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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
5880f2d7 DW |
2 | /* |
3 | * Copyright (C) 2016 Oracle. All Rights Reserved. | |
5880f2d7 | 4 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
5880f2d7 DW |
5 | */ |
6 | #include "xfs.h" | |
7 | #include "xfs_fs.h" | |
8 | #include "xfs_format.h" | |
9 | #include "xfs_log_format.h" | |
10 | #include "xfs_trans_resv.h" | |
9e88b5d8 | 11 | #include "xfs_bit.h" |
b31c2bdc | 12 | #include "xfs_shared.h" |
5880f2d7 | 13 | #include "xfs_mount.h" |
9c194644 | 14 | #include "xfs_defer.h" |
5880f2d7 DW |
15 | #include "xfs_trans.h" |
16 | #include "xfs_trans_priv.h" | |
5880f2d7 DW |
17 | #include "xfs_rmap_item.h" |
18 | #include "xfs_log.h" | |
9c194644 | 19 | #include "xfs_rmap.h" |
a5155b87 | 20 | #include "xfs_error.h" |
07590a9d | 21 | #include "xfs_log_priv.h" |
86ffa471 | 22 | #include "xfs_log_recover.h" |
c13418e8 | 23 | #include "xfs_ag.h" |
5880f2d7 | 24 | |
182696fb DW |
25 | struct kmem_cache *xfs_rui_cache; |
26 | struct kmem_cache *xfs_rud_cache; | |
5880f2d7 | 27 | |
cba0ccac DW |
28 | static const struct xfs_item_ops xfs_rui_item_ops; |
29 | ||
5880f2d7 DW |
30 | static inline struct xfs_rui_log_item *RUI_ITEM(struct xfs_log_item *lip) |
31 | { | |
32 | return container_of(lip, struct xfs_rui_log_item, rui_item); | |
33 | } | |
34 | ||
07590a9d | 35 | STATIC void |
5880f2d7 DW |
36 | xfs_rui_item_free( |
37 | struct xfs_rui_log_item *ruip) | |
38 | { | |
c230a4a8 | 39 | kmem_free(ruip->rui_item.li_lv_shadow); |
5880f2d7 DW |
40 | if (ruip->rui_format.rui_nextents > XFS_RUI_MAX_FAST_EXTENTS) |
41 | kmem_free(ruip); | |
42 | else | |
182696fb | 43 | kmem_cache_free(xfs_rui_cache, ruip); |
5880f2d7 DW |
44 | } |
45 | ||
0612d116 DC |
46 | /* |
47 | * Freeing the RUI requires that we remove it from the AIL if it has already | |
48 | * been placed there. However, the RUI may not yet have been placed in the AIL | |
49 | * when called by xfs_rui_release() from RUD processing due to the ordering of | |
50 | * committed vs unpin operations in bulk insert operations. Hence the reference | |
51 | * count to ensure only the last caller frees the RUI. | |
52 | */ | |
cba0ccac | 53 | STATIC void |
0612d116 DC |
54 | xfs_rui_release( |
55 | struct xfs_rui_log_item *ruip) | |
56 | { | |
57 | ASSERT(atomic_read(&ruip->rui_refcount) > 0); | |
3512fc1e DC |
58 | if (!atomic_dec_and_test(&ruip->rui_refcount)) |
59 | return; | |
60 | ||
61 | xfs_trans_ail_delete(&ruip->rui_item, 0); | |
62 | xfs_rui_item_free(ruip); | |
0612d116 DC |
63 | } |
64 | ||
5880f2d7 DW |
65 | STATIC void |
66 | xfs_rui_item_size( | |
67 | struct xfs_log_item *lip, | |
68 | int *nvecs, | |
69 | int *nbytes) | |
70 | { | |
cd00158c DW |
71 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); |
72 | ||
5880f2d7 | 73 | *nvecs += 1; |
cd00158c | 74 | *nbytes += xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents); |
5880f2d7 DW |
75 | } |
76 | ||
77 | /* | |
78 | * This is called to fill in the vector of log iovecs for the | |
79 | * given rui log item. We use only 1 iovec, and we point that | |
80 | * at the rui_log_format structure embedded in the rui item. | |
81 | * It is at this point that we assert that all of the extent | |
82 | * slots in the rui item have been filled. | |
83 | */ | |
84 | STATIC void | |
85 | xfs_rui_item_format( | |
86 | struct xfs_log_item *lip, | |
87 | struct xfs_log_vec *lv) | |
88 | { | |
89 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); | |
90 | struct xfs_log_iovec *vecp = NULL; | |
91 | ||
92 | ASSERT(atomic_read(&ruip->rui_next_extent) == | |
93 | ruip->rui_format.rui_nextents); | |
94 | ||
95 | ruip->rui_format.rui_type = XFS_LI_RUI; | |
