODE_CACHE(old_inode), |
1362 | old_inode_bh, | |
13723d00 | 1363 | OCFS2_JOURNAL_ACCESS_WRITE); |
480214d7 SM |
1364 | if (status >= 0) { |
1365 | old_di = (struct ocfs2_dinode *) old_inode_bh->b_data; | |
1366 | ||
1367 | old_di->i_ctime = cpu_to_le64(old_inode->i_ctime.tv_sec); | |
1368 | old_di->i_ctime_nsec = cpu_to_le32(old_inode->i_ctime.tv_nsec); | |
ec20cec7 | 1369 | ocfs2_journal_dirty(handle, old_inode_bh); |
480214d7 SM |
1370 | } else |
1371 | mlog_errno(status); | |
ccd979bd | 1372 | |
5b6a3a2b MF |
1373 | /* |
1374 | * Now that the name has been added to new_dir, remove the old name. | |
1375 | * | |
1376 | * We don't keep any directory entry context around until now | |
1377 | * because the insert might have changed the type of directory | |
1378 | * we're dealing with. | |
1379 | */ | |
4a12ca3a MF |
1380 | status = ocfs2_find_entry(old_dentry->d_name.name, |
1381 | old_dentry->d_name.len, old_dir, | |
1382 | &old_entry_lookup); | |
1383 | if (status) | |
5b6a3a2b | 1384 | goto bail; |
5b6a3a2b | 1385 | |
4a12ca3a | 1386 | status = ocfs2_delete_entry(handle, old_dir, &old_entry_lookup); |
ccd979bd MF |
1387 | if (status < 0) { |
1388 | mlog_errno(status); | |
1389 | goto bail; | |
1390 | } | |
1391 | ||
1392 | if (new_inode) { | |
1393 | new_inode->i_nlink--; | |
1394 | new_inode->i_ctime = CURRENT_TIME; | |
1395 | } | |
1396 | old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME; | |
4a12ca3a MF |
1397 | |
1398 | if (update_dot_dot) { | |
1399 | status = ocfs2_update_entry(old_inode, handle, | |
1400 | &old_inode_dot_dot_res, new_dir); | |
ccd979bd MF |
1401 | old_dir->i_nlink--; |
1402 | if (new_inode) { | |
1403 | new_inode->i_nlink--; | |
1404 | } else { | |
d8c76e6f | 1405 | inc_nlink(new_dir); |
ccd979bd MF |
1406 | mark_inode_dirty(new_dir); |
1407 | } | |
1408 | } | |
1409 | mark_inode_dirty(old_dir); | |
592282cf MF |
1410 | ocfs2_mark_inode_dirty(handle, old_dir, old_dir_bh); |
1411 | if (new_inode) { | |
ccd979bd | 1412 | mark_inode_dirty(new_inode); |
592282cf MF |
1413 | ocfs2_mark_inode_dirty(handle, new_inode, newfe_bh); |
1414 | } | |
ccd979bd | 1415 | |
592282cf MF |
1416 | if (old_dir != new_dir) { |
1417 | /* Keep the same times on both directories.*/ | |
1418 | new_dir->i_ctime = new_dir->i_mtime = old_dir->i_ctime; | |
1419 | ||
1420 | /* | |
1421 | * This will also pick up the i_nlink change from the | |
1422 | * block above. | |
1423 | */ | |
1424 | ocfs2_mark_inode_dirty(handle, new_dir, new_dir_bh); | |
1425 | } | |
ccd979bd MF |
1426 | |
1427 | if (old_dir_nlink != old_dir->i_nlink) { | |
1428 | if (!old_dir_bh) { | |
1429 | mlog(ML_ERROR, "need to change nlink for old dir " | |
b0697053 MF |
1430 | "%llu from %d to %d but bh is NULL!\n", |
1431 | (unsigned long long)OCFS2_I(old_dir)->ip_blkno, | |
1432 | (int)old_dir_nlink, old_dir->i_nlink); | |
ccd979bd MF |
1433 | } else { |
1434 | struct ocfs2_dinode *fe; | |
0cf2f763 JB |
1435 | status = ocfs2_journal_access_di(handle, |
1436 | INODE_CACHE(old_dir), | |
1437 | old_dir_bh, | |
1438 | OCFS2_JOURNAL_ACCESS_WRITE); | |
ccd979bd | 1439 | fe = (struct ocfs2_dinode *) old_dir_bh->b_data; |
198a1ca3 | 1440 | ocfs2_set_links_count(fe, old_dir->i_nlink); |
ec20cec7 | 1441 | ocfs2_journal_dirty(handle, old_dir_bh); |
ccd979bd MF |
1442 | } |
1443 | } | |
379dfe9d | 1444 | ocfs2_dentry_move(old_dentry, new_dentry, old_dir, new_dir); |
ccd979bd MF |
1445 | status = 0; |
1446 | bail: | |
1447 | if (rename_lock) | |
1448 | ocfs2_rename_unlock(osb); | |
1449 | ||
1450 | if (handle) | |
02dc1af4 | 1451 | ocfs2_commit_trans(osb, handle); |
ccd979bd | 1452 | |
8d5596c6 MF |
1453 | if (parents_locked) |
1454 | ocfs2_double_unlock(old_dir, new_dir); | |
1455 | ||
1456 | if (old_child_locked) | |
e63aecb6 | 1457 | ocfs2_inode_unlock(old_inode, 1); |
8d5596c6 MF |
1458 | |
1459 | if (new_child_locked) | |
e63aecb6 | 1460 | ocfs2_inode_unlock(new_inode, 1); |
8d5596c6 | 1461 | |
5098c27b MF |
1462 | if (orphan_dir) { |
1463 | /* This was locked for us in ocfs2_prepare_orphan_dir() */ | |
e63aecb6 | 1464 | ocfs2_inode_unlock(orphan_dir, 1); |
5098c27b MF |
1465 | mutex_unlock(&orphan_dir->i_mutex); |
1466 | iput(orphan_dir); | |
1467 | } | |
1468 | ||
ccd979bd MF |
1469 | if (new_inode) |
1470 | sync_mapping_buffers(old_inode->i_mapping); | |
1471 | ||
1472 | if (new_inode) | |
1473 | iput(new_inode); | |
4a12ca3a MF |
1474 | |
1475 | ocfs2_free_dir_lookup_result(&target_lookup_res); | |
1476 | ocfs2_free_dir_lookup_result(&old_entry_lookup); | |
1477 | ocfs2_free_dir_lookup_result(&old_inode_dot_dot_res); | |
1478 | ocfs2_free_dir_lookup_result(&orphan_insert); | |
1479 | ocfs2_free_dir_lookup_result(&target_insert); | |
1480 | ||
a81cb88b MF |
1481 | brelse(newfe_bh); |
1482 | brelse(old_inode_bh); | |
1483 | brelse(old_dir_bh); | |
1484 | brelse(new_dir_bh); | |
ccd979bd | 1485 | |
c1e8d35e TM |
1486 | if (status) |
1487 | mlog_errno(status); | |
ccd979bd MF |
1488 | |
1489 | return status; | |
1490 | } | |
1491 | ||
1492 | /* | |
1493 | * we expect i_size = strlen(symname). Copy symname into the file | |
1494 | * data, including the null terminator. | |
1495 | */ | |
