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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" |
5880f2d7 DW |
23 | |
24 | kmem_zone_t *xfs_rui_zone; | |
25 | kmem_zone_t *xfs_rud_zone; | |
26 | ||
cba0ccac DW |
27 | static const struct xfs_item_ops xfs_rui_item_ops; |
28 | ||
5880f2d7 DW |
29 | static inline struct xfs_rui_log_item *RUI_ITEM(struct xfs_log_item *lip) |
30 | { | |
31 | return container_of(lip, struct xfs_rui_log_item, rui_item); | |
32 | } | |
33 | ||
07590a9d | 34 | STATIC void |
5880f2d7 DW |
35 | xfs_rui_item_free( |
36 | struct xfs_rui_log_item *ruip) | |
37 | { | |
38 | if (ruip->rui_format.rui_nextents > XFS_RUI_MAX_FAST_EXTENTS) | |
39 | kmem_free(ruip); | |
40 | else | |
377bcd5f | 41 | kmem_cache_free(xfs_rui_zone, ruip); |
5880f2d7 DW |
42 | } |
43 | ||
0612d116 DC |
44 | /* |
45 | * Freeing the RUI requires that we remove it from the AIL if it has already | |
46 | * been placed there. However, the RUI may not yet have been placed in the AIL | |
47 | * when called by xfs_rui_release() from RUD processing due to the ordering of | |
48 | * committed vs unpin operations in bulk insert operations. Hence the reference | |
49 | * count to ensure only the last caller frees the RUI. | |
50 | */ | |
cba0ccac | 51 | STATIC void |
0612d116 DC |
52 | xfs_rui_release( |
53 | struct xfs_rui_log_item *ruip) | |
54 | { | |
55 | ASSERT(atomic_read(&ruip->rui_refcount) > 0); | |
56 | if (atomic_dec_and_test(&ruip->rui_refcount)) { | |
65587929 | 57 | xfs_trans_ail_delete(&ruip->rui_item, SHUTDOWN_LOG_IO_ERROR); |
0612d116 DC |
58 | xfs_rui_item_free(ruip); |
59 | } | |
60 | } | |
61 | ||
5880f2d7 DW |
62 | STATIC void |
63 | xfs_rui_item_size( | |
64 | struct xfs_log_item *lip, | |
65 | int *nvecs, | |
66 | int *nbytes) | |
67 | { | |
cd00158c DW |
68 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); |
69 | ||
5880f2d7 | 70 | *nvecs += 1; |
cd00158c | 71 | *nbytes += xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents); |
5880f2d7 DW |
72 | } |
73 | ||
74 | /* | |
75 | * This is called to fill in the vector of log iovecs for the | |
76 | * given rui log item. We use only 1 iovec, and we point that | |
77 | * at the rui_log_format structure embedded in the rui item. | |
78 | * It is at this point that we assert that all of the extent | |
79 | * slots in the rui item have been filled. | |
80 | */ | |
81 | STATIC void | |
82 | xfs_rui_item_format( | |
83 | struct xfs_log_item *lip, | |
84 | struct xfs_log_vec *lv) | |
85 | { | |
86 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); | |
87 | struct xfs_log_iovec *vecp = NULL; | |
88 | ||
89 | ASSERT(atomic_read(&ruip->rui_next_extent) == | |
90 | ruip->rui_format.rui_nextents); | |
91 | ||
92 | ruip->rui_format.rui_type = XFS_LI_RUI; | |
93 | ruip->rui_format.rui_size = 1; | |
94 | ||
95 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUI_FORMAT, &ruip->rui_format, | |
cd00158c | 96 | xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents)); |
5880f2d7 DW |
97 | } |
98 | ||
5880f2d7 DW |
99 | /* |
100 | * The unpin operation is the last place an RUI is manipulated in the log. It is | |
101 | * either inserted in the AIL or aborted in the event of a log I/O error. In | |
102 | * either case, the RUI transaction has been successfully committed to make it | |
