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Commit | Line | Data |
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2bd0ea18 | 1 | /* |
da23017d NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
dfc130f3 | 4 | * |
da23017d NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
2bd0ea18 | 7 | * published by the Free Software Foundation. |
dfc130f3 | 8 | * |
da23017d NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
dfc130f3 | 13 | * |
da23017d NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
2bd0ea18 NS |
17 | */ |
18 | ||
2bd0ea18 NS |
19 | #include <libxfs.h> |
20 | #include "avl.h" | |
21 | #include "globals.h" | |
22 | #include "agheader.h" | |
23 | #include "incore.h" | |
24 | #include "dir.h" | |
25 | #include "dir2.h" | |
26 | #include "dir_stack.h" | |
27 | #include "protos.h" | |
28 | #include "err_protos.h" | |
29 | #include "dinode.h" | |
cb5b3ef4 | 30 | #include "prefetch.h" |
06fbdda9 | 31 | #include "progress.h" |
2bd0ea18 NS |
32 | #include "versions.h" |
33 | ||
9f064b7e NS |
34 | static struct cred zerocr; |
35 | static struct fsxattr zerofsx; | |
2bd0ea18 NS |
36 | static int orphanage_entered; |
37 | ||
38 | /* | |
39 | * Data structures and routines to keep track of directory entries | |
33165ec3 BN |
40 | * and whether their leaf entry has been seen. Also used for name |
41 | * duplicate checking and rebuilding step if required. | |
2bd0ea18 NS |
42 | */ |
43 | typedef struct dir_hash_ent { | |
33165ec3 BN |
44 | struct dir_hash_ent *nextbyaddr; /* next in addr bucket */ |
45 | struct dir_hash_ent *nextbyhash; /* next in name bucket */ | |
46 | struct dir_hash_ent *nextbyorder; /* next in order added */ | |
47 | xfs_dahash_t hashval; /* hash value of name */ | |
48 | __uint32_t address; /* offset of data entry */ | |
49 | xfs_ino_t inum; /* inode num of entry */ | |
50 | short junkit; /* name starts with / */ | |
51 | short seen; /* have seen leaf entry */ | |
52 | int namelen; /* length of name */ | |
53 | uchar_t *name; /* pointer to name (no NULL) */ | |
2bd0ea18 NS |
54 | } dir_hash_ent_t; |
55 | ||
56 | typedef struct dir_hash_tab { | |
33165ec3 BN |
57 | int size; /* size of hash tables */ |
58 | int names_duped; /* 1 = ent names malloced */ | |
59 | dir_hash_ent_t *first; /* ptr to first added entry */ | |
60 | dir_hash_ent_t *last; /* ptr to last added entry */ | |
61 | dir_hash_ent_t **byhash; /* ptr to name hash buckets */ | |
62 | dir_hash_ent_t **byaddr; /* ptr to addr hash buckets */ | |
2bd0ea18 | 63 | } dir_hash_tab_t; |
33165ec3 | 64 | |
2bd0ea18 | 65 | #define DIR_HASH_TAB_SIZE(n) \ |
33165ec3 | 66 | (sizeof(dir_hash_tab_t) + (sizeof(dir_hash_ent_t *) * (n) * 2)) |
2bd0ea18 NS |
67 | #define DIR_HASH_FUNC(t,a) ((a) % (t)->size) |
68 | ||
69 | /* | |
70 | * Track the contents of the freespace table in a directory. | |
71 | */ | |
72 | typedef struct freetab { | |
9d7d6241 NS |
73 | int naents; /* expected number of data blocks */ |
74 | int nents; /* number of data blocks processed */ | |
2bd0ea18 NS |
75 | struct freetab_ent { |
76 | xfs_dir2_data_off_t v; | |
77 | short s; | |
78 | } ents[1]; | |
79 | } freetab_t; | |
80 | #define FREETAB_SIZE(n) \ | |
81 | (offsetof(freetab_t, ents) + (sizeof(struct freetab_ent) * (n))) | |
82 | ||
83 | #define DIR_HASH_CK_OK 0 | |
84 | #define DIR_HASH_CK_DUPLEAF 1 | |
85 | #define DIR_HASH_CK_BADHASH 2 | |
86 | #define DIR_HASH_CK_NODATA 3 | |
87 | #define DIR_HASH_CK_NOLEAF 4 | |
88 | #define DIR_HASH_CK_BADSTALE 5 | |
507f4e33 | 89 | #define DIR_HASH_CK_TOTAL 6 |
2bd0ea18 | 90 | |
33165ec3 BN |
91 | /* |
92 | * Returns 0 if the name already exists (ie. a duplicate) | |
93 | */ | |
94 | static int | |
2bd0ea18 NS |
95 | dir_hash_add( |
96 | dir_hash_tab_t *hashtab, | |
33165ec3 BN |
97 | __uint32_t addr, |
98 | xfs_ino_t inum, | |
99 | int namelen, | |
100 | uchar_t *name) | |
2bd0ea18 | 101 | { |
33165ec3 BN |
102 | xfs_dahash_t hash = 0; |
103 | int byaddr; | |
104 | int byhash = 0; | |
2bd0ea18 | 105 | dir_hash_ent_t *p; |
33165ec3 BN |
106 | int dup; |
107 | short junk; | |
108 | ||
109 | ASSERT(!hashtab->names_duped); | |
110 | ||
111 | junk = name[0] == '/'; | |
112 | byaddr = DIR_HASH_FUNC(hashtab, addr); | |
113 | dup = 0; | |
2bd0ea18 | 114 | |
33165ec3 BN |
115 | if (!junk) { |
116 | hash = libxfs_da_hashname(name, namelen); | |
117 | byhash = DIR_HASH_FUNC(hashtab, hash); | |
118 | ||
119 | /* | |
120 | * search hash bucket for existing name. | |
121 | */ | |
122 | for (p = hashtab->byhash[byhash]; p; p = p->nextbyhash) { | |
123 | if (p->hashval == hash && p->namelen == namelen) { | |
124 | if (memcmp(p->name, name, namelen) == 0) { | |
125 | dup = 1; | |
126 | junk = 1; | |
127 | break; | |
128 | } | |
129 | } | |
130 | } | |
131 | } | |
132 | ||
507f4e33 NS |
133 | if ((p = malloc(sizeof(*p))) == NULL) |
134 | do_error(_("malloc failed in dir_hash_add (%u bytes)\n"), | |
2bd0ea18 | 135 | sizeof(*p)); |
33165ec3 BN |
136 | |
137 | p->nextbyaddr = hashtab->byaddr[byaddr]; | |
138 | hashtab->byaddr[byaddr] = p; | |
139 | if (hashtab->last) | |
140 | hashtab->last->nextbyorder = p; | |
141 | else | |
142 | hashtab->first = p; | |
143 | p->nextbyorder = NULL; | |
144 | hashtab->last = p; | |
145 | ||
146 | if (!(p->junkit = junk)) { | |
147 | p->hashval = hash; | |
148 | p->nextbyhash = hashtab->byhash[byhash]; | |
149 | hashtab->byhash[byhash] = p; | |
150 | } | |
151 | p->address = addr; | |
152 | p->inum = inum; | |
2bd0ea18 | 153 | p->seen = 0; |
33165ec3 BN |
154 | p->namelen = namelen; |
155 | p->name = name; | |
156 | ||
157 | return !dup; | |
2bd0ea18 NS |
158 | } |
159 | ||
33165ec3 BN |
160 | /* |
161 | * checks to see if any data entries are not in the leaf blocks | |
162 | */ | |
2bd0ea18 NS |
163 | static int |
164 | dir_hash_unseen( | |
165 | dir_hash_tab_t *hashtab) | |
166 | { | |
167 | int i; | |
168 | dir_hash_ent_t *p; | |
169 | ||
170 | for (i = 0; i < hashtab->size; i++) { | |
33165ec3 | 171 | for (p = hashtab->byaddr[i]; p; p = p->nextbyaddr) { |
2bd0ea18 NS |
172 | if (p->seen == 0) |
173 | return 1; | |
174 | } | |
175 | } | |
176 | return 0; | |
177 | } | |
178 | ||
179 | static int | |
180 | dir_hash_check( | |
181 | dir_hash_tab_t *hashtab, | |
182 | xfs_inode_t *ip, | |
183 | int seeval) | |
184 | { | |
507f4e33 NS |
185 | static char *seevalstr[DIR_HASH_CK_TOTAL]; |
186 | static int done; | |
187 | ||
188 | if (!done) { | |
189 | seevalstr[DIR_HASH_CK_OK] = _("ok"); | |
190 | seevalstr[DIR_HASH_CK_DUPLEAF] = _("duplicate leaf"); | |
191 | seevalstr[DIR_HASH_CK_BADHASH] = _("hash value mismatch"); | |
192 | seevalstr[DIR_HASH_CK_NODATA] = _("no data entry"); | |
193 | seevalstr[DIR_HASH_CK_NOLEAF] = _("no leaf entry"); | |
194 | seevalstr[DIR_HASH_CK_BADSTALE] = _("bad stale count"); | |
195 | done = 1; | |
196 | } | |
2bd0ea18 NS |
197 | |
198 | if (seeval == DIR_HASH_CK_OK && dir_hash_unseen(hashtab)) | |
199 | seeval = DIR_HASH_CK_NOLEAF; | |
200 | if (seeval == DIR_HASH_CK_OK) | |
201 | return 0; | |
507f4e33 NS |
202 | do_warn(_("bad hash table for directory inode %llu (%s): "), |
203 | ip->i_ino, seevalstr[seeval]); | |
2bd0ea18 | 204 | if (!no_modify) |
507f4e33 | 205 | do_warn(_("rebuilding\n")); |
2bd0ea18 | 206 | else |
507f4e33 | 207 | do_warn(_("would rebuild\n")); |
2bd0ea18 NS |
208 | return 1; |
209 | } | |
210 | ||
211 | static void | |
212 | dir_hash_done( | |
213 | dir_hash_tab_t *hashtab) | |
214 | { | |
215 | int i; | |
216 | dir_hash_ent_t *n; | |
217 | dir_hash_ent_t *p; | |
218 | ||
219 | for (i = 0; i < hashtab->size; i++) { | |
33165ec3 BN |
220 | for (p = hashtab->byaddr[i]; p; p = n) { |
221 | n = p->nextbyaddr; | |
222 | if (hashtab->names_duped) | |
223 | free(p->name); | |
2bd0ea18 NS |
224 | free(p); |
225 | } | |
226 | } | |
227 | free(hashtab); | |
228 | } | |
229 | ||
230 | static dir_hash_tab_t * | |
231 | dir_hash_init( | |
232 | xfs_fsize_t size) | |
233 | { | |
234 | dir_hash_tab_t *hashtab; | |
235 | int hsize; | |
236 | ||
237 | hsize = size / (16 * 4); | |
238 | if (hsize > 1024) | |
239 | hsize = 1024; | |
240 | else if (hsize < 16) | |
241 | hsize = 16; | |
507f4e33 NS |
242 | if ((hashtab = calloc(DIR_HASH_TAB_SIZE(hsize), 1)) == NULL) |
243 | do_error(_("calloc failed in dir_hash_init\n")); | |
2bd0ea18 | 244 | hashtab->size = hsize; |
33165ec3 BN |
245 | hashtab->byhash = (dir_hash_ent_t**)((char *)hashtab + |
246 | sizeof(dir_hash_tab_t)); | |
247 | hashtab->byaddr = (dir_hash_ent_t**)((char *)hashtab + | |
248 | sizeof(dir_hash_tab_t) + sizeof(dir_hash_ent_t*) * hsize); | |
2bd0ea18 NS |
249 | return hashtab; |
250 | } | |
251 | ||
252 | static int | |
253 | dir_hash_see( | |
254 | dir_hash_tab_t *hashtab, | |
255 | xfs_dahash_t hash, | |
256 | xfs_dir2_dataptr_t addr) | |
257 | { | |
258 | int i; | |
259 | dir_hash_ent_t *p; | |
260 | ||
261 | i = DIR_HASH_FUNC(hashtab, addr); | |
33165ec3 BN |
262 | for (p = hashtab->byaddr[i]; p; p = p->nextbyaddr) { |
263 | if (p->address != addr) | |
2bd0ea18 NS |
264 | continue; |
265 | if (p->seen) | |
266 | return DIR_HASH_CK_DUPLEAF; | |
33165ec3 | 267 | if (p->junkit == 0 && p->hashval != hash) |
2bd0ea18 NS |
268 | return DIR_HASH_CK_BADHASH; |
269 | p->seen = 1; | |
270 | return DIR_HASH_CK_OK; | |
271 | } | |
272 | return DIR_HASH_CK_NODATA; | |
273 | } | |
274 | ||
33165ec3 BN |
275 | /* |
276 | * checks to make sure leafs match a data entry, and that the stale | |
277 | * count is valid. | |
278 | */ | |
2bd0ea18 NS |
279 | static int |
280 | dir_hash_see_all( | |
281 | dir_hash_tab_t *hashtab, | |
282 | xfs_dir2_leaf_entry_t *ents, | |
283 | int count, | |
284 | int stale) | |
285 | { | |
286 | int i; | |
287 | int j; | |
288 | int rval; | |
289 | ||
290 | for (i = j = 0; i < count; i++) { | |
291 | if (INT_GET(ents[i].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR) { | |
292 | j++; | |
293 | continue; | |
294 | } | |
295 | rval = dir_hash_see(hashtab, INT_GET(ents[i].hashval, ARCH_CONVERT), INT_GET(ents[i].address, ARCH_CONVERT)); | |
296 | if (rval != DIR_HASH_CK_OK) | |
297 | return rval; | |
298 | } | |
299 | return j == stale ? DIR_HASH_CK_OK : DIR_HASH_CK_BADSTALE; | |
300 | } | |
301 | ||
64c54486 | 302 | /* |
33165ec3 BN |
303 | * Convert name pointers into locally allocated memory. |
304 | * This must only be done after all the entries have been added. | |
64c54486 | 305 | */ |
33165ec3 BN |
306 | static void |
307 | dir_hash_dup_names(dir_hash_tab_t *hashtab) | |
64c54486 | 308 | { |
33165ec3 BN |
309 | uchar_t *name; |
310 | dir_hash_ent_t *p; | |
64c54486 | 311 | |
33165ec3 BN |
312 | if (hashtab->names_duped) |
313 | return; | |
64c54486 | 314 | |
33165ec3 BN |
315 | for (p = hashtab->first; p; p = p->nextbyorder) { |
316 | name = malloc(p->namelen); | |
317 | memcpy(name, p->name, p->namelen); | |
318 | p->name = name; | |
64c54486 | 319 | } |
33165ec3 | 320 | hashtab->names_duped = 1; |
64c54486 BN |
321 | } |
322 | ||
2bd0ea18 NS |
323 | /* |
324 | * Version 1 or 2 directory routine wrappers | |
325 | */ | |
326 | static void | |
327 | dir_init(xfs_mount_t *mp, xfs_trans_t *tp, xfs_inode_t *dp, xfs_inode_t *pdp) | |
328 | { | |
329 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
330 | libxfs_dir2_init(tp, dp, pdp); | |
331 | else | |
332 | libxfs_dir_init(tp, dp, pdp); | |
333 | } | |
334 | ||
335 | static int | |
336 | dir_createname(xfs_mount_t *mp, xfs_trans_t *tp, xfs_inode_t *pip, | |
337 | char *name, int namelen, xfs_ino_t inum, xfs_fsblock_t *first, | |
338 | xfs_bmap_free_t *flist, xfs_extlen_t total) | |
339 | { | |
340 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
04d3ada9 BN |
341 | return libxfs_dir2_createname(tp, pip, |
342 | (uchar_t *)name, namelen, | |
2bd0ea18 NS |
343 | inum, first, flist, total); |
344 | else | |
04d3ada9 BN |
345 | return libxfs_dir_createname(tp, pip, |
346 | (uchar_t *)name, namelen, | |
2bd0ea18 NS |
347 | inum, first, flist, total); |
348 | } | |
349 | ||
350 | static int | |
351 | dir_lookup(xfs_mount_t *mp, xfs_trans_t *tp, xfs_inode_t *dp, char *name, | |
352 | int namelen, xfs_ino_t *inum) | |
353 | { | |
354 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
04d3ada9 BN |
355 | return libxfs_dir2_lookup(tp, dp, |
356 | (uchar_t *)name, namelen, inum); | |
2bd0ea18 | 357 | else |
04d3ada9 BN |
358 | return libxfs_dir_lookup(tp, dp, |
359 | (uchar_t *)name, namelen, inum); | |
2bd0ea18 NS |
360 | } |
361 | ||
362 | static int | |
363 | dir_replace(xfs_mount_t *mp, xfs_trans_t *tp, xfs_inode_t *dp, char *name, | |
364 | int namelen, xfs_ino_t inum, xfs_fsblock_t *firstblock, | |
365 | xfs_bmap_free_t *flist, xfs_extlen_t total) | |
366 | { | |
367 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
04d3ada9 BN |
368 | return libxfs_dir2_replace(tp, dp, |
369 | (uchar_t *)name, namelen, inum, | |
2bd0ea18 NS |
370 | firstblock, flist, total); |
371 | else | |
04d3ada9 BN |
372 | return libxfs_dir_replace(tp, dp, |
373 | (uchar_t *)name, namelen, inum, | |
2bd0ea18 NS |
374 | firstblock, flist, total); |
375 | } | |
376 | ||
377 | static int | |
378 | dir_bogus_removename(xfs_mount_t *mp, xfs_trans_t *tp, xfs_inode_t *dp, | |
379 | char *name, xfs_fsblock_t *firstblock, xfs_bmap_free_t *flist, | |
380 | xfs_extlen_t total, xfs_dahash_t hashval, int namelen) | |
381 | { | |
382 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
04d3ada9 BN |
383 | return libxfs_dir2_bogus_removename(tp, dp, |
384 | (uchar_t *)name, firstblock, | |
2bd0ea18 NS |
385 | flist, total, hashval, namelen); |
386 | else | |
04d3ada9 BN |
387 | return libxfs_dir_bogus_removename(tp, dp, |
388 | (uchar_t *)name, firstblock, | |
2bd0ea18 NS |
389 | flist, total, hashval, namelen); |
390 | } | |
391 | ||
392 | ||
393 | static void | |
394 | res_failed( | |
395 | int err) | |
396 | { | |
397 | if (err == ENOSPC) { | |
507f4e33 | 398 | do_error(_("ran out of disk space!\n")); |
2bd0ea18 | 399 | } else |
507f4e33 | 400 | do_error(_("xfs_trans_reserve returned %d\n"), err); |
2bd0ea18 NS |
401 | } |
402 | ||
403 | void | |
404 | mk_rbmino(xfs_mount_t *mp) | |
405 | { | |
406 | xfs_trans_t *tp; | |
407 | xfs_inode_t *ip; | |
408 | xfs_bmbt_irec_t *ep; | |
409 | xfs_fsblock_t first; | |
410 | int i; | |
411 | int nmap; | |
412 | int committed; | |
413 | int error; | |
414 | xfs_bmap_free_t flist; | |
415 | xfs_dfiloff_t bno; | |
416 | xfs_bmbt_irec_t map[XFS_BMAP_MAX_NMAP]; | |
417 | ||
418 | /* | |
419 | * first set up inode | |
420 | */ | |
421 | tp = libxfs_trans_alloc(mp, 0); | |
422 | ||
27527004 | 423 | if ((i = libxfs_trans_reserve(tp, 10, 0, 0, 0, 0))) |
2bd0ea18 NS |
424 | res_failed(i); |
425 | ||
46eca962 | 426 | error = libxfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, 0, &ip); |
2bd0ea18 | 427 | if (error) { |
507f4e33 NS |
428 | do_error( |
429 | _("couldn't iget realtime bitmap inode -- error - %d\n"), | |
2bd0ea18 NS |
430 | error); |
431 | } | |
432 | ||
433 | bzero(&ip->i_d, sizeof(xfs_dinode_core_t)); | |
434 | ||
435 | ip->i_d.di_magic = XFS_DINODE_MAGIC; | |
322f2a29 | 436 | ip->i_d.di_mode = S_IFREG; |
2bd0ea18 NS |
437 | ip->i_d.di_version = XFS_DINODE_VERSION_1; |
438 | ip->i_d.di_format = XFS_DINODE_FMT_EXTENTS; | |
439 | ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS; | |
440 | ||
441 | ip->i_d.di_nlink = 1; /* account for sb ptr */ | |
442 | ||
443 | /* | |
444 | * now the ifork | |
445 | */ | |
446 | ip->i_df.if_flags = XFS_IFEXTENTS; | |
447 | ip->i_df.if_bytes = ip->i_df.if_real_bytes = 0; | |
448 | ip->i_df.if_u1.if_extents = NULL; | |
449 | ||
450 | ip->i_d.di_size = mp->m_sb.sb_rbmblocks * mp->m_sb.sb_blocksize; | |
451 | ||
452 | /* | |
453 | * commit changes | |
454 | */ | |
455 | libxfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
456 | libxfs_trans_ihold(tp, ip); | |
457 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, NULL); | |
458 | ||
459 | /* | |
460 | * then allocate blocks for file and fill with zeroes (stolen | |
461 | * from mkfs) | |
462 | */ | |
463 | tp = libxfs_trans_alloc(mp, 0); | |
27527004 NS |
464 | if ((error = libxfs_trans_reserve(tp, mp->m_sb.sb_rbmblocks + |
465 | (XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) - 1), 0, 0, 0, 0))) | |
2bd0ea18 NS |
466 | res_failed(error); |
467 | ||
468 | libxfs_trans_ijoin(tp, ip, 0); | |
469 | bno = 0; | |
470 | XFS_BMAP_INIT(&flist, &first); | |
471 | while (bno < mp->m_sb.sb_rbmblocks) { | |
472 | nmap = XFS_BMAP_MAX_NMAP; | |
473 | error = libxfs_bmapi(tp, ip, bno, | |
474 | (xfs_extlen_t)(mp->m_sb.sb_rbmblocks - bno), | |
475 | XFS_BMAPI_WRITE, &first, mp->m_sb.sb_rbmblocks, | |
476 | map, &nmap, &flist); | |
477 | if (error) { | |
507f4e33 NS |
478 | do_error( |
479 | _("couldn't allocate realtime bitmap, error = %d\n"), | |
2bd0ea18 NS |
480 | error); |
481 | } | |
482 | for (i = 0, ep = map; i < nmap; i++, ep++) { | |
483 | libxfs_device_zero(mp->m_dev, | |
484 | XFS_FSB_TO_DADDR(mp, ep->br_startblock), | |
485 | XFS_FSB_TO_BB(mp, ep->br_blockcount)); | |
486 | bno += ep->br_blockcount; | |
487 | } | |
488 | } | |
489 | error = libxfs_bmap_finish(&tp, &flist, first, &committed); | |
490 | if (error) { | |
491 | do_error( | |
507f4e33 | 492 | _("allocation of the realtime bitmap failed, error = %d\n"), |
2bd0ea18 NS |
493 | error); |
494 | } | |
495 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
496 | } | |
497 | ||
498 | int | |
499 | fill_rbmino(xfs_mount_t *mp) | |
500 | { | |
501 | xfs_buf_t *bp; | |
502 | xfs_trans_t *tp; | |
503 | xfs_inode_t *ip; | |
504 | xfs_rtword_t *bmp; | |
505 | xfs_fsblock_t first; | |
506 | int nmap; | |
507 | int error; | |
508 | xfs_dfiloff_t bno; | |
509 | xfs_bmbt_irec_t map; | |
510 | ||
511 | bmp = btmcompute; | |
512 | bno = 0; | |
513 | ||
514 | tp = libxfs_trans_alloc(mp, 0); | |
515 | ||
27527004 | 516 | if ((error = libxfs_trans_reserve(tp, 10, 0, 0, 0, 0))) |
2bd0ea18 NS |
517 | res_failed(error); |
518 | ||
46eca962 | 519 | error = libxfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, 0, &ip); |
2bd0ea18 | 520 | if (error) { |
507f4e33 NS |
521 | do_error( |
522 | _("couldn't iget realtime bitmap inode -- error - %d\n"), | |
2bd0ea18 NS |
523 | error); |
524 | } | |
525 | ||
526 | while (bno < mp->m_sb.sb_rbmblocks) { | |
527 | /* | |
528 | * fill the file one block at a time | |
529 | */ | |
530 | nmap = 1; | |
531 | error = libxfs_bmapi(tp, ip, bno, 1, XFS_BMAPI_WRITE, | |
532 | &first, 1, &map, &nmap, NULL); | |
533 | if (error || nmap != 1) { | |
534 | do_error( | |
