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6772c1f1 DW |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * Copyright (C) 2019 Oracle. All Rights Reserved. | |
4 | * Author: Darrick J. Wong <[email protected]> | |
5 | */ | |
6 | #include "xfs.h" | |
7 | #include "xfs_fs.h" | |
8 | #include "xfs_shared.h" | |
9 | #include "xfs_format.h" | |
10 | #include "xfs_log_format.h" | |
11 | #include "xfs_trans_resv.h" | |
6772c1f1 | 12 | #include "xfs_mount.h" |
6772c1f1 DW |
13 | #include "xfs_inode.h" |
14 | #include "xfs_trace.h" | |
15 | #include "xfs_health.h" | |
9bbafc71 | 16 | #include "xfs_ag.h" |
6772c1f1 | 17 | |
519841c2 DW |
18 | /* |
19 | * Warn about metadata corruption that we detected but haven't fixed, and | |
20 | * make sure we're not sitting on anything that would get in the way of | |
21 | * recovery. | |
22 | */ | |
23 | void | |
24 | xfs_health_unmount( | |
25 | struct xfs_mount *mp) | |
26 | { | |
27 | struct xfs_perag *pag; | |
28 | xfs_agnumber_t agno; | |
29 | unsigned int sick = 0; | |
30 | unsigned int checked = 0; | |
31 | bool warn = false; | |
32 | ||
33 | if (XFS_FORCED_SHUTDOWN(mp)) | |
34 | return; | |
35 | ||
36 | /* Measure AG corruption levels. */ | |
f250eedc | 37 | for_each_perag(mp, agno, pag) { |
519841c2 DW |
38 | xfs_ag_measure_sickness(pag, &sick, &checked); |
39 | if (sick) { | |
40 | trace_xfs_ag_unfixed_corruption(mp, agno, sick); | |
41 | warn = true; | |
42 | } | |
519841c2 DW |
43 | } |
44 | ||
45 | /* Measure realtime volume corruption levels. */ | |
46 | xfs_rt_measure_sickness(mp, &sick, &checked); | |
47 | if (sick) { | |
48 | trace_xfs_rt_unfixed_corruption(mp, sick); | |
49 | warn = true; | |
50 | } | |
51 | ||
52 | /* | |
53 | * Measure fs corruption and keep the sample around for the warning. | |
54 | * See the note below for why we exempt FS_COUNTERS. | |
55 | */ | |
56 | xfs_fs_measure_sickness(mp, &sick, &checked); | |
57 | if (sick & ~XFS_SICK_FS_COUNTERS) { | |
58 | trace_xfs_fs_unfixed_corruption(mp, sick); | |
59 | warn = true; | |
60 | } | |
61 | ||
62 | if (warn) { | |
63 | xfs_warn(mp, | |
64 | "Uncorrected metadata errors detected; please run xfs_repair."); | |
65 | ||
66 | /* | |
67 | * We discovered uncorrected metadata problems at some point | |
68 | * during this filesystem mount and have advised the | |
69 | * administrator to run repair once the unmount completes. | |
70 | * | |
71 | * However, we must be careful -- when FSCOUNTERS are flagged | |
72 | * unhealthy, the unmount procedure omits writing the clean | |
73 | * unmount record to the log so that the next mount will run | |
74 | * recovery and recompute the summary counters. In other | |
75 | * words, we leave a dirty log to get the counters fixed. | |
76 | * | |
77 | * Unfortunately, xfs_repair cannot recover dirty logs, so if | |
78 | * there were filesystem problems, FSCOUNTERS was flagged, and | |
79 | * the administrator takes our advice to run xfs_repair, | |
80 | * they'll have to zap the log before repairing structures. | |
81 | * We don't really want to encourage this, so we mark the | |
82 | * FSCOUNTERS healthy so that a subsequent repair run won't see | |
83 | * a dirty log. | |
84 | */ | |
85 | if (sick & XFS_SICK_FS_COUNTERS) | |
86 | xfs_fs_mark_healthy(mp, XFS_SICK_FS_COUNTERS); | |
87 | } | |
88 | } | |
