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2bd0ea18 | 1 | /* |
da23017d NS |
2 | * Copyright (c) 2000-2002,2005 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 | ||
19 | #include <libxfs.h> | |
20 | #include "avl.h" | |
21 | #include "globals.h" | |
22 | #include "agheader.h" | |
23 | #include "incore.h" | |
24 | #include "protos.h" | |
25 | #include "err_protos.h" | |
26 | #include "dinode.h" | |
27 | #include "dir.h" | |
28 | #include "bmap.h" | |
29 | #include "versions.h" | |
30 | #include "dir2.h" | |
3b6ac903 | 31 | #include "threads.h" |
06fbdda9 | 32 | #include "progress.h" |
2556c98b | 33 | #include "prefetch.h" |
2bd0ea18 NS |
34 | |
35 | ||
2bd0ea18 NS |
36 | /* |
37 | * null out quota inode fields in sb if they point to non-existent inodes. | |
38 | * this isn't as redundant as it looks since it's possible that the sb field | |
39 | * might be set but the imap and inode(s) agree that the inode is | |
40 | * free in which case they'd never be cleared so the fields wouldn't | |
41 | * be cleared by process_dinode(). | |
42 | */ | |
43 | void | |
44 | quotino_check(xfs_mount_t *mp) | |
45 | { | |
46 | ino_tree_node_t *irec; | |
47 | ||
48 | if (mp->m_sb.sb_uquotino != NULLFSINO && mp->m_sb.sb_uquotino != 0) { | |
6411f39c BN |
49 | if (verify_inum(mp, mp->m_sb.sb_uquotino)) |
50 | irec = NULL; | |
51 | else | |
52 | irec = find_inode_rec( | |
53 | XFS_INO_TO_AGNO(mp, mp->m_sb.sb_uquotino), | |
54 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_uquotino)); | |
2bd0ea18 NS |
55 | |
56 | if (irec == NULL || is_inode_free(irec, | |
57 | mp->m_sb.sb_uquotino - irec->ino_startnum)) { | |
58 | mp->m_sb.sb_uquotino = NULLFSINO; | |
59 | lost_uquotino = 1; | |
60 | } else | |
61 | lost_uquotino = 0; | |
62 | } | |
63 | ||
b36eef04 | 64 | if (mp->m_sb.sb_gquotino != NULLFSINO && mp->m_sb.sb_gquotino != 0) { |
6411f39c BN |
65 | if (verify_inum(mp, mp->m_sb.sb_gquotino)) |
66 | irec = NULL; | |
67 | else | |
68 | irec = find_inode_rec( | |
69 | XFS_INO_TO_AGNO(mp, mp->m_sb.sb_gquotino), | |
70 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_gquotino)); | |
2bd0ea18 NS |
71 | |
72 | if (irec == NULL || is_inode_free(irec, | |
b36eef04 NS |
73 | mp->m_sb.sb_gquotino - irec->ino_startnum)) { |
74 | mp->m_sb.sb_gquotino = NULLFSINO; | |
9b27bdbb NS |
75 | if (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) |
76 | lost_gquotino = 1; | |
77 | else | |
78 | lost_pquotino = 1; | |
2bd0ea18 | 79 | } else |
9b27bdbb | 80 | lost_gquotino = lost_pquotino = 0; |
2bd0ea18 NS |
81 | } |
82 | } | |
83 | ||
84 | void | |
85 | quota_sb_check(xfs_mount_t *mp) | |
86 | { | |
87 | /* | |
88 | * if the sb says we have quotas and we lost both, | |
89 | * signal a superblock downgrade. that will cause | |
90 | * the quota flags to get zeroed. (if we only lost | |
91 | * one quota inode, do nothing and complain later.) | |
92 | * | |
93 | * if the sb says we have quotas but we didn't start out | |
94 | * with any quota inodes, signal a superblock downgrade. | |
95 | * | |
96 | * The sb downgrades are so that older systems can mount | |
97 | * the filesystem. | |
98 | * | |
99 | * if the sb says we don't have quotas but it looks like | |
100 | * we do have quota inodes, then signal a superblock upgrade. | |
101 | * | |