103 | * this far. Therefore, we expect whoever committed the RUI to either construct | |
104 | * and commit the RUD or drop the RUD's reference in the event of error. Simply | |
105 | * drop the log's RUI reference now that the log is done with it. | |
106 | */ | |
107 | STATIC void | |
108 | xfs_rui_item_unpin( | |
109 | struct xfs_log_item *lip, | |
110 | int remove) | |
111 | { | |
112 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); | |
113 | ||
114 | xfs_rui_release(ruip); | |
115 | } | |
116 | ||
5880f2d7 DW |
117 | /* |
118 | * The RUI has been either committed or aborted if the transaction has been | |
119 | * cancelled. If the transaction was cancelled, an RUD isn't going to be | |
120 | * constructed and thus we free the RUI here directly. | |
121 | */ | |
122 | STATIC void | |
ddf92053 | 123 | xfs_rui_item_release( |
5880f2d7 DW |
124 | struct xfs_log_item *lip) |
125 | { | |
ddf92053 | 126 | xfs_rui_release(RUI_ITEM(lip)); |
5880f2d7 DW |
127 | } |
128 | ||
5880f2d7 DW |
129 | /* |
130 | * Allocate and initialize an rui item with the given number of extents. | |
131 | */ | |
07590a9d | 132 | STATIC struct xfs_rui_log_item * |
5880f2d7 DW |
133 | xfs_rui_init( |
134 | struct xfs_mount *mp, | |
135 | uint nextents) | |
136 | ||
137 | { | |
138 | struct xfs_rui_log_item *ruip; | |
5880f2d7 DW |
139 | |
140 | ASSERT(nextents > 0); | |
cd00158c | 141 | if (nextents > XFS_RUI_MAX_FAST_EXTENTS) |
707e0dda | 142 | ruip = kmem_zalloc(xfs_rui_log_item_sizeof(nextents), 0); |
cd00158c | 143 | else |
32a2b11f CM |
144 | ruip = kmem_cache_zalloc(xfs_rui_zone, |
145 | GFP_KERNEL | __GFP_NOFAIL); | |
5880f2d7 DW |
146 | |
147 | xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops); | |
148 | ruip->rui_format.rui_nextents = nextents; | |
149 | ruip->rui_format.rui_id = (uintptr_t)(void *)ruip; | |
150 | atomic_set(&ruip->rui_next_extent, 0); | |
151 | atomic_set(&ruip->rui_refcount, 2); | |
152 | ||
153 | return ruip; | |
154 | } | |
155 | ||
156 | /* | |
157 | * Copy an RUI format buffer from the given buf, and into the destination | |
158 | * RUI format structure. The RUI/RUD items were designed not to need any | |
159 | * special alignment handling. | |
160 | */ | |
07590a9d | 161 | STATIC int |
5880f2d7 DW |
162 | xfs_rui_copy_format( |
163 | struct xfs_log_iovec *buf, | |
164 | struct xfs_rui_log_format *dst_rui_fmt) | |
165 | { | |
166 | struct xfs_rui_log_format *src_rui_fmt; | |
167 | uint len; | |
168 | ||
169 | src_rui_fmt = buf->i_addr; | |
cd00158c | 170 | len = xfs_rui_log_format_sizeof(src_rui_fmt->rui_nextents); |
5880f2d7 | 171 | |
a5155b87 DW |
172 | if (buf->i_len != len) { |
173 | XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); | |
5880f2d7 | 174 | return -EFSCORRUPTED; |
a5155b87 | 175 | } |
5880f2d7 | 176 | |
cd00158c | 177 | memcpy(dst_rui_fmt, src_rui_fmt, len); |
5880f2d7 DW |
178 | return 0; |
179 | } | |
180 | ||
5880f2d7 DW |
181 | static inline struct xfs_rud_log_item *RUD_ITEM(struct xfs_log_item *lip) |
182 | { | |
183 | return container_of(lip, struct xfs_rud_log_item, rud_item); | |
184 | } | |
185 | ||
5880f2d7 DW |
186 | STATIC void |
187 | xfs_rud_item_size( | |
188 | struct xfs_log_item *lip, | |
189 | int *nvecs, | |