1496 | static int ocfs2_create_symlink_data(struct ocfs2_super *osb, | |
1fabe148 | 1497 | handle_t *handle, |
ccd979bd MF |
1498 | struct inode *inode, |
1499 | const char *symname) | |
1500 | { | |
1501 | struct buffer_head **bhs = NULL; | |
1502 | const char *c; | |
1503 | struct super_block *sb = osb->sb; | |
4f902c37 | 1504 | u64 p_blkno, p_blocks; |
ccd979bd MF |
1505 | int virtual, blocks, status, i, bytes_left; |
1506 | ||
1507 | bytes_left = i_size_read(inode) + 1; | |
1508 | /* we can't trust i_blocks because we're actually going to | |
1509 | * write i_size + 1 bytes. */ | |
1510 | blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits; | |
1511 | ||
ef6b689b TM |
1512 | mlog(0, "i_blocks = %llu, i_size = %llu, blocks = %d\n", |
1513 | (unsigned long long)inode->i_blocks, | |
1514 | i_size_read(inode), blocks); | |
ccd979bd MF |
1515 | |
1516 | /* Sanity check -- make sure we're going to fit. */ | |
1517 | if (bytes_left > | |
1518 | ocfs2_clusters_to_bytes(sb, OCFS2_I(inode)->ip_clusters)) { | |
1519 | status = -EIO; | |
1520 | mlog_errno(status); | |
1521 | goto bail; | |
1522 | } | |
1523 | ||
1524 | bhs = kcalloc(blocks, sizeof(struct buffer_head *), GFP_KERNEL); | |
1525 | if (!bhs) { | |
1526 | status = -ENOMEM; | |
1527 | mlog_errno(status); | |
1528 | goto bail; | |
1529 | } | |
1530 | ||
49cb8d2d MF |
1531 | status = ocfs2_extent_map_get_blocks(inode, 0, &p_blkno, &p_blocks, |
1532 | NULL); | |
ccd979bd MF |
1533 | if (status < 0) { |
1534 | mlog_errno(status); | |
1535 | goto bail; | |
1536 | } | |
1537 | ||
1538 | /* links can never be larger than one cluster so we know this | |
1539 | * is all going to be contiguous, but do a sanity check | |
1540 | * anyway. */ | |
1541 | if ((p_blocks << sb->s_blocksize_bits) < bytes_left) { | |
1542 | status = -EIO; | |
1543 | mlog_errno(status); | |
1544 | goto bail; | |
1545 | } | |
1546 | ||
1547 | virtual = 0; | |
1548 | while(bytes_left > 0) { | |
1549 | c = &symname[virtual * sb->s_blocksize]; | |
1550 | ||
1551 | bhs[virtual] = sb_getblk(sb, p_blkno); | |
1552 | if (!bhs[virtual]) { | |
1553 | status = -ENOMEM; | |
1554 | mlog_errno(status); | |
1555 | goto bail; | |
1556 | } | |
8cb471e8 JB |
1557 | ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), |
1558 | bhs[virtual]); | |
ccd979bd | 1559 | |
0cf2f763 JB |
1560 | status = ocfs2_journal_access(handle, INODE_CACHE(inode), |
1561 | bhs[virtual], | |
ccd979bd MF |
1562 | OCFS2_JOURNAL_ACCESS_CREATE); |
1563 | if (status < 0) { | |
1564 | mlog_errno(status); | |
1565 | goto bail; | |
1566 | } | |
1567 | ||
1568 | memset(bhs[virtual]->b_data, 0, sb->s_blocksize); | |
1569 | ||
1570 | memcpy(bhs[virtual]->b_data, c, | |
1571 | (bytes_left > sb->s_blocksize) ? sb->s_blocksize : | |
1572 | bytes_left); | |
1573 | ||
ec20cec7 | 1574 | ocfs2_journal_dirty(handle, bhs[virtual]); |
ccd979bd MF |
1575 | |
1576 | virtual++; | |
1577 | p_blkno++; | |
1578 | bytes_left -= sb->s_blocksize; | |
1579 | } | |
1580 | ||
1581 | status = 0; | |
1582 | bail: | |
1583 | ||
1584 | if (bhs) { | |
1585 | for(i = 0; i < blocks; i++) | |
a81cb88b | 1586 | brelse(bhs[i]); |
ccd979bd MF |
1587 | kfree(bhs); |
1588 | } | |
1589 | ||
c1e8d35e TM |
1590 | if (status) |
1591 | mlog_errno(status); | |
ccd979bd MF |
1592 | return status; |
1593 | } | |
1594 | ||
1595 | static int ocfs2_symlink(struct inode *dir, | |
1596 | struct dentry *dentry, | |
1597 | const char *symname) | |
1598 | { | |
1599 | int status, l, credits; | |
1600 | u64 newsize; | |
1601 | struct ocfs2_super *osb = NULL; | |
1602 | struct inode *inode = NULL; | |
1603 | struct super_block *sb; | |
1604 | struct buffer_head *new_fe_bh = NULL; | |
ccd979bd MF |
1605 | struct buffer_head *parent_fe_bh = NULL; |
1606 | struct ocfs2_dinode *fe = NULL; | |
1607 | struct ocfs2_dinode *dirfe; | |
1fabe148 | 1608 | handle_t *handle = NULL; |
ccd979bd MF |
1609 | struct ocfs2_alloc_context *inode_ac = NULL; |
1610 | struct ocfs2_alloc_context *data_ac = NULL; | |
534eaddd TY |
1611 | struct ocfs2_alloc_context *xattr_ac = NULL; |
1612 | int want_clusters = 0; | |
1613 | int xattr_credits = 0; | |
1614 | struct ocfs2_security_xattr_info si = { | |
1615 | .enable = 1, | |
1616 | }; | |
a90714c1 | 1617 | int did_quota = 0, did_quota_inode = 0; |
4a12ca3a | 1618 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
547ba7c8 JB |
1619 | sigset_t oldset; |
1620 | int did_block_signals = 0; | |
ccd979bd | 1621 | |
ef6b689b TM |
1622 | mlog(0, "(0x%p, 0x%p, symname='%s' actual='%.*s')\n", dir, |
1623 | dentry, symname, dentry->d_name.len, dentry->d_name.name); | |
ccd979bd | 1624 | |
871a2931 | 1625 | dquot_initialize(dir); |
907f4554 | 1626 | |
ccd979bd MF |
1627 | sb = dir->i_sb; |
1628 | osb = OCFS2_SB(sb); | |
1629 | ||
1630 | l = strlen(symname) + 1; | |
1631 | ||
1632 | credits = ocfs2_calc_symlink_credits(sb); | |
1633 | ||
ccd979bd | 1634 | /* lock the parent directory */ |
e63aecb6 | 1635 | status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); |
ccd979bd MF |
1636 | if (status < 0) { |
1637 | if (status != -ENOENT) | |
1638 | mlog_errno(status); | |
6d8fc40e | 1639 | return status; |
ccd979bd MF |
1640 | } |
1641 | ||