96 | ruip->rui_format.rui_size = 1; | |
97 | ||
98 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUI_FORMAT, &ruip->rui_format, | |
cd00158c | 99 | xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents)); |
5880f2d7 DW |
100 | } |
101 | ||
5880f2d7 DW |
102 | /* |
103 | * The unpin operation is the last place an RUI is manipulated in the log. It is | |
104 | * either inserted in the AIL or aborted in the event of a log I/O error. In | |
105 | * either case, the RUI transaction has been successfully committed to make it | |
106 | * this far. Therefore, we expect whoever committed the RUI to either construct | |
107 | * and commit the RUD or drop the RUD's reference in the event of error. Simply | |
108 | * drop the log's RUI reference now that the log is done with it. | |
109 | */ | |
110 | STATIC void | |
111 | xfs_rui_item_unpin( | |
112 | struct xfs_log_item *lip, | |
113 | int remove) | |
114 | { | |
115 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); | |
116 | ||
117 | xfs_rui_release(ruip); | |
118 | } | |
119 | ||
5880f2d7 DW |
120 | /* |
121 | * The RUI has been either committed or aborted if the transaction has been | |
122 | * cancelled. If the transaction was cancelled, an RUD isn't going to be | |
123 | * constructed and thus we free the RUI here directly. | |
124 | */ | |
125 | STATIC void | |
ddf92053 | 126 | xfs_rui_item_release( |
5880f2d7 DW |
127 | struct xfs_log_item *lip) |
128 | { | |
ddf92053 | 129 | xfs_rui_release(RUI_ITEM(lip)); |
5880f2d7 DW |
130 | } |
131 | ||
5880f2d7 DW |
132 | /* |
133 | * Allocate and initialize an rui item with the given number of extents. | |
134 | */ | |
07590a9d | 135 | STATIC struct xfs_rui_log_item * |
5880f2d7 DW |
136 | xfs_rui_init( |
137 | struct xfs_mount *mp, | |
138 | uint nextents) | |
139 | ||
140 | { | |
141 | struct xfs_rui_log_item *ruip; | |
5880f2d7 DW |
142 | |
143 | ASSERT(nextents > 0); | |
cd00158c | 144 | if (nextents > XFS_RUI_MAX_FAST_EXTENTS) |
707e0dda | 145 | ruip = kmem_zalloc(xfs_rui_log_item_sizeof(nextents), 0); |
cd00158c | 146 | else |
182696fb | 147 | ruip = kmem_cache_zalloc(xfs_rui_cache, |
32a2b11f | 148 | GFP_KERNEL | __GFP_NOFAIL); |
5880f2d7 DW |
149 | |
150 | xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops); | |
151 | ruip->rui_format.rui_nextents = nextents; | |
152 | ruip->rui_format.rui_id = (uintptr_t)(void *)ruip; | |
153 | atomic_set(&ruip->rui_next_extent, 0); | |
154 | atomic_set(&ruip->rui_refcount, 2); | |
155 | ||
156 | return ruip; | |
157 | } | |
158 | ||
5880f2d7 DW |
159 | static inline struct xfs_rud_log_item *RUD_ITEM(struct xfs_log_item *lip) |
160 | { | |
161 | return container_of(lip, struct xfs_rud_log_item, rud_item); | |
162 | } | |
163 | ||
5880f2d7 DW |
164 | STATIC void |
165 | xfs_rud_item_size( | |
166 | struct xfs_log_item *lip, | |
167 | int *nvecs, | |
168 | int *nbytes) | |
169 | { | |
170 | *nvecs += 1; | |
722e2517 | 171 | *nbytes += sizeof(struct xfs_rud_log_format); |
5880f2d7 DW |
172 | } |
173 | ||
174 | /* | |
175 | * This is called to fill in the vector of log iovecs for the | |
176 | * given rud log item. We use only 1 iovec, and we point that | |
177 | * at the rud_log_format structure embedded in the rud item. | |
178 | * It is at this point that we assert that all of the extent | |
179 | * slots in the rud item have been filled. | |
180 | */ | |
181 | STATIC void | |
182 | xfs_rud_item_format( | |
183 | struct xfs_log_item *lip, | |
184 | struct xfs_log_vec *lv) | |
185 | { | |
186 | struct xfs_rud_log_item *rudp = RUD_ITEM(lip); | |
187 | struct xfs_log_iovec *vecp = NULL; | |
188 | ||
5880f2d7 DW |
189 | rudp->rud_format.rud_type = XFS_LI_RUD; |
190 | rudp->rud_format.rud_size = 1; | |
191 | ||