190 | int *nbytes) | |
191 | { | |
192 | *nvecs += 1; | |
722e2517 | 193 | *nbytes += sizeof(struct xfs_rud_log_format); |
5880f2d7 DW |
194 | } |
195 | ||
196 | /* | |
197 | * This is called to fill in the vector of log iovecs for the | |
198 | * given rud log item. We use only 1 iovec, and we point that | |
199 | * at the rud_log_format structure embedded in the rud item. | |
200 | * It is at this point that we assert that all of the extent | |
201 | * slots in the rud item have been filled. | |
202 | */ | |
203 | STATIC void | |
204 | xfs_rud_item_format( | |
205 | struct xfs_log_item *lip, | |
206 | struct xfs_log_vec *lv) | |
207 | { | |
208 | struct xfs_rud_log_item *rudp = RUD_ITEM(lip); | |
209 | struct xfs_log_iovec *vecp = NULL; | |
210 | ||
5880f2d7 DW |
211 | rudp->rud_format.rud_type = XFS_LI_RUD; |
212 | rudp->rud_format.rud_size = 1; | |
213 | ||
214 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUD_FORMAT, &rudp->rud_format, | |
722e2517 | 215 | sizeof(struct xfs_rud_log_format)); |
5880f2d7 DW |
216 | } |
217 | ||
5880f2d7 DW |
218 | /* |
219 | * The RUD is either committed or aborted if the transaction is cancelled. If | |
220 | * the transaction is cancelled, drop our reference to the RUI and free the | |
221 | * RUD. | |
222 | */ | |
223 | STATIC void | |
ddf92053 | 224 | xfs_rud_item_release( |
5880f2d7 DW |
225 | struct xfs_log_item *lip) |
226 | { | |
227 | struct xfs_rud_log_item *rudp = RUD_ITEM(lip); | |
228 | ||
ddf92053 | 229 | xfs_rui_release(rudp->rud_ruip); |
377bcd5f | 230 | kmem_cache_free(xfs_rud_zone, rudp); |
5880f2d7 DW |
231 | } |
232 | ||
5880f2d7 | 233 | static const struct xfs_item_ops xfs_rud_item_ops = { |
9ce632a2 | 234 | .flags = XFS_ITEM_RELEASE_WHEN_COMMITTED, |
5880f2d7 DW |
235 | .iop_size = xfs_rud_item_size, |
236 | .iop_format = xfs_rud_item_format, | |
ddf92053 | 237 | .iop_release = xfs_rud_item_release, |
5880f2d7 DW |
238 | }; |
239 | ||
3cfce1e3 | 240 | static struct xfs_rud_log_item * |
60883447 CH |
241 | xfs_trans_get_rud( |
242 | struct xfs_trans *tp, | |
722e2517 | 243 | struct xfs_rui_log_item *ruip) |
5880f2d7 | 244 | { |
60883447 | 245 | struct xfs_rud_log_item *rudp; |
5880f2d7 | 246 | |
32a2b11f | 247 | rudp = kmem_cache_zalloc(xfs_rud_zone, GFP_KERNEL | __GFP_NOFAIL); |
60883447 CH |
248 | xfs_log_item_init(tp->t_mountp, &rudp->rud_item, XFS_LI_RUD, |
249 | &xfs_rud_item_ops); | |
5880f2d7 | 250 | rudp->rud_ruip = ruip; |
5880f2d7 DW |
251 | rudp->rud_format.rud_rui_id = ruip->rui_format.rui_id; |
252 | ||
60883447 | 253 | xfs_trans_add_item(tp, &rudp->rud_item); |
5880f2d7 DW |
254 | return rudp; |
255 | } | |
9e88b5d8 | 256 | |
3cfce1e3 CH |
257 | /* Set the map extent flags for this reverse mapping. */ |
258 | static void | |
259 | xfs_trans_set_rmap_flags( | |
260 | struct xfs_map_extent *rmap, | |
261 | enum xfs_rmap_intent_type type, | |
262 | int whichfork, | |
263 | xfs_exntst_t state) | |
264 | { | |
265 | rmap->me_flags = 0; | |
266 | if (state == XFS_EXT_UNWRITTEN) | |
267 | rmap->me_flags |= XFS_RMAP_EXTENT_UNWRITTEN; | |
268 | if (whichfork == XFS_ATTR_FORK) | |
269 | rmap->me_flags |= XFS_RMAP_EXTENT_ATTR_FORK; | |
270 | switch (type) { | |
271 | case XFS_RMAP_MAP: | |
272 | rmap->me_flags |= XFS_RMAP_EXTENT_MAP; | |