102 | * if the sb says we don't have quotas and we have no | |
103 | * quota inodes, then leave will enough alone. | |
104 | */ | |
105 | ||
106 | if (fs_quotas && | |
107 | (mp->m_sb.sb_uquotino == NULLFSINO || mp->m_sb.sb_uquotino == 0) && | |
b36eef04 | 108 | (mp->m_sb.sb_gquotino == NULLFSINO || mp->m_sb.sb_gquotino == 0)) { |
2bd0ea18 NS |
109 | lost_quotas = 1; |
110 | fs_quotas = 0; | |
111 | } else if (!verify_inum(mp, mp->m_sb.sb_uquotino) && | |
b36eef04 | 112 | !verify_inum(mp, mp->m_sb.sb_gquotino)) { |
2bd0ea18 NS |
113 | fs_quotas = 1; |
114 | } | |
115 | } | |
116 | ||
117 | ||
2556c98b BN |
118 | static void |
119 | process_ag_func( | |
120 | work_queue_t *wq, | |
121 | xfs_agnumber_t agno, | |
122 | void *arg) | |
3b6ac903 | 123 | { |
2556c98b | 124 | wait_for_inode_prefetch(arg); |
3b6ac903 | 125 | do_log(_(" - agno = %d\n"), agno); |
2556c98b BN |
126 | process_aginodes(wq->mp, arg, agno, 0, 1, 0); |
127 | cleanup_inode_prefetch(arg); | |
3b6ac903 MV |
128 | |
129 | /* | |
130 | * now recycle the per-AG duplicate extent records | |
131 | */ | |
132 | release_dup_extent_tree(agno); | |
133 | } | |
134 | ||
2556c98b BN |
135 | static void |
136 | process_ags( | |
137 | xfs_mount_t *mp) | |
138 | { | |
139 | int i, j; | |
af2984c9 | 140 | xfs_agnumber_t agno; |
2556c98b BN |
141 | work_queue_t *queues; |
142 | prefetch_args_t *pf_args[2]; | |
143 | ||
144 | queues = malloc(thread_count * sizeof(work_queue_t)); | |
145 | ||
146 | if (!libxfs_bcache_overflowed()) { | |
147 | queues[0].mp = mp; | |
148 | create_work_queue(&queues[0], mp, libxfs_nproc()); | |
149 | for (i = 0; i < mp->m_sb.sb_agcount; i++) | |
150 | queue_work(&queues[0], process_ag_func, i, NULL); | |
151 | destroy_work_queue(&queues[0]); | |
152 | } else { | |
153 | if (ag_stride) { | |
154 | /* | |
155 | * create one worker thread for each segment of the volume | |
156 | */ | |
af2984c9 | 157 | for (i = 0, agno = 0; i < thread_count; i++) { |
2556c98b BN |
158 | create_work_queue(&queues[i], mp, 1); |
159 | pf_args[0] = NULL; | |
af2984c9 BN |
160 | for (j = 0; j < ag_stride && agno < mp->m_sb.sb_agcount; |
161 | j++, agno++) { | |
162 | pf_args[0] = start_inode_prefetch(agno, 0, pf_args[0]); | |
163 | queue_work(&queues[i], process_ag_func, agno, pf_args[0]); | |
2556c98b BN |
164 | } |
165 | } | |
166 | /* | |
167 | * wait for workers to complete | |
168 | */ | |
169 | for (i = 0; i < thread_count; i++) | |
170 | destroy_work_queue(&queues[i]); | |
171 | } else { | |
172 | queues[0].mp = mp; | |
173 | pf_args[0] = start_inode_prefetch(0, 0, NULL); | |
174 | for (i = 0; i < mp->m_sb.sb_agcount; i++) { | |
175 | pf_args[(~i) & 1] = start_inode_prefetch(i + 1, | |
176 | 0, pf_args[i & 1]); | |
177 | process_ag_func(&queues[0], i, pf_args[i & 1]); | |
178 | } | |
179 | } | |
180 | } | |
181 | free(queues); | |
182 | } | |
183 | ||
184 | ||
2bd0ea18 NS |
185 | void |
186 | phase4(xfs_mount_t *mp) | |
187 | { | |
188 | ino_tree_node_t *irec; | |
189 | xfs_drtbno_t bno; | |
190 | xfs_drtbno_t rt_start; | |
191 | xfs_extlen_t rt_len; | |
192 | xfs_agnumber_t i; | |
193 | xfs_agblock_t j; | |
194 | xfs_agblock_t ag_end; | |
195 | xfs_agblock_t extent_start; | |
196 | xfs_extlen_t extent_len; | |
197 | int ag_hdr_len = 4 * mp->m_sb.sb_sectsize; | |
198 | int ag_hdr_block; | |
199 | int bstate; | |