192 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUD_FORMAT, &rudp->rud_format, | |
722e2517 | 193 | sizeof(struct xfs_rud_log_format)); |
5880f2d7 DW |
194 | } |
195 | ||
5880f2d7 DW |
196 | /* |
197 | * The RUD is either committed or aborted if the transaction is cancelled. If | |
198 | * the transaction is cancelled, drop our reference to the RUI and free the | |
199 | * RUD. | |
200 | */ | |
201 | STATIC void | |
ddf92053 | 202 | xfs_rud_item_release( |
5880f2d7 DW |
203 | struct xfs_log_item *lip) |
204 | { | |
205 | struct xfs_rud_log_item *rudp = RUD_ITEM(lip); | |
206 | ||
ddf92053 | 207 | xfs_rui_release(rudp->rud_ruip); |
c230a4a8 | 208 | kmem_free(rudp->rud_item.li_lv_shadow); |
182696fb | 209 | kmem_cache_free(xfs_rud_cache, rudp); |
5880f2d7 DW |
210 | } |
211 | ||
c23ab603 DC |
212 | static struct xfs_log_item * |
213 | xfs_rud_item_intent( | |
214 | struct xfs_log_item *lip) | |
215 | { | |
216 | return &RUD_ITEM(lip)->rud_ruip->rui_item; | |
217 | } | |
218 | ||
5880f2d7 | 219 | static const struct xfs_item_ops xfs_rud_item_ops = { |
f5b81200 DC |
220 | .flags = XFS_ITEM_RELEASE_WHEN_COMMITTED | |
221 | XFS_ITEM_INTENT_DONE, | |
5880f2d7 DW |
222 | .iop_size = xfs_rud_item_size, |
223 | .iop_format = xfs_rud_item_format, | |
ddf92053 | 224 | .iop_release = xfs_rud_item_release, |
c23ab603 | 225 | .iop_intent = xfs_rud_item_intent, |
5880f2d7 DW |
226 | }; |
227 | ||
3cfce1e3 | 228 | static struct xfs_rud_log_item * |
60883447 CH |
229 | xfs_trans_get_rud( |
230 | struct xfs_trans *tp, | |
722e2517 | 231 | struct xfs_rui_log_item *ruip) |
5880f2d7 | 232 | { |
60883447 | 233 | struct xfs_rud_log_item *rudp; |
5880f2d7 | 234 | |
182696fb | 235 | rudp = kmem_cache_zalloc(xfs_rud_cache, GFP_KERNEL | __GFP_NOFAIL); |
60883447 CH |
236 | xfs_log_item_init(tp->t_mountp, &rudp->rud_item, XFS_LI_RUD, |
237 | &xfs_rud_item_ops); | |
5880f2d7 | 238 | rudp->rud_ruip = ruip; |
5880f2d7 DW |
239 | rudp->rud_format.rud_rui_id = ruip->rui_format.rui_id; |
240 | ||
60883447 | 241 | xfs_trans_add_item(tp, &rudp->rud_item); |
5880f2d7 DW |
242 | return rudp; |
243 | } | |
9e88b5d8 | 244 | |
3cfce1e3 CH |
245 | /* Set the map extent flags for this reverse mapping. */ |
246 | static void | |
247 | xfs_trans_set_rmap_flags( | |
ffaa196f | 248 | struct xfs_map_extent *map, |
3cfce1e3 CH |
249 | enum xfs_rmap_intent_type type, |
250 | int whichfork, | |
251 | xfs_exntst_t state) | |
252 | { | |
ffaa196f | 253 | map->me_flags = 0; |
3cfce1e3 | 254 | if (state == XFS_EXT_UNWRITTEN) |
ffaa196f | 255 | map->me_flags |= XFS_RMAP_EXTENT_UNWRITTEN; |
3cfce1e3 | 256 | if (whichfork == XFS_ATTR_FORK) |
ffaa196f | 257 | map->me_flags |= XFS_RMAP_EXTENT_ATTR_FORK; |
3cfce1e3 CH |
258 | switch (type) { |
259 | case XFS_RMAP_MAP: | |
ffaa196f | 260 | map->me_flags |= XFS_RMAP_EXTENT_MAP; |
3cfce1e3 CH |
261 | break; |
262 | case XFS_RMAP_MAP_SHARED: | |
ffaa196f | 263 | map->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED; |
3cfce1e3 CH |
264 | break; |
265 | case XFS_RMAP_UNMAP: | |
ffaa196f | 266 | map->me_flags |= XFS_RMAP_EXTENT_UNMAP; |
3cfce1e3 CH |
267 | break; |
268 | case XFS_RMAP_UNMAP_SHARED: | |
ffaa196f | 269 | map->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED; |
3cfce1e3 CH |
270 | break; |
271 | case XFS_RMAP_CONVERT: | |
ffaa196f | 272 | map->me_flags |= XFS_RMAP_EXTENT_CONVERT; |
3cfce1e3 CH |
273 | break; |
274 | case XFS_RMAP_CONVERT_SHARED: | |
ffaa196f | 275 | map->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED; |
3cfce1e3 CH |
276 | break; |
277 | case XFS_RMAP_ALLOC: | |
ffaa196f | 278 | map->me_flags |= XFS_RMAP_EXTENT_ALLOC; |
3cfce1e3 CH |
279 | break; |
280 | case XFS_RMAP_FREE: | |
ffaa196f | 281 | map->me_flags |= XFS_RMAP_EXTENT_FREE; |