273 | break; | |
274 | case XFS_RMAP_MAP_SHARED: | |
275 | rmap->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED; | |
276 | break; | |
277 | case XFS_RMAP_UNMAP: | |
278 | rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP; | |
279 | break; | |
280 | case XFS_RMAP_UNMAP_SHARED: | |
281 | rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED; | |
282 | break; | |
283 | case XFS_RMAP_CONVERT: | |
284 | rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT; | |
285 | break; | |
286 | case XFS_RMAP_CONVERT_SHARED: | |
287 | rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED; | |
288 | break; | |
289 | case XFS_RMAP_ALLOC: | |
290 | rmap->me_flags |= XFS_RMAP_EXTENT_ALLOC; | |
291 | break; | |
292 | case XFS_RMAP_FREE: | |
293 | rmap->me_flags |= XFS_RMAP_EXTENT_FREE; | |
294 | break; | |
295 | default: | |
296 | ASSERT(0); | |
297 | } | |
298 | } | |
299 | ||
300 | /* | |
301 | * Finish an rmap update and log it to the RUD. Note that the transaction is | |
302 | * marked dirty regardless of whether the rmap update succeeds or fails to | |
303 | * support the RUI/RUD lifecycle rules. | |
304 | */ | |
305 | static int | |
306 | xfs_trans_log_finish_rmap_update( | |
307 | struct xfs_trans *tp, | |
308 | struct xfs_rud_log_item *rudp, | |
309 | enum xfs_rmap_intent_type type, | |
310 | uint64_t owner, | |
311 | int whichfork, | |
312 | xfs_fileoff_t startoff, | |
313 | xfs_fsblock_t startblock, | |
314 | xfs_filblks_t blockcount, | |
315 | xfs_exntst_t state, | |
316 | struct xfs_btree_cur **pcur) | |
317 | { | |
318 | int error; | |
319 | ||
320 | error = xfs_rmap_finish_one(tp, type, owner, whichfork, startoff, | |
321 | startblock, blockcount, state, pcur); | |
322 | ||
323 | /* | |
324 | * Mark the transaction dirty, even on error. This ensures the | |
325 | * transaction is aborted, which: | |
326 | * | |
327 | * 1.) releases the RUI and frees the RUD | |
328 | * 2.) shuts down the filesystem | |
329 | */ | |
330 | tp->t_flags |= XFS_TRANS_DIRTY; | |
331 | set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags); | |
332 | ||
333 | return error; | |
334 | } | |
335 | ||
336 | /* Sort rmap intents by AG. */ | |
337 | static int | |
338 | xfs_rmap_update_diff_items( | |
339 | void *priv, | |
4f0f586b ST |
340 | const struct list_head *a, |
341 | const struct list_head *b) | |
3cfce1e3 CH |
342 | { |
343 | struct xfs_mount *mp = priv; | |
344 | struct xfs_rmap_intent *ra; | |
345 | struct xfs_rmap_intent *rb; | |
346 | ||
347 | ra = container_of(a, struct xfs_rmap_intent, ri_list); | |
348 | rb = container_of(b, struct xfs_rmap_intent, ri_list); | |
349 | return XFS_FSB_TO_AGNO(mp, ra->ri_bmap.br_startblock) - | |
350 | XFS_FSB_TO_AGNO(mp, rb->ri_bmap.br_startblock); | |
351 | } | |
352 | ||
3cfce1e3 CH |
353 | /* Log rmap updates in the intent item. */ |
354 | STATIC void | |
355 | xfs_rmap_update_log_item( | |
356 | struct xfs_trans *tp, | |
c1f09188 CH |
357 | struct xfs_rui_log_item *ruip, |
358 | struct xfs_rmap_intent *rmap) | |
3cfce1e3 | 359 | { |
3cfce1e3 CH |
360 | uint next_extent; |
361 | struct xfs_map_extent *map; | |
362 | ||
3cfce1e3 CH |
363 | tp->t_flags |= XFS_TRANS_DIRTY; |
364 | set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags); | |
365 | ||
366 | /* | |