200 | int count_bcnt_extents(xfs_agnumber_t agno); | |
201 | int count_bno_extents(xfs_agnumber_t agno); | |
dfc130f3 | 202 | |
2bd0ea18 NS |
203 | ag_hdr_block = howmany(ag_hdr_len, mp->m_sb.sb_blocksize); |
204 | ||
507f4e33 NS |
205 | do_log(_("Phase 4 - check for duplicate blocks...\n")); |
206 | do_log(_(" - setting up duplicate extent list...\n")); | |
2bd0ea18 | 207 | |
06fbdda9 MV |
208 | set_progress_msg(PROG_FMT_DUP_EXTENT, (__uint64_t) glob_agcount); |
209 | ||
2bd0ea18 NS |
210 | irec = find_inode_rec(XFS_INO_TO_AGNO(mp, mp->m_sb.sb_rootino), |
211 | XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rootino)); | |
212 | ||
213 | /* | |
214 | * we always have a root inode, even if it's free... | |
215 | * if the root is free, forget it, lost+found is already gone | |
216 | */ | |
217 | if (is_inode_free(irec, 0) || !inode_isadir(irec, 0)) { | |
218 | need_root_inode = 1; | |
219 | if (no_modify) | |
507f4e33 | 220 | do_warn(_("root inode would be lost\n")); |
2bd0ea18 | 221 | else |
507f4e33 | 222 | do_warn(_("root inode lost\n")); |
2bd0ea18 NS |
223 | } |
224 | ||
2bd0ea18 NS |
225 | for (i = 0; i < mp->m_sb.sb_agcount; i++) { |
226 | ag_end = (i < mp->m_sb.sb_agcount - 1) ? mp->m_sb.sb_agblocks : | |
227 | mp->m_sb.sb_dblocks - | |
228 | (xfs_drfsbno_t) mp->m_sb.sb_agblocks * i; | |
229 | extent_start = extent_len = 0; | |
230 | /* | |
231 | * set up duplicate extent list for this ag | |
232 | */ | |
233 | for (j = ag_hdr_block; j < ag_end; j++) { | |
234 | ||
1e77098c MV |
235 | /* Process in chunks of 16 (XR_BB_UNIT/XR_BB) */ |
236 | if ((extent_start == 0) && ((j & XR_BB_MASK) == 0)) { | |
237 | switch(ba_bmap[i][j>>XR_BB]) { | |
238 | case XR_E_UNKNOWN_LL: | |
239 | case XR_E_FREE1_LL: | |
240 | case XR_E_FREE_LL: | |
241 | case XR_E_INUSE_LL: | |
242 | case XR_E_INUSE_FS_LL: | |
243 | case XR_E_INO_LL: | |
244 | case XR_E_FS_MAP_LL: | |
245 | j += (XR_BB_UNIT/XR_BB) - 1; | |
246 | continue; | |
247 | } | |
248 | } | |
249 | ||
2bd0ea18 NS |
250 | bstate = get_agbno_state(mp, i, j); |
251 | ||
252 | switch (bstate) { | |
253 | case XR_E_BAD_STATE: | |
254 | default: | |
507f4e33 NS |
255 | do_warn( |
256 | _("unknown block state, ag %d, block %d\n"), | |
2bd0ea18 NS |
257 | i, j); |
258 | /* fall through .. */ | |
259 | case XR_E_UNKNOWN: | |
260 | case XR_E_FREE1: | |
261 | case XR_E_FREE: | |
262 | case XR_E_INUSE: | |
263 | case XR_E_INUSE_FS: | |
264 | case XR_E_INO: | |
265 | case XR_E_FS_MAP: | |
266 | if (extent_start == 0) | |
267 | continue; | |
268 | else { | |
269 | /* | |
270 | * add extent and reset extent state | |
271 | */ | |
272 | add_dup_extent(i, extent_start, | |
273 | extent_len); | |
274 | extent_start = 0; | |
275 | extent_len = 0; | |
276 | } | |
277 | break; | |
278 | case XR_E_MULT: | |
279 | if (extent_start == 0) { | |
280 | extent_start = j; | |
281 | extent_len = 1; | |
282 | } else if (extent_len == MAXEXTLEN) { | |
283 | add_dup_extent(i, extent_start, | |
284 | extent_len); | |
285 | extent_start = j; | |
286 | extent_len = 1; | |
287 | } else | |
288 | extent_len++; | |
289 | break; | |
290 | } | |
291 | } | |
292 | /* | |
293 | * catch tail-case, extent hitting the end of the ag | |
294 | */ | |
295 | if (extent_start != 0) | |
296 | add_dup_extent(i, extent_start, extent_len); | |