507f4e33 | 535 | _("couldn't map realtime bitmap block %llu, error = %d\n"), |
2bd0ea18 NS |
536 | bno, error); |
537 | } | |
538 | ||
539 | ASSERT(map.br_startblock != HOLESTARTBLOCK); | |
540 | ||
541 | error = libxfs_trans_read_buf( | |
542 | mp, tp, mp->m_dev, | |
dfc130f3 | 543 | XFS_FSB_TO_DADDR(mp, map.br_startblock), |
2bd0ea18 NS |
544 | XFS_FSB_TO_BB(mp, 1), 1, &bp); |
545 | ||
546 | if (error) { | |
547 | do_warn( | |
507f4e33 | 548 | _("can't access block %llu (fsbno %llu) of realtime bitmap inode %llu\n"), |
2bd0ea18 NS |
549 | bno, map.br_startblock, mp->m_sb.sb_rbmino); |
550 | return(1); | |
551 | } | |
552 | ||
553 | bcopy(bmp, XFS_BUF_PTR(bp), mp->m_sb.sb_blocksize); | |
554 | ||
555 | libxfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1); | |
556 | ||
557 | bmp = (xfs_rtword_t *)((__psint_t) bmp + mp->m_sb.sb_blocksize); | |
558 | bno++; | |
559 | } | |
560 | ||
561 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
2bd0ea18 NS |
562 | return(0); |
563 | } | |
564 | ||
565 | int | |
566 | fill_rsumino(xfs_mount_t *mp) | |
567 | { | |
568 | xfs_buf_t *bp; | |
569 | xfs_trans_t *tp; | |
570 | xfs_inode_t *ip; | |
571 | xfs_suminfo_t *smp; | |
572 | xfs_fsblock_t first; | |
573 | int nmap; | |
574 | int error; | |
575 | xfs_dfiloff_t bno; | |
576 | xfs_dfiloff_t end_bno; | |
577 | xfs_bmbt_irec_t map; | |
578 | ||
579 | smp = sumcompute; | |
580 | bno = 0; | |
581 | end_bno = mp->m_rsumsize >> mp->m_sb.sb_blocklog; | |
582 | ||
583 | tp = libxfs_trans_alloc(mp, 0); | |
584 | ||
27527004 | 585 | if ((error = libxfs_trans_reserve(tp, 10, 0, 0, 0, 0))) |
2bd0ea18 NS |
586 | res_failed(error); |
587 | ||
46eca962 | 588 | error = libxfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino, 0, 0, &ip); |
2bd0ea18 | 589 | if (error) { |
507f4e33 NS |
590 | do_error( |
591 | _("couldn't iget realtime summary inode -- error - %d\n"), | |
2bd0ea18 NS |
592 | error); |
593 | } | |
594 | ||
595 | while (bno < end_bno) { | |
596 | /* | |
597 | * fill the file one block at a time | |
598 | */ | |
599 | nmap = 1; | |
600 | error = libxfs_bmapi(tp, ip, bno, 1, XFS_BMAPI_WRITE, | |
601 | &first, 1, &map, &nmap, NULL); | |
602 | if (error || nmap != 1) { | |
603 | do_error( | |
507f4e33 | 604 | _("couldn't map realtime summary inode block %llu, error = %d\n"), |
2bd0ea18 NS |
605 | bno, error); |
606 | } | |
607 | ||
608 | ASSERT(map.br_startblock != HOLESTARTBLOCK); | |
609 | ||
610 | error = libxfs_trans_read_buf( | |
611 | mp, tp, mp->m_dev, | |
dfc130f3 | 612 | XFS_FSB_TO_DADDR(mp, map.br_startblock), |
2bd0ea18 NS |
613 | XFS_FSB_TO_BB(mp, 1), 1, &bp); |
614 | ||
615 | if (error) { | |
616 | do_warn( | |
507f4e33 | 617 | _("can't access block %llu (fsbno %llu) of realtime summary inode %llu\n"), |
2bd0ea18 NS |
618 | bno, map.br_startblock, mp->m_sb.sb_rsumino); |
619 | return(1); | |
620 | } | |
621 | ||
622 | bcopy(smp, XFS_BUF_PTR(bp), mp->m_sb.sb_blocksize); | |
623 | ||
624 | libxfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1); | |
625 | ||
626 | smp = (xfs_suminfo_t *)((__psint_t)smp + mp->m_sb.sb_blocksize); | |
627 | bno++; | |
628 | } | |
629 | ||
630 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
2bd0ea18 NS |
631 | return(0); |
632 | } | |
633 | ||
634 | void | |
635 | mk_rsumino(xfs_mount_t *mp) | |
636 | { | |
637 | xfs_trans_t *tp; | |
638 | xfs_inode_t *ip; | |
639 | xfs_bmbt_irec_t *ep; | |
640 | xfs_fsblock_t first; | |
641 | int i; | |
642 | int nmap; | |
643 | int committed; | |
644 | int error; | |
645 | int nsumblocks; | |
646 | xfs_bmap_free_t flist; | |
647 | xfs_dfiloff_t bno; | |
648 | xfs_bmbt_irec_t map[XFS_BMAP_MAX_NMAP]; | |
649 | ||
650 | /* | |
651 | * first set up inode | |
652 | */ | |
653 | tp = libxfs_trans_alloc(mp, 0); | |
654 | ||
27527004 NS |
655 | if ((i = libxfs_trans_reserve(tp, 10, XFS_ICHANGE_LOG_RES(mp), 0, |
656 | XFS_TRANS_PERM_LOG_RES, XFS_MKDIR_LOG_COUNT))) | |
2bd0ea18 NS |
657 | res_failed(i); |
658 | ||
46eca962 | 659 | error = libxfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino, 0, 0, &ip); |
2bd0ea18 | 660 | if (error) { |
507f4e33 NS |
661 | do_error( |
662 | _("couldn't iget realtime summary inode -- error - %d\n"), | |
2bd0ea18 NS |
663 | error); |
664 | } | |
665 | ||
666 | bzero(&ip->i_d, sizeof(xfs_dinode_core_t)); | |
667 | ||
668 | ip->i_d.di_magic = XFS_DINODE_MAGIC; | |
322f2a29 | 669 | ip->i_d.di_mode = S_IFREG; |
2bd0ea18 NS |
670 | ip->i_d.di_version = XFS_DINODE_VERSION_1; |
671 | ip->i_d.di_format = XFS_DINODE_FMT_EXTENTS; | |
672 | ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS; | |
673 | ||
674 | ip->i_d.di_nlink = 1; /* account for sb ptr */ | |
675 | ||
676 | /* | |
677 | * now the ifork | |
678 | */ | |
679 | ip->i_df.if_flags = XFS_IFEXTENTS; | |
680 | ip->i_df.if_bytes = ip->i_df.if_real_bytes = 0; | |
681 | ip->i_df.if_u1.if_extents = NULL; | |
682 | ||
683 | ip->i_d.di_size = mp->m_rsumsize; | |
684 | ||
685 | /* | |
686 | * commit changes | |
687 | */ | |
688 | libxfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
689 | libxfs_trans_ihold(tp, ip); | |
690 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
691 | ||
692 | /* | |
693 | * then allocate blocks for file and fill with zeroes (stolen | |
694 | * from mkfs) | |
695 | */ | |
696 | tp = libxfs_trans_alloc(mp, 0); | |
697 | XFS_BMAP_INIT(&flist, &first); | |
698 | ||
699 | nsumblocks = mp->m_rsumsize >> mp->m_sb.sb_blocklog; | |
27527004 | 700 | if ((error = libxfs_trans_reserve(tp, |
2bd0ea18 NS |
701 | mp->m_sb.sb_rbmblocks + |
702 | (XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) - 1), | |
703 | BBTOB(128), 0, XFS_TRANS_PERM_LOG_RES, | |
27527004 | 704 | XFS_DEFAULT_PERM_LOG_COUNT))) |
2bd0ea18 NS |
705 | res_failed(error); |
706 | ||
707 | libxfs_trans_ijoin(tp, ip, 0); | |
708 | bno = 0; | |
709 | XFS_BMAP_INIT(&flist, &first); | |
710 | while (bno < nsumblocks) { | |
711 | nmap = XFS_BMAP_MAX_NMAP; | |
712 | error = libxfs_bmapi(tp, ip, bno, | |
713 | (xfs_extlen_t)(nsumblocks - bno), | |
714 | XFS_BMAPI_WRITE, &first, nsumblocks, | |
715 | map, &nmap, &flist); | |
716 | if (error) { | |
717 | do_error( | |
507f4e33 | 718 | _("couldn't allocate realtime summary inode, error = %d\n"), |
2bd0ea18 NS |
719 | error); |
720 | } | |
721 | for (i = 0, ep = map; i < nmap; i++, ep++) { | |
722 | libxfs_device_zero(mp->m_dev, | |
723 | XFS_FSB_TO_DADDR(mp, ep->br_startblock), | |
724 | XFS_FSB_TO_BB(mp, ep->br_blockcount)); | |
2bd0ea18 NS |
725 | bno += ep->br_blockcount; |
726 | } | |
727 | } | |
728 | error = libxfs_bmap_finish(&tp, &flist, first, &committed); | |
729 | if (error) { | |
730 | do_error( | |
507f4e33 | 731 | _("allocation of the realtime summary ino failed, error = %d\n"), |
2bd0ea18 NS |
732 | error); |
733 | } | |
734 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
735 | } | |
736 | ||
737 | /* | |
738 | * makes a new root directory. | |
739 | */ | |
740 | void | |
741 | mk_root_dir(xfs_mount_t *mp) | |
742 | { | |
743 | xfs_trans_t *tp; | |
744 | xfs_inode_t *ip; | |
745 | int i; | |
746 | int error; | |
747 | const mode_t mode = 0755; | |
748 | ||
749 | tp = libxfs_trans_alloc(mp, 0); | |
750 | ip = NULL; | |
751 | ||
27527004 NS |
752 | if ((i = libxfs_trans_reserve(tp, 10, XFS_ICHANGE_LOG_RES(mp), 0, |
753 | XFS_TRANS_PERM_LOG_RES, XFS_MKDIR_LOG_COUNT))) | |
2bd0ea18 NS |
754 | res_failed(i); |
755 | ||
46eca962 | 756 | error = libxfs_trans_iget(mp, tp, mp->m_sb.sb_rootino, 0, 0, &ip); |
2bd0ea18 | 757 | if (error) { |
507f4e33 | 758 | do_error(_("could not iget root inode -- error - %d\n"), error); |
2bd0ea18 NS |
759 | } |
760 | ||
761 | /* | |
762 | * take care of the core -- initialization from xfs_ialloc() | |
763 | */ | |
764 | bzero(&ip->i_d, sizeof(xfs_dinode_core_t)); | |
765 | ||
766 | ip->i_d.di_magic = XFS_DINODE_MAGIC; | |
322f2a29 | 767 | ip->i_d.di_mode = (__uint16_t) mode|S_IFDIR; |
2bd0ea18 NS |
768 | ip->i_d.di_version = XFS_DINODE_VERSION_1; |
769 | ip->i_d.di_format = XFS_DINODE_FMT_EXTENTS; | |
770 | ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS; | |
771 | ||
772 | ip->i_d.di_nlink = 1; /* account for . */ | |
773 | ||
774 | libxfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
775 | ||
776 | /* | |
777 | * now the ifork | |
778 | */ | |
779 | ip->i_df.if_flags = XFS_IFEXTENTS; | |
780 | ip->i_df.if_bytes = ip->i_df.if_real_bytes = 0; | |
781 | ip->i_df.if_u1.if_extents = NULL; | |
782 | ||
783 | mp->m_rootip = ip; | |
784 | ||
785 | /* | |
786 | * initialize the directory | |
787 | */ | |
788 | dir_init(mp, tp, ip, ip); | |
789 | ||
790 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
791 | } | |
792 | ||
793 | /* | |
794 | * orphanage name == lost+found | |
795 | */ | |
796 | xfs_ino_t | |
797 | mk_orphanage(xfs_mount_t *mp) | |
798 | { | |
799 | xfs_ino_t ino; | |
800 | xfs_trans_t *tp; | |
801 | xfs_inode_t *ip; | |
802 | xfs_inode_t *pip; | |
803 | xfs_fsblock_t first; | |
804 | int i; | |
805 | int committed; | |
806 | int error; | |
807 | xfs_bmap_free_t flist; | |
808 | const int mode = 0755; | |
2bd0ea18 NS |
809 | int nres; |
810 | ||
811 | tp = libxfs_trans_alloc(mp, 0); | |
812 | XFS_BMAP_INIT(&flist, &first); | |
813 | ||
814 | nres = XFS_MKDIR_SPACE_RES(mp, strlen(ORPHANAGE)); | |
27527004 NS |
815 | if ((i = libxfs_trans_reserve(tp, nres, XFS_MKDIR_LOG_RES(mp), 0, |
816 | XFS_TRANS_PERM_LOG_RES, XFS_MKDIR_LOG_COUNT))) | |
2bd0ea18 NS |
817 | res_failed(i); |
818 | ||
819 | /* | |
820 | * use iget/ijoin instead of trans_iget because the ialloc | |
821 | * wrapper can commit the transaction and start a new one | |
822 | */ | |
27527004 | 823 | if ((i = libxfs_iget(mp, NULL, mp->m_sb.sb_rootino, 0, &pip, 0))) |
507f4e33 | 824 | do_error(_("%d - couldn't iget root inode to make %s\n"), |
2bd0ea18 NS |
825 | i, ORPHANAGE); |
826 | ||
322f2a29 | 827 | error = libxfs_inode_alloc(&tp, pip, mode|S_IFDIR, |
9f064b7e | 828 | 1, 0, &zerocr, &zerofsx, &ip); |
2bd0ea18 | 829 | if (error) { |
507f4e33 | 830 | do_error(_("%s inode allocation failed %d\n"), |
2bd0ea18 NS |
831 | ORPHANAGE, error); |
832 | } | |
2bd0ea18 NS |
833 | ip->i_d.di_nlink++; /* account for . */ |
834 | ||
835 | /* | |
836 | * now that we know the transaction will stay around, | |
837 | * add the root inode to it | |
838 | */ | |
839 | libxfs_trans_ijoin(tp, pip, 0); | |
840 | ||
841 | /* | |
842 | * create the actual entry | |
843 | */ | |
27527004 NS |
844 | if ((error = dir_createname(mp, tp, pip, ORPHANAGE, |
845 | strlen(ORPHANAGE), ip->i_ino, &first, &flist, nres))) { | |
507f4e33 NS |
846 | do_warn( |
847 | _("can't make %s, createname error %d, will try later\n"), | |
2bd0ea18 NS |
848 | ORPHANAGE, error); |
849 | orphanage_entered = 0; | |
850 | } else | |
851 | orphanage_entered = 1; | |
852 | ||
dfc130f3 | 853 | /* |
2bd0ea18 NS |
854 | * bump up the link count in the root directory to account |
855 | * for .. in the new directory | |
856 | */ | |
857 | pip->i_d.di_nlink++; | |
858 | ||
859 | libxfs_trans_log_inode(tp, pip, XFS_ILOG_CORE); | |
860 | dir_init(mp, tp, ip, pip); | |
861 | libxfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
862 | ||
863 | error = libxfs_bmap_finish(&tp, &flist, first, &committed); | |
864 | if (error) { | |
507f4e33 | 865 | do_error(_("%s directory creation failed -- bmapf error %d\n"), |
2bd0ea18 NS |
866 | ORPHANAGE, error); |
867 | } | |
868 | ||
869 | ino = ip->i_ino; | |
870 | ||
871 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
872 | ||
873 | /* need libxfs_iput here? - nathans TODO - possible memory leak? */ | |
874 | ||
875 | return(ino); | |
876 | } | |
877 | ||
878 | /* | |
879 | * move a file to the orphange. the orphanage is guaranteed | |
880 | * at this point to only have file in it whose name == file inode # | |
881 | */ | |
882 | void | |
883 | mv_orphanage(xfs_mount_t *mp, | |
884 | xfs_ino_t dir_ino, /* orphange inode # */ | |
885 | xfs_ino_t ino, /* inode # to be moved */ | |
886 | int isa_dir) /* 1 if inode is a directory */ | |
887 | { | |
888 | xfs_ino_t entry_ino_num; | |
889 | xfs_inode_t *dir_ino_p; | |
890 | xfs_inode_t *ino_p; | |
891 | xfs_trans_t *tp; | |
892 | xfs_fsblock_t first; | |
893 | xfs_bmap_free_t flist; | |
894 | int err; | |
895 | int committed; | |
896 | char fname[MAXPATHLEN + 1]; | |
897 | int nres; | |
898 | ||
2d9475a4 | 899 | snprintf(fname, sizeof(fname), "%llu", (unsigned long long)ino); |
2bd0ea18 | 900 | |
27527004 | 901 | if ((err = libxfs_iget(mp, NULL, dir_ino, 0, &dir_ino_p, 0))) |
507f4e33 | 902 | do_error(_("%d - couldn't iget orphanage inode\n"), err); |
2bd0ea18 NS |
903 | |
904 | tp = libxfs_trans_alloc(mp, 0); | |
905 | ||
27527004 | 906 | if ((err = libxfs_iget(mp, NULL, ino, 0, &ino_p, 0))) |
507f4e33 | 907 | do_error(_("%d - couldn't iget disconnected inode\n"), err); |
2bd0ea18 NS |
908 | |
909 | if (isa_dir) { | |
910 | nres = XFS_DIRENTER_SPACE_RES(mp, strlen(fname)) + | |
911 | XFS_DIRENTER_SPACE_RES(mp, 2); | |
27527004 NS |
912 | if ((err = dir_lookup(mp, tp, ino_p, "..", 2, |
913 | &entry_ino_num))) { | |
2bd0ea18 NS |
914 | ASSERT(err == ENOENT); |
915 | ||
27527004 | 916 | if ((err = libxfs_trans_reserve(tp, nres, |
2bd0ea18 NS |
917 | XFS_RENAME_LOG_RES(mp), 0, |
918 | XFS_TRANS_PERM_LOG_RES, | |
27527004 | 919 | XFS_RENAME_LOG_COUNT))) |
2bd0ea18 | 920 | do_error( |
507f4e33 | 921 | _("space reservation failed (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
922 | err); |
923 | ||
924 | libxfs_trans_ijoin(tp, dir_ino_p, 0); | |
925 | libxfs_trans_ijoin(tp, ino_p, 0); | |
926 | ||
927 | XFS_BMAP_INIT(&flist, &first); | |
27527004 | 928 | if ((err = dir_createname(mp, tp, dir_ino_p, fname, |
2bd0ea18 | 929 | strlen(fname), ino, &first, |
27527004 | 930 | &flist, nres))) |
2bd0ea18 | 931 | do_error( |
507f4e33 | 932 | _("name create failed in %s (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
933 | ORPHANAGE, err); |
934 | ||
935 | dir_ino_p->i_d.di_nlink++; | |
936 | libxfs_trans_log_inode(tp, dir_ino_p, XFS_ILOG_CORE); | |
937 | ||
27527004 NS |
938 | if ((err = dir_createname(mp, tp, ino_p, "..", 2, |
939 | dir_ino, &first, &flist, nres))) | |
2bd0ea18 | 940 | do_error( |
507f4e33 | 941 | _("creation of .. entry failed (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
942 | err); |
943 | ||
944 | ino_p->i_d.di_nlink++; | |
945 | libxfs_trans_log_inode(tp, ino_p, XFS_ILOG_CORE); | |
946 | ||
27527004 | 947 | if ((err = libxfs_bmap_finish(&tp, &flist, first, &committed))) |
2bd0ea18 | 948 | do_error( |
507f4e33 | 949 | _("bmap finish failed (err - %d), filesystem may be out of space\n"), |
2bd0ea18 NS |
950 | err); |
951 | ||
952 | libxfs_trans_commit(tp, | |
953 | XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
954 | } else { | |
27527004 | 955 | if ((err = libxfs_trans_reserve(tp, nres, |
2bd0ea18 NS |
956 | XFS_RENAME_LOG_RES(mp), 0, |
957 | XFS_TRANS_PERM_LOG_RES, | |
27527004 | 958 | XFS_RENAME_LOG_COUNT))) |
2bd0ea18 | 959 | do_error( |
507f4e33 | 960 | _("space reservation failed (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
961 | err); |
962 | ||
963 | libxfs_trans_ijoin(tp, dir_ino_p, 0); | |
964 | libxfs_trans_ijoin(tp, ino_p, 0); | |
965 | ||
966 | XFS_BMAP_INIT(&flist, &first); | |
967 | ||
27527004 | 968 | if ((err = dir_createname(mp, tp, dir_ino_p, fname, |
2bd0ea18 | 969 | strlen(fname), ino, &first, |
27527004 | 970 | &flist, nres))) |
2bd0ea18 | 971 | do_error( |
507f4e33 | 972 | _("name create failed in %s (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
973 | ORPHANAGE, err); |
974 | ||
975 | dir_ino_p->i_d.di_nlink++; | |
976 | libxfs_trans_log_inode(tp, dir_ino_p, XFS_ILOG_CORE); | |
977 | ||
978 | /* | |
979 | * don't replace .. value if it already points | |
980 | * to us. that'll pop a libxfs/kernel ASSERT. | |
981 | */ | |
982 | if (entry_ino_num != dir_ino) { | |
27527004 | 983 | if ((err = dir_replace(mp, tp, ino_p, "..", |
2bd0ea18 | 984 | 2, dir_ino, &first, |
27527004 | 985 | &flist, nres))) |
2bd0ea18 | 986 | do_error( |
507f4e33 | 987 | _("name replace op failed (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
988 | err); |
989 | } | |
990 | ||
27527004 NS |
991 | if ((err = libxfs_bmap_finish(&tp, &flist, first, |
992 | &committed))) | |
2bd0ea18 | 993 | do_error( |
507f4e33 | 994 | _("bmap finish failed (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
995 | err); |
996 | ||
997 | libxfs_trans_commit(tp, | |
998 | XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
999 | } | |
1000 | } else { | |
1001 | /* | |
1002 | * use the remove log reservation as that's | |
1003 | * more accurate. we're only creating the | |
1004 | * links, we're not doing the inode allocation | |
1005 | * also accounted for in the create | |
1006 | */ | |
1007 | nres = XFS_DIRENTER_SPACE_RES(mp, strlen(fname)); | |
27527004 NS |
1008 | if ((err = libxfs_trans_reserve(tp, nres, XFS_REMOVE_LOG_RES(mp), 0, |
1009 | XFS_TRANS_PERM_LOG_RES, XFS_REMOVE_LOG_COUNT))) | |
2bd0ea18 | 1010 | do_error( |
507f4e33 | 1011 | _("space reservation failed (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
1012 | err); |
1013 | ||
1014 | libxfs_trans_ijoin(tp, dir_ino_p, 0); | |
1015 | libxfs_trans_ijoin(tp, ino_p, 0); | |
1016 | ||
1017 | XFS_BMAP_INIT(&flist, &first); | |
27527004 NS |
1018 | if ((err = dir_createname(mp, tp, dir_ino_p, fname, |
1019 | strlen(fname), ino, &first, &flist, nres))) | |
2bd0ea18 | 1020 | do_error( |
507f4e33 | 1021 | _("name create failed in %s (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
1022 | ORPHANAGE, err); |
1023 | ASSERT(err == 0); | |
1024 | ||
1025 | ino_p->i_d.di_nlink = 1; | |
1026 | libxfs_trans_log_inode(tp, ino_p, XFS_ILOG_CORE); | |
1027 | ||
27527004 | 1028 | if ((err = libxfs_bmap_finish(&tp, &flist, first, &committed))) |
2bd0ea18 | 1029 | do_error( |
507f4e33 | 1030 | _("bmap finish failed (%d), filesystem may be out of space\n"), |
2bd0ea18 NS |
1031 | err); |
1032 | ||
1033 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
1034 | } | |
1035 | } | |
1036 | ||
1037 | /* | |
1038 | * like get_first_dblock_fsbno only it uses the simulation code instead | |
1039 | * of raw I/O. | |
1040 | * | |
1041 | * Returns the fsbno of the first (leftmost) block in the directory leaf. | |
1042 | * sets *bno to the directory block # corresponding to the returned fsbno. | |
1043 | */ | |
1044 | xfs_dfsbno_t | |
1045 | map_first_dblock_fsbno(xfs_mount_t *mp, | |
1046 | xfs_ino_t ino, | |
1047 | xfs_inode_t *ip, | |
1048 | xfs_dablk_t *bno) | |
1049 | { | |