89 | ||
6772c1f1 DW |
90 | /* Mark unhealthy per-fs metadata. */ |
91 | void | |
92 | xfs_fs_mark_sick( | |
93 | struct xfs_mount *mp, | |
94 | unsigned int mask) | |
95 | { | |
96 | ASSERT(!(mask & ~XFS_SICK_FS_PRIMARY)); | |
97 | trace_xfs_fs_mark_sick(mp, mask); | |
98 | ||
99 | spin_lock(&mp->m_sb_lock); | |
100 | mp->m_fs_sick |= mask; | |
101 | mp->m_fs_checked |= mask; | |
102 | spin_unlock(&mp->m_sb_lock); | |
103 | } | |
104 | ||
105 | /* Mark a per-fs metadata healed. */ | |
106 | void | |
107 | xfs_fs_mark_healthy( | |
108 | struct xfs_mount *mp, | |
109 | unsigned int mask) | |
110 | { | |
111 | ASSERT(!(mask & ~XFS_SICK_FS_PRIMARY)); | |
112 | trace_xfs_fs_mark_healthy(mp, mask); | |
113 | ||
114 | spin_lock(&mp->m_sb_lock); | |
115 | mp->m_fs_sick &= ~mask; | |
116 | mp->m_fs_checked |= mask; | |
117 | spin_unlock(&mp->m_sb_lock); | |
118 | } | |
119 | ||
120 | /* Sample which per-fs metadata are unhealthy. */ | |
121 | void | |
122 | xfs_fs_measure_sickness( | |
123 | struct xfs_mount *mp, | |
124 | unsigned int *sick, | |
125 | unsigned int *checked) | |
126 | { | |
127 | spin_lock(&mp->m_sb_lock); | |
128 | *sick = mp->m_fs_sick; | |
129 | *checked = mp->m_fs_checked; | |
130 | spin_unlock(&mp->m_sb_lock); | |
131 | } | |
132 | ||
133 | /* Mark unhealthy realtime metadata. */ | |
134 | void | |
135 | xfs_rt_mark_sick( | |
136 | struct xfs_mount *mp, | |
137 | unsigned int mask) | |
138 | { | |
139 | ASSERT(!(mask & ~XFS_SICK_RT_PRIMARY)); | |
140 | trace_xfs_rt_mark_sick(mp, mask); | |
141 | ||
142 | spin_lock(&mp->m_sb_lock); | |
143 | mp->m_rt_sick |= mask; | |
144 | mp->m_rt_checked |= mask; | |
145 | spin_unlock(&mp->m_sb_lock); | |
146 | } | |
147 | ||
148 | /* Mark a realtime metadata healed. */ | |
149 | void | |
150 | xfs_rt_mark_healthy( | |
151 | struct xfs_mount *mp, | |
152 | unsigned int mask) | |
153 | { | |
154 | ASSERT(!(mask & ~XFS_SICK_RT_PRIMARY)); | |
155 | trace_xfs_rt_mark_healthy(mp, mask); | |
156 | ||
157 | spin_lock(&mp->m_sb_lock); | |
158 | mp->m_rt_sick &= ~mask; | |
159 | mp->m_rt_checked |= mask; | |
160 | spin_unlock(&mp->m_sb_lock); | |
161 | } | |
162 | ||
163 | /* Sample which realtime metadata are unhealthy. */ | |
164 | void | |
165 | xfs_rt_measure_sickness( | |
166 | struct xfs_mount *mp, | |
167 | unsigned int *sick, | |
168 | unsigned int *checked) | |
169 | { | |
170 | spin_lock(&mp->m_sb_lock); | |
171 | *sick = mp->m_rt_sick; | |
172 | *checked = mp->m_rt_checked; | |
173 | spin_unlock(&mp->m_sb_lock); | |
174 | } | |
175 | ||
176 | /* Mark unhealthy per-ag metadata. */ | |
177 | void | |
178 | xfs_ag_mark_sick( | |
179 | struct xfs_perag *pag, | |
180 | unsigned int mask) | |
181 | { | |
182 | ASSERT(!(mask & ~XFS_SICK_AG_PRIMARY)); | |
183 | trace_xfs_ag_mark_sick(pag->pag_mount, pag->pag_agno, mask); | |
184 | ||
185 | spin_lock(&pag->pag_state_lock); | |
186 | pag->pag_sick |= mask; | |
187 | pag->pag_checked |= mask; | |
188 | spin_unlock(&pag->pag_state_lock); | |
189 | } | |
190 | ||
191 | /* Mark per-ag metadata ok. */ | |
192 | void | |
193 | xfs_ag_mark_healthy( | |
194 | struct xfs_perag *pag, | |
195 | unsigned int mask) | |
196 | { | |
197 | ASSERT(!(mask & ~XFS_SICK_AG_PRIMARY)); | |
198 | trace_xfs_ag_mark_healthy(pag->pag_mount, pag->pag_agno, mask); | |
199 | ||