1642 | dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; | |
198a1ca3 | 1643 | if (!ocfs2_read_links_count(dirfe)) { |
ccd979bd MF |
1644 | /* can't make a file in a deleted directory. */ |
1645 | status = -ENOENT; | |
1646 | goto bail; | |
1647 | } | |
1648 | ||
1649 | status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, | |
1650 | dentry->d_name.len); | |
1651 | if (status) | |
1652 | goto bail; | |
1653 | ||
1654 | status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, | |
1655 | dentry->d_name.name, | |
4a12ca3a | 1656 | dentry->d_name.len, &lookup); |
ccd979bd MF |
1657 | if (status < 0) { |
1658 | mlog_errno(status); | |
1659 | goto bail; | |
1660 | } | |
1661 | ||
da5cbf2f | 1662 | status = ocfs2_reserve_new_inode(osb, &inode_ac); |
ccd979bd MF |
1663 | if (status < 0) { |
1664 | if (status != -ENOSPC) | |
1665 | mlog_errno(status); | |
1666 | goto bail; | |
1667 | } | |
1668 | ||
f5d36202 TY |
1669 | inode = ocfs2_get_init_inode(dir, S_IFLNK | S_IRWXUGO); |
1670 | if (!inode) { | |
1671 | status = -ENOMEM; | |
1672 | mlog_errno(status); | |
1673 | goto bail; | |
1674 | } | |
1675 | ||
534eaddd TY |
1676 | /* get security xattr */ |
1677 | status = ocfs2_init_security_get(inode, dir, &si); | |
1678 | if (status) { | |
1679 | if (status == -EOPNOTSUPP) | |
1680 | si.enable = 0; | |
1681 | else { | |
1682 | mlog_errno(status); | |
1683 | goto bail; | |
1684 | } | |
1685 | } | |
1686 | ||
1687 | /* calculate meta data/clusters for setting security xattr */ | |
1688 | if (si.enable) { | |
1689 | status = ocfs2_calc_security_init(dir, &si, &want_clusters, | |
1690 | &xattr_credits, &xattr_ac); | |
ccd979bd | 1691 | if (status < 0) { |
534eaddd | 1692 | mlog_errno(status); |
ccd979bd MF |
1693 | goto bail; |
1694 | } | |
1695 | } | |
1696 | ||
534eaddd TY |
1697 | /* don't reserve bitmap space for fast symlinks. */ |
1698 | if (l > ocfs2_fast_symlink_chars(sb)) | |
1699 | want_clusters += 1; | |
1700 | ||
1701 | status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); | |
1702 | if (status < 0) { | |
1703 | if (status != -ENOSPC) | |
1704 | mlog_errno(status); | |
1705 | goto bail; | |
1706 | } | |
1707 | ||
1708 | handle = ocfs2_start_trans(osb, credits + xattr_credits); | |
ccd979bd MF |
1709 | if (IS_ERR(handle)) { |
1710 | status = PTR_ERR(handle); | |
1711 | handle = NULL; | |
1712 | mlog_errno(status); | |
1713 | goto bail; | |
1714 | } | |
1715 | ||
547ba7c8 JB |
1716 | /* Starting to change things, restart is no longer possible. */ |
1717 | ocfs2_block_signals(&oldset); | |
1718 | did_block_signals = 1; | |
1719 | ||
63936dda CH |
1720 | status = dquot_alloc_inode(inode); |
1721 | if (status) | |
a90714c1 | 1722 | goto bail; |
a90714c1 JK |
1723 | did_quota_inode = 1; |
1724 | ||
ef6b689b TM |
1725 | mlog(0, "(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry, |
1726 | inode->i_mode, dentry->d_name.len, | |
1727 | dentry->d_name.name); | |
19bd341f TM |
1728 | |
1729 | status = ocfs2_mknod_locked(osb, dir, inode, | |
f5d36202 TY |
1730 | 0, &new_fe_bh, parent_fe_bh, handle, |
1731 | inode_ac); | |
ccd979bd MF |
1732 | if (status < 0) { |
1733 | mlog_errno(status); | |
1734 | goto bail; | |
1735 | } | |
1736 | ||
1737 | fe = (struct ocfs2_dinode *) new_fe_bh->b_data; | |
1738 | inode->i_rdev = 0; | |
1739 | newsize = l - 1; | |
1740 | if (l > ocfs2_fast_symlink_chars(sb)) { | |
dcd0538f MF |
1741 | u32 offset = 0; |
1742 | ||
ccd979bd | 1743 | inode->i_op = &ocfs2_symlink_inode_operations; |
5dd4056d CH |
1744 | status = dquot_alloc_space_nodirty(inode, |
1745 | ocfs2_clusters_to_bytes(osb->sb, 1)); | |
1746 | if (status) | |
a90714c1 | 1747 | goto bail; |
a90714c1 | 1748 | did_quota = 1; |
0eb8d47e TM |
1749 | status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0, |
1750 | new_fe_bh, | |
1751 | handle, data_ac, NULL, | |
1752 | NULL); | |
ccd979bd MF |
1753 | if (status < 0) { |
1754 | if (status != -ENOSPC && status != -EINTR) { | |
b0697053 MF |
1755 | mlog(ML_ERROR, |
1756 | "Failed to extend file to %llu\n", | |
1757 | (unsigned long long)newsize); | |
ccd979bd MF |
1758 | mlog_errno(status); |
1759 | status = -ENOSPC; | |
1760 | } | |
1761 | goto bail; | |
1762 | } | |
1763 | i_size_write(inode, newsize); | |
8110b073 | 1764 | inode->i_blocks = ocfs2_inode_sector_count(inode); |
ccd979bd MF |
1765 | } else { |
1766 | inode->i_op = &ocfs2_fast_symlink_inode_operations; | |
1767 | memcpy((char *) fe->id2.i_symlink, symname, l); | |
1768 | i_size_write(inode, newsize); | |
1769 | inode->i_blocks = 0; | |
1770 | } | |
1771 | ||
1772 | status = ocfs2_mark_inode_dirty(handle, inode, new_fe_bh); | |
1773 | if (status < 0) { | |
1774 | mlog_errno(status); | |
1775 | goto bail; | |
1776 | } | |
1777 | ||
1778 | if (!ocfs2_inode_is_fast_symlink(inode)) { | |
1779 | status = ocfs2_create_symlink_data(osb, handle, inode, | |
1780 | symname); | |
1781 | if (status < 0) { | |
1782 | mlog_errno(status); | |
1783 | goto bail; | |
1784 | } | |
1785 | } | |
1786 | ||
534eaddd TY |
1787 | if (si.enable) { |
1788 | status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, | |
1789 | xattr_ac, data_ac); | |
1790 | if (status < 0) { | |
1791 | mlog_errno(status); | |