1050 | xfs_fsblock_t fblock; | |
1051 | xfs_da_intnode_t *node; | |
1052 | xfs_buf_t *bp; | |
1053 | xfs_dablk_t da_bno; | |
1054 | xfs_dfsbno_t fsbno; | |
1055 | xfs_bmbt_irec_t map; | |
1056 | int nmap; | |
1057 | int i; | |
1058 | int error; | |
1059 | char *ftype; | |
cb5b3ef4 | 1060 | xfs_fsblock_t fblock2; |
2bd0ea18 NS |
1061 | |
1062 | /* | |
1063 | * traverse down left-side of tree until we hit the | |
1064 | * left-most leaf block setting up the btree cursor along | |
1065 | * the way. | |
1066 | */ | |
1067 | da_bno = 0; | |
1068 | *bno = 0; | |
1069 | i = -1; | |
1070 | node = NULL; | |
1071 | fblock = NULLFSBLOCK; | |
507f4e33 | 1072 | ftype = _("dir"); |
2bd0ea18 NS |
1073 | |
1074 | nmap = 1; | |
1075 | error = libxfs_bmapi(NULL, ip, (xfs_fileoff_t) da_bno, 1, | |
1076 | XFS_BMAPI_METADATA, &fblock, 0, | |
1077 | &map, &nmap, NULL); | |
1078 | if (error || nmap != 1) { | |
1079 | if (!no_modify) | |
1080 | do_error( | |
507f4e33 | 1081 | _("can't map block %d in %s inode %llu, xfs_bmapi returns %d, nmap = %d\n"), |
2bd0ea18 NS |
1082 | da_bno, ftype, ino, error, nmap); |
1083 | else { | |
1084 | do_warn( | |
507f4e33 | 1085 | _("can't map block %d in %s inode %llu, xfs_bmapi returns %d, nmap = %d\n"), |
2bd0ea18 NS |
1086 | da_bno, ftype, ino, error, nmap); |
1087 | return(NULLDFSBNO); | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | if ((fsbno = map.br_startblock) == HOLESTARTBLOCK) { | |
1092 | if (!no_modify) | |
507f4e33 | 1093 | do_error(_("block %d in %s ino %llu doesn't exist\n"), |
2bd0ea18 NS |
1094 | da_bno, ftype, ino); |
1095 | else { | |
507f4e33 | 1096 | do_warn(_("block %d in %s ino %llu doesn't exist\n"), |
2bd0ea18 NS |
1097 | da_bno, ftype, ino); |
1098 | return(NULLDFSBNO); | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | if (ip->i_d.di_size <= XFS_LBSIZE(mp)) | |
1103 | return(fsbno); | |
1104 | ||
1105 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
1106 | return(fsbno); | |
1107 | ||
cb5b3ef4 MV |
1108 | if (do_prefetch) { |
1109 | fblock2 = NULLFSBLOCK; | |
1110 | prefetch_p6_dir1(mp, ino, ip, 0, &fblock2); | |
1111 | } | |
1112 | ||
2bd0ea18 NS |
1113 | do { |
1114 | /* | |
1115 | * walk down left side of btree, release buffers as you | |
1116 | * go. if the root block is a leaf (single-level btree), | |
1117 | * just return it. | |
dfc130f3 | 1118 | * |
2bd0ea18 NS |
1119 | */ |
1120 | ||
1121 | bp = libxfs_readbuf(mp->m_dev, XFS_FSB_TO_DADDR(mp, fsbno), | |
1122 | XFS_FSB_TO_BB(mp, 1), 0); | |
1123 | ||
1124 | if (!bp) { | |
1125 | do_warn( | |
507f4e33 | 1126 | _("can't read block %u (fsbno %llu) for directory inode %llu\n"), |
2bd0ea18 NS |
1127 | da_bno, fsbno, ino); |
1128 | return(NULLDFSBNO); | |
1129 | } | |
1130 | ||
1131 | node = (xfs_da_intnode_t *)XFS_BUF_PTR(bp); | |
1132 | ||
1133 | if (INT_GET(node->hdr.info.magic, ARCH_CONVERT) != XFS_DA_NODE_MAGIC) { | |
1134 | libxfs_putbuf(bp); | |
1135 | do_warn( | |
507f4e33 | 1136 | _("bad dir/attr magic number in inode %llu, file bno = %u, fsbno = %llu\n"), |
2bd0ea18 NS |
1137 | ino, da_bno, fsbno); |
1138 | return(NULLDFSBNO); | |
1139 | } | |
1140 | ||
1141 | if (i == -1) | |
1142 | i = INT_GET(node->hdr.level, ARCH_CONVERT); | |
1143 | ||
1144 | da_bno = INT_GET(node->btree[0].before, ARCH_CONVERT); | |
1145 | ||
1146 | libxfs_putbuf(bp); | |
1147 | bp = NULL; | |
1148 | ||
1149 | nmap = 1; | |
1150 | error = libxfs_bmapi(NULL, ip, (xfs_fileoff_t) da_bno, 1, | |
1151 | XFS_BMAPI_METADATA, &fblock, 0, | |
1152 | &map, &nmap, NULL); | |
1153 | if (error || nmap != 1) { | |
1154 | if (!no_modify) | |
1155 | do_error( | |
507f4e33 | 1156 | _("can't map block %d in %s ino %llu, xfs_bmapi returns %d, nmap = %d\n"), |
2bd0ea18 NS |
1157 | da_bno, ftype, ino, error, nmap); |
1158 | else { | |
1159 | do_warn( | |
507f4e33 | 1160 | _("can't map block %d in %s ino %llu, xfs_bmapi returns %d, nmap = %d\n"), |
2bd0ea18 NS |
1161 | da_bno, ftype, ino, error, nmap); |
1162 | return(NULLDFSBNO); | |
1163 | } | |
1164 | } | |
1165 | if ((fsbno = map.br_startblock) == HOLESTARTBLOCK) { | |
1166 | if (!no_modify) | |
1167 | do_error( | |
507f4e33 | 1168 | _("block %d in %s inode %llu doesn't exist\n"), |
2bd0ea18 NS |
1169 | da_bno, ftype, ino); |
1170 | else { | |
1171 | do_warn( | |
507f4e33 | 1172 | _("block %d in %s inode %llu doesn't exist\n"), |
2bd0ea18 NS |
1173 | da_bno, ftype, ino); |
1174 | return(NULLDFSBNO); | |
1175 | } | |
1176 | } | |
1177 | ||
1178 | i--; | |
1179 | } while(i > 0); | |
1180 | ||
1181 | *bno = da_bno; | |
1182 | return(fsbno); | |
1183 | } | |
1184 | ||
1185 | /* | |
1186 | * scan longform directory and prune first bad entry. returns 1 if | |
1187 | * it had to remove something, 0 if it made it all the way through | |
1188 | * the directory. prune_lf_dir_entry does all the necessary bmap calls. | |
1189 | * | |
1190 | * hashval is an in/out -- starting hashvalue in, hashvalue of the | |
1191 | * deleted entry (if there was one) out | |
1192 | * | |
1193 | * this routine can NOT be called if running in no modify mode | |
1194 | */ | |
1195 | int | |
1196 | prune_lf_dir_entry(xfs_mount_t *mp, xfs_ino_t ino, xfs_inode_t *ip, | |
1197 | xfs_dahash_t *hashval) | |
1198 | { | |
1199 | xfs_dfsbno_t fsbno; | |
1200 | int i; | |
1201 | int index; | |
1202 | int error; | |
1203 | int namelen; | |
1204 | xfs_bmap_free_t free_list; | |
1205 | xfs_fsblock_t first_block; | |
1206 | xfs_buf_t *bp; | |
1207 | xfs_dir_leaf_name_t *namest; | |
1208 | xfs_dir_leafblock_t *leaf; | |
1209 | xfs_dir_leaf_entry_t *entry; | |
1210 | xfs_trans_t *tp; | |
1211 | xfs_dablk_t da_bno; | |
1212 | xfs_fsblock_t fblock; | |
1213 | int committed; | |
1214 | int nmap; | |
1215 | xfs_bmbt_irec_t map; | |
1216 | char fname[MAXNAMELEN + 1]; | |
1217 | char *ftype; | |
1218 | int nres; | |
1219 | ||
1220 | /* | |
1221 | * ok, this is kind of a schizoid routine. we use our | |
1222 | * internal bmapi routines to walk the directory. when | |
1223 | * we find a bogus entry, we release the buffer so | |
1224 | * the simulation code doesn't deadlock and use the | |
1225 | * sim code to remove the entry. That will cause an | |
1226 | * extra bmap traversal to map the block but I think | |
1227 | * that's preferable to hacking the bogus removename | |
1228 | * function to be really different and then trying to | |
1229 | * maintain both versions as time goes on. | |
1230 | * | |
1231 | * first, grab the dinode and find the right leaf block. | |
1232 | */ | |
1233 | ||
507f4e33 | 1234 | ftype = _("dir"); |
2bd0ea18 NS |
1235 | da_bno = 0; |
1236 | bp = NULL; | |
1237 | namest = NULL; | |
1238 | fblock = NULLFSBLOCK; | |
1239 | ||
1240 | fsbno = map_first_dblock_fsbno(mp, ino, ip, &da_bno); | |
1241 | ||
1242 | /* | |
1243 | * now go foward along the leaves of the btree looking | |
1244 | * for an entry beginning with '/' | |
1245 | */ | |
1246 | do { | |
1247 | bp = libxfs_readbuf(mp->m_dev, XFS_FSB_TO_DADDR(mp, fsbno), | |
1248 | XFS_FSB_TO_BB(mp, 1), 0); | |
1249 | ||
1250 | if (!bp) { | |
1251 | do_error( | |
507f4e33 | 1252 | _("can't read directory inode %llu (leaf) block %u (fsbno %llu)\n"), |
2bd0ea18 NS |
1253 | ino, da_bno, fsbno); |
1254 | /* NOTREACHED */ | |
1255 | } | |
1256 | ||
1257 | leaf = (xfs_dir_leafblock_t *)XFS_BUF_PTR(bp); | |
1258 | ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC); | |
1259 | entry = &leaf->entries[0]; | |
1260 | ||
1261 | for (index = -1, i = 0; | |
1262 | i < INT_GET(leaf->hdr.count, ARCH_CONVERT) && index == -1; | |
1263 | i++) { | |
1264 | namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT)); | |
1265 | if (namest->name[0] != '/') | |
1266 | entry++; | |
1267 | else | |
1268 | index = i; | |
1269 | } | |
1270 | ||
1271 | /* | |
1272 | * if we got a bogus entry, exit loop with a pointer to | |
1273 | * the leaf block buffer. otherwise, keep trying blocks | |
1274 | */ | |
1275 | da_bno = INT_GET(leaf->hdr.info.forw, ARCH_CONVERT); | |
1276 | ||
1277 | if (index == -1) { | |
1278 | if (bp != NULL) { | |
1279 | libxfs_putbuf(bp); | |
1280 | bp = NULL; | |
1281 | } | |
1282 | ||
1283 | /* | |
1284 | * map next leaf block unless we've run out | |
1285 | */ | |
1286 | if (da_bno != 0) { | |
1287 | nmap = 1; | |
1288 | error = libxfs_bmapi(NULL, ip, | |
1289 | (xfs_fileoff_t) da_bno, 1, | |
1290 | XFS_BMAPI_METADATA, &fblock, 0, | |
1291 | &map, &nmap, NULL); | |
1292 | if (error || nmap != 1) | |
1293 | do_error( | |
507f4e33 | 1294 | _("can't map block %d in directory %llu, xfs_bmapi returns %d, nmap = %d\n"), |
2bd0ea18 NS |
1295 | da_bno, ino, error, nmap); |
1296 | if ((fsbno = map.br_startblock) | |
1297 | == HOLESTARTBLOCK) { | |
1298 | do_error( | |
507f4e33 | 1299 | _("%s ino %llu block %d doesn't exist\n"), |
2bd0ea18 NS |
1300 | ftype, ino, da_bno); |
1301 | } | |
1302 | } | |
1303 | } | |
1304 | } while (da_bno != 0 && index == -1); | |
1305 | ||
1306 | /* | |
1307 | * if we hit the edge of the tree with no bad entries, we're done | |
1308 | * and the buffer was released. | |
1309 | */ | |
1310 | if (da_bno == 0 && index == -1) | |
1311 | return(0); | |
1312 | ||
1313 | ASSERT(index >= 0); | |
1314 | ASSERT(entry == &leaf->entries[index]); | |
507f4e33 NS |
1315 | ASSERT(namest == XFS_DIR_LEAF_NAMESTRUCT(leaf, |
1316 | INT_GET(entry->nameidx, ARCH_CONVERT))); | |
2bd0ea18 NS |
1317 | |
1318 | /* | |
1319 | * snag the info we need out of the directory then release all buffers | |
1320 | */ | |
1321 | bcopy(namest->name, fname, entry->namelen); | |
1322 | fname[entry->namelen] = '\0'; | |
1323 | *hashval = INT_GET(entry->hashval, ARCH_CONVERT); | |
1324 | namelen = entry->namelen; | |
1325 | ||
1326 | libxfs_putbuf(bp); | |
1327 | ||
1328 | /* | |
1329 | * ok, now the hard part, blow away the index'th entry in this block | |
1330 | * | |
1331 | * allocate a remove transaction for it. that's not quite true since | |
1332 | * we're only messing with one inode, not two but... | |
1333 | */ | |
1334 | ||
1335 | tp = libxfs_trans_alloc(mp, XFS_TRANS_REMOVE); | |
1336 | ||
1337 | nres = XFS_REMOVE_SPACE_RES(mp); | |
1338 | error = libxfs_trans_reserve(tp, nres, XFS_REMOVE_LOG_RES(mp), | |
1339 | 0, XFS_TRANS_PERM_LOG_RES, | |
1340 | XFS_REMOVE_LOG_COUNT); | |
1341 | if (error) | |
1342 | res_failed(error); | |
1343 | ||
1344 | libxfs_trans_ijoin(tp, ip, 0); | |
1345 | libxfs_trans_ihold(tp, ip); | |
1346 | ||
1347 | XFS_BMAP_INIT(&free_list, &first_block); | |
1348 | ||
1349 | error = dir_bogus_removename(mp, tp, ip, fname, | |
1350 | &first_block, &free_list, nres, *hashval, namelen); | |
1351 | ||
1352 | if (error) { | |
1353 | do_error( | |
507f4e33 | 1354 | _("couldn't remove bogus entry \"%s\" in\n\tdirectory inode %llu, errno = %d\n"), |
2bd0ea18 NS |
1355 | fname, ino, error); |
1356 | /* NOTREACHED */ | |
1357 | } | |
1358 | ||
1359 | error = libxfs_bmap_finish(&tp, &free_list, first_block, &committed); | |
1360 | ||
1361 | ASSERT(error == 0); | |
1362 | ||
1363 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
1364 | ||
1365 | return(1); | |
1366 | } | |
1367 | ||
1368 | /* | |
1369 | * process a leaf block, also checks for .. entry | |
1370 | * and corrects it to match what we think .. should be | |
1371 | */ | |
1372 | void | |
1373 | lf_block_dir_entry_check(xfs_mount_t *mp, | |
1374 | xfs_ino_t ino, | |
1375 | xfs_dir_leafblock_t *leaf, | |
1376 | int *dirty, | |
1377 | int *num_illegal, | |
1378 | int *need_dot, | |
1379 | dir_stack_t *stack, | |
1380 | ino_tree_node_t *current_irec, | |
64c54486 | 1381 | int current_ino_offset, |
33165ec3 BN |
1382 | dir_hash_tab_t *hashtab, |
1383 | xfs_dablk_t da_bno) | |
2bd0ea18 NS |
1384 | { |
1385 | xfs_dir_leaf_entry_t *entry; | |
1386 | ino_tree_node_t *irec; | |
1387 | xfs_ino_t lino; | |
1388 | xfs_ino_t parent; | |
1389 | xfs_dir_leaf_name_t *namest; | |
1390 | int i; | |
1391 | int junkit; | |
1392 | int ino_offset; | |
1393 | int nbad; | |
1394 | char fname[MAXNAMELEN + 1]; | |
1395 | ||
1396 | entry = &leaf->entries[0]; | |
1397 | *dirty = 0; | |
1398 | nbad = 0; | |
1399 | ||
1400 | /* | |
1401 | * look at each entry. reference inode pointed to by each | |
1402 | * entry in the incore inode tree. | |
1403 | * if not a directory, set reached flag, increment link count | |
1404 | * if a directory and reached, mark entry as to be deleted. | |
1405 | * if a directory, check to see if recorded parent | |
1406 | * matches current inode #, | |
1407 | * if so, then set reached flag, increment link count | |
1408 | * of current and child dir inodes, push the child | |
1409 | * directory inode onto the directory stack. | |
1410 | * if current inode != parent, then mark entry to be deleted. | |
1411 | * | |
1412 | * return | |
1413 | */ | |
1414 | for (i = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT); entry++, i++) { | |
1415 | /* | |
1416 | * snag inode #, update link counts, and make sure | |
1417 | * this isn't a loop if the child is a directory | |
1418 | */ | |
1419 | namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT)); | |
1420 | ||
1421 | /* | |
1422 | * skip bogus entries (leading '/'). they'll be deleted | |
1423 | * later | |
1424 | */ | |
1425 | if (namest->name[0] == '/') { | |
1426 | nbad++; | |
1427 | continue; | |
1428 | } | |
1429 | ||
1430 | junkit = 0; | |
1431 | ||
46eca962 | 1432 | XFS_DIR_SF_GET_DIRINO(&namest->inumber, &lino); |
2bd0ea18 NS |
1433 | bcopy(namest->name, fname, entry->namelen); |
1434 | fname[entry->namelen] = '\0'; | |
1435 | ||
1436 | ASSERT(lino != NULLFSINO); | |
1437 | ||
1438 | /* | |
1439 | * skip the '..' entry since it's checked when the | |
1440 | * directory is reached by something else. if it never | |
1441 | * gets reached, it'll be moved to the orphanage and we'll | |
1442 | * take care of it then. | |
1443 | */ | |
1444 | if (entry->namelen == 2 && namest->name[0] == '.' && | |
1445 | namest->name[1] == '.') { | |
1446 | continue; | |
1447 | } | |
1448 | ASSERT(no_modify || !verify_inum(mp, lino)); | |
1449 | ||
1450 | /* | |
1451 | * special case the . entry. we know there's only one | |
1452 | * '.' and only '.' points to itself because bogus entries | |
1453 | * got trashed in phase 3 if there were > 1. | |
1454 | * bump up link count for '.' but don't set reached | |
1455 | * until we're actually reached by another directory | |
1456 | * '..' is already accounted for or will be taken care | |
1457 | * of when directory is moved to orphanage. | |
1458 | */ | |
1459 | if (ino == lino) { | |
1460 | ASSERT(namest->name[0] == '.' && entry->namelen == 1); | |
1461 | add_inode_ref(current_irec, current_ino_offset); | |
1462 | *need_dot = 0; | |
1463 | continue; | |
1464 | } | |
1465 | ||
1466 | /* | |
1467 | * special case the "lost+found" entry if pointing | |
1468 | * to where we think lost+found should be. if that's | |
1469 | * the case, that's the one we created in phase 6. | |
1470 | * just skip it. no need to process it and it's .. | |
1471 | * link is already accounted for. | |
1472 | */ | |
1473 | ||
1474 | if (lino == orphanage_ino && strcmp(fname, ORPHANAGE) == 0) | |
1475 | continue; | |
1476 | ||
1477 | /* | |
1478 | * skip entries with bogus inumbers if we're in no modify mode | |
1479 | */ | |
1480 | if (no_modify && verify_inum(mp, lino)) | |
1481 | continue; | |
1482 | ||
1483 | /* | |
1484 | * ok, now handle the rest of the cases besides '.' and '..' | |
1485 | */ | |
1486 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, lino), | |
1487 | XFS_INO_TO_AGINO(mp, lino)); | |
dfc130f3 | 1488 | |
2bd0ea18 NS |
1489 | if (irec == NULL) { |
1490 | nbad++; | |
1491 | do_warn( | |
507f4e33 | 1492 | _("entry \"%s\" in dir inode %llu points to non-existent inode, "), |
2bd0ea18 NS |
1493 | fname, ino); |
1494 | ||
1495 | if (!no_modify) { | |
1496 | namest->name[0] = '/'; | |
1497 | *dirty = 1; | |
507f4e33 | 1498 | do_warn(_("marking entry to be junked\n")); |
2bd0ea18 | 1499 | } else { |
507f4e33 | 1500 | do_warn(_("would junk entry\n")); |
2bd0ea18 NS |
1501 | } |
1502 | ||
1503 | continue; | |
1504 | } | |
1505 | ||
1506 | ino_offset = XFS_INO_TO_AGINO(mp, lino) - irec->ino_startnum; | |
1507 | ||
1508 | /* | |
1509 | * if it's a free inode, blow out the entry. | |
1510 | * by now, any inode that we think is free | |
1511 | * really is free. | |
1512 | */ | |
1513 | if (is_inode_free(irec, ino_offset)) { | |
1514 | /* | |
1515 | * don't complain if this entry points to the old | |
1516 | * and now-free lost+found inode | |
1517 | */ | |
1518 | if (verbose || no_modify || lino != old_orphanage_ino) | |
1519 | do_warn( | |
507f4e33 | 1520 | _("entry \"%s\" in dir inode %llu points to free inode %llu"), |
2bd0ea18 NS |
1521 | fname, ino, lino); |
1522 | nbad++; | |
1523 | ||
1524 | if (!no_modify) { | |
1525 | if (verbose || lino != old_orphanage_ino) | |
507f4e33 NS |
1526 | do_warn( |
1527 | _(", marking entry to be junked\n")); | |
2bd0ea18 NS |
1528 | |
1529 | else | |
1530 | do_warn("\n"); | |
1531 | namest->name[0] = '/'; | |
1532 | *dirty = 1; | |
1533 | } else { | |
507f4e33 | 1534 | do_warn(_(", would junk entry\n")); |
2bd0ea18 NS |
1535 | } |
1536 | ||
1537 | continue; | |
1538 | } | |
1539 | ||
64c54486 BN |
1540 | /* |
1541 | * check for duplicate names in directory. | |
1542 | */ | |
33165ec3 BN |
1543 | if (!dir_hash_add(hashtab, (da_bno << mp->m_sb.sb_blocklog) + |
1544 | entry->nameidx, | |
1545 | lino, entry->namelen, namest->name)) { | |
64c54486 BN |
1546 | do_warn( |
1547 | _("entry \"%s\" (ino %llu) in dir %llu is a duplicate name"), | |
1548 | fname, lino, ino); | |
1549 | nbad++; | |
1550 | if (!no_modify) { | |
1551 | if (verbose) | |
1552 | do_warn( | |
1553 | _(", marking entry to be junked\n")); | |
1554 | else | |
1555 | do_warn("\n"); | |
1556 | namest->name[0] = '/'; | |
1557 | *dirty = 1; | |
1558 | } else { | |
1559 | do_warn(_(", would junk entry\n")); | |
1560 | } | |
1561 | continue; | |
1562 | } | |
2bd0ea18 NS |
1563 | /* |
1564 | * check easy case first, regular inode, just bump | |
1565 | * the link count and continue | |
1566 | */ | |
1567 | if (!inode_isadir(irec, ino_offset)) { | |
1568 | add_inode_reached(irec, ino_offset); | |
1569 | continue; | |
1570 | } | |
1571 | ||
1572 | parent = get_inode_parent(irec, ino_offset); | |
1573 | ASSERT(parent != 0); | |
1574 | ||
1575 | /* | |
1576 | * bump up the link counts in parent and child | |
1577 | * directory but if the link doesn't agree with | |
1578 | * the .. in the child, blow out the entry. | |