367 | * atomic_inc_return gives us the value after the increment; | |
368 | * we want to use it as an array index so we need to subtract 1 from | |
369 | * it. | |
370 | */ | |
371 | next_extent = atomic_inc_return(&ruip->rui_next_extent) - 1; | |
372 | ASSERT(next_extent < ruip->rui_format.rui_nextents); | |
373 | map = &ruip->rui_format.rui_extents[next_extent]; | |
374 | map->me_owner = rmap->ri_owner; | |
375 | map->me_startblock = rmap->ri_bmap.br_startblock; | |
376 | map->me_startoff = rmap->ri_bmap.br_startoff; | |
377 | map->me_len = rmap->ri_bmap.br_blockcount; | |
378 | xfs_trans_set_rmap_flags(map, rmap->ri_type, rmap->ri_whichfork, | |
379 | rmap->ri_bmap.br_state); | |
380 | } | |
381 | ||
13a83333 | 382 | static struct xfs_log_item * |
c1f09188 CH |
383 | xfs_rmap_update_create_intent( |
384 | struct xfs_trans *tp, | |
385 | struct list_head *items, | |
d367a868 CH |
386 | unsigned int count, |
387 | bool sort) | |
c1f09188 CH |
388 | { |
389 | struct xfs_mount *mp = tp->t_mountp; | |
390 | struct xfs_rui_log_item *ruip = xfs_rui_init(mp, count); | |
391 | struct xfs_rmap_intent *rmap; | |
392 | ||
393 | ASSERT(count > 0); | |
394 | ||
395 | xfs_trans_add_item(tp, &ruip->rui_item); | |
d367a868 CH |
396 | if (sort) |
397 | list_sort(mp, items, xfs_rmap_update_diff_items); | |
c1f09188 CH |
398 | list_for_each_entry(rmap, items, ri_list) |
399 | xfs_rmap_update_log_item(tp, ruip, rmap); | |
13a83333 | 400 | return &ruip->rui_item; |
c1f09188 CH |
401 | } |
402 | ||
3cfce1e3 | 403 | /* Get an RUD so we can process all the deferred rmap updates. */ |
f09d167c | 404 | static struct xfs_log_item * |
3cfce1e3 CH |
405 | xfs_rmap_update_create_done( |
406 | struct xfs_trans *tp, | |
13a83333 | 407 | struct xfs_log_item *intent, |
3cfce1e3 CH |
408 | unsigned int count) |
409 | { | |
f09d167c | 410 | return &xfs_trans_get_rud(tp, RUI_ITEM(intent))->rud_item; |
3cfce1e3 CH |
411 | } |
412 | ||
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 CH |
420 | { |
421 | struct xfs_rmap_intent *rmap; | |
422 | int error; | |
423 | ||
424 | rmap = container_of(item, struct xfs_rmap_intent, ri_list); | |
f09d167c | 425 | error = xfs_trans_log_finish_rmap_update(tp, RUD_ITEM(done), |
3ec1b26c CH |
426 | rmap->ri_type, rmap->ri_owner, rmap->ri_whichfork, |
427 | rmap->ri_bmap.br_startoff, rmap->ri_bmap.br_startblock, | |
428 | rmap->ri_bmap.br_blockcount, rmap->ri_bmap.br_state, | |
429 | state); | |
3cfce1e3 CH |
430 | kmem_free(rmap); |
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 | { | |
447 | struct xfs_rmap_intent *rmap; | |
448 | ||
449 | rmap = container_of(item, struct xfs_rmap_intent, ri_list); | |
450 | kmem_free(rmap); | |
451 | } | |
452 | ||
453 | const struct xfs_defer_op_type xfs_rmap_update_defer_type = { | |
454 | .max_items = XFS_RUI_MAX_FAST_EXTENTS, | |
3cfce1e3 CH |
455 | .create_intent = xfs_rmap_update_create_intent, |
456 | .abort_intent = xfs_rmap_update_abort_intent, | |
3cfce1e3 CH |
457 | .create_done = xfs_rmap_update_create_done, |
458 | .finish_item = xfs_rmap_update_finish_item, | |
3ec1b26c | 459 | .finish_cleanup = xfs_rmap_finish_one_cleanup, |
3cfce1e3 CH |
460 | .cancel_item = xfs_rmap_update_cancel_item, |
461 | }; | |
462 | ||
dda7ba65 DW |