06fbdda9 | 297 | PROG_RPT_INC(prog_rpt_done[i], 1); |
2bd0ea18 | 298 | } |
06fbdda9 | 299 | print_final_rpt(); |
2bd0ea18 NS |
300 | |
301 | /* | |
302 | * initialize realtime bitmap | |
303 | */ | |
304 | rt_start = 0; | |
305 | rt_len = 0; | |
306 | ||
307 | for (bno = 0; bno < mp->m_sb.sb_rextents; bno++) { | |
308 | ||
309 | bstate = get_rtbno_state(mp, bno); | |
310 | ||
311 | switch (bstate) { | |
312 | case XR_E_BAD_STATE: | |
313 | default: | |
507f4e33 NS |
314 | do_warn(_("unknown rt extent state, extent %llu\n"), |
315 | bno); | |
2bd0ea18 NS |
316 | /* fall through .. */ |
317 | case XR_E_UNKNOWN: | |
318 | case XR_E_FREE1: | |
319 | case XR_E_FREE: | |
320 | case XR_E_INUSE: | |
321 | case XR_E_INUSE_FS: | |
322 | case XR_E_INO: | |
323 | case XR_E_FS_MAP: | |
324 | if (rt_start == 0) | |
325 | continue; | |
326 | else { | |
327 | /* | |
328 | * add extent and reset extent state | |
329 | */ | |
330 | add_rt_dup_extent(rt_start, rt_len); | |
331 | rt_start = 0; | |
332 | rt_len = 0; | |
333 | } | |
334 | break; | |
335 | case XR_E_MULT: | |
336 | if (rt_start == 0) { | |
337 | rt_start = bno; | |
338 | rt_len = 1; | |
339 | } else if (rt_len == MAXEXTLEN) { | |
340 | /* | |
341 | * large extent case | |
342 | */ | |
343 | add_rt_dup_extent(rt_start, rt_len); | |
344 | rt_start = bno; | |
345 | rt_len = 1; | |
346 | } else | |
347 | rt_len++; | |
348 | break; | |
349 | } | |
350 | } | |
351 | ||
352 | /* | |
353 | * catch tail-case, extent hitting the end of the ag | |
354 | */ | |
355 | if (rt_start != 0) | |
356 | add_rt_dup_extent(rt_start, rt_len); | |
357 | ||
358 | /* | |
359 | * initialize bitmaps for all AGs | |
360 | */ | |
361 | for (i = 0; i < mp->m_sb.sb_agcount; i++) { | |
2bd0ea18 NS |
362 | /* |
363 | * now reset the bitmap for all ags | |
364 | */ | |
dab9b8d6 | 365 | memset(ba_bmap[i], 0, |
13002e23 | 366 | roundup((mp->m_sb.sb_agblocks+(NBBY/XR_BB)-1)/(NBBY/XR_BB), |
2bd0ea18 NS |
367 | sizeof(__uint64_t))); |
368 | for (j = 0; j < ag_hdr_block; j++) | |
369 | set_agbno_state(mp, i, j, XR_E_INUSE_FS); | |
370 | } | |
371 | set_bmap_rt(mp->m_sb.sb_rextents); | |
372 | set_bmap_log(mp); | |
373 | set_bmap_fs(mp); | |
374 | ||
507f4e33 | 375 | do_log(_(" - check for inodes claiming duplicate blocks...\n")); |
06fbdda9 | 376 | set_progress_msg(PROG_FMT_DUP_BLOCKS, (__uint64_t) mp->m_sb.sb_icount); |
add3cb90 BN |
377 | |
378 | /* | |
379 | * ok, now process the inodes -- signal 2-pass check per inode. | |
380 | * first pass checks if the inode conflicts with a known | |
381 | * duplicate extent. if so, the inode is cleared and second | |
382 | * pass is skipped. second pass sets the block bitmap | |
383 | * for all blocks claimed by the inode. directory | |
384 | * and attribute processing is turned OFF since we did that | |
385 | * already in phase 3. | |
386 | */ | |
2556c98b | 387 | process_ags(mp); |
06fbdda9 | 388 | print_final_rpt(); |
2bd0ea18 NS |
389 | |
390 | /* | |
391 | * free up memory used to track trealtime duplicate extents | |
392 | */ | |
393 | if (rt_start != 0) | |
394 | free_rt_dup_extent_tree(mp); | |
395 | ||
396 | /* | |
397 | * ensure consistency of quota inode pointers in superblock, | |
398 | * make sure they point to real inodes | |
399 | */ | |
400 | quotino_check(mp); | |
401 | quota_sb_check(mp); | |
402 | } |