1579 | * if the directory has already been reached, | |
1580 | * blow away the entry also. | |
1581 | */ | |
1582 | if (is_inode_reached(irec, ino_offset)) { | |
1583 | junkit = 1; | |
1584 | do_warn( | |
507f4e33 | 1585 | _("entry \"%s\" in dir %llu points to an already connected dir inode %llu,\n"), |
2bd0ea18 NS |
1586 | fname, ino, lino); |
1587 | } else if (parent == ino) { | |
1588 | add_inode_reached(irec, ino_offset); | |
1589 | add_inode_ref(current_irec, current_ino_offset); | |
1590 | ||
a1d54891 | 1591 | if (!do_prefetch && !is_inode_refchecked(lino, irec, ino_offset)) |
2bd0ea18 NS |
1592 | push_dir(stack, lino); |
1593 | } else { | |
1594 | junkit = 1; | |
1595 | do_warn( | |
507f4e33 | 1596 | _("entry \"%s\" in dir ino %llu not consistent with .. value (%llu) in ino %llu,\n"), |
2bd0ea18 NS |
1597 | fname, ino, parent, lino); |
1598 | } | |
1599 | ||
1600 | if (junkit) { | |
1601 | junkit = 0; | |
1602 | nbad++; | |
1603 | ||
1604 | if (!no_modify) { | |
1605 | namest->name[0] = '/'; | |
1606 | *dirty = 1; | |
1607 | if (verbose || lino != old_orphanage_ino) | |
507f4e33 NS |
1608 | do_warn( |
1609 | _("\twill clear entry \"%s\"\n"), | |
2bd0ea18 NS |
1610 | fname); |
1611 | } else { | |
507f4e33 NS |
1612 | do_warn(_("\twould clear entry \"%s\"\n"), |
1613 | fname); | |
2bd0ea18 NS |
1614 | } |
1615 | } | |
1616 | } | |
1617 | ||
1618 | *num_illegal += nbad; | |
1619 | } | |
1620 | ||
1621 | /* | |
1622 | * succeeds or dies, inode never gets dirtied since all changes | |
1623 | * happen in file blocks. the inode size and other core info | |
1624 | * is already correct, it's just the leaf entries that get altered. | |
1625 | */ | |
1626 | void | |
1627 | longform_dir_entry_check(xfs_mount_t *mp, | |
1628 | xfs_ino_t ino, | |
1629 | xfs_inode_t *ip, | |
1630 | int *num_illegal, | |
1631 | int *need_dot, | |
1632 | dir_stack_t *stack, | |
1633 | ino_tree_node_t *irec, | |
64c54486 | 1634 | int ino_offset, |
33165ec3 | 1635 | dir_hash_tab_t *hashtab) |
2bd0ea18 NS |
1636 | { |
1637 | xfs_dir_leafblock_t *leaf; | |
1638 | xfs_buf_t *bp; | |
1639 | xfs_dfsbno_t fsbno; | |
1640 | xfs_fsblock_t fblock; | |
1641 | xfs_dablk_t da_bno; | |
1642 | int dirty; | |
1643 | int nmap; | |
1644 | int error; | |
1645 | int skipit; | |
1646 | xfs_bmbt_irec_t map; | |
1647 | char *ftype; | |
1648 | ||
1649 | da_bno = 0; | |
1650 | fblock = NULLFSBLOCK; | |
1651 | *need_dot = 1; | |
507f4e33 | 1652 | ftype = _("dir"); |
2bd0ea18 NS |
1653 | |
1654 | fsbno = map_first_dblock_fsbno(mp, ino, ip, &da_bno); | |
1655 | ||
1656 | if (fsbno == NULLDFSBNO && no_modify) { | |
507f4e33 | 1657 | do_warn(_("cannot map block 0 of directory inode %llu\n"), ino); |
2bd0ea18 NS |
1658 | return; |
1659 | } | |
1660 | ||
1661 | do { | |
1662 | ASSERT(fsbno != NULLDFSBNO); | |
1663 | skipit = 0; | |
1664 | ||
1665 | bp = libxfs_readbuf(mp->m_dev, XFS_FSB_TO_DADDR(mp, fsbno), | |
1666 | XFS_FSB_TO_BB(mp, 1), 0); | |
1667 | ||
1668 | if (!bp) { | |
1669 | do_error( | |
507f4e33 | 1670 | _("can't read block %u (fsbno %llu) for directory inode %llu\n"), |
2bd0ea18 NS |
1671 | da_bno, fsbno, ino); |
1672 | /* NOTREACHED */ | |
1673 | } | |
1674 | ||
1675 | leaf = (xfs_dir_leafblock_t *)XFS_BUF_PTR(bp); | |
1676 | ||
507f4e33 NS |
1677 | if (INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) != |
1678 | XFS_DIR_LEAF_MAGIC) { | |
2bd0ea18 NS |
1679 | if (!no_modify) { |
1680 | do_error( | |
507f4e33 NS |
1681 | _("bad magic # (0x%x) for dir ino %llu leaf block (bno %u fsbno %llu)\n"), |
1682 | INT_GET(leaf->hdr.info.magic, | |
1683 | ARCH_CONVERT), | |
2bd0ea18 NS |
1684 | ino, da_bno, fsbno); |
1685 | /* NOTREACHED */ | |
1686 | } else { | |
1687 | /* | |
1688 | * this block's bad but maybe the | |
1689 | * forward pointer is good... | |
1690 | */ | |
1691 | skipit = 1; | |
1692 | dirty = 0; | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | if (!skipit) | |
33165ec3 BN |
1697 | lf_block_dir_entry_check(mp, ino, leaf, &dirty, |
1698 | num_illegal, need_dot, stack, irec, | |
1699 | ino_offset, hashtab, da_bno); | |
1700 | ||
1701 | da_bno = INT_GET(leaf->hdr.info.forw, ARCH_CONVERT); | |
2bd0ea18 | 1702 | |
27527004 | 1703 | ASSERT(dirty == 0 || (dirty && !no_modify)); |
2bd0ea18 NS |
1704 | |
1705 | if (dirty && !no_modify) | |
1706 | libxfs_writebuf(bp, 0); | |
1707 | else | |
1708 | libxfs_putbuf(bp); | |
1709 | bp = NULL; | |
1710 | ||
1711 | if (da_bno != 0) { | |
1712 | nmap = 1; | |
1713 | error = libxfs_bmapi(NULL, ip, (xfs_fileoff_t)da_bno, 1, | |
1714 | XFS_BMAPI_METADATA, &fblock, 0, | |
1715 | &map, &nmap, NULL); | |
1716 | if (error || nmap != 1) { | |
1717 | if (!no_modify) | |
1718 | do_error( | |
507f4e33 | 1719 | _("can't map leaf block %d in dir %llu, xfs_bmapi returns %d, nmap = %d\n"), |
2bd0ea18 NS |
1720 | da_bno, ino, error, nmap); |
1721 | else { | |
1722 | do_warn( | |
507f4e33 | 1723 | _("can't map leaf block %d in dir %llu, xfs_bmapi returns %d, nmap = %d\n"), |
2bd0ea18 NS |
1724 | da_bno, ino, error, nmap); |
1725 | return; | |
1726 | } | |
1727 | } | |
1728 | if ((fsbno = map.br_startblock) == HOLESTARTBLOCK) { | |
1729 | if (!no_modify) | |
1730 | do_error( | |
507f4e33 | 1731 | _("block %d in %s ino %llu doesn't exist\n"), |
2bd0ea18 NS |
1732 | da_bno, ftype, ino); |
1733 | else { | |
1734 | do_warn( | |
507f4e33 | 1735 | _("block %d in %s ino %llu doesn't exist\n"), |
2bd0ea18 NS |
1736 | da_bno, ftype, ino); |
1737 | return; | |
1738 | } | |
1739 | } | |
1740 | } | |
1741 | } while (da_bno != 0); | |
1742 | } | |
1743 | ||
33165ec3 BN |
1744 | /* |
1745 | * Unexpected failure during the rebuild will leave the entries in | |
1746 | * lost+found on the next run | |
1747 | */ | |
1748 | ||
1749 | static void | |
1750 | longform_dir2_rebuild( | |
1751 | xfs_mount_t *mp, | |
1752 | xfs_ino_t ino, | |
1753 | xfs_inode_t *ip, | |
1754 | dir_hash_tab_t *hashtab) | |
1755 | { | |
1756 | int error; | |
1757 | int nres; | |
1758 | xfs_trans_t *tp; | |
1759 | xfs_fileoff_t lastblock; | |
1760 | xfs_fsblock_t firstblock; | |
1761 | xfs_bmap_free_t flist; | |
1762 | xfs_ino_t parentino; | |
1763 | xfs_inode_t *pip; | |
1764 | int byhash; | |
1765 | dir_hash_ent_t *p; | |
1766 | int committed; | |
1767 | int done; | |
1768 | ||
1769 | /* | |
1770 | * trash directory completely and rebuild from scratch using the | |
1771 | * name/inode pairs in the hash table | |
1772 | */ | |
1773 | ||
1774 | do_warn(_("rebuilding directory inode %llu\n"), ino); | |
1775 | ||
1776 | /* | |
1777 | * first attempt to locate the parent inode, if it can't be found, | |
1778 | * we'll use the lost+found inode | |
1779 | */ | |
1780 | byhash = DIR_HASH_FUNC(hashtab, libxfs_da_hashname((uchar_t*)"..", 2)); | |
1781 | parentino = orphanage_ino; | |
1782 | for (p = hashtab->byhash[byhash]; p; p = p->nextbyhash) { | |
1783 | if (p->namelen == 2 && p->name[0] == '.' && p->name[1] == '.') { | |
1784 | parentino = p->inum; | |
1785 | break; | |
1786 | } | |
1787 | } | |
1788 | ||
1789 | XFS_BMAP_INIT(&flist, &firstblock); | |
1790 | ||
1791 | tp = libxfs_trans_alloc(mp, 0); | |
1792 | nres = XFS_REMOVE_SPACE_RES(mp); | |
1793 | error = libxfs_trans_reserve(tp, nres, XFS_REMOVE_LOG_RES(mp), 0, | |
1794 | XFS_TRANS_PERM_LOG_RES, XFS_REMOVE_LOG_COUNT); | |
1795 | if (error) | |
1796 | res_failed(error); | |
1797 | libxfs_trans_ijoin(tp, ip, 0); | |
1798 | libxfs_trans_ihold(tp, ip); | |
1799 | ||
1800 | if ((error = libxfs_bmap_last_offset(tp, ip, &lastblock, | |
1801 | XFS_DATA_FORK))) | |
1802 | do_error(_("xfs_bmap_last_offset failed -- error - %d\n"), | |
1803 | error); | |
1804 | ||
1805 | /* re-init the directory to shortform */ | |
1806 | if ((error = libxfs_trans_iget(mp, tp, parentino, 0, 0, &pip))) { | |
1807 | do_warn( | |
1808 | _("couldn't iget parent inode %llu -- error - %d\n"), | |
1809 | parentino, error); | |
1810 | /* we'll try to use the orphanage ino then */ | |
1811 | parentino = orphanage_ino; | |
1812 | if ((error = libxfs_trans_iget(mp, tp, parentino, 0, 0, &pip))) | |
1813 | do_error( | |
1814 | _("couldn't iget lost+found inode %llu -- error - %d\n"), | |
1815 | parentino, error); | |
1816 | } | |
1817 | ||
1818 | /* free all data, leaf, node and freespace blocks */ | |
1819 | ||
1820 | if ((error = libxfs_bunmapi(tp, ip, 0, lastblock, | |
1821 | XFS_BMAPI_METADATA, 0, &firstblock, &flist, | |
1822 | &done))) { | |
1823 | do_warn(_("xfs_bunmapi failed -- error - %d\n"), error); | |
1824 | libxfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
1825 | XFS_TRANS_ABORT); | |
1826 | return; | |
1827 | } | |
1828 | ||
1829 | ASSERT(done); | |
1830 | ||
1831 | libxfs_dir2_init(tp, ip, pip); | |
1832 | ||
1833 | error = libxfs_bmap_finish(&tp, &flist, firstblock, &committed); | |
1834 | ||
1835 | libxfs_trans_commit(tp, | |
1836 | XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
1837 | ||
1838 | /* go through the hash list and re-add the inodes */ | |
1839 | ||
1840 | for (p = hashtab->first; p; p = p->nextbyorder) { | |
1841 | ||
1842 | if (p->name[0] == '/' || (p->name[0] == '.' && (p->namelen == 1 | |
1843 | || (p->namelen == 2 && p->name[1] == '.')))) | |
1844 | continue; | |
1845 | ||
1846 | tp = libxfs_trans_alloc(mp, 0); | |
1847 | nres = XFS_CREATE_SPACE_RES(mp, p->namelen); | |
1848 | if ((error = libxfs_trans_reserve(tp, nres, | |
1849 | XFS_CREATE_LOG_RES(mp), 0, | |
1850 | XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT))) { | |
1851 | do_warn( | |
1852 | _("space reservation failed (%d), filesystem may be out of space\n"), | |
1853 | error); | |
1854 | break; | |
1855 | } | |
1856 | ||
1857 | libxfs_trans_ijoin(tp, ip, 0); | |
1858 | libxfs_trans_ihold(tp, ip); | |
1859 | ||
1860 | XFS_BMAP_INIT(&flist, &firstblock); | |
04d3ada9 | 1861 | if ((error = libxfs_dir2_createname(tp, ip, (uchar_t *)p->name, |
33165ec3 BN |
1862 | p->namelen, p->inum, &firstblock, &flist, |
1863 | nres))) { | |
1864 | do_warn( | |
1865 | _("name create failed in ino %llu (%d), filesystem may be out of space\n"), | |
1866 | ino, error); | |
1867 | libxfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
1868 | XFS_TRANS_ABORT); | |
1869 | break; | |
1870 | } | |
1871 | ||
1872 | if ((error = libxfs_bmap_finish(&tp, &flist, firstblock, | |
1873 | &committed))) { | |
1874 | do_warn( | |
1875 | _("bmap finish failed (%d), filesystem may be out of space\n"), | |
1876 | error); | |
1877 | libxfs_bmap_cancel(&flist); | |
1878 | libxfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
1879 | XFS_TRANS_ABORT); | |
1880 | break; | |
1881 | } | |
1882 | ||
1883 | ||
1884 | libxfs_trans_commit(tp, | |
1885 | XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_SYNC, 0); | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | ||
2bd0ea18 NS |
1890 | /* |
1891 | * Kill a block in a version 2 inode. | |
1892 | * Makes its own transaction. | |
1893 | */ | |
1894 | static void | |
1895 | dir2_kill_block( | |
1896 | xfs_mount_t *mp, | |
1897 | xfs_inode_t *ip, | |
1898 | xfs_dablk_t da_bno, | |
1899 | xfs_dabuf_t *bp) | |
1900 | { | |
1901 | xfs_da_args_t args; | |
1902 | int committed; | |
1903 | int error; | |
1904 | xfs_fsblock_t firstblock; | |
1905 | xfs_bmap_free_t flist; | |
1906 | int nres; | |
1907 | xfs_trans_t *tp; | |
1908 | ||
1909 | tp = libxfs_trans_alloc(mp, 0); | |
1910 | nres = XFS_REMOVE_SPACE_RES(mp); | |
1911 | error = libxfs_trans_reserve(tp, nres, XFS_REMOVE_LOG_RES(mp), 0, | |
1912 | XFS_TRANS_PERM_LOG_RES, XFS_REMOVE_LOG_COUNT); | |
1913 | if (error) | |
1914 | res_failed(error); | |
1915 | libxfs_trans_ijoin(tp, ip, 0); | |
1916 | libxfs_trans_ihold(tp, ip); | |
1917 | libxfs_da_bjoin(tp, bp); | |
1918 | bzero(&args, sizeof(args)); | |
1919 | XFS_BMAP_INIT(&flist, &firstblock); | |
1920 | args.dp = ip; | |
1921 | args.trans = tp; | |
1922 | args.firstblock = &firstblock; | |
1923 | args.flist = &flist; | |
1924 | args.whichfork = XFS_DATA_FORK; | |
1925 | if (da_bno >= mp->m_dirleafblk && da_bno < mp->m_dirfreeblk) | |
1926 | error = libxfs_da_shrink_inode(&args, da_bno, bp); | |
1927 | else | |
1928 | error = libxfs_dir2_shrink_inode(&args, | |
1929 | XFS_DIR2_DA_TO_DB(mp, da_bno), bp); | |
1930 | if (error) | |
507f4e33 | 1931 | do_error(_("shrink_inode failed inode %llu block %u\n"), |
2bd0ea18 NS |
1932 | ip->i_ino, da_bno); |
1933 | libxfs_bmap_finish(&tp, &flist, firstblock, &committed); | |
1934 | libxfs_trans_commit(tp, 0, 0); | |
1935 | } | |
1936 | ||
1937 | /* | |
1938 | * process a data block, also checks for .. entry | |
1939 | * and corrects it to match what we think .. should be | |
1940 | */ | |
1941 | static void | |
1942 | longform_dir2_entry_check_data( | |
1943 | xfs_mount_t *mp, | |
1944 | xfs_inode_t *ip, | |
1945 | int *num_illegal, | |
1946 | int *need_dot, | |
1947 | dir_stack_t *stack, | |
1948 | ino_tree_node_t *current_irec, | |
1949 | int current_ino_offset, | |
1950 | xfs_dabuf_t **bpp, | |
1951 | dir_hash_tab_t *hashtab, | |
1952 | freetab_t **freetabp, | |
1953 | xfs_dablk_t da_bno, | |
1954 | int isblock) | |
1955 | { | |
1956 | xfs_dir2_dataptr_t addr; | |
1957 | xfs_dir2_leaf_entry_t *blp; | |
1958 | xfs_dabuf_t *bp; | |
1959 | xfs_dir2_block_tail_t *btp; | |
1960 | int committed; | |
1961 | xfs_dir2_data_t *d; | |
1962 | xfs_dir2_db_t db; | |
1963 | xfs_dir2_data_entry_t *dep; | |
1964 | xfs_dir2_data_unused_t *dup; | |
1965 | char *endptr; | |
1966 | int error; | |
1967 | xfs_fsblock_t firstblock; | |
1968 | xfs_bmap_free_t flist; | |
1969 | char fname[MAXNAMELEN + 1]; | |
1970 | freetab_t *freetab; | |
1971 | int i; | |
1972 | int ino_offset; | |
33165ec3 | 1973 | xfs_ino_t inum; |
2bd0ea18 NS |
1974 | ino_tree_node_t *irec; |
1975 | int junkit; | |
1976 | int lastfree; | |
1977 | int len; | |
1978 | int nbad; | |
1979 | int needlog; | |
1980 | int needscan; | |
1981 | xfs_ino_t parent; | |
1982 | char *ptr; | |
1983 | xfs_trans_t *tp; | |
1984 | int wantmagic; | |
1985 | ||
1986 | bp = *bpp; | |
1987 | d = bp->data; | |
1988 | ptr = (char *)d->u; | |
1989 | nbad = 0; | |
1990 | needscan = needlog = 0; | |
9d7d6241 | 1991 | junkit = 0; |
2bd0ea18 NS |
1992 | freetab = *freetabp; |
1993 | if (isblock) { | |
f302e9e4 | 1994 | btp = XFS_DIR2_BLOCK_TAIL_P(mp, (xfs_dir2_block_t *)d); |
46eca962 | 1995 | blp = XFS_DIR2_BLOCK_LEAF_P(btp); |
2bd0ea18 NS |
1996 | endptr = (char *)blp; |
1997 | if (endptr > (char *)btp) | |
1998 | endptr = (char *)btp; | |
1999 | wantmagic = XFS_DIR2_BLOCK_MAGIC; | |
2000 | } else { | |
2001 | endptr = (char *)d + mp->m_dirblksize; | |
2002 | wantmagic = XFS_DIR2_DATA_MAGIC; | |
2003 | } | |
2004 | db = XFS_DIR2_DA_TO_DB(mp, da_bno); | |
9d7d6241 NS |
2005 | |
2006 | /* check for data block beyond expected end */ | |
2bd0ea18 NS |
2007 | if (freetab->naents <= db) { |
2008 | struct freetab_ent e; | |
2009 | ||
2010 | *freetabp = freetab = realloc(freetab, FREETAB_SIZE(db + 1)); | |
2011 | if (!freetab) { | |
2012 | do_error( | |
507f4e33 | 2013 | _("realloc failed in longform_dir2_entry_check_data (%u bytes)\n"), |
2bd0ea18 | 2014 | FREETAB_SIZE(db + 1)); |
2bd0ea18 NS |
2015 | } |
2016 | e.v = NULLDATAOFF; | |
2017 | e.s = 0; | |
2018 | for (i = freetab->naents; i < db; i++) | |
2019 | freetab->ents[i] = e; | |
2020 | freetab->naents = db + 1; | |
2021 | } | |
9d7d6241 NS |
2022 | |
2023 | /* check the data block */ | |
2bd0ea18 | 2024 | while (ptr < endptr) { |
9d7d6241 NS |
2025 | |
2026 | /* check for freespace */ | |
2bd0ea18 | 2027 | dup = (xfs_dir2_data_unused_t *)ptr; |
9d7d6241 NS |
2028 | if (XFS_DIR2_DATA_FREE_TAG == |
2029 | INT_GET(dup->freetag, ARCH_CONVERT)) { | |
2030 | ||
2031 | /* check for invalid freespace length */ | |
2032 | if (ptr + INT_GET(dup->length, ARCH_CONVERT) > endptr || | |
2033 | INT_GET(dup->length, ARCH_CONVERT) == 0 || | |
2034 | (INT_GET(dup->length, ARCH_CONVERT) & | |
2035 | (XFS_DIR2_DATA_ALIGN - 1))) | |
2bd0ea18 | 2036 | break; |
9d7d6241 NS |
2037 | |
2038 | /* check for invalid tag */ | |
46eca962 NS |
2039 | if (INT_GET(*XFS_DIR2_DATA_UNUSED_TAG_P(dup), |
2040 | ARCH_CONVERT) != (char *)dup - (char *)d) | |
2bd0ea18 | 2041 | break; |
9d7d6241 NS |
2042 | |
2043 | /* check for block with no data entries */ | |
2044 | if ((ptr == (char *)d->u) && | |
2045 | (ptr + INT_GET(dup->length, ARCH_CONVERT) >= | |
2046 | endptr)) { | |
2047 | junkit = 1; | |
2048 | *num_illegal += 1; | |
2049 | break; | |
2050 | } | |
2051 | ||
2052 | /* continue at the end of the freespace */ | |
2bd0ea18 NS |
2053 | ptr += INT_GET(dup->length, ARCH_CONVERT); |
2054 | if (ptr >= endptr) | |
2055 | break; | |
2056 | } | |
9d7d6241 NS |
2057 | |
2058 | /* validate data entry size */ | |
2bd0ea18 NS |
2059 | dep = (xfs_dir2_data_entry_t *)ptr; |
2060 | if (ptr + XFS_DIR2_DATA_ENTSIZE(dep->namelen) > endptr) | |
2061 | break; | |
9d7d6241 NS |
2062 | if (INT_GET(*XFS_DIR2_DATA_ENTRY_TAG_P(dep), ARCH_CONVERT) != |
2063 | (char *)dep - (char *)d) | |
2bd0ea18 NS |
2064 | break; |
2065 | ptr += XFS_DIR2_DATA_ENTSIZE(dep->namelen); | |
2066 | } | |
9d7d6241 NS |
2067 | |
2068 | /* did we find an empty or corrupt block? */ | |
2bd0ea18 | 2069 | if (ptr != endptr) { |
9d7d6241 | 2070 | if (junkit) { |
507f4e33 NS |
2071 | do_warn( |
2072 | _("empty data block %u in directory inode %llu: "), | |
9d7d6241 NS |
2073 | da_bno, ip->i_ino); |
2074 | } else { | |
507f4e33 | 2075 | do_warn(_("corrupt block %u in directory inode %llu: "), |
9d7d6241 NS |
2076 | da_bno, ip->i_ino); |
2077 | } | |
2bd0ea18 | 2078 | if (!no_modify) { |
507f4e33 | 2079 | do_warn(_("junking block\n")); |
2bd0ea18 NS |
2080 | dir2_kill_block(mp, ip, da_bno, bp); |
2081 | } else { | |
507f4e33 | 2082 | do_warn(_("would junk block\n")); |
2bd0ea18 NS |
2083 | libxfs_da_brelse(NULL, bp); |
2084 | } | |
2085 | freetab->ents[db].v = NULLDATAOFF; | |
2086 | *bpp = NULL; | |
2087 | return; | |
2088 | } | |
9d7d6241 NS |
2089 | |
2090 | /* update number of data blocks processed */ | |
2091 | if (freetab->nents < db + 1) | |
2092 | freetab->nents = db + 1; | |
2093 | ||
2bd0ea18 NS |
2094 | tp = libxfs_trans_alloc(mp, 0); |
2095 | error = libxfs_trans_reserve(tp, 0, XFS_REMOVE_LOG_RES(mp), 0, | |
2096 | XFS_TRANS_PERM_LOG_RES, XFS_REMOVE_LOG_COUNT); | |
2097 | if (error) | |
2098 | res_failed(error); | |
2099 | libxfs_trans_ijoin(tp, ip, 0); | |
2100 | libxfs_trans_ihold(tp, ip); | |
2101 | libxfs_da_bjoin(tp, bp); | |
33165ec3 | 2102 | libxfs_da_bhold(tp, bp); |
2bd0ea18 NS |
2103 | XFS_BMAP_INIT(&flist, &firstblock); |
2104 | if (INT_GET(d->hdr.magic, ARCH_CONVERT) != wantmagic) { | |