1792 | goto bail; | |
1793 | } | |
1794 | } | |
1795 | ||
a9743fcd MF |
1796 | /* |
1797 | * Do this before adding the entry to the directory. We add | |
1798 | * also set d_op after success so that ->d_iput() will cleanup | |
1799 | * the dentry lock even if ocfs2_add_entry() fails below. | |
1800 | */ | |
1801 | status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); | |
1802 | if (status) { | |
ccd979bd MF |
1803 | mlog_errno(status); |
1804 | goto bail; | |
1805 | } | |
1806 | ||
a9743fcd MF |
1807 | status = ocfs2_add_entry(handle, dentry, inode, |
1808 | le64_to_cpu(fe->i_blkno), parent_fe_bh, | |
1809 | &lookup); | |
1810 | if (status < 0) { | |
379dfe9d MF |
1811 | mlog_errno(status); |
1812 | goto bail; | |
1813 | } | |
1814 | ||
ccd979bd | 1815 | insert_inode_hash(inode); |
ccd979bd MF |
1816 | d_instantiate(dentry, inode); |
1817 | bail: | |
a90714c1 | 1818 | if (status < 0 && did_quota) |
5dd4056d | 1819 | dquot_free_space_nodirty(inode, |
a90714c1 JK |
1820 | ocfs2_clusters_to_bytes(osb->sb, 1)); |
1821 | if (status < 0 && did_quota_inode) | |
63936dda | 1822 | dquot_free_inode(inode); |
ccd979bd | 1823 | if (handle) |
02dc1af4 | 1824 | ocfs2_commit_trans(osb, handle); |
6d8fc40e | 1825 | |
e63aecb6 | 1826 | ocfs2_inode_unlock(dir, 1); |
547ba7c8 JB |
1827 | if (did_block_signals) |
1828 | ocfs2_unblock_signals(&oldset); | |
6d8fc40e | 1829 | |
a81cb88b MF |
1830 | brelse(new_fe_bh); |
1831 | brelse(parent_fe_bh); | |
534eaddd TY |
1832 | kfree(si.name); |
1833 | kfree(si.value); | |
4a12ca3a | 1834 | ocfs2_free_dir_lookup_result(&lookup); |
ccd979bd MF |
1835 | if (inode_ac) |
1836 | ocfs2_free_alloc_context(inode_ac); | |
1837 | if (data_ac) | |
1838 | ocfs2_free_alloc_context(data_ac); | |
534eaddd TY |
1839 | if (xattr_ac) |
1840 | ocfs2_free_alloc_context(xattr_ac); | |
f5d36202 | 1841 | if ((status < 0) && inode) { |
ab41fdc8 | 1842 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; |
f5d36202 | 1843 | clear_nlink(inode); |
ccd979bd | 1844 | iput(inode); |
f5d36202 | 1845 | } |
ccd979bd | 1846 | |
c1e8d35e TM |
1847 | if (status) |
1848 | mlog_errno(status); | |
ccd979bd MF |
1849 | |
1850 | return status; | |
1851 | } | |
1852 | ||
ccd979bd MF |
1853 | static int ocfs2_blkno_stringify(u64 blkno, char *name) |
1854 | { | |
1855 | int status, namelen; | |
1856 | ||
b0697053 MF |
1857 | namelen = snprintf(name, OCFS2_ORPHAN_NAMELEN + 1, "%016llx", |
1858 | (long long)blkno); | |
ccd979bd MF |
1859 | if (namelen <= 0) { |
1860 | if (namelen) | |
1861 | status = namelen; | |
1862 | else | |
1863 | status = -EINVAL; | |
1864 | mlog_errno(status); | |
1865 | goto bail; | |
1866 | } | |
1867 | if (namelen != OCFS2_ORPHAN_NAMELEN) { | |
1868 | status = -EINVAL; | |
1869 | mlog_errno(status); | |
1870 | goto bail; | |
1871 | } | |
1872 | ||
1873 | mlog(0, "built filename '%s' for orphan dir (len=%d)\n", name, | |
1874 | namelen); | |
1875 | ||
1876 | status = 0; | |
1877 | bail: | |
c1e8d35e TM |
1878 | if (status < 0) |
1879 | mlog_errno(status); | |
ccd979bd MF |
1880 | return status; |
1881 | } | |
1882 | ||
dd43bcde MF |
1883 | static int ocfs2_lookup_lock_orphan_dir(struct ocfs2_super *osb, |
1884 | struct inode **ret_orphan_dir, | |
1885 | struct buffer_head **ret_orphan_dir_bh) | |
ccd979bd | 1886 | { |
5098c27b | 1887 | struct inode *orphan_dir_inode; |
ccd979bd | 1888 | struct buffer_head *orphan_dir_bh = NULL; |
dd43bcde | 1889 | int ret = 0; |
ccd979bd MF |
1890 | |
1891 | orphan_dir_inode = ocfs2_get_system_file_inode(osb, | |
1892 | ORPHAN_DIR_SYSTEM_INODE, | |
1893 | osb->slot_num); | |
1894 | if (!orphan_dir_inode) { | |
dd43bcde MF |
1895 | ret = -ENOENT; |
1896 | mlog_errno(ret); | |
1897 | return ret; | |
ccd979bd MF |
1898 | } |
1899 | ||
5098c27b MF |
1900 | mutex_lock(&orphan_dir_inode->i_mutex); |
1901 | ||
dd43bcde MF |
1902 | ret = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); |
1903 | if (ret < 0) { | |
1904 | mutex_unlock(&orphan_dir_inode->i_mutex); | |
1905 | iput(orphan_dir_inode); | |
1906 | ||
1907 | mlog_errno(ret); | |
1908 | return ret; | |
ccd979bd MF |
1909 | } |
1910 | ||
dd43bcde MF |
1911 | *ret_orphan_dir = orphan_dir_inode; |
1912 | *ret_orphan_dir_bh = orphan_dir_bh; | |
5098c27b | 1913 | |
dd43bcde MF |
1914 | return 0; |
1915 | } | |
1916 | ||
1917 | static int __ocfs2_prepare_orphan_dir(struct inode *orphan_dir_inode, | |
1918 | struct buffer_head *orphan_dir_bh, | |
1919 | u64 blkno, | |
1920 | char *name, | |
1921 | struct ocfs2_dir_lookup_result *lookup) | |
1922 | { | |
1923 | int ret; | |
1924 | struct ocfs2_super *osb = OCFS2_SB(orphan_dir_inode->i_sb); | |
1925 | ||
1926 | ret = ocfs2_blkno_stringify(blkno, name); | |
1927 | if (ret < 0) { | |
1928 | mlog_errno(ret); | |
1929 | return ret; | |
1930 | } | |
1931 | ||
1932 | ret = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode, | |
1933 | orphan_dir_bh, name, | |
1934 | OCFS2_ORPHAN_NAMELEN, lookup); | |
1935 | if (ret < 0) { | |
1936 | mlog_errno(ret); | |
1937 | return ret; | |
1938 | } | |
1939 | ||
1940 | return 0; | |
1941 | } | |
1942 | ||
1943 | /** | |
1944 | * ocfs2_prepare_orphan_dir() - Prepare an orphan directory for | |