200 | spin_lock(&pag->pag_state_lock); | |
201 | pag->pag_sick &= ~mask; | |
202 | pag->pag_checked |= mask; | |
203 | spin_unlock(&pag->pag_state_lock); | |
204 | } | |
205 | ||
206 | /* Sample which per-ag metadata are unhealthy. */ | |
207 | void | |
208 | xfs_ag_measure_sickness( | |
209 | struct xfs_perag *pag, | |
210 | unsigned int *sick, | |
211 | unsigned int *checked) | |
212 | { | |
213 | spin_lock(&pag->pag_state_lock); | |
214 | *sick = pag->pag_sick; | |
215 | *checked = pag->pag_checked; | |
216 | spin_unlock(&pag->pag_state_lock); | |
217 | } | |
218 | ||
219 | /* Mark the unhealthy parts of an inode. */ | |
220 | void | |
221 | xfs_inode_mark_sick( | |
222 | struct xfs_inode *ip, | |
223 | unsigned int mask) | |
224 | { | |
225 | ASSERT(!(mask & ~XFS_SICK_INO_PRIMARY)); | |
226 | trace_xfs_inode_mark_sick(ip, mask); | |
227 | ||
228 | spin_lock(&ip->i_flags_lock); | |
229 | ip->i_sick |= mask; | |
230 | ip->i_checked |= mask; | |
231 | spin_unlock(&ip->i_flags_lock); | |
7975e465 DW |
232 | |
233 | /* | |
234 | * Keep this inode around so we don't lose the sickness report. Scrub | |
235 | * grabs inodes with DONTCACHE assuming that most inode are ok, which | |
236 | * is not the case here. | |
237 | */ | |
238 | spin_lock(&VFS_I(ip)->i_lock); | |
239 | VFS_I(ip)->i_state &= ~I_DONTCACHE; | |
240 | spin_unlock(&VFS_I(ip)->i_lock); | |
6772c1f1 DW |
241 | } |
242 | ||
243 | /* Mark parts of an inode healed. */ | |
244 | void | |
245 | xfs_inode_mark_healthy( | |
246 | struct xfs_inode *ip, | |
247 | unsigned int mask) | |
248 | { | |
249 | ASSERT(!(mask & ~XFS_SICK_INO_PRIMARY)); | |
250 | trace_xfs_inode_mark_healthy(ip, mask); | |
251 | ||
252 | spin_lock(&ip->i_flags_lock); | |
253 | ip->i_sick &= ~mask; | |
254 | ip->i_checked |= mask; | |
255 | spin_unlock(&ip->i_flags_lock); | |
256 | } | |
257 | ||
258 | /* Sample which parts of an inode are unhealthy. */ | |
259 | void | |
260 | xfs_inode_measure_sickness( | |
261 | struct xfs_inode *ip, | |
262 | unsigned int *sick, | |
263 | unsigned int *checked) | |
264 | { | |
265 | spin_lock(&ip->i_flags_lock); | |
266 | *sick = ip->i_sick; | |
267 | *checked = ip->i_checked; | |
268 | spin_unlock(&ip->i_flags_lock); | |
269 | } | |
c23232d4 DW |
270 | |
271 | /* Mappings between internal sick masks and ioctl sick masks. */ | |
272 | ||
273 | struct ioctl_sick_map { | |
274 | unsigned int sick_mask; | |
275 | unsigned int ioctl_mask; | |
276 | }; | |
277 | ||
278 | static const struct ioctl_sick_map fs_map[] = { | |
279 | { XFS_SICK_FS_COUNTERS, XFS_FSOP_GEOM_SICK_COUNTERS}, | |
280 | { XFS_SICK_FS_UQUOTA, XFS_FSOP_GEOM_SICK_UQUOTA }, | |
281 | { XFS_SICK_FS_GQUOTA, XFS_FSOP_GEOM_SICK_GQUOTA }, | |
282 | { XFS_SICK_FS_PQUOTA, XFS_FSOP_GEOM_SICK_PQUOTA }, | |
283 | { 0, 0 }, | |
284 | }; | |
285 | ||
286 | static const struct ioctl_sick_map rt_map[] = { | |
287 | { XFS_SICK_RT_BITMAP, XFS_FSOP_GEOM_SICK_RT_BITMAP }, | |
288 | { XFS_SICK_RT_SUMMARY, XFS_FSOP_GEOM_SICK_RT_SUMMARY }, | |
289 | { 0, 0 }, | |
290 | }; | |
291 | ||
292 | static inline void | |
293 | xfgeo_health_tick( | |
294 | struct xfs_fsop_geom *geo, | |
295 | unsigned int sick, | |
296 | unsigned int checked, | |
297 | const struct ioctl_sick_map *m) | |
298 | { | |
299 | if (checked & m->sick_mask) | |
300 | geo->checked |= m->ioctl_mask; | |