507f4e33 NS |
2105 | do_warn(_("bad directory block magic # %#x for directory inode " |
2106 | "%llu block %d: "), | |
2bd0ea18 NS |
2107 | INT_GET(d->hdr.magic, ARCH_CONVERT), ip->i_ino, da_bno); |
2108 | if (!no_modify) { | |
507f4e33 | 2109 | do_warn(_("fixing magic # to %#x\n"), wantmagic); |
2bd0ea18 NS |
2110 | INT_SET(d->hdr.magic, ARCH_CONVERT, wantmagic); |
2111 | needlog = 1; | |
2112 | } else | |
507f4e33 | 2113 | do_warn(_("would fix magic # to %#x\n"), wantmagic); |
2bd0ea18 NS |
2114 | } |
2115 | lastfree = 0; | |
2116 | ptr = (char *)d->u; | |
2117 | /* | |
2118 | * look at each entry. reference inode pointed to by each | |
2119 | * entry in the incore inode tree. | |
2120 | * if not a directory, set reached flag, increment link count | |
2121 | * if a directory and reached, mark entry as to be deleted. | |
2122 | * if a directory, check to see if recorded parent | |
2123 | * matches current inode #, | |
2124 | * if so, then set reached flag, increment link count | |
2125 | * of current and child dir inodes, push the child | |
2126 | * directory inode onto the directory stack. | |
2127 | * if current inode != parent, then mark entry to be deleted. | |
2128 | */ | |
2129 | while (ptr < endptr) { | |
2130 | dup = (xfs_dir2_data_unused_t *)ptr; | |
507f4e33 | 2131 | if (INT_GET(dup->freetag, ARCH_CONVERT) == |
33165ec3 | 2132 | XFS_DIR2_DATA_FREE_TAG) { |
2bd0ea18 | 2133 | if (lastfree) { |
507f4e33 NS |
2134 | do_warn(_("directory inode %llu block %u has " |
2135 | "consecutive free entries: "), | |
2bd0ea18 NS |
2136 | ip->i_ino, da_bno); |
2137 | if (!no_modify) { | |
507f4e33 | 2138 | do_warn(_("joining together\n")); |
2bd0ea18 NS |
2139 | len = INT_GET(dup->length, ARCH_CONVERT); |
2140 | libxfs_dir2_data_use_free(tp, bp, dup, | |
2141 | ptr - (char *)d, len, &needlog, | |
2142 | &needscan); | |
2143 | libxfs_dir2_data_make_free(tp, bp, | |
2144 | ptr - (char *)d, len, &needlog, | |
2145 | &needscan); | |
2146 | } else | |
507f4e33 | 2147 | do_warn(_("would join together\n")); |
2bd0ea18 NS |
2148 | } |
2149 | ptr += INT_GET(dup->length, ARCH_CONVERT); | |
2150 | lastfree = 1; | |
2151 | continue; | |
2152 | } | |
2153 | addr = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, db, ptr - (char *)d); | |
2154 | dep = (xfs_dir2_data_entry_t *)ptr; | |
2155 | ptr += XFS_DIR2_DATA_ENTSIZE(dep->namelen); | |
33165ec3 | 2156 | inum = INT_GET(dep->inumber, ARCH_CONVERT); |
2bd0ea18 | 2157 | lastfree = 0; |
33165ec3 BN |
2158 | if (!dir_hash_add(hashtab, addr, inum, dep->namelen, |
2159 | dep->name)) { | |
2160 | do_warn( | |
2161 | _("entry \"%s\" (ino %llu) in dir %llu is a duplicate name"), | |
2162 | fname, inum, ip->i_ino); | |
2163 | if (!no_modify) { | |
2164 | if (verbose) | |
2165 | do_warn( | |
2166 | _(", marking entry to be junked\n")); | |
2167 | else | |
2168 | do_warn("\n"); | |
2169 | } else { | |
2170 | do_warn(_(", would junk entry\n")); | |
2171 | } | |
2172 | dep->name[0] = '/'; | |
2173 | } | |
2bd0ea18 NS |
2174 | /* |
2175 | * skip bogus entries (leading '/'). they'll be deleted | |
c7f277c9 NS |
2176 | * later. must still log it, else we leak references to |
2177 | * buffers. | |
2bd0ea18 NS |
2178 | */ |
2179 | if (dep->name[0] == '/') { | |
2180 | nbad++; | |
c7f277c9 NS |
2181 | if (!no_modify) |
2182 | libxfs_dir2_data_log_entry(tp, bp, dep); | |
2bd0ea18 NS |
2183 | continue; |
2184 | } | |
2185 | junkit = 0; | |
2186 | bcopy(dep->name, fname, dep->namelen); | |
2187 | fname[dep->namelen] = '\0'; | |
33165ec3 | 2188 | ASSERT(inum != NULLFSINO); |
2bd0ea18 NS |
2189 | /* |
2190 | * skip the '..' entry since it's checked when the | |
2191 | * directory is reached by something else. if it never | |
2192 | * gets reached, it'll be moved to the orphanage and we'll | |
2193 | * take care of it then. | |
2194 | */ | |
2195 | if (dep->namelen == 2 && dep->name[0] == '.' && | |
2196 | dep->name[1] == '.') | |
2197 | continue; | |
33165ec3 | 2198 | ASSERT(no_modify || !verify_inum(mp, inum)); |
2bd0ea18 NS |
2199 | /* |
2200 | * special case the . entry. we know there's only one | |
2201 | * '.' and only '.' points to itself because bogus entries | |
2202 | * got trashed in phase 3 if there were > 1. | |
2203 | * bump up link count for '.' but don't set reached | |
2204 | * until we're actually reached by another directory | |
2205 | * '..' is already accounted for or will be taken care | |
2206 | * of when directory is moved to orphanage. | |
2207 | */ | |
33165ec3 | 2208 | if (ip->i_ino == inum) { |
2bd0ea18 NS |
2209 | ASSERT(dep->name[0] == '.' && dep->namelen == 1); |
2210 | add_inode_ref(current_irec, current_ino_offset); | |
2211 | *need_dot = 0; | |
2212 | continue; | |
2213 | } | |
2214 | /* | |
2215 | * special case the "lost+found" entry if pointing | |
2216 | * to where we think lost+found should be. if that's | |
2217 | * the case, that's the one we created in phase 6. | |
2218 | * just skip it. no need to process it and it's .. | |
2219 | * link is already accounted for. | |
2220 | */ | |
33165ec3 | 2221 | if (inum == orphanage_ino && strcmp(fname, ORPHANAGE) == 0) |
2bd0ea18 NS |
2222 | continue; |
2223 | /* | |
2224 | * skip entries with bogus inumbers if we're in no modify mode | |
2225 | */ | |
33165ec3 | 2226 | if (no_modify && verify_inum(mp, inum)) |
2bd0ea18 NS |
2227 | continue; |
2228 | /* | |
2229 | * ok, now handle the rest of the cases besides '.' and '..' | |
2230 | */ | |
33165ec3 BN |
2231 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, inum), |
2232 | XFS_INO_TO_AGINO(mp, inum)); | |
2bd0ea18 NS |
2233 | if (irec == NULL) { |
2234 | nbad++; | |
507f4e33 NS |
2235 | do_warn(_("entry \"%s\" in directory inode %llu points " |
2236 | "to non-existent inode, "), | |
2bd0ea18 NS |
2237 | fname, ip->i_ino); |
2238 | if (!no_modify) { | |
2239 | dep->name[0] = '/'; | |
2240 | libxfs_dir2_data_log_entry(tp, bp, dep); | |
507f4e33 | 2241 | do_warn(_("marking entry to be junked\n")); |
2bd0ea18 | 2242 | } else { |
507f4e33 | 2243 | do_warn(_("would junk entry\n")); |
2bd0ea18 NS |
2244 | } |
2245 | continue; | |
2246 | } | |
33165ec3 | 2247 | ino_offset = XFS_INO_TO_AGINO(mp, inum) - irec->ino_startnum; |
2bd0ea18 NS |
2248 | /* |
2249 | * if it's a free inode, blow out the entry. | |
2250 | * by now, any inode that we think is free | |
2251 | * really is free. | |
2252 | */ | |
2253 | if (is_inode_free(irec, ino_offset)) { | |
2254 | /* | |
2255 | * don't complain if this entry points to the old | |
2256 | * and now-free lost+found inode | |
2257 | */ | |
33165ec3 | 2258 | if (verbose || no_modify || inum != old_orphanage_ino) |
507f4e33 NS |
2259 | do_warn( |
2260 | _("entry \"%s\" in directory inode %llu points to free inode %llu"), | |
33165ec3 | 2261 | fname, ip->i_ino, inum); |
2bd0ea18 NS |
2262 | nbad++; |
2263 | if (!no_modify) { | |
33165ec3 | 2264 | if (verbose || inum != old_orphanage_ino) |
507f4e33 NS |
2265 | do_warn( |
2266 | _(", marking entry to be junked\n")); | |
2bd0ea18 NS |
2267 | else |
2268 | do_warn("\n"); | |
2269 | dep->name[0] = '/'; | |
2270 | libxfs_dir2_data_log_entry(tp, bp, dep); | |
2271 | } else { | |
507f4e33 | 2272 | do_warn(_(", would junk entry\n")); |
2bd0ea18 NS |
2273 | } |
2274 | continue; | |
2275 | } | |
2276 | /* | |
2277 | * check easy case first, regular inode, just bump | |
2278 | * the link count and continue | |
2279 | */ | |
2280 | if (!inode_isadir(irec, ino_offset)) { | |
2281 | add_inode_reached(irec, ino_offset); | |
2282 | continue; | |
2283 | } | |
2284 | parent = get_inode_parent(irec, ino_offset); | |
2285 | ASSERT(parent != 0); | |
2286 | /* | |
2287 | * bump up the link counts in parent and child | |
2288 | * directory but if the link doesn't agree with | |
2289 | * the .. in the child, blow out the entry. | |
2290 | * if the directory has already been reached, | |
2291 | * blow away the entry also. | |
2292 | */ | |
2293 | if (is_inode_reached(irec, ino_offset)) { | |
2294 | junkit = 1; | |
507f4e33 NS |
2295 | do_warn( |
2296 | _("entry \"%s\" in dir %llu points to an already connected directory inode %llu,\n"), | |
33165ec3 | 2297 | fname, ip->i_ino, inum); |
2bd0ea18 NS |
2298 | } else if (parent == ip->i_ino) { |
2299 | add_inode_reached(irec, ino_offset); | |
2300 | add_inode_ref(current_irec, current_ino_offset); | |
a1d54891 | 2301 | if (!do_prefetch && !is_inode_refchecked(inum, irec, ino_offset)) |
33165ec3 | 2302 | push_dir(stack, inum); |
2bd0ea18 NS |
2303 | } else { |
2304 | junkit = 1; | |
507f4e33 NS |
2305 | do_warn( |
2306 | _("entry \"%s\" in dir inode %llu inconsistent with .. value (%llu) in ino %llu,\n"), | |
33165ec3 | 2307 | fname, ip->i_ino, parent, inum); |
2bd0ea18 NS |
2308 | } |
2309 | if (junkit) { | |
2310 | junkit = 0; | |
2311 | nbad++; | |
2312 | if (!no_modify) { | |
2313 | dep->name[0] = '/'; | |
2314 | libxfs_dir2_data_log_entry(tp, bp, dep); | |
33165ec3 | 2315 | if (verbose || inum != old_orphanage_ino) |
507f4e33 NS |
2316 | do_warn( |
2317 | _("\twill clear entry \"%s\"\n"), | |
2bd0ea18 NS |
2318 | fname); |
2319 | } else { | |
507f4e33 NS |
2320 | do_warn(_("\twould clear entry \"%s\"\n"), |
2321 | fname); | |
2bd0ea18 NS |
2322 | } |
2323 | } | |
2324 | } | |
2325 | *num_illegal += nbad; | |
2326 | if (needscan) | |
2327 | libxfs_dir2_data_freescan(mp, d, &needlog, NULL); | |
2328 | if (needlog) | |
2329 | libxfs_dir2_data_log_header(tp, bp); | |
2330 | libxfs_bmap_finish(&tp, &flist, firstblock, &committed); | |
2331 | libxfs_trans_commit(tp, 0, 0); | |
2332 | freetab->ents[db].v = INT_GET(d->hdr.bestfree[0].length, ARCH_CONVERT); | |
2333 | freetab->ents[db].s = 0; | |
2334 | } | |
2335 | ||
2336 | /* | |
2337 | * Check contents of leaf-form block. | |
2338 | */ | |
2339 | int | |
2340 | longform_dir2_check_leaf( | |
2341 | xfs_mount_t *mp, | |
2342 | xfs_inode_t *ip, | |
2343 | dir_hash_tab_t *hashtab, | |
2344 | freetab_t *freetab) | |
2345 | { | |
2346 | int badtail; | |
2347 | xfs_dir2_data_off_t *bestsp; | |
2348 | xfs_dabuf_t *bp; | |
2349 | xfs_dablk_t da_bno; | |
2350 | int i; | |
2351 | xfs_dir2_leaf_t *leaf; | |
2352 | xfs_dir2_leaf_tail_t *ltp; | |
2353 | int seeval; | |
2354 | ||
2355 | da_bno = mp->m_dirleafblk; | |
2356 | if (libxfs_da_read_bufr(NULL, ip, da_bno, -1, &bp, XFS_DATA_FORK)) { | |
507f4e33 | 2357 | do_error(_("can't read block %u for directory inode %llu\n"), |
2bd0ea18 NS |
2358 | da_bno, ip->i_ino); |
2359 | /* NOTREACHED */ | |
2360 | } | |
2361 | leaf = bp->data; | |
2362 | ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); | |
46eca962 | 2363 | bestsp = XFS_DIR2_LEAF_BESTS_P(ltp); |
507f4e33 NS |
2364 | if (INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) != |
2365 | XFS_DIR2_LEAF1_MAGIC || | |
2366 | INT_GET(leaf->hdr.info.forw, ARCH_CONVERT) || | |
2367 | INT_GET(leaf->hdr.info.back, ARCH_CONVERT) || | |
2368 | INT_GET(leaf->hdr.count, ARCH_CONVERT) < | |
2369 | INT_GET(leaf->hdr.stale, ARCH_CONVERT) || | |
2370 | INT_GET(leaf->hdr.count, ARCH_CONVERT) > | |
2371 | XFS_DIR2_MAX_LEAF_ENTS(mp) || | |
2372 | (char *)&leaf->ents[INT_GET(leaf->hdr.count, ARCH_CONVERT)] > | |
2373 | (char *)bestsp) { | |
2374 | do_warn( | |
2375 | _("leaf block %u for directory inode %llu bad header\n"), | |
2bd0ea18 NS |
2376 | da_bno, ip->i_ino); |
2377 | libxfs_da_brelse(NULL, bp); | |
2378 | return 1; | |
2379 | } | |
507f4e33 NS |
2380 | seeval = dir_hash_see_all(hashtab, leaf->ents, |
2381 | INT_GET(leaf->hdr.count, ARCH_CONVERT), | |
2bd0ea18 NS |
2382 | INT_GET(leaf->hdr.stale, ARCH_CONVERT)); |
2383 | if (dir_hash_check(hashtab, ip, seeval)) { | |
2384 | libxfs_da_brelse(NULL, bp); | |
2385 | return 1; | |
2386 | } | |
2387 | badtail = freetab->nents != INT_GET(ltp->bestcount, ARCH_CONVERT); | |
2388 | for (i = 0; !badtail && i < INT_GET(ltp->bestcount, ARCH_CONVERT); i++) { | |
2389 | freetab->ents[i].s = 1; | |
2390 | badtail = freetab->ents[i].v != INT_GET(bestsp[i], ARCH_CONVERT); | |
2391 | } | |
2392 | if (badtail) { | |
507f4e33 | 2393 | do_warn(_("leaf block %u for directory inode %llu bad tail\n"), |
2bd0ea18 NS |
2394 | da_bno, ip->i_ino); |
2395 | libxfs_da_brelse(NULL, bp); | |
2396 | return 1; | |
2397 | } | |
2398 | libxfs_da_brelse(NULL, bp); | |
2399 | return 0; | |
2400 | } | |
2401 | ||
2402 | /* | |
2403 | * Check contents of the node blocks (leaves) | |
2404 | * Looks for matching hash values for the data entries. | |
2405 | */ | |
2406 | int | |
2407 | longform_dir2_check_node( | |
2408 | xfs_mount_t *mp, | |
2409 | xfs_inode_t *ip, | |
2410 | dir_hash_tab_t *hashtab, | |
2411 | freetab_t *freetab) | |
2412 | { | |
2413 | xfs_dabuf_t *bp; | |
2414 | xfs_dablk_t da_bno; | |
2415 | xfs_dir2_db_t fdb; | |
2416 | xfs_dir2_free_t *free; | |
2417 | int i; | |
2418 | xfs_dir2_leaf_t *leaf; | |
2419 | xfs_fileoff_t next_da_bno; | |
2420 | int seeval = 0; | |
2421 | int used; | |
33165ec3 | 2422 | |
2bd0ea18 NS |
2423 | for (da_bno = mp->m_dirleafblk, next_da_bno = 0; |
2424 | next_da_bno != NULLFILEOFF && da_bno < mp->m_dirfreeblk; | |
2425 | da_bno = (xfs_dablk_t)next_da_bno) { | |
2426 | next_da_bno = da_bno + mp->m_dirblkfsbs - 1; | |
33165ec3 | 2427 | if (libxfs_bmap_next_offset(NULL, ip, &next_da_bno, XFS_DATA_FORK)) |
2bd0ea18 NS |
2428 | break; |
2429 | if (libxfs_da_read_bufr(NULL, ip, da_bno, -1, &bp, | |
2430 | XFS_DATA_FORK)) { | |
33165ec3 BN |
2431 | do_warn( |
2432 | _("can't read leaf block %u for directory inode %llu\n"), | |
2bd0ea18 | 2433 | da_bno, ip->i_ino); |
33165ec3 | 2434 | return 1; |
2bd0ea18 NS |
2435 | } |
2436 | leaf = bp->data; | |
507f4e33 NS |
2437 | if (INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) != |
2438 | XFS_DIR2_LEAFN_MAGIC) { | |
2439 | if (INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == | |
2440 | XFS_DA_NODE_MAGIC) { | |
2bd0ea18 NS |
2441 | libxfs_da_brelse(NULL, bp); |
2442 | continue; | |
2443 | } | |
507f4e33 NS |
2444 | do_warn(_("unknown magic number %#x for block %u in " |
2445 | "directory inode %llu\n"), | |
2446 | INT_GET(leaf->hdr.info.magic, ARCH_CONVERT), | |
2447 | da_bno, ip->i_ino); | |
2bd0ea18 NS |
2448 | libxfs_da_brelse(NULL, bp); |
2449 | return 1; | |
2450 | } | |
507f4e33 NS |
2451 | if (INT_GET(leaf->hdr.count, ARCH_CONVERT) < |
2452 | INT_GET(leaf->hdr.stale, ARCH_CONVERT) || | |
2453 | INT_GET(leaf->hdr.count, ARCH_CONVERT) > | |
2454 | XFS_DIR2_MAX_LEAF_ENTS(mp)) { | |
2455 | do_warn(_("leaf block %u for directory inode %llu bad " | |
2456 | "header\n"), | |
2bd0ea18 NS |
2457 | da_bno, ip->i_ino); |
2458 | libxfs_da_brelse(NULL, bp); | |
2459 | return 1; | |
2460 | } | |
2461 | seeval = dir_hash_see_all(hashtab, leaf->ents, INT_GET(leaf->hdr.count, ARCH_CONVERT), | |
2462 | INT_GET(leaf->hdr.stale, ARCH_CONVERT)); | |
2463 | libxfs_da_brelse(NULL, bp); | |
33165ec3 | 2464 | if (seeval != DIR_HASH_CK_OK) |
2bd0ea18 NS |
2465 | return 1; |
2466 | } | |
33165ec3 | 2467 | if (dir_hash_check(hashtab, ip, seeval)) |
2bd0ea18 | 2468 | return 1; |
33165ec3 | 2469 | |
2bd0ea18 NS |
2470 | for (da_bno = mp->m_dirfreeblk, next_da_bno = 0; |
2471 | next_da_bno != NULLFILEOFF; | |
2472 | da_bno = (xfs_dablk_t)next_da_bno) { | |
2473 | next_da_bno = da_bno + mp->m_dirblkfsbs - 1; | |
33165ec3 | 2474 | if (libxfs_bmap_next_offset(NULL, ip, &next_da_bno, XFS_DATA_FORK)) |
2bd0ea18 NS |
2475 | break; |
2476 | if (libxfs_da_read_bufr(NULL, ip, da_bno, -1, &bp, | |
2477 | XFS_DATA_FORK)) { | |
33165ec3 BN |
2478 | do_warn( |
2479 | _("can't read freespace block %u for directory inode %llu\n"), | |
2bd0ea18 | 2480 | da_bno, ip->i_ino); |
33165ec3 | 2481 | return 1; |
2bd0ea18 NS |
2482 | } |
2483 | free = bp->data; | |
2484 | fdb = XFS_DIR2_DA_TO_DB(mp, da_bno); | |
507f4e33 NS |
2485 | if (INT_GET(free->hdr.magic, ARCH_CONVERT) != |
2486 | XFS_DIR2_FREE_MAGIC || | |
2bd0ea18 | 2487 | INT_GET(free->hdr.firstdb, ARCH_CONVERT) != |
507f4e33 NS |
2488 | (fdb - XFS_DIR2_FREE_FIRSTDB(mp)) * |
2489 | XFS_DIR2_MAX_FREE_BESTS(mp) || | |
2490 | INT_GET(free->hdr.nvalid, ARCH_CONVERT) < | |
2491 | INT_GET(free->hdr.nused, ARCH_CONVERT)) { | |
2492 | do_warn(_("free block %u for directory inode %llu bad " | |
2493 | "header\n"), | |
2bd0ea18 NS |
2494 | da_bno, ip->i_ino); |
2495 | libxfs_da_brelse(NULL, bp); | |
2496 | return 1; | |
2497 | } | |
2498 | for (i = used = 0; i < INT_GET(free->hdr.nvalid, ARCH_CONVERT); i++) { | |
507f4e33 NS |
2499 | if (i + INT_GET(free->hdr.firstdb, ARCH_CONVERT) >= |
2500 | freetab->nents || | |
2501 | freetab->ents[i + INT_GET(free->hdr.firstdb, | |
2502 | ARCH_CONVERT)].v != | |
2bd0ea18 | 2503 | INT_GET(free->bests[i], ARCH_CONVERT)) { |
507f4e33 NS |
2504 | do_warn( |
2505 | _("free block %u entry %i for directory ino %llu bad\n"), | |
2bd0ea18 NS |
2506 | da_bno, i, ip->i_ino); |
2507 | libxfs_da_brelse(NULL, bp); | |
2508 | return 1; | |
2509 | } | |
2510 | used += INT_GET(free->bests[i], ARCH_CONVERT) != NULLDATAOFF; | |
2511 | freetab->ents[i + INT_GET(free->hdr.firstdb, ARCH_CONVERT)].s = 1; | |
2512 | } | |
2513 | if (used != INT_GET(free->hdr.nused, ARCH_CONVERT)) { | |
507f4e33 NS |
2514 | do_warn(_("free block %u for directory inode %llu bad " |
2515 | "nused\n"), | |
2bd0ea18 NS |
2516 | da_bno, ip->i_ino); |
2517 | libxfs_da_brelse(NULL, bp); | |
2518 | return 1; | |
2519 | } | |
2520 | libxfs_da_brelse(NULL, bp); | |
2521 | } | |
2522 | for (i = 0; i < freetab->nents; i++) { | |
4b6a2d8e NS |
2523 | if ((freetab->ents[i].s == 0) && |
2524 | (freetab->ents[i].v != NULLDATAOFF)) { | |
507f4e33 NS |
2525 | do_warn(_("missing freetab entry %u for " |
2526 | "directory inode %llu\n"), | |
2bd0ea18 NS |
2527 | i, ip->i_ino); |
2528 | return 1; | |
2529 | } | |
2530 | } | |
2531 | return 0; | |
2532 | } | |
2533 | ||
2534 | /* | |
33165ec3 BN |
2535 | * If a directory is corrupt, we need to read in as many entries as possible, |
2536 | * destroy the entry and create a new one with recovered name/inode pairs. | |
2537 | * (ie. get libxfs to do all the grunt work) | |
2bd0ea18 NS |
2538 | */ |
2539 | void | |
2540 | longform_dir2_entry_check(xfs_mount_t *mp, | |
2541 | xfs_ino_t ino, | |
2542 | xfs_inode_t *ip, | |
2543 | int *num_illegal, | |
2544 | int *need_dot, | |
2545 | dir_stack_t *stack, | |
2546 | ino_tree_node_t *irec, | |
64c54486 | 2547 | int ino_offset, |
33165ec3 | 2548 | dir_hash_tab_t *hashtab) |
2bd0ea18 NS |
2549 | { |
2550 | xfs_dir2_block_t *block; | |
2551 | xfs_dir2_leaf_entry_t *blp; | |
33165ec3 | 2552 | xfs_dabuf_t **bplist; |