1945 | * insertion of an orphan. | |
1946 | * @osb: ocfs2 file system | |
1947 | * @ret_orphan_dir: Orphan dir inode - returned locked! | |
1948 | * @blkno: Actual block number of the inode to be inserted into orphan dir. | |
1949 | * @lookup: dir lookup result, to be passed back into functions like | |
1950 | * ocfs2_orphan_add | |
1951 | * | |
1952 | * Returns zero on success and the ret_orphan_dir, name and lookup | |
1953 | * fields will be populated. | |
1954 | * | |
1955 | * Returns non-zero on failure. | |
1956 | */ | |
1957 | static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, | |
1958 | struct inode **ret_orphan_dir, | |
1959 | u64 blkno, | |
1960 | char *name, | |
1961 | struct ocfs2_dir_lookup_result *lookup) | |
1962 | { | |
1963 | struct inode *orphan_dir_inode = NULL; | |
1964 | struct buffer_head *orphan_dir_bh = NULL; | |
1965 | int ret = 0; | |
1966 | ||
1967 | ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir_inode, | |
1968 | &orphan_dir_bh); | |
1969 | if (ret < 0) { | |
1970 | mlog_errno(ret); | |
1971 | return ret; | |
1972 | } | |
1973 | ||
1974 | ret = __ocfs2_prepare_orphan_dir(orphan_dir_inode, orphan_dir_bh, | |
1975 | blkno, name, lookup); | |
1976 | if (ret < 0) { | |
1977 | mlog_errno(ret); | |
1978 | goto out; | |
ccd979bd MF |
1979 | } |
1980 | ||
5098c27b MF |
1981 | *ret_orphan_dir = orphan_dir_inode; |
1982 | ||
dd43bcde MF |
1983 | out: |
1984 | brelse(orphan_dir_bh); | |
1985 | ||
1986 | if (ret) { | |
1987 | ocfs2_inode_unlock(orphan_dir_inode, 1); | |
5098c27b | 1988 | mutex_unlock(&orphan_dir_inode->i_mutex); |
ccd979bd | 1989 | iput(orphan_dir_inode); |
5098c27b | 1990 | } |
ccd979bd | 1991 | |
c1e8d35e TM |
1992 | if (ret) |
1993 | mlog_errno(ret); | |
dd43bcde | 1994 | return ret; |
ccd979bd MF |
1995 | } |
1996 | ||
1997 | static int ocfs2_orphan_add(struct ocfs2_super *osb, | |
1fabe148 | 1998 | handle_t *handle, |
ccd979bd | 1999 | struct inode *inode, |
3939fda4 | 2000 | struct buffer_head *fe_bh, |
ccd979bd | 2001 | char *name, |
4a12ca3a | 2002 | struct ocfs2_dir_lookup_result *lookup, |
5098c27b | 2003 | struct inode *orphan_dir_inode) |
ccd979bd | 2004 | { |
ccd979bd MF |
2005 | struct buffer_head *orphan_dir_bh = NULL; |
2006 | int status = 0; | |
2007 | struct ocfs2_dinode *orphan_fe; | |
3939fda4 | 2008 | struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data; |
ccd979bd | 2009 | |
ef6b689b | 2010 | mlog(0, "(inode->i_ino = %lu)\n", inode->i_ino); |
ccd979bd | 2011 | |
b657c95c | 2012 | status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh); |
ccd979bd MF |
2013 | if (status < 0) { |
2014 | mlog_errno(status); | |
2015 | goto leave; | |
2016 | } | |
2017 | ||
0cf2f763 JB |
2018 | status = ocfs2_journal_access_di(handle, |
2019 | INODE_CACHE(orphan_dir_inode), | |
2020 | orphan_dir_bh, | |
13723d00 | 2021 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
2022 | if (status < 0) { |
2023 | mlog_errno(status); | |
2024 | goto leave; | |
2025 | } | |
2026 | ||
2027 | /* we're a cluster, and nlink can change on disk from | |
2028 | * underneath us... */ | |
2029 | orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; | |
2030 | if (S_ISDIR(inode->i_mode)) | |
198a1ca3 MF |
2031 | ocfs2_add_links_count(orphan_fe, 1); |
2032 | orphan_dir_inode->i_nlink = ocfs2_read_links_count(orphan_fe); | |
ec20cec7 | 2033 | ocfs2_journal_dirty(handle, orphan_dir_bh); |
ccd979bd MF |
2034 | |
2035 | status = __ocfs2_add_entry(handle, orphan_dir_inode, name, | |
2036 | OCFS2_ORPHAN_NAMELEN, inode, | |
2037 | OCFS2_I(inode)->ip_blkno, | |
4a12ca3a | 2038 | orphan_dir_bh, lookup); |
ccd979bd MF |
2039 | if (status < 0) { |
2040 | mlog_errno(status); | |
2041 | goto leave; | |
2042 | } | |
2043 | ||
3939fda4 TY |
2044 | /* |
2045 | * We're going to journal the change of i_flags and i_orphaned_slot. | |
2046 | * It's safe anyway, though some callers may duplicate the journaling. | |
2047 | * Journaling within the func just make the logic look more | |
2048 | * straightforward. | |
2049 | */ | |
2050 | status = ocfs2_journal_access_di(handle, | |
2051 | INODE_CACHE(inode), | |
2052 | fe_bh, | |
2053 | OCFS2_JOURNAL_ACCESS_WRITE); | |
2054 | if (status < 0) { | |
2055 | mlog_errno(status); | |
2056 | goto leave; | |
2057 | } | |
2058 | ||
ccd979bd | 2059 | le32_add_cpu(&fe->i_flags, OCFS2_ORPHANED_FL); |
d4cd1871 | 2060 | OCFS2_I(inode)->ip_flags &= ~OCFS2_INODE_SKIP_ORPHAN_DIR; |
ccd979bd MF |
2061 | |
2062 | /* Record which orphan dir our inode now resides | |
2063 | * in. delete_inode will use this to determine which orphan | |
2064 | * dir to lock. */ | |
50008630 | 2065 | fe->i_orphaned_slot = cpu_to_le16(osb->slot_num); |
ccd979bd | 2066 | |
3939fda4 TY |
2067 | ocfs2_journal_dirty(handle, fe_bh); |
2068 | ||
b0697053 MF |
2069 | mlog(0, "Inode %llu orphaned in slot %d\n", |
2070 | (unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num); | |
ccd979bd MF |
2071 | |
2072 | leave: | |
a81cb88b | 2073 | brelse(orphan_dir_bh); |
ccd979bd | 2074 | |
c1e8d35e TM |
2075 | if (status) |
2076 | mlog_errno(status); | |
ccd979bd MF |
2077 | return status; |
2078 | } | |
2079 | ||