301 | if (sick & m->sick_mask) | |
302 | geo->sick |= m->ioctl_mask; | |
303 | } | |
304 | ||
305 | /* Fill out fs geometry health info. */ | |
306 | void | |
307 | xfs_fsop_geom_health( | |
308 | struct xfs_mount *mp, | |
309 | struct xfs_fsop_geom *geo) | |
310 | { | |
311 | const struct ioctl_sick_map *m; | |
312 | unsigned int sick; | |
313 | unsigned int checked; | |
314 | ||
315 | geo->sick = 0; | |
316 | geo->checked = 0; | |
317 | ||
318 | xfs_fs_measure_sickness(mp, &sick, &checked); | |
319 | for (m = fs_map; m->sick_mask; m++) | |
320 | xfgeo_health_tick(geo, sick, checked, m); | |
321 | ||
322 | xfs_rt_measure_sickness(mp, &sick, &checked); | |
323 | for (m = rt_map; m->sick_mask; m++) | |
324 | xfgeo_health_tick(geo, sick, checked, m); | |
325 | } | |
1302c6a2 DW |
326 | |
327 | static const struct ioctl_sick_map ag_map[] = { | |
328 | { XFS_SICK_AG_SB, XFS_AG_GEOM_SICK_SB }, | |
329 | { XFS_SICK_AG_AGF, XFS_AG_GEOM_SICK_AGF }, | |
330 | { XFS_SICK_AG_AGFL, XFS_AG_GEOM_SICK_AGFL }, | |
331 | { XFS_SICK_AG_AGI, XFS_AG_GEOM_SICK_AGI }, | |
332 | { XFS_SICK_AG_BNOBT, XFS_AG_GEOM_SICK_BNOBT }, | |
333 | { XFS_SICK_AG_CNTBT, XFS_AG_GEOM_SICK_CNTBT }, | |
334 | { XFS_SICK_AG_INOBT, XFS_AG_GEOM_SICK_INOBT }, | |
335 | { XFS_SICK_AG_FINOBT, XFS_AG_GEOM_SICK_FINOBT }, | |
336 | { XFS_SICK_AG_RMAPBT, XFS_AG_GEOM_SICK_RMAPBT }, | |
337 | { XFS_SICK_AG_REFCNTBT, XFS_AG_GEOM_SICK_REFCNTBT }, | |
338 | { 0, 0 }, | |
339 | }; | |
340 | ||
341 | /* Fill out ag geometry health info. */ | |
342 | void | |
343 | xfs_ag_geom_health( | |
344 | struct xfs_perag *pag, | |
345 | struct xfs_ag_geometry *ageo) | |
346 | { | |
347 | const struct ioctl_sick_map *m; | |
348 | unsigned int sick; | |
349 | unsigned int checked; | |
350 | ||
351 | ageo->ag_sick = 0; | |
352 | ageo->ag_checked = 0; | |
353 | ||
354 | xfs_ag_measure_sickness(pag, &sick, &checked); | |
355 | for (m = ag_map; m->sick_mask; m++) { | |
356 | if (checked & m->sick_mask) | |
357 | ageo->ag_checked |= m->ioctl_mask; | |
358 | if (sick & m->sick_mask) | |
359 | ageo->ag_sick |= m->ioctl_mask; | |
360 | } | |
361 | } | |
89d139d5 DW |
362 | |
363 | static const struct ioctl_sick_map ino_map[] = { | |
364 | { XFS_SICK_INO_CORE, XFS_BS_SICK_INODE }, | |
365 | { XFS_SICK_INO_BMBTD, XFS_BS_SICK_BMBTD }, | |
366 | { XFS_SICK_INO_BMBTA, XFS_BS_SICK_BMBTA }, | |
367 | { XFS_SICK_INO_BMBTC, XFS_BS_SICK_BMBTC }, | |
368 | { XFS_SICK_INO_DIR, XFS_BS_SICK_DIR }, | |
369 | { XFS_SICK_INO_XATTR, XFS_BS_SICK_XATTR }, | |
370 | { XFS_SICK_INO_SYMLINK, XFS_BS_SICK_SYMLINK }, | |
371 | { XFS_SICK_INO_PARENT, XFS_BS_SICK_PARENT }, | |
372 | { 0, 0 }, | |
373 | }; | |
374 | ||
375 | /* Fill out bulkstat health info. */ | |
376 | void | |
377 | xfs_bulkstat_health( | |
378 | struct xfs_inode *ip, | |
7035f972 | 379 | struct xfs_bulkstat *bs) |
89d139d5 DW |
380 | { |
381 | const struct ioctl_sick_map *m; | |
382 | unsigned int sick; | |
383 | unsigned int checked; | |
384 | ||
385 | bs->bs_sick = 0; | |
386 | bs->bs_checked = 0; | |
387 | ||
388 | xfs_inode_measure_sickness(ip, &sick, &checked); | |
389 | for (m = ino_map; m->sick_mask; m++) { | |
390 | if (checked & m->sick_mask) | |
391 | bs->bs_checked |= m->ioctl_mask; | |
392 | if (sick & m->sick_mask) | |
393 | bs->bs_sick |= m->ioctl_mask; | |
394 | } | |
395 | } |