2bd0ea18 NS |
2553 | xfs_dir2_block_tail_t *btp; |
2554 | xfs_dablk_t da_bno; | |
2555 | freetab_t *freetab; | |
95dff16b | 2556 | int num_bps; |
2bd0ea18 NS |
2557 | int i; |
2558 | int isblock; | |
2559 | int isleaf; | |
2560 | xfs_fileoff_t next_da_bno; | |
2561 | int seeval; | |
2562 | int fixit; | |
95dff16b | 2563 | xfs_dir2_db_t db; |
2bd0ea18 NS |
2564 | |
2565 | *need_dot = 1; | |
2566 | freetab = malloc(FREETAB_SIZE(ip->i_d.di_size / mp->m_dirblksize)); | |
2567 | if (!freetab) { | |
2568 | do_error( | |
507f4e33 | 2569 | _("malloc failed in longform_dir2_entry_check (%u bytes)\n"), |
2bd0ea18 NS |
2570 | FREETAB_SIZE(ip->i_d.di_size / mp->m_dirblksize)); |
2571 | exit(1); | |
2572 | } | |
2573 | freetab->naents = ip->i_d.di_size / mp->m_dirblksize; | |
2574 | freetab->nents = 0; | |
2575 | for (i = 0; i < freetab->naents; i++) { | |
2576 | freetab->ents[i].v = NULLDATAOFF; | |
2577 | freetab->ents[i].s = 0; | |
2578 | } | |
95dff16b BN |
2579 | num_bps = freetab->naents; |
2580 | bplist = calloc(num_bps, sizeof(xfs_dabuf_t*)); | |
9d7d6241 | 2581 | /* is this a block, leaf, or node directory? */ |
2bd0ea18 NS |
2582 | libxfs_dir2_isblock(NULL, ip, &isblock); |
2583 | libxfs_dir2_isleaf(NULL, ip, &isleaf); | |
9d7d6241 | 2584 | |
cb5b3ef4 MV |
2585 | if (do_prefetch && !isblock) |
2586 | prefetch_p6_dir2(mp, ip); | |
2587 | ||
33165ec3 | 2588 | /* check directory "data" blocks (ie. name/inode pairs) */ |
2bd0ea18 NS |
2589 | for (da_bno = 0, next_da_bno = 0; |
2590 | next_da_bno != NULLFILEOFF && da_bno < mp->m_dirleafblk; | |
2591 | da_bno = (xfs_dablk_t)next_da_bno) { | |
2592 | next_da_bno = da_bno + mp->m_dirblkfsbs - 1; | |
2593 | if (libxfs_bmap_next_offset(NULL, ip, &next_da_bno, XFS_DATA_FORK)) | |
2594 | break; | |
95dff16b BN |
2595 | db = XFS_DIR2_DA_TO_DB(mp, da_bno); |
2596 | if (db >= num_bps) { | |
2597 | /* more data blocks than expected */ | |
2598 | num_bps = db + 1; | |
2599 | bplist = realloc(bplist, num_bps * sizeof(xfs_dabuf_t*)); | |
2600 | if (!bplist) | |
2601 | do_error( | |
2602 | _("realloc failed in longform_dir2_entry_check (%u bytes)\n"), | |
2603 | num_bps * sizeof(xfs_dabuf_t*)); | |
2604 | } | |
2605 | if (libxfs_da_read_bufr(NULL, ip, da_bno, -1, &bplist[db], | |
33165ec3 BN |
2606 | XFS_DATA_FORK)) { |
2607 | do_warn(_( | |
2608 | "can't read data block %u for directory inode %llu\n"), | |
2bd0ea18 | 2609 | da_bno, ino); |
95dff16b | 2610 | *num_illegal += 1; |
33165ec3 | 2611 | continue; /* try and read all "data" blocks */ |
2bd0ea18 NS |
2612 | } |
2613 | longform_dir2_entry_check_data(mp, ip, num_illegal, need_dot, | |
95dff16b | 2614 | stack, irec, ino_offset, &bplist[db], hashtab, |
33165ec3 | 2615 | &freetab, da_bno, isblock); |
2bd0ea18 NS |
2616 | } |
2617 | fixit = (*num_illegal != 0) || dir2_is_badino(ino); | |
9d7d6241 NS |
2618 | |
2619 | /* check btree and freespace */ | |
2bd0ea18 | 2620 | if (isblock) { |
33165ec3 | 2621 | block = bplist[0]->data; |
2bd0ea18 | 2622 | btp = XFS_DIR2_BLOCK_TAIL_P(mp, block); |
46eca962 | 2623 | blp = XFS_DIR2_BLOCK_LEAF_P(btp); |
33165ec3 BN |
2624 | seeval = dir_hash_see_all(hashtab, blp, |
2625 | INT_GET(btp->count, ARCH_CONVERT), | |
2626 | INT_GET(btp->stale, ARCH_CONVERT)); | |
2bd0ea18 NS |
2627 | if (dir_hash_check(hashtab, ip, seeval)) |
2628 | fixit |= 1; | |
2bd0ea18 NS |
2629 | } else if (isleaf) { |
2630 | fixit |= longform_dir2_check_leaf(mp, ip, hashtab, freetab); | |
2631 | } else { | |
2632 | fixit |= longform_dir2_check_node(mp, ip, hashtab, freetab); | |
2633 | } | |
33165ec3 BN |
2634 | if (!no_modify && fixit) { |
2635 | dir_hash_dup_names(hashtab); | |
2636 | for (i = 0; i < freetab->naents; i++) | |
2637 | if (bplist[i]) | |
2638 | libxfs_da_brelse(NULL, bplist[i]); | |
2639 | longform_dir2_rebuild(mp, ino, ip, hashtab); | |
2640 | *num_illegal = 0; | |
2641 | } else { | |
2642 | for (i = 0; i < freetab->naents; i++) | |
2643 | if (bplist[i]) | |
2644 | libxfs_da_brelse(NULL, bplist[i]); | |
2645 | } | |
2646 | ||
95dff16b | 2647 | free(bplist); |
2bd0ea18 NS |
2648 | free(freetab); |
2649 | } | |
2650 | ||
2651 | /* | |
2652 | * shortform directory processing routines -- entry verification and | |
2653 | * bad entry deletion (pruning). | |
2654 | */ | |
2655 | void | |
2656 | shortform_dir_entry_check(xfs_mount_t *mp, | |
2657 | xfs_ino_t ino, | |
2658 | xfs_inode_t *ip, | |
2659 | int *ino_dirty, | |
2660 | dir_stack_t *stack, | |
2661 | ino_tree_node_t *current_irec, | |
64c54486 | 2662 | int current_ino_offset, |
33165ec3 | 2663 | dir_hash_tab_t *hashtab) |
2bd0ea18 NS |
2664 | { |
2665 | xfs_ino_t lino; | |
2666 | xfs_ino_t parent; | |
2667 | xfs_dir_shortform_t *sf; | |
2668 | xfs_dir_sf_entry_t *sf_entry, *next_sfe, *tmp_sfe; | |
2669 | xfs_ifork_t *ifp; | |
2670 | ino_tree_node_t *irec; | |
2671 | int max_size; | |
2672 | int ino_offset; | |
2673 | int i; | |
2674 | int junkit; | |
2675 | int tmp_len; | |
2676 | int tmp_elen; | |
2677 | int bad_sfnamelen; | |
2678 | int namelen; | |
2679 | int bytes_deleted; | |
2680 | char fname[MAXNAMELEN + 1]; | |
2681 | ||
2682 | ifp = &ip->i_df; | |
2683 | sf = (xfs_dir_shortform_t *) ifp->if_u1.if_data; | |
2684 | *ino_dirty = 0; | |
2685 | bytes_deleted = 0; | |
2686 | ||
2687 | max_size = ifp->if_bytes; | |
2688 | ASSERT(ip->i_d.di_size <= ifp->if_bytes); | |
2689 | ||
2690 | /* | |
2691 | * no '.' entry in shortform dirs, just bump up ref count by 1 | |
2692 | * '..' was already (or will be) accounted for and checked when | |
2693 | * the directory is reached or will be taken care of when the | |
2694 | * directory is moved to orphanage. | |
2695 | */ | |
2696 | add_inode_ref(current_irec, current_ino_offset); | |
2697 | ||
2698 | /* | |
2699 | * now run through entries, stop at first bad entry, don't need | |
2700 | * to skip over '..' since that's encoded in its own field and | |
2701 | * no need to worry about '.' since it doesn't exist. | |
2702 | */ | |
2703 | sf_entry = next_sfe = &sf->list[0]; | |
dfc130f3 | 2704 | if (sf == NULL) { |
2bd0ea18 | 2705 | junkit = 1; |
507f4e33 NS |
2706 | do_warn(_("shortform dir inode %llu has null data entries \n"), |
2707 | ino); | |
2bd0ea18 NS |
2708 | |
2709 | } | |
2710 | else { | |
2711 | for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT) && max_size > | |
2712 | (__psint_t)next_sfe - (__psint_t)sf; | |
2713 | sf_entry = next_sfe, i++) { | |
2714 | junkit = 0; | |
2715 | bad_sfnamelen = 0; | |
2716 | tmp_sfe = NULL; | |
2717 | ||
46eca962 | 2718 | XFS_DIR_SF_GET_DIRINO(&sf_entry->inumber, &lino); |
2bd0ea18 NS |
2719 | |
2720 | namelen = sf_entry->namelen; | |
2721 | ||
2722 | ASSERT(no_modify || namelen > 0); | |
2723 | ||
2724 | if (no_modify && namelen == 0) { | |
2725 | /* | |
2726 | * if we're really lucky, this is | |
2727 | * the last entry in which case we | |
2728 | * can use the dir size to set the | |
2729 | * namelen value. otherwise, forget | |
2730 | * it because we're not going to be | |
2731 | * able to find the next entry. | |
2732 | */ | |
2733 | bad_sfnamelen = 1; | |
2734 | ||
2735 | if (i == INT_GET(sf->hdr.count, ARCH_CONVERT) - 1) { | |
2736 | namelen = ip->i_d.di_size - | |
2737 | ((__psint_t) &sf_entry->name[0] - | |
2738 | (__psint_t) sf); | |
2739 | } else { | |
2740 | /* | |
2741 | * don't process the rest of the directory, | |
2742 | * break out of processing looop | |
2743 | */ | |
2744 | break; | |
2745 | } | |
2746 | } else if (no_modify && (__psint_t) sf_entry - (__psint_t) sf + | |
2747 | + XFS_DIR_SF_ENTSIZE_BYENTRY(sf_entry) | |
2748 | > ip->i_d.di_size) { | |
2749 | bad_sfnamelen = 1; | |
2750 | ||
2751 | if (i == INT_GET(sf->hdr.count, ARCH_CONVERT) - 1) { | |
2752 | namelen = ip->i_d.di_size - | |
2753 | ((__psint_t) &sf_entry->name[0] - | |
2754 | (__psint_t) sf); | |
2755 | } else { | |
2756 | /* | |
2757 | * don't process the rest of the directory, | |
2758 | * break out of processing looop | |
2759 | */ | |
2760 | break; | |
2761 | } | |
2762 | } | |
2763 | ||
2764 | bcopy(sf_entry->name, fname, sf_entry->namelen); | |
2765 | fname[sf_entry->namelen] = '\0'; | |
2766 | ||
2767 | ASSERT(no_modify || lino != NULLFSINO); | |
2768 | ASSERT(no_modify || !verify_inum(mp, lino)); | |
2769 | ||
2770 | /* | |
2771 | * special case the "lost+found" entry if it's pointing | |
2772 | * to where we think lost+found should be. if that's | |
2773 | * the case, that's the one we created in phase 6. | |
2774 | * just skip it. no need to process it and its .. | |
2775 | * link is already accounted for. Also skip entries | |
2776 | * with bogus inode numbers if we're in no modify mode. | |
2777 | */ | |
2778 | ||
27527004 NS |
2779 | if ((lino == orphanage_ino && strcmp(fname, ORPHANAGE) == 0) |
2780 | || (no_modify && verify_inum(mp, lino))) { | |
2bd0ea18 NS |
2781 | next_sfe = (xfs_dir_sf_entry_t *) |
2782 | ((__psint_t) sf_entry + | |
2783 | XFS_DIR_SF_ENTSIZE_BYENTRY(sf_entry)); | |
2784 | continue; | |
2785 | } | |
2786 | ||
2787 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, lino), | |
2788 | XFS_INO_TO_AGINO(mp, lino)); | |
2789 | ||
2790 | if (irec == NULL && no_modify) { | |
2791 | do_warn( | |
507f4e33 | 2792 | _("entry \"%s\" in shortform dir %llu references non-existent ino %llu\n"), |
2bd0ea18 | 2793 | fname, ino, lino); |
507f4e33 | 2794 | do_warn(_("would junk entry\n")); |
2bd0ea18 NS |
2795 | continue; |
2796 | } | |
2797 | ||
2798 | ASSERT(irec != NULL); | |
2799 | ||
2800 | ino_offset = XFS_INO_TO_AGINO(mp, lino) - irec->ino_startnum; | |
33165ec3 | 2801 | |
2bd0ea18 NS |
2802 | /* |
2803 | * if it's a free inode, blow out the entry. | |
2804 | * by now, any inode that we think is free | |
2805 | * really is free. | |
2806 | */ | |
2807 | if (is_inode_free(irec, ino_offset)) { | |
2808 | /* | |
2809 | * don't complain if this entry points to the old | |
2810 | * and now-free lost+found inode | |
2811 | */ | |
2812 | if (verbose || no_modify || lino != old_orphanage_ino) | |
2813 | do_warn( | |
507f4e33 | 2814 | _("entry \"%s\" in shortform dir inode %llu points to free inode %llu\n"), |
2bd0ea18 NS |
2815 | fname, ino, lino); |
2816 | ||
2817 | if (!no_modify) { | |
2818 | junkit = 1; | |
2819 | } else { | |
507f4e33 | 2820 | do_warn(_("would junk entry \"%s\"\n"), |
2bd0ea18 NS |
2821 | fname); |
2822 | } | |
33165ec3 BN |
2823 | } else if (!dir_hash_add(hashtab, |
2824 | (xfs_dir2_dataptr_t)(sf_entry - &sf->list[0]), | |
2825 | lino, sf_entry->namelen, sf_entry->name)) { | |
64c54486 BN |
2826 | /* |
2827 | * check for duplicate names in directory. | |
2828 | */ | |
2829 | do_warn( | |
2830 | _("entry \"%s\" (ino %llu) in dir %llu is a duplicate name"), | |
2831 | fname, lino, ino); | |
2832 | if (!no_modify) { | |
2833 | junkit = 1; | |
2834 | if (verbose) | |
2835 | do_warn( | |
2836 | _(", marking entry to be junked\n")); | |
2837 | else | |
2838 | do_warn("\n"); | |
2839 | } else { | |
2840 | do_warn(_(", would junk entry\n")); | |
2841 | } | |
2bd0ea18 NS |
2842 | } else if (!inode_isadir(irec, ino_offset)) { |
2843 | /* | |
2844 | * check easy case first, regular inode, just bump | |
2845 | * the link count and continue | |
2846 | */ | |
2847 | add_inode_reached(irec, ino_offset); | |
2848 | ||
2849 | next_sfe = (xfs_dir_sf_entry_t *) | |
2850 | ((__psint_t) sf_entry + | |
2851 | XFS_DIR_SF_ENTSIZE_BYENTRY(sf_entry)); | |
2852 | continue; | |
2853 | } else { | |
2854 | parent = get_inode_parent(irec, ino_offset); | |
2855 | ||
2856 | /* | |
2857 | * bump up the link counts in parent and child. | |
2858 | * directory but if the link doesn't agree with | |
2859 | * the .. in the child, blow out the entry | |
2860 | */ | |
2861 | if (is_inode_reached(irec, ino_offset)) { | |
2862 | junkit = 1; | |
2863 | do_warn( | |
507f4e33 | 2864 | _("entry \"%s\" in dir %llu references already connected dir ino %llu,\n"), |
2bd0ea18 NS |
2865 | fname, ino, lino); |
2866 | } else if (parent == ino) { | |
2867 | add_inode_reached(irec, ino_offset); | |
2868 | add_inode_ref(current_irec, current_ino_offset); | |
2869 | ||
a1d54891 | 2870 | if (!do_prefetch && !is_inode_refchecked(lino, irec, |
2bd0ea18 NS |
2871 | ino_offset)) |
2872 | push_dir(stack, lino); | |
2873 | } else { | |
2874 | junkit = 1; | |
2875 | do_warn( | |
507f4e33 | 2876 | _("entry \"%s\" in dir %llu not consistent with .. value (%llu) in dir ino %llu,\n"), |
2bd0ea18 NS |
2877 | fname, ino, parent, lino); |
2878 | } | |
2879 | } | |
2880 | ||
2881 | if (junkit) { | |
2882 | if (!no_modify) { | |
2883 | tmp_elen = XFS_DIR_SF_ENTSIZE_BYENTRY(sf_entry); | |
2884 | tmp_sfe = (xfs_dir_sf_entry_t *) | |
2885 | ((__psint_t) sf_entry + tmp_elen); | |
2886 | tmp_len = max_size - ((__psint_t) tmp_sfe | |
2887 | - (__psint_t) sf); | |
2888 | max_size -= tmp_elen; | |
2889 | bytes_deleted += tmp_elen; | |
2890 | ||
2891 | memmove(sf_entry, tmp_sfe, tmp_len); | |
2892 | ||
2893 | INT_MOD(sf->hdr.count, ARCH_CONVERT, -1); | |
2894 | bzero((void *) ((__psint_t) sf_entry + tmp_len), | |
2895 | tmp_elen); | |
2896 | ||
2897 | /* | |
2898 | * set the tmp value to the current | |
2899 | * pointer so we'll process the entry | |
2900 | * we just moved up | |
2901 | */ | |
2902 | tmp_sfe = sf_entry; | |
2903 | ||
2904 | /* | |
2905 | * WARNING: drop the index i by one | |
2906 | * so it matches the decremented count for | |
2907 | * accurate comparisons in the loop test | |
2908 | */ | |
2909 | i--; | |
2910 | ||
2911 | *ino_dirty = 1; | |
2912 | ||
2913 | if (verbose || lino != old_orphanage_ino) | |
2914 | do_warn( | |
507f4e33 | 2915 | _("junking entry \"%s\" in directory inode %llu\n"), |
2bd0ea18 NS |
2916 | fname, lino); |
2917 | } else { | |
507f4e33 | 2918 | do_warn(_("would junk entry \"%s\"\n"), fname); |
2bd0ea18 NS |
2919 | } |
2920 | } | |
2921 | ||
2922 | /* | |
2923 | * go onto next entry unless we've just junked an | |
2924 | * entry in which the current entry pointer points | |
2925 | * to an unprocessed entry. have to take into entries | |
2926 | * with bad namelen into account in no modify mode since we | |
2927 | * calculate size based on next_sfe. | |
2928 | */ | |
2929 | ASSERT(no_modify || bad_sfnamelen == 0); | |
2930 | ||
2931 | next_sfe = (tmp_sfe == NULL) | |
2932 | ? (xfs_dir_sf_entry_t *) ((__psint_t) sf_entry | |
2933 | + ((!bad_sfnamelen) | |
2934 | ? XFS_DIR_SF_ENTSIZE_BYENTRY(sf_entry) | |
2935 | : sizeof(xfs_dir_sf_entry_t) - 1 | |
2936 | + namelen)) | |
2937 | : tmp_sfe; | |
2938 | } | |
2939 | } | |
2940 | ||
2941 | /* | |
2942 | * sync up sizes if required | |
2943 | */ | |
2944 | if (*ino_dirty) { | |
2945 | ASSERT(bytes_deleted > 0); | |
2946 | ASSERT(!no_modify); | |
2947 | libxfs_idata_realloc(ip, -bytes_deleted, XFS_DATA_FORK); | |
2948 | ip->i_d.di_size -= bytes_deleted; | |
2949 | } | |
2950 | ||
2951 | if (ip->i_d.di_size != ip->i_df.if_bytes) { | |
2952 | ASSERT(ip->i_df.if_bytes == (xfs_fsize_t) | |
2953 | ((__psint_t) next_sfe - (__psint_t) sf)); | |
2954 | ip->i_d.di_size = (xfs_fsize_t) | |
2955 | ((__psint_t) next_sfe - (__psint_t) sf); | |
2956 | do_warn( | |
507f4e33 | 2957 | _("setting size to %lld bytes to reflect junked entries\n"), |
2bd0ea18 NS |
2958 | ip->i_d.di_size); |
2959 | *ino_dirty = 1; | |
2960 | } | |
2961 | } | |
2962 | ||
2963 | /* ARGSUSED */ | |
2964 | void | |
2965 | prune_sf_dir_entry(xfs_mount_t *mp, xfs_ino_t ino, xfs_inode_t *ip) | |
2966 | { | |
2967 | /* REFERENCED */ | |
2968 | xfs_ino_t lino; | |
2969 | xfs_dir_shortform_t *sf; | |
2970 | xfs_dir_sf_entry_t *sf_entry, *next_sfe, *tmp_sfe; | |
2971 | xfs_ifork_t *ifp; | |
2972 | int max_size; | |
2973 | int i; | |
2974 | int tmp_len; | |
2975 | int tmp_elen; | |
2976 | int bytes_deleted; | |
2977 | char fname[MAXNAMELEN + 1]; | |
2978 | ||
2979 | ifp = &ip->i_df; | |
2980 | sf = (xfs_dir_shortform_t *) ifp->if_u1.if_data; | |
2981 | bytes_deleted = 0; | |
2982 | ||
2983 | max_size = ifp->if_bytes; | |
2984 | ASSERT(ip->i_d.di_size <= ifp->if_bytes); | |
2985 | ||
2986 | /* | |
2987 | * now run through entries and delete every bad entry | |
2988 | */ | |
2989 | sf_entry = next_sfe = &sf->list[0]; | |
2990 | ||
2991 | for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT) && max_size > | |
2992 | (__psint_t)next_sfe - (__psint_t)sf; | |
2993 | sf_entry = next_sfe, i++) { | |
2994 | tmp_sfe = NULL; | |
2995 | ||
46eca962 | 2996 | XFS_DIR_SF_GET_DIRINO(&sf_entry->inumber, &lino); |
2bd0ea18 NS |
2997 | |
2998 | bcopy(sf_entry->name, fname, sf_entry->namelen); | |
2999 | fname[sf_entry->namelen] = '\0'; | |
3000 | ||
3001 | if (sf_entry->name[0] == '/') { | |
3002 | if (!no_modify) { | |
3003 | tmp_elen = XFS_DIR_SF_ENTSIZE_BYENTRY(sf_entry); | |
3004 | tmp_sfe = (xfs_dir_sf_entry_t *) | |
3005 | ((__psint_t) sf_entry + tmp_elen); | |
3006 | tmp_len = max_size - ((__psint_t) tmp_sfe | |
3007 | - (__psint_t) sf); | |
3008 | max_size -= tmp_elen; | |
3009 | bytes_deleted += tmp_elen; | |
3010 | ||
3011 | memmove(sf_entry, tmp_sfe, tmp_len); | |
3012 | ||
3013 | INT_MOD(sf->hdr.count, ARCH_CONVERT, -1); | |
3014 | bzero((void *) ((__psint_t) sf_entry + tmp_len), | |
3015 | tmp_elen); | |
3016 | ||
3017 | /* | |
3018 | * set the tmp value to the current | |
3019 | * pointer so we'll process the entry | |
3020 | * we just moved up | |
3021 | */ | |
3022 | tmp_sfe = sf_entry; | |
3023 | ||
3024 | /* | |
3025 | * WARNING: drop the index i by one | |
3026 | * so it matches the decremented count for | |
3027 | * accurate comparisons in the loop test | |
3028 | */ | |
3029 | i--; | |
3030 | } | |
3031 | } | |
3032 | next_sfe = (tmp_sfe == NULL) | |
3033 | ? (xfs_dir_sf_entry_t *) ((__psint_t) sf_entry + | |
3034 | XFS_DIR_SF_ENTSIZE_BYENTRY(sf_entry)) | |
3035 | : tmp_sfe; | |
3036 | } | |
3037 | ||
3038 | /* | |
3039 | * sync up sizes if required | |
3040 | */ | |
3041 | if (bytes_deleted > 0) { | |
3042 | libxfs_idata_realloc(ip, -bytes_deleted, XFS_DATA_FORK); | |
3043 | ip->i_d.di_size -= bytes_deleted; | |
3044 | } | |
3045 | ||
3046 | if (ip->i_d.di_size != ip->i_df.if_bytes) { | |
3047 | ASSERT(ip->i_df.if_bytes == (xfs_fsize_t) | |
3048 | ((__psint_t) next_sfe - (__psint_t) sf)); | |
3049 | ip->i_d.di_size = (xfs_fsize_t) | |
3050 | ((__psint_t) next_sfe - (__psint_t) sf); | |
3051 | do_warn( | |
507f4e33 | 3052 | _("setting size to %lld bytes to reflect junked entries\n"), |
2bd0ea18 NS |
3053 | ip->i_d.di_size); |
3054 | } | |
3055 | } | |
3056 | ||
3057 | /* | |
3058 | * shortform directory v2 processing routines -- entry verification and | |