2080 | /* unlike orphan_add, we expect the orphan dir to already be locked here. */ | |
2081 | int ocfs2_orphan_del(struct ocfs2_super *osb, | |
1fabe148 | 2082 | handle_t *handle, |
ccd979bd MF |
2083 | struct inode *orphan_dir_inode, |
2084 | struct inode *inode, | |
2085 | struct buffer_head *orphan_dir_bh) | |
2086 | { | |
2087 | char name[OCFS2_ORPHAN_NAMELEN + 1]; | |
2088 | struct ocfs2_dinode *orphan_fe; | |
2089 | int status = 0; | |
4a12ca3a | 2090 | struct ocfs2_dir_lookup_result lookup = { NULL, }; |
ccd979bd | 2091 | |
ccd979bd MF |
2092 | status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name); |
2093 | if (status < 0) { | |
2094 | mlog_errno(status); | |
2095 | goto leave; | |
2096 | } | |
2097 | ||
b0697053 MF |
2098 | mlog(0, "removing '%s' from orphan dir %llu (namelen=%d)\n", |
2099 | name, (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno, | |
2100 | OCFS2_ORPHAN_NAMELEN); | |
ccd979bd MF |
2101 | |
2102 | /* find it's spot in the orphan directory */ | |
4a12ca3a MF |
2103 | status = ocfs2_find_entry(name, OCFS2_ORPHAN_NAMELEN, orphan_dir_inode, |
2104 | &lookup); | |
2105 | if (status) { | |
ccd979bd MF |
2106 | mlog_errno(status); |
2107 | goto leave; | |
2108 | } | |
2109 | ||
2110 | /* remove it from the orphan directory */ | |
4a12ca3a | 2111 | status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup); |
ccd979bd MF |
2112 | if (status < 0) { |
2113 | mlog_errno(status); | |
2114 | goto leave; | |
2115 | } | |
2116 | ||
0cf2f763 JB |
2117 | status = ocfs2_journal_access_di(handle, |
2118 | INODE_CACHE(orphan_dir_inode), | |
2119 | orphan_dir_bh, | |
13723d00 | 2120 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
2121 | if (status < 0) { |
2122 | mlog_errno(status); | |
2123 | goto leave; | |
2124 | } | |
2125 | ||
2126 | /* do the i_nlink dance! :) */ | |
2127 | orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; | |
2128 | if (S_ISDIR(inode->i_mode)) | |
198a1ca3 MF |
2129 | ocfs2_add_links_count(orphan_fe, -1); |
2130 | orphan_dir_inode->i_nlink = ocfs2_read_links_count(orphan_fe); | |
ec20cec7 | 2131 | ocfs2_journal_dirty(handle, orphan_dir_bh); |
ccd979bd MF |
2132 | |
2133 | leave: | |
4a12ca3a | 2134 | ocfs2_free_dir_lookup_result(&lookup); |
ccd979bd | 2135 | |
c1e8d35e TM |
2136 | if (status) |
2137 | mlog_errno(status); | |
ccd979bd MF |
2138 | return status; |
2139 | } | |
2140 | ||
97b8f4a9 MF |
2141 | /** |
2142 | * ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to recieve a newly | |
2143 | * allocated file. This is different from the typical 'add to orphan dir' | |
2144 | * operation in that the inode does not yet exist. This is a problem because | |
2145 | * the orphan dir stringifies the inode block number to come up with it's | |
2146 | * dirent. Obviously if the inode does not yet exist we have a chicken and egg | |
2147 | * problem. This function works around it by calling deeper into the orphan | |
2148 | * and suballoc code than other callers. Use this only by necessity. | |
2149 | * @dir: The directory which this inode will ultimately wind up under - not the | |
2150 | * orphan dir! | |
2151 | * @dir_bh: buffer_head the @dir inode block | |
2152 | * @orphan_name: string of length (CFS2_ORPHAN_NAMELEN + 1). Will be filled | |
2153 | * with the string to be used for orphan dirent. Pass back to the orphan dir | |
2154 | * code. | |
2155 | * @ret_orphan_dir: orphan dir inode returned to be passed back into orphan | |
2156 | * dir code. | |
2157 | * @ret_di_blkno: block number where the new inode will be allocated. | |
2158 | * @orphan_insert: Dir insert context to be passed back into orphan dir code. | |
2159 | * @ret_inode_ac: Inode alloc context to be passed back to the allocator. | |
2160 | * | |
2161 | * Returns zero on success and the ret_orphan_dir, name and lookup | |
2162 | * fields will be populated. | |
2163 | * | |
2164 | * Returns non-zero on failure. | |
2165 | */ | |
2166 | static int ocfs2_prep_new_orphaned_file(struct inode *dir, | |
2167 | struct buffer_head *dir_bh, | |
2168 | char *orphan_name, | |
2169 | struct inode **ret_orphan_dir, | |
2170 | u64 *ret_di_blkno, | |
2171 | struct ocfs2_dir_lookup_result *orphan_insert, | |
2172 | struct ocfs2_alloc_context **ret_inode_ac) | |
2173 | { | |
2174 | int ret; | |
2175 | u64 di_blkno; | |
2176 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); | |
2177 | struct inode *orphan_dir = NULL; | |
2178 | struct buffer_head *orphan_dir_bh = NULL; | |
2179 | struct ocfs2_alloc_context *inode_ac = NULL; | |
2180 | ||
2181 | ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir, &orphan_dir_bh); | |
2182 | if (ret < 0) { | |
2183 | mlog_errno(ret); | |
2184 | return ret; | |
2185 | } | |
2186 | ||
2187 | /* reserve an inode spot */ | |
2188 | ret = ocfs2_reserve_new_inode(osb, &inode_ac); | |
2189 | if (ret < 0) { | |
2190 | if (ret != -ENOSPC) | |
2191 | mlog_errno(ret); | |
2192 | goto out; | |
2193 | } | |
2194 | ||
2195 | ret = ocfs2_find_new_inode_loc(dir, dir_bh, inode_ac, | |
2196 | &di_blkno); | |
2197 | if (ret) { | |
2198 | mlog_errno(ret); | |
2199 | goto out; | |
2200 | } | |
2201 | ||
2202 | ret = __ocfs2_prepare_orphan_dir(orphan_dir, orphan_dir_bh, | |