463 | /* Is this recovered RUI ok? */ |
464 | static inline bool | |
465 | xfs_rui_validate_map( | |
466 | struct xfs_mount *mp, | |
467 | struct xfs_map_extent *rmap) | |
468 | { | |
38c26bfd | 469 | if (!xfs_has_rmapbt(mp)) |
da5de110 DW |
470 | return false; |
471 | ||
c447ad62 DW |
472 | if (rmap->me_flags & ~XFS_RMAP_EXTENT_FLAGS) |
473 | return false; | |
dda7ba65 | 474 | |
dda7ba65 DW |
475 | switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { |
476 | case XFS_RMAP_EXTENT_MAP: | |
477 | case XFS_RMAP_EXTENT_MAP_SHARED: | |
478 | case XFS_RMAP_EXTENT_UNMAP: | |
479 | case XFS_RMAP_EXTENT_UNMAP_SHARED: | |
480 | case XFS_RMAP_EXTENT_CONVERT: | |
481 | case XFS_RMAP_EXTENT_CONVERT_SHARED: | |
482 | case XFS_RMAP_EXTENT_ALLOC: | |
483 | case XFS_RMAP_EXTENT_FREE: | |
dda7ba65 DW |
484 | break; |
485 | default: | |
c447ad62 | 486 | return false; |
dda7ba65 | 487 | } |
c447ad62 DW |
488 | |
489 | if (!XFS_RMAP_NON_INODE_OWNER(rmap->me_owner) && | |
490 | !xfs_verify_ino(mp, rmap->me_owner)) | |
491 | return false; | |
492 | ||
33005fd0 | 493 | if (!xfs_verify_fileext(mp, rmap->me_startoff, rmap->me_len)) |
c447ad62 DW |
494 | return false; |
495 | ||
67457eb0 | 496 | return xfs_verify_fsbext(mp, rmap->me_startblock, rmap->me_len); |
dda7ba65 DW |
497 | } |
498 | ||
9e88b5d8 DW |
499 | /* |
500 | * Process an rmap update intent item that was recovered from the log. | |
501 | * We need to update the rmapbt. | |
502 | */ | |
cba0ccac | 503 | STATIC int |
96b60f82 DW |
504 | xfs_rui_item_recover( |
505 | struct xfs_log_item *lip, | |
e6fff81e | 506 | struct list_head *capture_list) |
9e88b5d8 | 507 | { |
96b60f82 | 508 | struct xfs_rui_log_item *ruip = RUI_ITEM(lip); |
9e88b5d8 | 509 | struct xfs_map_extent *rmap; |
9c194644 | 510 | struct xfs_rud_log_item *rudp; |
9c194644 DW |
511 | struct xfs_trans *tp; |
512 | struct xfs_btree_cur *rcur = NULL; | |
e6fff81e | 513 | struct xfs_mount *mp = lip->li_mountp; |
96b60f82 DW |
514 | enum xfs_rmap_intent_type type; |
515 | xfs_exntst_t state; | |
96b60f82 DW |
516 | int i; |
517 | int whichfork; | |
518 | int error = 0; | |
9e88b5d8 | 519 | |
9e88b5d8 DW |
520 | /* |
521 | * First check the validity of the extents described by the | |
522 | * RUI. If any are bad, then assume that all are bad and | |
523 | * just toss the RUI. | |
524 | */ | |
525 | for (i = 0; i < ruip->rui_format.rui_nextents; i++) { | |
dda7ba65 DW |
526 | if (!xfs_rui_validate_map(mp, |
527 | &ruip->rui_format.rui_extents[i])) { | |
528 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, | |
529 | &ruip->rui_format, | |
530 | sizeof(ruip->rui_format)); | |
895e196f | 531 | return -EFSCORRUPTED; |
dda7ba65 | 532 | } |
9e88b5d8 DW |
533 | } |
534 | ||
b31c2bdc DW |
535 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, |
536 | mp->m_rmap_maxlevels, 0, XFS_TRANS_RESERVE, &tp); | |
9c194644 DW |
537 | if (error) |
538 | return error; | |
722e2517 | 539 | rudp = xfs_trans_get_rud(tp, ruip); |
9c194644 DW |
540 | |
541 | for (i = 0; i < ruip->rui_format.rui_nextents; i++) { | |
e127fafd | 542 | rmap = &ruip->rui_format.rui_extents[i]; |
9c194644 DW |
543 | state = (rmap->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ? |
544 | XFS_EXT_UNWRITTEN : XFS_EXT_NORM; | |
545 | whichfork = (rmap->me_flags & XFS_RMAP_EXTENT_ATTR_FORK) ? | |