3059 | * bad entry deletion (pruning). | |
3060 | */ | |
3061 | void | |
3062 | shortform_dir2_entry_check(xfs_mount_t *mp, | |
3063 | xfs_ino_t ino, | |
3064 | xfs_inode_t *ip, | |
3065 | int *ino_dirty, | |
3066 | dir_stack_t *stack, | |
3067 | ino_tree_node_t *current_irec, | |
64c54486 | 3068 | int current_ino_offset, |
33165ec3 | 3069 | dir_hash_tab_t *hashtab) |
2bd0ea18 NS |
3070 | { |
3071 | xfs_ino_t lino; | |
3072 | xfs_ino_t parent; | |
3073 | xfs_dir2_sf_t *sfp; | |
3074 | xfs_dir2_sf_entry_t *sfep, *next_sfep, *tmp_sfep; | |
3075 | xfs_ifork_t *ifp; | |
3076 | ino_tree_node_t *irec; | |
3077 | int max_size; | |
3078 | int ino_offset; | |
3079 | int i; | |
3080 | int junkit; | |
3081 | int tmp_len; | |
3082 | int tmp_elen; | |
3083 | int bad_sfnamelen; | |
3084 | int namelen; | |
3085 | int bytes_deleted; | |
3086 | char fname[MAXNAMELEN + 1]; | |
3087 | int i8; | |
3088 | ||
3089 | ifp = &ip->i_df; | |
3090 | sfp = (xfs_dir2_sf_t *) ifp->if_u1.if_data; | |
3091 | *ino_dirty = 0; | |
e55d768a | 3092 | bytes_deleted = 0; |
2bd0ea18 NS |
3093 | |
3094 | max_size = ifp->if_bytes; | |
3095 | ASSERT(ip->i_d.di_size <= ifp->if_bytes); | |
3096 | ||
3097 | /* | |
3098 | * no '.' entry in shortform dirs, just bump up ref count by 1 | |
3099 | * '..' was already (or will be) accounted for and checked when | |
3100 | * the directory is reached or will be taken care of when the | |
3101 | * directory is moved to orphanage. | |
3102 | */ | |
3103 | add_inode_ref(current_irec, current_ino_offset); | |
3104 | ||
e55d768a NS |
3105 | /* |
3106 | * Initialise i8 counter -- the parent inode number counts as well. | |
3107 | */ | |
46eca962 | 3108 | i8 = (XFS_DIR2_SF_GET_INUMBER(sfp, &sfp->hdr.parent) > XFS_DIR2_MAX_SHORT_INUM); |
e55d768a | 3109 | |
2bd0ea18 NS |
3110 | /* |
3111 | * now run through entries, stop at first bad entry, don't need | |
3112 | * to skip over '..' since that's encoded in its own field and | |
3113 | * no need to worry about '.' since it doesn't exist. | |
3114 | */ | |
3115 | sfep = next_sfep = XFS_DIR2_SF_FIRSTENTRY(sfp); | |
3116 | ||
3117 | for (i = 0; i < INT_GET(sfp->hdr.count, ARCH_CONVERT) && max_size > | |
3118 | (__psint_t)next_sfep - (__psint_t)sfp; | |
3119 | sfep = next_sfep, i++) { | |
3120 | junkit = 0; | |
3121 | bad_sfnamelen = 0; | |
3122 | tmp_sfep = NULL; | |
3123 | ||
46eca962 | 3124 | lino = XFS_DIR2_SF_GET_INUMBER(sfp, XFS_DIR2_SF_INUMBERP(sfep)); |
2bd0ea18 NS |
3125 | |
3126 | namelen = sfep->namelen; | |
3127 | ||
3128 | ASSERT(no_modify || namelen > 0); | |
3129 | ||
3130 | if (no_modify && namelen == 0) { | |
3131 | /* | |
3132 | * if we're really lucky, this is | |
3133 | * the last entry in which case we | |
3134 | * can use the dir size to set the | |
3135 | * namelen value. otherwise, forget | |
3136 | * it because we're not going to be | |
3137 | * able to find the next entry. | |
3138 | */ | |
3139 | bad_sfnamelen = 1; | |
3140 | ||
3141 | if (i == INT_GET(sfp->hdr.count, ARCH_CONVERT) - 1) { | |
3142 | namelen = ip->i_d.di_size - | |
3143 | ((__psint_t) &sfep->name[0] - | |
3144 | (__psint_t) sfp); | |
3145 | } else { | |
3146 | /* | |
3147 | * don't process the rest of the directory, | |
3148 | * break out of processing loop | |
3149 | */ | |
3150 | break; | |
3151 | } | |
3152 | } else if (no_modify && (__psint_t) sfep - (__psint_t) sfp + | |
3153 | + XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp, sfep) | |
3154 | > ip->i_d.di_size) { | |
3155 | bad_sfnamelen = 1; | |
3156 | ||
3157 | if (i == INT_GET(sfp->hdr.count, ARCH_CONVERT) - 1) { | |
3158 | namelen = ip->i_d.di_size - | |
3159 | ((__psint_t) &sfep->name[0] - | |
3160 | (__psint_t) sfp); | |
3161 | } else { | |
3162 | /* | |
3163 | * don't process the rest of the directory, | |
3164 | * break out of processing loop | |
3165 | */ | |
3166 | break; | |
3167 | } | |
3168 | } | |
3169 | ||
3170 | bcopy(sfep->name, fname, sfep->namelen); | |
3171 | fname[sfep->namelen] = '\0'; | |
3172 | ||
3173 | ASSERT(no_modify || (lino != NULLFSINO && lino != 0)); | |
3174 | ASSERT(no_modify || !verify_inum(mp, lino)); | |
3175 | ||
3176 | /* | |
3177 | * special case the "lost+found" entry if it's pointing | |
3178 | * to where we think lost+found should be. if that's | |
3179 | * the case, that's the one we created in phase 6. | |
3180 | * just skip it. no need to process it and its .. | |
e55d768a | 3181 | * link is already accounted for. |
2bd0ea18 NS |
3182 | */ |
3183 | ||
e55d768a NS |
3184 | if (lino == orphanage_ino && strcmp(fname, ORPHANAGE) == 0) { |
3185 | if (lino > XFS_DIR2_MAX_SHORT_INUM) | |
3186 | i8++; | |
3187 | next_sfep = (xfs_dir2_sf_entry_t *) | |
3188 | ((__psint_t) sfep + | |
3189 | XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp, sfep)); | |
3190 | continue; | |
3191 | } | |
3192 | ||
3193 | /* | |
3194 | * Also skip entries with bogus inode numbers if we're | |
3195 | * in no modify mode. | |
3196 | */ | |
3197 | ||
3198 | if (no_modify && verify_inum(mp, lino)) { | |
2bd0ea18 NS |
3199 | next_sfep = (xfs_dir2_sf_entry_t *) |
3200 | ((__psint_t) sfep + | |
3201 | XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp, sfep)); | |
3202 | continue; | |
3203 | } | |
3204 | ||
3205 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, lino), | |
3206 | XFS_INO_TO_AGINO(mp, lino)); | |
3207 | ||
3208 | if (irec == NULL && no_modify) { | |
507f4e33 NS |
3209 | do_warn(_("entry \"%s\" in shortform directory %llu " |
3210 | "references non-existent inode %llu\n"), | |
2bd0ea18 | 3211 | fname, ino, lino); |
507f4e33 | 3212 | do_warn(_("would junk entry\n")); |
2bd0ea18 NS |
3213 | continue; |
3214 | } | |
3215 | ||
3216 | ASSERT(irec != NULL); | |
3217 | ||
3218 | ino_offset = XFS_INO_TO_AGINO(mp, lino) - irec->ino_startnum; | |
3219 | ||
3220 | /* | |
3221 | * if it's a free inode, blow out the entry. | |
3222 | * by now, any inode that we think is free | |
3223 | * really is free. | |
3224 | */ | |
3225 | if (is_inode_free(irec, ino_offset)) { | |
3226 | /* | |
3227 | * don't complain if this entry points to the old | |
3228 | * and now-free lost+found inode | |
3229 | */ | |
3230 | if (verbose || no_modify || lino != old_orphanage_ino) | |
507f4e33 NS |
3231 | do_warn(_("entry \"%s\" in shortform directory " |
3232 | "inode %llu points to free inode " | |
3233 | "%llu\n"), | |
2bd0ea18 NS |
3234 | fname, ino, lino); |
3235 | ||
3236 | if (!no_modify) { | |
3237 | junkit = 1; | |
3238 | } else { | |
507f4e33 | 3239 | do_warn(_("would junk entry \"%s\"\n"), |
2bd0ea18 NS |
3240 | fname); |
3241 | } | |
33165ec3 BN |
3242 | } else if (!dir_hash_add(hashtab, (xfs_dir2_dataptr_t) |
3243 | (sfep - XFS_DIR2_SF_FIRSTENTRY(sfp)), | |
3244 | lino, sfep->namelen, sfep->name)) { | |
64c54486 BN |
3245 | /* |
3246 | * check for duplicate names in directory. | |
3247 | */ | |
3248 | do_warn( | |
3249 | _("entry \"%s\" (ino %llu) in dir %llu is a duplicate name"), | |
3250 | fname, lino, ino); | |
3251 | if (!no_modify) { | |
3252 | junkit = 1; | |
3253 | if (verbose) | |
3254 | do_warn( | |
3255 | _(", marking entry to be junked\n")); | |
3256 | else | |
3257 | do_warn("\n"); | |
3258 | } else { | |
3259 | do_warn(_(", would junk entry\n")); | |
3260 | } | |
2bd0ea18 NS |
3261 | } else if (!inode_isadir(irec, ino_offset)) { |
3262 | /* | |
3263 | * check easy case first, regular inode, just bump | |
e55d768a | 3264 | * the link count |
2bd0ea18 NS |
3265 | */ |
3266 | add_inode_reached(irec, ino_offset); | |
2bd0ea18 NS |
3267 | } else { |
3268 | parent = get_inode_parent(irec, ino_offset); | |
3269 | ||
3270 | /* | |
3271 | * bump up the link counts in parent and child. | |
3272 | * directory but if the link doesn't agree with | |
3273 | * the .. in the child, blow out the entry | |
3274 | */ | |
3275 | if (is_inode_reached(irec, ino_offset)) { | |
3276 | junkit = 1; | |
507f4e33 NS |
3277 | do_warn(_("entry \"%s\" in directory inode %llu" |
3278 | " references already connected inode " | |
3279 | "%llu,\n"), | |
2bd0ea18 NS |
3280 | fname, ino, lino); |
3281 | } else if (parent == ino) { | |
3282 | add_inode_reached(irec, ino_offset); | |
3283 | add_inode_ref(current_irec, current_ino_offset); | |
3284 | ||
a1d54891 | 3285 | if (!do_prefetch && !is_inode_refchecked(lino, irec, |
2bd0ea18 NS |
3286 | ino_offset)) |
3287 | push_dir(stack, lino); | |
3288 | } else { | |
3289 | junkit = 1; | |
507f4e33 NS |
3290 | do_warn(_("entry \"%s\" in directory inode %llu" |
3291 | " not consistent with .. value (%llu)" | |
3292 | " in inode %llu,\n"), | |
2bd0ea18 NS |
3293 | fname, ino, parent, lino); |
3294 | } | |
3295 | } | |
3296 | ||
3297 | if (junkit) { | |
3298 | if (!no_modify) { | |
3299 | tmp_elen = XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp, sfep); | |
3300 | tmp_sfep = (xfs_dir2_sf_entry_t *) | |
3301 | ((__psint_t) sfep + tmp_elen); | |
3302 | tmp_len = max_size - ((__psint_t) tmp_sfep | |
3303 | - (__psint_t) sfp); | |
3304 | max_size -= tmp_elen; | |
3305 | bytes_deleted += tmp_elen; | |
3306 | ||
3307 | memmove(sfep, tmp_sfep, tmp_len); | |
3308 | ||
3309 | INT_MOD(sfp->hdr.count, ARCH_CONVERT, -1); | |
3310 | bzero((void *) ((__psint_t) sfep + tmp_len), | |
3311 | tmp_elen); | |
3312 | ||
3313 | /* | |
3314 | * set the tmp value to the current | |
3315 | * pointer so we'll process the entry | |
3316 | * we just moved up | |
3317 | */ | |
3318 | tmp_sfep = sfep; | |
3319 | ||
3320 | /* | |
3321 | * WARNING: drop the index i by one | |
3322 | * so it matches the decremented count for | |
3323 | * accurate comparisons in the loop test | |
3324 | */ | |
3325 | i--; | |
3326 | ||
3327 | *ino_dirty = 1; | |
3328 | ||
3329 | if (verbose || lino != old_orphanage_ino) | |
507f4e33 NS |
3330 | do_warn(_("junking entry \"%s\" in " |
3331 | "directory inode %llu\n"), | |
2bd0ea18 NS |
3332 | fname, lino); |
3333 | } else { | |
507f4e33 | 3334 | do_warn(_("would junk entry \"%s\"\n"), fname); |
2bd0ea18 NS |
3335 | } |
3336 | } else if (lino > XFS_DIR2_MAX_SHORT_INUM) | |
3337 | i8++; | |
3338 | ||
3339 | /* | |
3340 | * go onto next entry unless we've just junked an | |
3341 | * entry in which the current entry pointer points | |
3342 | * to an unprocessed entry. have to take into entries | |
3343 | * with bad namelen into account in no modify mode since we | |
3344 | * calculate size based on next_sfep. | |
3345 | */ | |
3346 | ASSERT(no_modify || bad_sfnamelen == 0); | |
3347 | ||
3348 | next_sfep = (tmp_sfep == NULL) | |
3349 | ? (xfs_dir2_sf_entry_t *) ((__psint_t) sfep | |
3350 | + ((!bad_sfnamelen) | |
3351 | ? XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp, sfep) | |
3352 | : XFS_DIR2_SF_ENTSIZE_BYNAME(sfp, namelen))) | |
3353 | : tmp_sfep; | |
3354 | } | |
3355 | ||
3356 | if (sfp->hdr.i8count != i8) { | |
3357 | if (no_modify) { | |
507f4e33 | 3358 | do_warn(_("would fix i8count in inode %llu\n"), ino); |
2bd0ea18 NS |
3359 | } else { |
3360 | if (i8 == 0) { | |
3361 | tmp_sfep = next_sfep; | |
3362 | process_sf_dir2_fixi8(sfp, &tmp_sfep); | |
3363 | bytes_deleted += | |
3364 | (__psint_t)next_sfep - | |
3365 | (__psint_t)tmp_sfep; | |
3366 | next_sfep = tmp_sfep; | |
3367 | } else | |
3368 | sfp->hdr.i8count = i8; | |
3369 | *ino_dirty = 1; | |
507f4e33 | 3370 | do_warn(_("fixing i8count in inode %llu\n"), ino); |
2bd0ea18 NS |
3371 | } |
3372 | } | |
3373 | ||
3374 | /* | |
3375 | * sync up sizes if required | |
3376 | */ | |
3377 | if (*ino_dirty) { | |
3378 | ASSERT(bytes_deleted > 0); | |
3379 | ASSERT(!no_modify); | |
3380 | libxfs_idata_realloc(ip, -bytes_deleted, XFS_DATA_FORK); | |
3381 | ip->i_d.di_size -= bytes_deleted; | |
3382 | } | |
3383 | ||
3384 | if (ip->i_d.di_size != ip->i_df.if_bytes) { | |
3385 | ASSERT(ip->i_df.if_bytes == (xfs_fsize_t) | |
3386 | ((__psint_t) next_sfep - (__psint_t) sfp)); | |
3387 | ip->i_d.di_size = (xfs_fsize_t) | |
3388 | ((__psint_t) next_sfep - (__psint_t) sfp); | |
507f4e33 NS |
3389 | do_warn(_("setting size to %lld bytes to reflect junked " |
3390 | "entries\n"), | |
2bd0ea18 NS |
3391 | ip->i_d.di_size); |
3392 | *ino_dirty = 1; | |
3393 | } | |
3394 | } | |
3395 | ||
3396 | /* | |
3397 | * processes all directories reachable via the inodes on the stack | |
3398 | * returns 0 if things are good, 1 if there's a problem | |
3399 | */ | |
3400 | void | |
3401 | process_dirstack(xfs_mount_t *mp, dir_stack_t *stack) | |
3402 | { | |
3403 | xfs_bmap_free_t flist; | |
3404 | xfs_fsblock_t first; | |
3405 | xfs_ino_t ino; | |
3406 | xfs_inode_t *ip; | |
3407 | xfs_trans_t *tp; | |
3408 | xfs_dahash_t hashval; | |
3409 | ino_tree_node_t *irec; | |
33165ec3 | 3410 | dir_hash_tab_t *hashtab; |
2bd0ea18 NS |
3411 | int ino_offset, need_dot, committed; |
3412 | int dirty, num_illegal, error, nres; | |
3413 | ||
3414 | /* | |
3415 | * pull directory inode # off directory stack | |
3416 | * | |
3417 | * open up directory inode, check all entries, | |
3418 | * then call prune_dir_entries to remove all | |
3419 | * remaining illegal directory entries. | |
3420 | */ | |
3421 | ||
3422 | while ((ino = pop_dir(stack)) != NULLFSINO) { | |
3423 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, ino), | |
3424 | XFS_INO_TO_AGINO(mp, ino)); | |
3425 | ASSERT(irec != NULL); | |
3426 | ||
3427 | ino_offset = XFS_INO_TO_AGINO(mp, ino) - irec->ino_startnum; | |
3428 | ||
3429 | ASSERT(!is_inode_refchecked(ino, irec, ino_offset)); | |
3430 | ||
27527004 | 3431 | if ((error = libxfs_iget(mp, NULL, ino, 0, &ip, 0))) { |
2bd0ea18 | 3432 | if (!no_modify) |
507f4e33 NS |
3433 | do_error( |
3434 | _("couldn't map inode %llu, err = %d\n"), | |
2bd0ea18 NS |
3435 | ino, error); |
3436 | else { | |
507f4e33 NS |
3437 | do_warn( |
3438 | _("couldn't map inode %llu, err = %d\n"), | |
2bd0ea18 NS |
3439 | ino, error); |
3440 | /* | |
3441 | * see below for what we're doing if this | |
3442 | * is root. Why do we need to do this here? | |
3443 | * to ensure that the root doesn't show up | |
3444 | * as being disconnected in the no_modify case. | |
3445 | */ | |
3446 | if (mp->m_sb.sb_rootino == ino) { | |
3447 | add_inode_reached(irec, 0); | |
3448 | add_inode_ref(irec, 0); | |
3449 | } | |
3450 | } | |
3451 | ||
3452 | add_inode_refchecked(ino, irec, 0); | |
3453 | continue; | |
3454 | } | |
3455 | ||
3456 | need_dot = dirty = num_illegal = 0; | |
3457 | ||
3458 | if (mp->m_sb.sb_rootino == ino) { | |
3459 | /* | |
3460 | * mark root inode reached and bump up | |
3461 | * link count for root inode to account | |
3462 | * for '..' entry since the root inode is | |
3463 | * never reached by a parent. we know | |
3464 | * that root's '..' is always good -- | |
3465 | * guaranteed by phase 3 and/or below. | |
3466 | */ | |
3467 | add_inode_reached(irec, ino_offset); | |
3468 | /* | |
3469 | * account for link for the orphanage | |
3470 | * "lost+found". if we're running in | |
3471 | * modify mode and it already existed, | |
3472 | * we deleted it so it's '..' reference | |
3473 | * never got counted. so add it here if | |
3474 | * we're going to create lost+found. | |
3475 | * | |
3476 | * if we're running in no_modify mode, | |
3477 | * we never deleted lost+found and we're | |
3478 | * not going to create it so do nothing. | |
3479 | * | |
3480 | * either way, the counts will match when | |
3481 | * we look at the root inode's nlinks | |
3482 | * field and compare that to our incore | |
3483 | * count in phase 7. | |
3484 | */ | |
3485 | if (!no_modify) | |
3486 | add_inode_ref(irec, ino_offset); | |
3487 | } | |
3488 | ||
3489 | add_inode_refchecked(ino, irec, ino_offset); | |
3490 | ||
33165ec3 | 3491 | hashtab = dir_hash_init(ip->i_d.di_size); |
64c54486 | 3492 | |
2bd0ea18 NS |
3493 | /* |
3494 | * look for bogus entries | |
3495 | */ | |
3496 | switch (ip->i_d.di_format) { | |
3497 | case XFS_DINODE_FMT_EXTENTS: | |
3498 | case XFS_DINODE_FMT_BTREE: | |
3499 | /* | |
3500 | * also check for missing '.' in longform dirs. | |
3501 | * missing .. entries are added if required when | |
3502 | * the directory is connected to lost+found. but | |
3503 | * we need to create '.' entries here. | |
3504 | */ | |
3505 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
3506 | longform_dir2_entry_check(mp, ino, ip, | |
3507 | &num_illegal, &need_dot, | |
3508 | stack, irec, | |
64c54486 | 3509 | ino_offset, |
33165ec3 | 3510 | hashtab); |
2bd0ea18 NS |
3511 | else |
3512 | longform_dir_entry_check(mp, ino, ip, | |
3513 | &num_illegal, &need_dot, | |
3514 | stack, irec, | |
64c54486 | 3515 | ino_offset, |
33165ec3 | 3516 | hashtab); |
2bd0ea18 NS |
3517 | break; |
3518 | case XFS_DINODE_FMT_LOCAL: | |
3519 | tp = libxfs_trans_alloc(mp, 0); | |
3520 | /* | |
3521 | * using the remove reservation is overkill | |
3522 | * since at most we'll only need to log the | |
3523 | * inode but it's easier than wedging a | |
3524 | * new define in ourselves. | |
3525 | */ | |
3526 | nres = no_modify ? 0 : XFS_REMOVE_SPACE_RES(mp); | |
3527 | error = libxfs_trans_reserve(tp, nres, | |
3528 | XFS_REMOVE_LOG_RES(mp), 0, | |
3529 | XFS_TRANS_PERM_LOG_RES, | |
3530 | XFS_REMOVE_LOG_COUNT); | |
3531 | if (error) | |
3532 | res_failed(error); | |
3533 | ||
3534 | libxfs_trans_ijoin(tp, ip, 0); | |
3535 | libxfs_trans_ihold(tp, ip); | |
3536 | ||
3537 | if (XFS_SB_VERSION_HASDIRV2(&mp->m_sb)) | |
3538 | shortform_dir2_entry_check(mp, ino, ip, &dirty, | |
3539 | stack, irec, | |
64c54486 | 3540 | ino_offset, |
33165ec3 | 3541 | hashtab); |
2bd0ea18 NS |
3542 | else |
3543 | shortform_dir_entry_check(mp, ino, ip, &dirty, | |
3544 | stack, irec, | |
64c54486 | 3545 | ino_offset, |
33165ec3 | 3546 | hashtab); |
2bd0ea18 | 3547 | |
27527004 | 3548 | ASSERT(dirty == 0 || (dirty && !no_modify)); |
2bd0ea18 NS |
3549 | if (dirty) { |
3550 | libxfs_trans_log_inode(tp, ip, | |
3551 | XFS_ILOG_CORE | XFS_ILOG_DDATA); | |
3552 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES | |
3553 | |XFS_TRANS_SYNC, 0); | |
3554 | } else { | |
3555 | libxfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES); | |
3556 | } | |
3557 | break; | |
3558 | default: | |
3559 | break; | |
3560 | } | |
33165ec3 | 3561 | dir_hash_done(hashtab); |
2bd0ea18 NS |
3562 | |
3563 | hashval = 0; | |
3564 | ||
3565 | if (!no_modify && !orphanage_entered && | |
3566 | ino == mp->m_sb.sb_rootino) { | |
507f4e33 | 3567 | do_warn(_("re-entering %s into root directory\n"), |
2bd0ea18 NS |
3568 | ORPHANAGE); |
3569 | tp = libxfs_trans_alloc(mp, 0); | |