2203 | di_blkno, orphan_name, orphan_insert); | |
2204 | if (ret < 0) { | |
2205 | mlog_errno(ret); | |
2206 | goto out; | |
2207 | } | |
2208 | ||
2209 | out: | |
2210 | if (ret == 0) { | |
2211 | *ret_orphan_dir = orphan_dir; | |
2212 | *ret_di_blkno = di_blkno; | |
2213 | *ret_inode_ac = inode_ac; | |
2214 | /* | |
2215 | * orphan_name and orphan_insert are already up to | |
2216 | * date via prepare_orphan_dir | |
2217 | */ | |
2218 | } else { | |
2219 | /* Unroll reserve_new_inode* */ | |
2220 | if (inode_ac) | |
2221 | ocfs2_free_alloc_context(inode_ac); | |
2222 | ||
2223 | /* Unroll orphan dir locking */ | |
2224 | mutex_unlock(&orphan_dir->i_mutex); | |
2225 | ocfs2_inode_unlock(orphan_dir, 1); | |
2226 | iput(orphan_dir); | |
2227 | } | |
2228 | ||
2229 | brelse(orphan_dir_bh); | |
2230 | ||
2231 | return 0; | |
2232 | } | |
2233 | ||
bc13d347 TM |
2234 | int ocfs2_create_inode_in_orphan(struct inode *dir, |
2235 | int mode, | |
2236 | struct inode **new_inode) | |
2237 | { | |
2238 | int status, did_quota_inode = 0; | |
2239 | struct inode *inode = NULL; | |
2240 | struct inode *orphan_dir = NULL; | |
2241 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); | |
2242 | struct ocfs2_dinode *di = NULL; | |
2243 | handle_t *handle = NULL; | |
2244 | char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; | |
2245 | struct buffer_head *parent_di_bh = NULL; | |
2246 | struct buffer_head *new_di_bh = NULL; | |
2247 | struct ocfs2_alloc_context *inode_ac = NULL; | |
2248 | struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; | |
97b8f4a9 MF |
2249 | u64 uninitialized_var(di_blkno), suballoc_loc; |
2250 | u16 suballoc_bit; | |
bc13d347 TM |
2251 | |
2252 | status = ocfs2_inode_lock(dir, &parent_di_bh, 1); | |
2253 | if (status < 0) { | |
2254 | if (status != -ENOENT) | |
2255 | mlog_errno(status); | |
2256 | return status; | |
2257 | } | |
2258 | ||
97b8f4a9 MF |
2259 | status = ocfs2_prep_new_orphaned_file(dir, parent_di_bh, |
2260 | orphan_name, &orphan_dir, | |
2261 | &di_blkno, &orphan_insert, &inode_ac); | |
bc13d347 TM |
2262 | if (status < 0) { |
2263 | if (status != -ENOSPC) | |
2264 | mlog_errno(status); | |
2265 | goto leave; | |
2266 | } | |
2267 | ||
2268 | inode = ocfs2_get_init_inode(dir, mode); | |
2269 | if (!inode) { | |
2270 | status = -ENOMEM; | |
2271 | mlog_errno(status); | |
2272 | goto leave; | |
2273 | } | |
2274 | ||
2275 | handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, 0, 0)); | |
2276 | if (IS_ERR(handle)) { | |
2277 | status = PTR_ERR(handle); | |
2278 | handle = NULL; | |
2279 | mlog_errno(status); | |
2280 | goto leave; | |
2281 | } | |
2282 | ||
63936dda CH |
2283 | status = dquot_alloc_inode(inode); |
2284 | if (status) | |
bc13d347 | 2285 | goto leave; |
bc13d347 TM |
2286 | did_quota_inode = 1; |
2287 | ||
97b8f4a9 MF |
2288 | status = ocfs2_claim_new_inode_at_loc(handle, dir, inode_ac, |
2289 | &suballoc_loc, | |
2290 | &suballoc_bit, di_blkno); | |
bc13d347 TM |
2291 | if (status < 0) { |
2292 | mlog_errno(status); | |
2293 | goto leave; | |
2294 | } | |
2295 | ||
97b8f4a9 MF |
2296 | inode->i_nlink = 0; |
2297 | /* do the real work now. */ | |
2298 | status = __ocfs2_mknod_locked(dir, inode, | |
2299 | 0, &new_di_bh, parent_di_bh, handle, | |
2300 | inode_ac, di_blkno, suballoc_loc, | |
2301 | suballoc_bit); | |
bc13d347 TM |
2302 | if (status < 0) { |
2303 | mlog_errno(status); | |
2304 | goto leave; | |
2305 | } | |
2306 | ||
2307 | di = (struct ocfs2_dinode *)new_di_bh->b_data; | |
3939fda4 | 2308 | status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name, |
bc13d347 TM |
2309 | &orphan_insert, orphan_dir); |
2310 | if (status < 0) { | |
2311 | mlog_errno(status); | |
2312 | goto leave; | |
2313 | } | |
2314 | ||
2315 | /* get open lock so that only nodes can't remove it from orphan dir. */ | |
2316 | status = ocfs2_open_lock(inode); | |
2317 | if (status < 0) | |
2318 | mlog_errno(status); | |
2319 | ||
c7d260af | 2320 | insert_inode_hash(inode); |
bc13d347 TM |
2321 | leave: |
2322 | if (status < 0 && did_quota_inode) | |
63936dda | 2323 | dquot_free_inode(inode); |
bc13d347 TM |
2324 | if (handle) |
2325 | ocfs2_commit_trans(osb, handle); | |
2326 | ||
2327 | if (orphan_dir) { | |
2328 | /* This was locked for us in ocfs2_prepare_orphan_dir() */ | |
2329 | ocfs2_inode_unlock(orphan_dir, 1); | |
2330 | mutex_unlock(&orphan_dir->i_mutex); | |
2331 | iput(orphan_dir); | |
2332 | } | |
2333 | ||
2334 | if (status == -ENOSPC) | |
2335 | mlog(0, "Disk is full\n"); | |
2336 | ||
2337 | if ((status < 0) && inode) { | |
2338 | clear_nlink(inode); | |
2339 | iput(inode); | |
2340 | } | |
2341 | ||
2342 | if (inode_ac) | |
2343 | ocfs2_free_alloc_context(inode_ac); | |
2344 | ||
2345 | brelse(new_di_bh); | |
2346 | ||
2347 | if (!status) | |
2348 | *new_inode = inode; | |
2349 | ||
2350 | ocfs2_free_dir_lookup_result(&orphan_insert); | |
2351 | ||
2352 | ocfs2_inode_unlock(dir, 1); | |
2353 | brelse(parent_di_bh); | |
2354 | return status; | |
2355 | } | |
2356 | ||
2357 | int ocfs2_mv_orphaned_inode_to_new(struct inode *dir, | |
2358 | struct inode *inode, | |
2359 | struct dentry *dentry) | |