546 | XFS_ATTR_FORK : XFS_DATA_FORK; | |
547 | switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { | |
548 | case XFS_RMAP_EXTENT_MAP: | |
549 | type = XFS_RMAP_MAP; | |
550 | break; | |
ceeb9c83 DW |
551 | case XFS_RMAP_EXTENT_MAP_SHARED: |
552 | type = XFS_RMAP_MAP_SHARED; | |
553 | break; | |
9c194644 DW |
554 | case XFS_RMAP_EXTENT_UNMAP: |
555 | type = XFS_RMAP_UNMAP; | |
556 | break; | |
ceeb9c83 DW |
557 | case XFS_RMAP_EXTENT_UNMAP_SHARED: |
558 | type = XFS_RMAP_UNMAP_SHARED; | |
559 | break; | |
9c194644 DW |
560 | case XFS_RMAP_EXTENT_CONVERT: |
561 | type = XFS_RMAP_CONVERT; | |
562 | break; | |
3f165b33 DW |
563 | case XFS_RMAP_EXTENT_CONVERT_SHARED: |
564 | type = XFS_RMAP_CONVERT_SHARED; | |
565 | break; | |
9c194644 DW |
566 | case XFS_RMAP_EXTENT_ALLOC: |
567 | type = XFS_RMAP_ALLOC; | |
568 | break; | |
569 | case XFS_RMAP_EXTENT_FREE: | |
570 | type = XFS_RMAP_FREE; | |
571 | break; | |
572 | default: | |
a5155b87 | 573 | XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); |
9c194644 DW |
574 | error = -EFSCORRUPTED; |
575 | goto abort_error; | |
576 | } | |
577 | error = xfs_trans_log_finish_rmap_update(tp, rudp, type, | |
578 | rmap->me_owner, whichfork, | |
579 | rmap->me_startoff, rmap->me_startblock, | |
580 | rmap->me_len, state, &rcur); | |
43059d54 DW |
581 | if (error == -EFSCORRUPTED) |
582 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, | |
583 | rmap, sizeof(*rmap)); | |
9c194644 DW |
584 | if (error) |
585 | goto abort_error; | |
586 | ||
587 | } | |
588 | ||
589 | xfs_rmap_finish_one_cleanup(tp, rcur, error); | |
ff4ab5e0 | 590 | return xfs_defer_ops_capture_and_commit(tp, NULL, capture_list); |
9c194644 DW |
591 | |
592 | abort_error: | |
593 | xfs_rmap_finish_one_cleanup(tp, rcur, error); | |
594 | xfs_trans_cancel(tp); | |
9e88b5d8 DW |
595 | return error; |
596 | } | |
86ffa471 | 597 | |
154c733a DW |
598 | STATIC bool |
599 | xfs_rui_item_match( | |
600 | struct xfs_log_item *lip, | |
601 | uint64_t intent_id) | |
602 | { | |
603 | return RUI_ITEM(lip)->rui_format.rui_id == intent_id; | |
604 | } | |
605 | ||
4e919af7 DW |
606 | /* Relog an intent item to push the log tail forward. */ |
607 | static struct xfs_log_item * | |
608 | xfs_rui_item_relog( | |
609 | struct xfs_log_item *intent, | |
610 | struct xfs_trans *tp) | |
611 | { | |
612 | struct xfs_rud_log_item *rudp; | |
613 | struct xfs_rui_log_item *ruip; | |
614 | struct xfs_map_extent *extp; | |
615 | unsigned int count; | |
616 | ||
617 | count = RUI_ITEM(intent)->rui_format.rui_nextents; | |
618 | extp = RUI_ITEM(intent)->rui_format.rui_extents; | |
619 | ||
620 | tp->t_flags |= XFS_TRANS_DIRTY; | |
621 | rudp = xfs_trans_get_rud(tp, RUI_ITEM(intent)); | |
622 | set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags); | |
623 | ||
624 | ruip = xfs_rui_init(tp->t_mountp, count); | |
625 | memcpy(ruip->rui_format.rui_extents, extp, count * sizeof(*extp)); | |
626 | atomic_set(&ruip->rui_next_extent, count); | |
627 | xfs_trans_add_item(tp, &ruip->rui_item); | |
628 | set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags); | |
629 | return &ruip->rui_item; | |
630 | } | |
631 | ||
cba0ccac DW |
632 | static const struct xfs_item_ops xfs_rui_item_ops = { |