3cfce1e3 CH |
282 | break; |
283 | default: | |
284 | ASSERT(0); | |
285 | } | |
286 | } | |
287 | ||
288 | /* | |
289 | * Finish an rmap update and log it to the RUD. Note that the transaction is | |
290 | * marked dirty regardless of whether the rmap update succeeds or fails to | |
291 | * support the RUI/RUD lifecycle rules. | |
292 | */ | |
293 | static int | |
294 | xfs_trans_log_finish_rmap_update( | |
295 | struct xfs_trans *tp, | |
296 | struct xfs_rud_log_item *rudp, | |
1534328b | 297 | struct xfs_rmap_intent *ri, |
3cfce1e3 CH |
298 | struct xfs_btree_cur **pcur) |
299 | { | |
300 | int error; | |
301 | ||
1534328b | 302 | error = xfs_rmap_finish_one(tp, ri, pcur); |
3cfce1e3 CH |
303 | |
304 | /* | |
305 | * Mark the transaction dirty, even on error. This ensures the | |
306 | * transaction is aborted, which: | |
307 | * | |
308 | * 1.) releases the RUI and frees the RUD | |
309 | * 2.) shuts down the filesystem | |
310 | */ | |
bb7b1c9c | 311 | tp->t_flags |= XFS_TRANS_DIRTY | XFS_TRANS_HAS_INTENT_DONE; |
3cfce1e3 CH |
312 | set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags); |
313 | ||
314 | return error; | |
315 | } | |
316 | ||
317 | /* Sort rmap intents by AG. */ | |
318 | static int | |
319 | xfs_rmap_update_diff_items( | |
320 | void *priv, | |
4f0f586b ST |
321 | const struct list_head *a, |
322 | const struct list_head *b) | |
3cfce1e3 | 323 | { |
3cfce1e3 CH |
324 | struct xfs_rmap_intent *ra; |
325 | struct xfs_rmap_intent *rb; | |
326 | ||
327 | ra = container_of(a, struct xfs_rmap_intent, ri_list); | |
328 | rb = container_of(b, struct xfs_rmap_intent, ri_list); | |
c13418e8 DW |
329 | |
330 | return ra->ri_pag->pag_agno - rb->ri_pag->pag_agno; | |
3cfce1e3 CH |
331 | } |
332 | ||
3cfce1e3 CH |
333 | /* Log rmap updates in the intent item. */ |
334 | STATIC void | |
335 | xfs_rmap_update_log_item( | |
336 | struct xfs_trans *tp, | |
c1f09188 | 337 | struct xfs_rui_log_item *ruip, |
ffaa196f | 338 | struct xfs_rmap_intent *ri) |
3cfce1e3 | 339 | { |
3cfce1e3 CH |
340 | uint next_extent; |
341 | struct xfs_map_extent *map; | |
342 | ||
3cfce1e3 CH |
343 | tp->t_flags |= XFS_TRANS_DIRTY; |
344 | set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags); | |
345 | ||
346 | /* | |
347 | * atomic_inc_return gives us the value after the increment; | |
348 | * we want to use it as an array index so we need to subtract 1 from | |
349 | * it. | |
350 | */ | |
351 | next_extent = atomic_inc_return(&ruip->rui_next_extent) - 1; | |
352 | ASSERT(next_extent < ruip->rui_format.rui_nextents); | |
353 | map = &ruip->rui_format.rui_extents[next_extent]; | |
ffaa196f DW |
354 | map->me_owner = ri->ri_owner; |
355 | map->me_startblock = ri->ri_bmap.br_startblock; | |
356 | map->me_startoff = ri->ri_bmap.br_startoff; | |
357 | map->me_len = ri->ri_bmap.br_blockcount; | |
358 | xfs_trans_set_rmap_flags(map, ri->ri_type, ri->ri_whichfork, | |
359 | ri->ri_bmap.br_state); | |
3cfce1e3 CH |
360 | } |
361 | ||
13a83333 | 362 | static struct xfs_log_item * |
c1f09188 CH |
363 | xfs_rmap_update_create_intent( |
364 | struct xfs_trans *tp, | |
365 | struct list_head *items, | |
d367a868 CH |
366 | unsigned int count, |
367 | bool sort) | |
c1f09188 CH |
368 | { |
369 | struct xfs_mount *mp = tp->t_mountp; | |
370 | struct xfs_rui_log_item *ruip = xfs_rui_init(mp, count); | |
ffaa196f | 371 | struct xfs_rmap_intent *ri; |
c1f09188 CH |
372 | |
373 | ASSERT(count > 0); | |
374 | ||
375 | xfs_trans_add_item(tp, &ruip->rui_item); | |
d367a868 CH |
376 | if (sort) |
377 | list_sort(mp, items, xfs_rmap_update_diff_items); | |
ffaa196f DW |
378 | list_for_each_entry(ri, items, ri_list) |
379 | xfs_rmap_update_log_item(tp, ruip, ri); | |