2360 | { | |
2361 | int status = 0; | |
2362 | struct buffer_head *parent_di_bh = NULL; | |
2363 | handle_t *handle = NULL; | |
2364 | struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); | |
2365 | struct ocfs2_dinode *dir_di, *di; | |
2366 | struct inode *orphan_dir_inode = NULL; | |
2367 | struct buffer_head *orphan_dir_bh = NULL; | |
2368 | struct buffer_head *di_bh = NULL; | |
2369 | struct ocfs2_dir_lookup_result lookup = { NULL, }; | |
2370 | ||
ef6b689b TM |
2371 | mlog(0, "(0x%p, 0x%p, %.*s')\n", dir, dentry, |
2372 | dentry->d_name.len, dentry->d_name.name); | |
bc13d347 TM |
2373 | |
2374 | status = ocfs2_inode_lock(dir, &parent_di_bh, 1); | |
2375 | if (status < 0) { | |
2376 | if (status != -ENOENT) | |
2377 | mlog_errno(status); | |
2378 | return status; | |
2379 | } | |
2380 | ||
2381 | dir_di = (struct ocfs2_dinode *) parent_di_bh->b_data; | |
2382 | if (!dir_di->i_links_count) { | |
2383 | /* can't make a file in a deleted directory. */ | |
2384 | status = -ENOENT; | |
2385 | goto leave; | |
2386 | } | |
2387 | ||
2388 | status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, | |
2389 | dentry->d_name.len); | |
2390 | if (status) | |
2391 | goto leave; | |
2392 | ||
2393 | /* get a spot inside the dir. */ | |
2394 | status = ocfs2_prepare_dir_for_insert(osb, dir, parent_di_bh, | |
2395 | dentry->d_name.name, | |
2396 | dentry->d_name.len, &lookup); | |
2397 | if (status < 0) { | |
2398 | mlog_errno(status); | |
2399 | goto leave; | |
2400 | } | |
2401 | ||
2402 | orphan_dir_inode = ocfs2_get_system_file_inode(osb, | |
2403 | ORPHAN_DIR_SYSTEM_INODE, | |
2404 | osb->slot_num); | |
2405 | if (!orphan_dir_inode) { | |
2406 | status = -EEXIST; | |
2407 | mlog_errno(status); | |
2408 | goto leave; | |
2409 | } | |
2410 | ||
2411 | mutex_lock(&orphan_dir_inode->i_mutex); | |
2412 | ||
2413 | status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); | |
2414 | if (status < 0) { | |
2415 | mlog_errno(status); | |
2416 | mutex_unlock(&orphan_dir_inode->i_mutex); | |
2417 | iput(orphan_dir_inode); | |
2418 | goto leave; | |
2419 | } | |
2420 | ||
2421 | status = ocfs2_read_inode_block(inode, &di_bh); | |
2422 | if (status < 0) { | |
2423 | mlog_errno(status); | |
2424 | goto orphan_unlock; | |
2425 | } | |
2426 | ||
2427 | handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); | |
2428 | if (IS_ERR(handle)) { | |
2429 | status = PTR_ERR(handle); | |
2430 | handle = NULL; | |
2431 | mlog_errno(status); | |
2432 | goto orphan_unlock; | |
2433 | } | |
2434 | ||
2435 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), | |
2436 | di_bh, OCFS2_JOURNAL_ACCESS_WRITE); | |
2437 | if (status < 0) { | |
2438 | mlog_errno(status); | |
2439 | goto out_commit; | |
2440 | } | |
2441 | ||
2442 | status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, | |
2443 | orphan_dir_bh); | |
2444 | if (status < 0) { | |
2445 | mlog_errno(status); | |
2446 | goto out_commit; | |
2447 | } | |
2448 | ||
2449 | di = (struct ocfs2_dinode *)di_bh->b_data; | |
2450 | le32_add_cpu(&di->i_flags, -OCFS2_ORPHANED_FL); | |
2451 | di->i_orphaned_slot = 0; | |
10cf1a02 TM |
2452 | inode->i_nlink = 1; |
2453 | ocfs2_set_links_count(di, inode->i_nlink); | |
bc13d347 TM |
2454 | ocfs2_journal_dirty(handle, di_bh); |
2455 | ||
2456 | status = ocfs2_add_entry(handle, dentry, inode, | |
2457 | OCFS2_I(inode)->ip_blkno, parent_di_bh, | |
2458 | &lookup); | |
2459 | if (status < 0) { | |
2460 | mlog_errno(status); | |
2461 | goto out_commit; | |
2462 | } | |
2463 | ||
2464 | status = ocfs2_dentry_attach_lock(dentry, inode, | |
2465 | OCFS2_I(dir)->ip_blkno); | |
2466 | if (status) { | |
2467 | mlog_errno(status); | |
2468 | goto out_commit; | |
2469 | } | |
2470 | ||
bc13d347 TM |
2471 | d_instantiate(dentry, inode); |
2472 | status = 0; | |
2473 | out_commit: | |
2474 | ocfs2_commit_trans(osb, handle); | |
2475 | orphan_unlock: | |
2476 | ocfs2_inode_unlock(orphan_dir_inode, 1); | |
2477 | mutex_unlock(&orphan_dir_inode->i_mutex); | |
2478 | iput(orphan_dir_inode); | |
2479 | leave: | |
2480 | ||
2481 | ocfs2_inode_unlock(dir, 1); | |
2482 | ||
2483 | brelse(di_bh); | |
2484 | brelse(parent_di_bh); | |
2485 | brelse(orphan_dir_bh); | |
2486 | ||
2487 | ocfs2_free_dir_lookup_result(&lookup); | |
2488 | ||
c1e8d35e TM |
2489 | if (status) |
2490 | mlog_errno(status); | |
bc13d347 TM |
2491 | |
2492 | return status; | |
2493 | } | |
2494 | ||
92e1d5be | 2495 | const struct inode_operations ocfs2_dir_iops = { |
ccd979bd MF |
2496 | .create = ocfs2_create, |
2497 | .lookup = ocfs2_lookup, | |
2498 | .link = ocfs2_link, | |
2499 | .unlink = ocfs2_unlink, | |
2500 | .rmdir = ocfs2_unlink, | |
2501 | .symlink = ocfs2_symlink, | |
2502 | .mkdir = ocfs2_mkdir, | |
2503 | .mknod = ocfs2_mknod, | |
2504 | .rename = ocfs2_rename, | |
2505 | .setattr = ocfs2_setattr, | |
2506 | .getattr = ocfs2_getattr, | |
d38eb8db | 2507 | .permission = ocfs2_permission, |
cf1d6c76 TY |
2508 | .setxattr = generic_setxattr, |
2509 | .getxattr = generic_getxattr, | |
2510 | .listxattr = ocfs2_listxattr, | |
2511 | .removexattr = generic_removexattr, | |
55f4946e | 2512 | .fiemap = ocfs2_fiemap, |
ccd979bd | 2513 | }; |