633 | .iop_size = xfs_rui_item_size, | |
634 | .iop_format = xfs_rui_item_format, | |
635 | .iop_unpin = xfs_rui_item_unpin, | |
636 | .iop_release = xfs_rui_item_release, | |
637 | .iop_recover = xfs_rui_item_recover, | |
154c733a | 638 | .iop_match = xfs_rui_item_match, |
4e919af7 | 639 | .iop_relog = xfs_rui_item_relog, |
cba0ccac DW |
640 | }; |
641 | ||
07590a9d DW |
642 | /* |
643 | * This routine is called to create an in-core extent rmap update | |
644 | * item from the rui format structure which was logged on disk. | |
645 | * It allocates an in-core rui, copies the extents from the format | |
646 | * structure into it, and adds the rui to the AIL with the given | |
647 | * LSN. | |
648 | */ | |
649 | STATIC int | |
650 | xlog_recover_rui_commit_pass2( | |
651 | struct xlog *log, | |
652 | struct list_head *buffer_list, | |
653 | struct xlog_recover_item *item, | |
654 | xfs_lsn_t lsn) | |
655 | { | |
656 | int error; | |
657 | struct xfs_mount *mp = log->l_mp; | |
658 | struct xfs_rui_log_item *ruip; | |
659 | struct xfs_rui_log_format *rui_formatp; | |
660 | ||
661 | rui_formatp = item->ri_buf[0].i_addr; | |
662 | ||
663 | ruip = xfs_rui_init(mp, rui_formatp->rui_nextents); | |
664 | error = xfs_rui_copy_format(&item->ri_buf[0], &ruip->rui_format); | |
665 | if (error) { | |
666 | xfs_rui_item_free(ruip); | |
667 | return error; | |
668 | } | |
669 | atomic_set(&ruip->rui_next_extent, rui_formatp->rui_nextents); | |
07590a9d | 670 | /* |
86a37174 DW |
671 | * Insert the intent into the AIL directly and drop one reference so |
672 | * that finishing or canceling the work will drop the other. | |
07590a9d | 673 | */ |
86a37174 | 674 | xfs_trans_ail_insert(log->l_ailp, &ruip->rui_item, lsn); |
07590a9d DW |
675 | xfs_rui_release(ruip); |
676 | return 0; | |
677 | } | |
678 | ||
86ffa471 DW |
679 | const struct xlog_recover_item_ops xlog_rui_item_ops = { |
680 | .item_type = XFS_LI_RUI, | |
07590a9d | 681 | .commit_pass2 = xlog_recover_rui_commit_pass2, |
86ffa471 DW |
682 | }; |
683 | ||
07590a9d DW |
684 | /* |
685 | * This routine is called when an RUD format structure is found in a committed | |
686 | * transaction in the log. Its purpose is to cancel the corresponding RUI if it | |
687 | * was still in the log. To do this it searches the AIL for the RUI with an id | |
688 | * equal to that in the RUD format structure. If we find it we drop the RUD | |
689 | * reference, which removes the RUI from the AIL and frees it. | |
690 | */ | |
691 | STATIC int | |
692 | xlog_recover_rud_commit_pass2( | |
693 | struct xlog *log, | |
694 | struct list_head *buffer_list, | |
695 | struct xlog_recover_item *item, | |
696 | xfs_lsn_t lsn) | |
697 | { | |
698 | struct xfs_rud_log_format *rud_formatp; | |
07590a9d DW |
699 | |
700 | rud_formatp = item->ri_buf[0].i_addr; | |
701 | ASSERT(item->ri_buf[0].i_len == sizeof(struct xfs_rud_log_format)); | |
07590a9d | 702 | |
154c733a | 703 | xlog_recover_release_intent(log, XFS_LI_RUI, rud_formatp->rud_rui_id); |
07590a9d DW |
704 | return 0; |
705 | } | |
706 | ||
86ffa471 DW |
707 | const struct xlog_recover_item_ops xlog_rud_item_ops = { |
708 | .item_type = XFS_LI_RUD, | |
07590a9d | 709 | .commit_pass2 = xlog_recover_rud_commit_pass2, |
86ffa471 | 710 | }; |