13a83333 | 380 | return &ruip->rui_item; |
c1f09188 CH |
381 | } |
382 | ||
3cfce1e3 | 383 | /* Get an RUD so we can process all the deferred rmap updates. */ |
f09d167c | 384 | static struct xfs_log_item * |
3cfce1e3 CH |
385 | xfs_rmap_update_create_done( |
386 | struct xfs_trans *tp, | |
13a83333 | 387 | struct xfs_log_item *intent, |
3cfce1e3 CH |
388 | unsigned int count) |
389 | { | |
f09d167c | 390 | return &xfs_trans_get_rud(tp, RUI_ITEM(intent))->rud_item; |
3cfce1e3 CH |
391 | } |
392 | ||
c13418e8 DW |
393 | /* Take a passive ref to the AG containing the space we're rmapping. */ |
394 | void | |
395 | xfs_rmap_update_get_group( | |
396 | struct xfs_mount *mp, | |
397 | struct xfs_rmap_intent *ri) | |
398 | { | |
399 | xfs_agnumber_t agno; | |
400 | ||
401 | agno = XFS_FSB_TO_AGNO(mp, ri->ri_bmap.br_startblock); | |
d5c88131 | 402 | ri->ri_pag = xfs_perag_intent_get(mp, agno); |
c13418e8 DW |
403 | } |
404 | ||
405 | /* Release a passive AG ref after finishing rmapping work. */ | |
406 | static inline void | |
407 | xfs_rmap_update_put_group( | |
408 | struct xfs_rmap_intent *ri) | |
409 | { | |
d5c88131 | 410 | xfs_perag_intent_put(ri->ri_pag); |
c13418e8 DW |
411 | } |
412 | ||
3cfce1e3 CH |
413 | /* Process a deferred rmap update. */ |
414 | STATIC int | |
415 | xfs_rmap_update_finish_item( | |
416 | struct xfs_trans *tp, | |
f09d167c | 417 | struct xfs_log_item *done, |
3cfce1e3 | 418 | struct list_head *item, |
3ec1b26c | 419 | struct xfs_btree_cur **state) |
3cfce1e3 | 420 | { |
ffaa196f | 421 | struct xfs_rmap_intent *ri; |
3cfce1e3 CH |
422 | int error; |
423 | ||
ffaa196f DW |
424 | ri = container_of(item, struct xfs_rmap_intent, ri_list); |
425 | ||
426 | error = xfs_trans_log_finish_rmap_update(tp, RUD_ITEM(done), ri, | |
3ec1b26c | 427 | state); |
c13418e8 DW |
428 | |
429 | xfs_rmap_update_put_group(ri); | |
ffaa196f | 430 | kmem_cache_free(xfs_rmap_intent_cache, ri); |
3cfce1e3 CH |
431 | return error; |
432 | } | |
433 | ||
3cfce1e3 CH |
434 | /* Abort all pending RUIs. */ |
435 | STATIC void | |
436 | xfs_rmap_update_abort_intent( | |
13a83333 | 437 | struct xfs_log_item *intent) |
3cfce1e3 | 438 | { |
13a83333 | 439 | xfs_rui_release(RUI_ITEM(intent)); |
3cfce1e3 CH |
440 | } |
441 | ||
442 | /* Cancel a deferred rmap update. */ | |
443 | STATIC void | |
444 | xfs_rmap_update_cancel_item( | |
445 | struct list_head *item) | |
446 | { | |
ffaa196f | 447 | struct xfs_rmap_intent *ri; |
3cfce1e3 | 448 | |
ffaa196f | 449 | ri = container_of(item, struct xfs_rmap_intent, ri_list); |
c13418e8 DW |
450 | |
451 | xfs_rmap_update_put_group(ri); | |
ffaa196f | 452 | kmem_cache_free(xfs_rmap_intent_cache, ri); |
3cfce1e3 CH |
453 | } |
454 | ||
455 | const struct xfs_defer_op_type xfs_rmap_update_defer_type = { | |
456 | .max_items = XFS_RUI_MAX_FAST_EXTENTS, | |
3cfce1e3 CH |
457 | .create_intent = xfs_rmap_update_create_intent, |
458 | .abort_intent = xfs_rmap_update_abort_intent, | |
3cfce1e3 CH |
459 | .create_done = xfs_rmap_update_create_done, |
460 | .finish_item = xfs_rmap_update_finish_item, | |
3ec1b26c | 461 | .finish_cleanup = xfs_rmap_finish_one_cleanup, |
3cfce1e3 CH |
462 | .cancel_item = xfs_rmap_update_cancel_item, |
463 | }; | |
464 | ||
dda7ba65 DW |
465 | /* Is this recovered RUI ok? */ |
466 | static inline bool | |
467 | xfs_rui_validate_map( | |
468 | struct xfs_mount *mp, | |
ffaa196f | 469 | struct xfs_map_extent *map) |
dda7ba65 | 470 | { |
38c26bfd | 471 | if (!xfs_has_rmapbt(mp)) |
da5de110 DW |
472 | return false; |
473 | ||
ffaa196f | 474 | if (map->me_flags & ~XFS_RMAP_EXTENT_FLAGS) |
c447ad62 | 475 | return false; |
dda7ba65 | 476 | |
ffaa196f | 477 | switch (map->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { |
dda7ba65 DW |
478 | case XFS_RMAP_EXTENT_MAP: |
479 | case XFS_RMAP_EXTENT_MAP_SHARED: | |
480 | case XFS_RMAP_EXTENT_UNMAP: | |
481 | case XFS_RMAP_EXTENT_UNMAP_SHARED: | |
482 | case XFS_RMAP_EXTENT_CONVERT: | |
483 | case XFS_RMAP_EXTENT_CONVERT_SHARED: | |
484 | case XFS_RMAP_EXTENT_ALLOC: | |
485 | case XFS_RMAP_EXTENT_FREE: | |
dda7ba65 DW |
486 | break; |
487 | default: | |
c447ad62 | 488 | return false; |
dda7ba65 | 489 | } |
c447ad62 | 490 | |
ffaa196f DW |
491 | if (!XFS_RMAP_NON_INODE_OWNER(map->me_owner) && |
492 | !xfs_verify_ino(mp, map->me_owner)) | |
c447ad62 DW |
493 | return false; |
494 | ||
ffaa196f | 495 | if (!xfs_verify_fileext(mp, map->me_startoff, map->me_len)) |
c447ad62 DW |
496 | return false; |
497 | ||
ffaa196f | 498 | return xfs_verify_fsbext(mp, map->me_startblock, map->me_len); |
dda7ba65 DW |
499 | } |
500 | ||
9e88b5d8 DW |
501 | /* |
502 | * Process an rmap update intent item that was recovered from the log. | |
503 | * We need to update the rmapbt. | |
504 | */ | |
cba0ccac | 505 | STATIC int |
96b60f82 DW |
506 | xfs_rui_item_recover( |
507 | struct xfs_log_item *lip, | |
e6fff81e | 508 | struct list_head *capture_list) |
9e88b5d8 | 509 | { |
96b60f82 | 510 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); |
9c194644 | 511 | struct xfs_rud_log_item *rudp; |
9c194644 DW |
512 | struct xfs_trans *tp; |
513 | struct xfs_btree_cur *rcur = NULL; | |
d86142dd | 514 | struct xfs_mount *mp = lip->li_log->l_mp; |
96b60f82 | 515 | int i; |
96b60f82 | 516 | int error = 0; |
9e88b5d8 | 517 | |
9e88b5d8 DW |
518 | /* |
519 | * First check the validity of the extents described by the | |
520 | * RUI. If any are bad, then assume that all are bad and | |
521 | * just toss the RUI. | |
522 | */ | |
523 | for (i = 0; i < ruip->rui_format.rui_nextents; i++) { | |
dda7ba65 DW |
524 | if (!xfs_rui_validate_map(mp, |
525 | &ruip->rui_format.rui_extents[i])) { | |
526 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, | |
527 | &ruip->rui_format, | |
528 | sizeof(ruip->rui_format)); | |
895e196f | 529 | return -EFSCORRUPTED; |
dda7ba65 | 530 | } |
9e88b5d8 DW |
531 | } |
532 | ||
b31c2bdc DW |
533 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, |
534 | mp->m_rmap_maxlevels, 0, XFS_TRANS_RESERVE, &tp); | |
9c194644 DW |
535 | if (error) |
536 | return error; | |
722e2517 | 537 | rudp = xfs_trans_get_rud(tp, ruip); |
9c194644 DW |
538 | |
539 | for (i = 0; i < ruip->rui_format.rui_nextents; i++) { | |
1534328b DW |
540 | struct xfs_rmap_intent fake = { }; |
541 | struct xfs_map_extent *map; | |
542 | ||
543 | map = &ruip->rui_format.rui_extents[i]; | |
544 | switch (map->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { | |
9c194644 | 545 | case XFS_RMAP_EXTENT_MAP: |
1534328b | 546 | fake.ri_type = XFS_RMAP_MAP; |
9c194644 | 547 | break; |
ceeb9c83 | 548 | case XFS_RMAP_EXTENT_MAP_SHARED: |
1534328b | 549 | fake.ri_type = XFS_RMAP_MAP_SHARED; |
ceeb9c83 | 550 | break; |
9c194644 | 551 | case XFS_RMAP_EXTENT_UNMAP: |
1534328b | 552 | fake.ri_type = XFS_RMAP_UNMAP; |
9c194644 | 553 | break; |
ceeb9c83 | 554 | case XFS_RMAP_EXTENT_UNMAP_SHARED: |
1534328b | 555 | fake.ri_type = XFS_RMAP_UNMAP_SHARED; |
ceeb9c83 | 556 | break; |
9c194644 | 557 | case XFS_RMAP_EXTENT_CONVERT: |
1534328b | 558 | fake.ri_type = XFS_RMAP_CONVERT; |
9c194644 | 559 | break; |
3f165b33 | 560 | case XFS_RMAP_EXTENT_CONVERT_SHARED: |
1534328b | 561 | fake.ri_type = XFS_RMAP_CONVERT_SHARED; |
3f165b33 | 562 | break; |
9c194644 | 563 | case XFS_RMAP_EXTENT_ALLOC: |
1534328b | 564 | fake.ri_type = XFS_RMAP_ALLOC; |
9c194644 DW |
565 | break; |
566 | case XFS_RMAP_EXTENT_FREE: | |
1534328b | 567 | fake.ri_type = XFS_RMAP_FREE; |
9c194644 DW |