3570 | nres = XFS_MKDIR_SPACE_RES(mp, strlen(ORPHANAGE)); | |
3571 | error = libxfs_trans_reserve(tp, nres, | |
3572 | XFS_MKDIR_LOG_RES(mp), 0, | |
3573 | XFS_TRANS_PERM_LOG_RES, | |
3574 | XFS_MKDIR_LOG_COUNT); | |
3575 | if (error) | |
3576 | res_failed(error); | |
3577 | libxfs_trans_ijoin(tp, ip, 0); | |
3578 | libxfs_trans_ihold(tp, ip); | |
3579 | XFS_BMAP_INIT(&flist, &first); | |
27527004 | 3580 | if ((error = dir_createname(mp, tp, ip, ORPHANAGE, |
2bd0ea18 NS |
3581 | strlen(ORPHANAGE), |
3582 | orphanage_ino, &first, &flist, | |
27527004 | 3583 | nres))) |
507f4e33 NS |
3584 | do_error(_("can't make %s entry in root inode " |
3585 | "%llu, createname error %d\n"), | |
2bd0ea18 NS |
3586 | ORPHANAGE, ino, error); |
3587 | libxfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
3588 | error = libxfs_bmap_finish(&tp, &flist, first, &committed); | |
3589 | ASSERT(error == 0); | |
3590 | libxfs_trans_commit(tp, | |
3591 | XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_SYNC, 0); | |
3592 | orphanage_entered = 1; | |
3593 | } | |
3594 | ||
3595 | /* | |
3596 | * if we have to create a .. for /, do it now *before* | |
3597 | * we delete the bogus entries, otherwise the directory | |
3598 | * could transform into a shortform dir which would | |
3599 | * probably cause the simulation to choke. Even | |
3600 | * if the illegal entries get shifted around, it's ok | |
3601 | * because the entries are structurally intact and in | |
3602 | * in hash-value order so the simulation won't get confused | |
3603 | * if it has to move them around. | |
3604 | */ | |
3605 | if (!no_modify && need_root_dotdot && | |
3606 | ino == mp->m_sb.sb_rootino) { | |
3607 | ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_LOCAL); | |
3608 | ||
507f4e33 | 3609 | do_warn(_("recreating root directory .. entry\n")); |
2bd0ea18 NS |
3610 | |
3611 | tp = libxfs_trans_alloc(mp, 0); | |
3612 | ASSERT(tp != NULL); | |
3613 | ||
3614 | nres = XFS_MKDIR_SPACE_RES(mp, 2); | |
3615 | error = libxfs_trans_reserve(tp, nres, | |
3616 | XFS_MKDIR_LOG_RES(mp), | |
3617 | 0, | |
3618 | XFS_TRANS_PERM_LOG_RES, | |
3619 | XFS_MKDIR_LOG_COUNT); | |
3620 | ||
3621 | if (error) | |
3622 | res_failed(error); | |
3623 | ||
3624 | libxfs_trans_ijoin(tp, ip, 0); | |
3625 | libxfs_trans_ihold(tp, ip); | |
3626 | ||
3627 | XFS_BMAP_INIT(&flist, &first); | |
3628 | ||
27527004 NS |
3629 | if ((error = dir_createname(mp, tp, ip, "..", 2, |
3630 | ip->i_ino, &first, &flist, nres))) | |
2bd0ea18 | 3631 | do_error( |
507f4e33 | 3632 | _("can't make \"..\" entry in root inode %llu, createname error %d\n"), |
2bd0ea18 NS |
3633 | ino, error); |
3634 | ||
3635 | libxfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
3636 | ||
3637 | error = libxfs_bmap_finish(&tp, &flist, first, | |
3638 | &committed); | |
3639 | ASSERT(error == 0); | |
3640 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES | |
3641 | |XFS_TRANS_SYNC, 0); | |
3642 | ||
3643 | need_root_dotdot = 0; | |
3644 | } else if (need_root_dotdot && ino == mp->m_sb.sb_rootino) { | |
507f4e33 | 3645 | do_warn(_("would recreate root directory .. entry\n")); |
2bd0ea18 NS |
3646 | } |
3647 | ||
3648 | /* | |
3649 | * delete any illegal entries -- which should only exist | |
3650 | * if the directory is a longform directory. bogus | |
3651 | * shortform directory entries were deleted in phase 4. | |
3652 | */ | |
3653 | if (!no_modify && num_illegal > 0) { | |
3654 | ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_LOCAL); | |
3655 | ASSERT(!XFS_SB_VERSION_HASDIRV2(&mp->m_sb)); | |
3656 | ||
3657 | while (num_illegal > 0 && ip->i_d.di_format != | |
3658 | XFS_DINODE_FMT_LOCAL) { | |
3659 | prune_lf_dir_entry(mp, ino, ip, &hashval); | |
3660 | num_illegal--; | |
3661 | } | |
3662 | ||
3663 | /* | |
3664 | * handle case where we've deleted so many | |
3665 | * entries that the directory has changed from | |
3666 | * a longform to a shortform directory. have | |
3667 | * to allocate a transaction since we're working | |
3668 | * with the incore data fork. | |
3669 | */ | |
3670 | if (num_illegal > 0) { | |
3671 | ASSERT(ip->i_d.di_format == | |
3672 | XFS_DINODE_FMT_LOCAL); | |
3673 | tp = libxfs_trans_alloc(mp, 0); | |
3674 | /* | |
3675 | * using the remove reservation is overkill | |
3676 | * since at most we'll only need to log the | |
3677 | * inode but it's easier than wedging a | |
3678 | * new define in ourselves. 10 block fs | |
3679 | * space reservation is also overkill but | |
3680 | * what the heck... | |
3681 | */ | |
3682 | nres = XFS_REMOVE_SPACE_RES(mp); | |
3683 | error = libxfs_trans_reserve(tp, nres, | |
3684 | XFS_REMOVE_LOG_RES(mp), 0, | |
3685 | XFS_TRANS_PERM_LOG_RES, | |
3686 | XFS_REMOVE_LOG_COUNT); | |
3687 | if (error) | |
3688 | res_failed(error); | |
3689 | ||
3690 | libxfs_trans_ijoin(tp, ip, 0); | |
3691 | libxfs_trans_ihold(tp, ip); | |
3692 | ||
3693 | prune_sf_dir_entry(mp, ino, ip); | |
3694 | ||
3695 | libxfs_trans_log_inode(tp, ip, | |
3696 | XFS_ILOG_CORE | XFS_ILOG_DDATA); | |
3697 | ASSERT(error == 0); | |
3698 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES | |
3699 | |XFS_TRANS_SYNC, 0); | |
3700 | } | |
3701 | } | |
3702 | ||
3703 | /* | |
3704 | * if we need to create the '.' entry, do so only if | |
3705 | * the directory is a longform dir. it it's been | |
3706 | * turned into a shortform dir, then the inode is ok | |
3707 | * since shortform dirs have no '.' entry and the inode | |
3708 | * has already been committed by prune_lf_dir_entry(). | |
3709 | */ | |
3710 | if (need_dot) { | |
3711 | /* | |
3712 | * bump up our link count but don't | |
3713 | * bump up the inode link count. chances | |
3714 | * are good that even though we lost '.' | |
3715 | * the inode link counts reflect '.' so | |
3716 | * leave the inode link count alone and if | |
3717 | * it turns out to be wrong, we'll catch | |
3718 | * that in phase 7. | |
3719 | */ | |
3720 | add_inode_ref(irec, ino_offset); | |
3721 | ||
3722 | if (no_modify) { | |
3723 | do_warn( | |
507f4e33 | 3724 | _("would create missing \".\" entry in dir ino %llu\n"), |
2bd0ea18 NS |
3725 | ino); |
3726 | } else if (ip->i_d.di_format != XFS_DINODE_FMT_LOCAL) { | |
3727 | /* | |
3728 | * need to create . entry in longform dir. | |
3729 | */ | |
3730 | do_warn( | |
507f4e33 | 3731 | _("creating missing \".\" entry in dir ino %llu\n"), |
2bd0ea18 NS |
3732 | ino); |
3733 | ||
3734 | tp = libxfs_trans_alloc(mp, 0); | |
3735 | ASSERT(tp != NULL); | |
3736 | ||
3737 | nres = XFS_MKDIR_SPACE_RES(mp, 1); | |
3738 | error = libxfs_trans_reserve(tp, nres, | |
3739 | XFS_MKDIR_LOG_RES(mp), | |
3740 | 0, | |
3741 | XFS_TRANS_PERM_LOG_RES, | |
3742 | XFS_MKDIR_LOG_COUNT); | |
3743 | ||
3744 | if (error) | |
3745 | res_failed(error); | |
3746 | ||
3747 | libxfs_trans_ijoin(tp, ip, 0); | |
3748 | libxfs_trans_ihold(tp, ip); | |
3749 | ||
3750 | XFS_BMAP_INIT(&flist, &first); | |
3751 | ||
27527004 | 3752 | if ((error = dir_createname(mp, tp, ip, ".", |
2bd0ea18 | 3753 | 1, ip->i_ino, &first, &flist, |
27527004 | 3754 | nres))) |
2bd0ea18 | 3755 | do_error( |
507f4e33 | 3756 | _("can't make \".\" entry in dir ino %llu, createname error %d\n"), |
2bd0ea18 NS |
3757 | ino, error); |
3758 | ||
3759 | libxfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
3760 | ||
3761 | error = libxfs_bmap_finish(&tp, &flist, first, | |
3762 | &committed); | |
3763 | ASSERT(error == 0); | |
3764 | libxfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES | |
3765 | |XFS_TRANS_SYNC, 0); | |
3766 | } | |
3767 | } | |
3768 | ||
3769 | libxfs_iput(ip, 0); | |
3770 | } | |
3771 | } | |
3772 | ||
3773 | /* | |
3774 | * mark realtime bitmap and summary inodes as reached. | |
3775 | * quota inode will be marked here as well | |
3776 | */ | |
3777 | void | |
3778 | mark_standalone_inodes(xfs_mount_t *mp) | |
3779 | { | |
3780 | ino_tree_node_t *irec; | |
3781 | int offset; | |
3782 | ||
3783 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, mp->m_sb.sb_rbmino), | |
3784 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rbmino)); | |
3785 | ||
3786 | ASSERT(irec != NULL); | |
3787 | ||
3788 | offset = XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rbmino) - | |
3789 | irec->ino_startnum; | |
3790 | ||
3791 | add_inode_reached(irec, offset); | |
3792 | ||
3793 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, mp->m_sb.sb_rsumino), | |
3794 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rsumino)); | |
3795 | ||
dfc130f3 | 3796 | offset = XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rsumino) - |
2bd0ea18 NS |
3797 | irec->ino_startnum; |
3798 | ||
3799 | ASSERT(irec != NULL); | |
3800 | ||
3801 | add_inode_reached(irec, offset); | |
3802 | ||
3803 | if (fs_quotas) { | |
3804 | if (mp->m_sb.sb_uquotino | |
3805 | && mp->m_sb.sb_uquotino != NULLFSINO) { | |
3806 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, | |
3807 | mp->m_sb.sb_uquotino), | |
3808 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_uquotino)); | |
3809 | offset = XFS_INO_TO_AGINO(mp, mp->m_sb.sb_uquotino) | |
3810 | - irec->ino_startnum; | |
3811 | add_inode_reached(irec, offset); | |
3812 | } | |
b36eef04 NS |
3813 | if (mp->m_sb.sb_gquotino |
3814 | && mp->m_sb.sb_gquotino != NULLFSINO) { | |
2bd0ea18 | 3815 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, |
b36eef04 NS |
3816 | mp->m_sb.sb_gquotino), |
3817 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_gquotino)); | |
3818 | offset = XFS_INO_TO_AGINO(mp, mp->m_sb.sb_gquotino) | |
2bd0ea18 NS |
3819 | - irec->ino_startnum; |
3820 | add_inode_reached(irec, offset); | |
3821 | } | |
3822 | } | |
3823 | } | |
3824 | ||
a1d54891 MV |
3825 | static void |
3826 | traverse_function(xfs_mount_t *mp, xfs_agnumber_t agno) | |
3827 | { | |
3828 | register ino_tree_node_t *irec; | |
3829 | int j; | |
3830 | xfs_ino_t ino; | |
3831 | dir_stack_t stack; | |
3832 | ||
3833 | if (verbose) | |
3834 | do_log(_(" - agno = %d\n"), agno); | |
3835 | ||
3836 | dir_stack_init(&stack); | |
3837 | irec = findfirst_inode_rec(agno); | |
3838 | ||
3839 | while (irec != NULL) { | |
3840 | for (j = 0; j < XFS_INODES_PER_CHUNK; j++) { | |
9553ab05 MV |
3841 | if (!inode_isadir(irec, j)) { |
3842 | ino = XFS_AGINO_TO_INO(mp, agno, | |
3843 | irec->ino_startnum + j); | |
3844 | if (mp->m_sb.sb_rootino != ino) | |
3845 | continue; | |
3846 | } | |
a1d54891 MV |
3847 | |
3848 | ino = XFS_AGINO_TO_INO(mp, agno, | |
3849 | irec->ino_startnum + j); | |
3850 | ||
3851 | push_dir(&stack, ino); | |
3852 | process_dirstack(mp, &stack); | |
3853 | } | |
3854 | irec = next_ino_rec(irec); | |
3855 | } | |
3856 | return; | |
3857 | } | |
3858 | ||
3859 | static void | |
3860 | traverse_alt(xfs_mount_t *mp) | |
3861 | { | |
3862 | int i; | |
3863 | ||
06fbdda9 | 3864 | set_progress_msg(PROG_FMT_TRAVERSAL, (__uint64_t) glob_agcount); |
a1d54891 MV |
3865 | for (i = 0; i < mp->m_sb.sb_agcount; i++) { |
3866 | traverse_function(mp, i); | |
06fbdda9 | 3867 | PROG_RPT_INC(prog_rpt_done[i], 1); |
a1d54891 | 3868 | } |
06fbdda9 | 3869 | print_final_rpt(); |
a1d54891 MV |
3870 | } |
3871 | ||
2bd0ea18 NS |
3872 | void |
3873 | phase6(xfs_mount_t *mp) | |
3874 | { | |
3875 | xfs_ino_t ino; | |
3876 | ino_tree_node_t *irec; | |
3877 | dir_stack_t stack; | |
3878 | int i; | |
3879 | int j; | |
3880 | ||
9f064b7e NS |
3881 | bzero(&zerocr, sizeof(struct cred)); |
3882 | bzero(&zerofsx, sizeof(struct fsxattr)); | |
2bd0ea18 | 3883 | |
507f4e33 | 3884 | do_log(_("Phase 6 - check inode connectivity...\n")); |
2bd0ea18 NS |
3885 | |
3886 | if (!no_modify) | |
3887 | teardown_bmap_finish(mp); | |
3888 | else | |
3889 | teardown_bmap(mp); | |
3890 | ||
3891 | incore_ext_teardown(mp); | |
3892 | ||
3893 | add_ino_backptrs(mp); | |
3894 | ||
3895 | /* | |
3896 | * verify existence of root directory - if we have to | |
3897 | * make one, it's ok for the incore data structs not to | |
3898 | * know about it since everything about it (and the other | |
3899 | * inodes in its chunk if a new chunk was created) are ok | |
3900 | */ | |
3901 | if (need_root_inode) { | |
3902 | if (!no_modify) { | |
507f4e33 | 3903 | do_warn(_("reinitializing root directory\n")); |
2bd0ea18 NS |
3904 | mk_root_dir(mp); |
3905 | need_root_inode = 0; | |
3906 | need_root_dotdot = 0; | |
3907 | } else { | |
507f4e33 | 3908 | do_warn(_("would reinitialize root directory\n")); |
2bd0ea18 NS |
3909 | } |
3910 | } | |
3911 | ||
3912 | if (need_rbmino) { | |
3913 | if (!no_modify) { | |
507f4e33 | 3914 | do_warn(_("reinitializing realtime bitmap inode\n")); |
2bd0ea18 NS |
3915 | mk_rbmino(mp); |
3916 | need_rbmino = 0; | |
3917 | } else { | |
507f4e33 | 3918 | do_warn(_("would reinitialize realtime bitmap inode\n")); |
2bd0ea18 NS |
3919 | } |
3920 | } | |
3921 | ||
3922 | if (need_rsumino) { | |
3923 | if (!no_modify) { | |
507f4e33 | 3924 | do_warn(_("reinitializing realtime summary inode\n")); |
2bd0ea18 NS |
3925 | mk_rsumino(mp); |
3926 | need_rsumino = 0; | |
3927 | } else { | |
507f4e33 | 3928 | do_warn(_("would reinitialize realtime summary inode\n")); |
2bd0ea18 NS |
3929 | } |
3930 | } | |
3931 | ||
3932 | if (!no_modify) { | |
3933 | do_log( | |
507f4e33 | 3934 | _(" - resetting contents of realtime bitmap and summary inodes\n")); |
2bd0ea18 NS |
3935 | if (fill_rbmino(mp)) { |
3936 | do_warn( | |
507f4e33 | 3937 | _("Warning: realtime bitmap may be inconsistent\n")); |
2bd0ea18 NS |
3938 | } |
3939 | ||
3940 | if (fill_rsumino(mp)) { | |
3941 | do_warn( | |
507f4e33 | 3942 | _("Warning: realtime bitmap may be inconsistent\n")); |
2bd0ea18 NS |
3943 | } |
3944 | } | |
3945 | ||
3946 | /* | |
3947 | * make orphanage (it's guaranteed to not exist now) | |
3948 | */ | |
3949 | if (!no_modify) { | |
507f4e33 | 3950 | do_log(_(" - ensuring existence of %s directory\n"), |
2bd0ea18 NS |
3951 | ORPHANAGE); |
3952 | orphanage_ino = mk_orphanage(mp); | |
3953 | } | |
3954 | ||
3955 | dir_stack_init(&stack); | |
3956 | ||
3957 | mark_standalone_inodes(mp); | |
3958 | ||
3959 | /* | |
3960 | * push root dir on stack, then go | |
3961 | */ | |
3962 | if (!need_root_inode) { | |
507f4e33 | 3963 | do_log(_(" - traversing filesystem starting at / ... \n")); |
2bd0ea18 | 3964 | |
a1d54891 MV |
3965 | if (do_prefetch) { |
3966 | traverse_alt(mp); | |
3967 | } else { | |
3968 | push_dir(&stack, mp->m_sb.sb_rootino); | |
3969 | process_dirstack(mp, &stack); | |
3970 | } | |
2bd0ea18 | 3971 | |
507f4e33 | 3972 | do_log(_(" - traversal finished ... \n")); |
2bd0ea18 NS |
3973 | } else { |
3974 | ASSERT(no_modify != 0); | |
3975 | ||
3976 | do_log( | |
507f4e33 | 3977 | _(" - root inode lost, cannot make new one in no modify mode ... \n")); |
2bd0ea18 | 3978 | do_log( |
507f4e33 | 3979 | _(" - skipping filesystem traversal from / ... \n")); |
2bd0ea18 NS |
3980 | } |
3981 | ||
507f4e33 | 3982 | do_log(_(" - traversing all unattached subtrees ... \n")); |
2bd0ea18 NS |
3983 | |
3984 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, mp->m_sb.sb_rootino), | |
3985 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rootino)); | |
3986 | ||
3987 | /* | |
3988 | * we always have a root inode, even if it's free... | |
3989 | * if the root is free, forget it, lost+found is already gone | |
3990 | */ | |
3991 | if (is_inode_free(irec, 0) || !inode_isadir(irec, 0)) { | |
3992 | need_root_inode = 1; | |
3993 | } | |
3994 | ||
3995 | /* | |
3996 | * then process all unreached inodes | |
3997 | * by walking incore inode tree | |
3998 | * | |
3999 | * get next unreached directory inode # from | |
4000 | * incore list | |
4001 | * push inode on dir stack | |
4002 | * call process_dirstack | |
4003 | */ | |
4004 | for (i = 0; i < glob_agcount; i++) { | |
4005 | irec = findfirst_inode_rec(i); | |
4006 | ||
4007 | if (irec == NULL) | |
4008 | continue; | |
4009 | ||
4010 | while (irec != NULL) { | |
4011 | for (j = 0; j < XFS_INODES_PER_CHUNK; j++) { | |
4012 | if (!is_inode_confirmed(irec, j)) | |
4013 | continue; | |
4014 | /* | |
4015 | * skip directories that have already been | |
4016 | * processed, even if they haven't been | |
4017 | * reached. If they are reachable, we'll | |
4018 | * pick them up when we process their parent. | |
4019 | */ | |
4020 | ino = XFS_AGINO_TO_INO(mp, i, | |
4021 | j + irec->ino_startnum); | |
4022 | if (inode_isadir(irec, j) && | |
4023 | !is_inode_refchecked(ino, | |
4024 | irec, j)) { | |
4025 | push_dir(&stack, ino); | |
4026 | process_dirstack(mp, &stack); | |
4027 | } | |
4028 | } | |
4029 | irec = next_ino_rec(irec); | |
4030 | } | |
4031 | } | |
4032 | ||
507f4e33 | 4033 | do_log(_(" - traversals finished ... \n")); |
33165ec3 BN |
4034 | |
4035 | /* flush all dirty data before doing lost+found search */ | |
4036 | libxfs_bcache_flush(); | |
4037 | ||
507f4e33 | 4038 | do_log(_(" - moving disconnected inodes to lost+found ... \n")); |
2bd0ea18 NS |
4039 | |
4040 | /* | |
4041 | * move all disconnected inodes to the orphanage | |
4042 | */ | |
4043 | for (i = 0; i < glob_agcount; i++) { | |
4044 | irec = findfirst_inode_rec(i); | |
4045 | ||
4046 | if (irec == NULL) | |
4047 | continue; | |
4048 | ||
4049 | while (irec != NULL) { | |
4050 | for (j = 0; j < XFS_INODES_PER_CHUNK; j++) { | |
4051 | ASSERT(is_inode_confirmed(irec, j)); | |
4052 | if (is_inode_free(irec, j)) | |
4053 | continue; | |
4054 | if (!is_inode_reached(irec, j)) { | |
4055 | ASSERT(inode_isadir(irec, j) || | |
4056 | num_inode_references(irec, j) | |
4057 | == 0); | |
4058 | ino = XFS_AGINO_TO_INO(mp, i, | |
4059 | j + irec->ino_startnum); | |
4060 | if (inode_isadir(irec, j)) | |
4061 | do_warn( | |
507f4e33 | 4062 | _("disconnected dir inode %llu, "), |
2bd0ea18 NS |
4063 | ino); |
4064 | else | |
4065 | do_warn( | |
507f4e33 | 4066 | _("disconnected inode %llu, "), |
2bd0ea18 NS |
4067 | ino); |
4068 | if (!no_modify) { | |
507f4e33 | 4069 | do_warn(_("moving to %s\n"), |
2bd0ea18 NS |
4070 | ORPHANAGE); |
4071 | mv_orphanage(mp, orphanage_ino, | |
4072 | ino, | |
4073 | inode_isadir(irec, j)); | |
4074 | } else { | |
507f4e33 | 4075 | do_warn(_("would move to %s\n"), |
2bd0ea18 NS |
4076 | ORPHANAGE); |
4077 | } | |
4078 | /* | |
4079 | * for read-only case, even though | |
4080 | * the inode isn't really reachable, | |
4081 | * set the flag (and bump our link | |
4082 | * count) anyway to fool phase 7 | |
4083 | */ | |
4084 | add_inode_reached(irec, j); | |
4085 | } | |
4086 | } | |
4087 | irec = next_ino_rec(irec); | |
4088 | } | |
4089 | } | |
4090 | } |