568 | break; |
569 | default: | |
950f0d50 DW |
570 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, |
571 | &ruip->rui_format, | |
572 | sizeof(ruip->rui_format)); | |
9c194644 DW |
573 | error = -EFSCORRUPTED; |
574 | goto abort_error; | |
575 | } | |
1534328b DW |
576 | |
577 | fake.ri_owner = map->me_owner; | |
578 | fake.ri_whichfork = (map->me_flags & XFS_RMAP_EXTENT_ATTR_FORK) ? | |
579 | XFS_ATTR_FORK : XFS_DATA_FORK; | |
580 | fake.ri_bmap.br_startblock = map->me_startblock; | |
581 | fake.ri_bmap.br_startoff = map->me_startoff; | |
582 | fake.ri_bmap.br_blockcount = map->me_len; | |
583 | fake.ri_bmap.br_state = (map->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ? | |
584 | XFS_EXT_UNWRITTEN : XFS_EXT_NORM; | |
585 | ||
c13418e8 | 586 | xfs_rmap_update_get_group(mp, &fake); |
1534328b DW |
587 | error = xfs_trans_log_finish_rmap_update(tp, rudp, &fake, |
588 | &rcur); | |
43059d54 DW |
589 | if (error == -EFSCORRUPTED) |
590 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, | |
1534328b | 591 | map, sizeof(*map)); |
c13418e8 | 592 | xfs_rmap_update_put_group(&fake); |
9c194644 DW |
593 | if (error) |
594 | goto abort_error; | |
595 | ||
596 | } | |
597 | ||
598 | xfs_rmap_finish_one_cleanup(tp, rcur, error); | |
512edfac | 599 | return xfs_defer_ops_capture_and_commit(tp, capture_list); |
9c194644 DW |
600 | |
601 | abort_error: | |
602 | xfs_rmap_finish_one_cleanup(tp, rcur, error); | |
603 | xfs_trans_cancel(tp); | |
9e88b5d8 DW |
604 | return error; |
605 | } | |
86ffa471 | 606 | |
154c733a DW |
607 | STATIC bool |
608 | xfs_rui_item_match( | |
609 | struct xfs_log_item *lip, | |
610 | uint64_t intent_id) | |
611 | { | |
612 | return RUI_ITEM(lip)->rui_format.rui_id == intent_id; | |
613 | } | |
614 | ||
4e919af7 DW |
615 | /* Relog an intent item to push the log tail forward. */ |
616 | static struct xfs_log_item * | |
617 | xfs_rui_item_relog( | |
618 | struct xfs_log_item *intent, | |
619 | struct xfs_trans *tp) | |
620 | { | |
621 | struct xfs_rud_log_item *rudp; | |
622 | struct xfs_rui_log_item *ruip; | |
ffaa196f | 623 | struct xfs_map_extent *map; |
4e919af7 DW |
624 | unsigned int count; |
625 | ||
626 | count = RUI_ITEM(intent)->rui_format.rui_nextents; | |
ffaa196f | 627 | map = RUI_ITEM(intent)->rui_format.rui_extents; |
4e919af7 DW |
628 | |
629 | tp->t_flags |= XFS_TRANS_DIRTY; | |
630 | rudp = xfs_trans_get_rud(tp, RUI_ITEM(intent)); | |
631 | set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags); | |
632 | ||
633 | ruip = xfs_rui_init(tp->t_mountp, count); | |
ffaa196f | 634 | memcpy(ruip->rui_format.rui_extents, map, count * sizeof(*map)); |
4e919af7 DW |
635 | atomic_set(&ruip->rui_next_extent, count); |
636 | xfs_trans_add_item(tp, &ruip->rui_item); | |
637 | set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags); | |
638 | return &ruip->rui_item; | |
639 | } | |
640 | ||
cba0ccac | 641 | static const struct xfs_item_ops xfs_rui_item_ops = { |
f5b81200 | 642 | .flags = XFS_ITEM_INTENT, |
cba0ccac DW |
643 | .iop_size = xfs_rui_item_size, |
644 | .iop_format = xfs_rui_item_format, | |
645 | .iop_unpin = xfs_rui_item_unpin, | |
646 | .iop_release = xfs_rui_item_release, | |
647 | .iop_recover = xfs_rui_item_recover, | |
154c733a | 648 | .iop_match = xfs_rui_item_match, |
4e919af7 | 649 | .iop_relog = xfs_rui_item_relog, |
cba0ccac DW |
650 | }; |
651 | ||
b45ca961 DW |
652 | static inline void |
653 | xfs_rui_copy_format( | |
654 | struct xfs_rui_log_format *dst, | |
655 | const struct xfs_rui_log_format *src) | |
656 | { | |
657 | unsigned int i; | |
658 | ||
659 | memcpy(dst, src, offsetof(struct xfs_rui_log_format, rui_extents)); | |
660 | ||
661 | for (i = 0; i < src->rui_nextents; i++) | |
662 | memcpy(&dst->rui_extents[i], &src->rui_extents[i], | |
663 | sizeof(struct xfs_map_extent)); | |
664 | } | |
665 | ||
07590a9d DW |
666 | /* |
667 | * This routine is called to create an in-core extent rmap update | |
668 | * item from the rui format structure which was logged on disk. | |
669 | * It allocates an in-core rui, copies the extents from the format | |
670 | * structure into it, and adds the rui to the AIL with the given | |
671 | * LSN. | |
672 | */ | |
673 | STATIC int | |
674 | xlog_recover_rui_commit_pass2( | |
675 | struct xlog *log, | |
676 | struct list_head *buffer_list, | |
677 | struct xlog_recover_item *item, | |
678 | xfs_lsn_t lsn) | |
679 | { | |
07590a9d DW |
680 | struct xfs_mount *mp = log->l_mp; |
681 | struct xfs_rui_log_item *ruip; | |
682 | struct xfs_rui_log_format *rui_formatp; | |
b45ca961 | 683 | size_t len; |
07590a9d DW |
684 | |
685 | rui_formatp = item->ri_buf[0].i_addr; | |
686 | ||
b45ca961 | 687 | if (item->ri_buf[0].i_len < xfs_rui_log_format_sizeof(0)) { |
950f0d50 DW |
688 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, |
689 | item->ri_buf[0].i_addr, item->ri_buf[0].i_len); | |
b45ca961 | 690 | return -EFSCORRUPTED; |
07590a9d | 691 | } |
b45ca961 DW |
692 | |
693 | len = xfs_rui_log_format_sizeof(rui_formatp->rui_nextents); | |
694 | if (item->ri_buf[0].i_len != len) { | |
950f0d50 DW |
695 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, |
696 | item->ri_buf[0].i_addr, item->ri_buf[0].i_len); | |
b45ca961 DW |
697 | return -EFSCORRUPTED; |
698 | } | |
699 | ||
700 | ruip = xfs_rui_init(mp, rui_formatp->rui_nextents); | |
701 | xfs_rui_copy_format(&ruip->rui_format, rui_formatp); | |
07590a9d | 702 | atomic_set(&ruip->rui_next_extent, rui_formatp->rui_nextents); |
07590a9d | 703 | /* |
86a37174 DW |
704 | * Insert the intent into the AIL directly and drop one reference so |
705 | * that finishing or canceling the work will drop the other. | |
07590a9d | 706 | */ |
86a37174 | 707 | xfs_trans_ail_insert(log->l_ailp, &ruip->rui_item, lsn); |
07590a9d DW |
708 | xfs_rui_release(ruip); |
709 | return 0; | |
710 | } | |
711 | ||
86ffa471 DW |
712 | const struct xlog_recover_item_ops xlog_rui_item_ops = { |
713 | .item_type = XFS_LI_RUI, | |
07590a9d | 714 | .commit_pass2 = xlog_recover_rui_commit_pass2, |
86ffa471 DW |
715 | }; |
716 | ||
07590a9d DW |
717 | /* |
718 | * This routine is called when an RUD format structure is found in a committed | |
719 | * transaction in the log. Its purpose is to cancel the corresponding RUI if it | |
720 | * was still in the log. To do this it searches the AIL for the RUI with an id | |
721 | * equal to that in the RUD format structure. If we find it we drop the RUD | |
722 | * reference, which removes the RUI from the AIL and frees it. | |
723 | */ | |
724 | STATIC int | |
725 | xlog_recover_rud_commit_pass2( | |
726 | struct xlog *log, | |
727 | struct list_head *buffer_list, | |
728 | struct xlog_recover_item *item, | |
729 | xfs_lsn_t lsn) | |
730 | { | |
731 | struct xfs_rud_log_format *rud_formatp; | |
07590a9d DW |
732 | |
733 | rud_formatp = item->ri_buf[0].i_addr; | |
921ed96b DW |
734 | if (item->ri_buf[0].i_len != sizeof(struct xfs_rud_log_format)) { |
735 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, | |
736 | rud_formatp, item->ri_buf[0].i_len); | |
737 | return -EFSCORRUPTED; | |
738 | } | |
07590a9d | 739 | |
154c733a | 740 | xlog_recover_release_intent(log, XFS_LI_RUI, rud_formatp->rud_rui_id); |
07590a9d DW |
741 | return 0; |
742 | } | |
743 | ||
86ffa471 DW |
744 | const struct xlog_recover_item_ops xlog_rud_item_ops = { |
745 | .item_type = XFS_LI_RUD, | |
07590a9d | 746 | .commit_pass2 = xlog_recover_rud_commit_pass2, |
86ffa471 | 747 | }; |