Commit | Line | Data |
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aaedb55b JB |
1 | /* |
2 | * Copyright (C) 2013 Fusion IO. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public | |
6 | * License v2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public | |
14 | * License along with this program; if not, write to the | |
15 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
16 | * Boston, MA 021110-1307, USA. | |
17 | */ | |
18 | ||
19 | #include "btrfs-tests.h" | |
20 | #include "../ctree.h" | |
21 | #include "../btrfs_inode.h" | |
22 | #include "../disk-io.h" | |
23 | #include "../extent_io.h" | |
24 | #include "../volumes.h" | |
ebb8765b | 25 | #include "../compression.h" |
aaedb55b | 26 | |
aaedb55b JB |
27 | static void insert_extent(struct btrfs_root *root, u64 start, u64 len, |
28 | u64 ram_bytes, u64 offset, u64 disk_bytenr, | |
29 | u64 disk_len, u32 type, u8 compression, int slot) | |
30 | { | |
31 | struct btrfs_path path; | |
32 | struct btrfs_file_extent_item *fi; | |
33 | struct extent_buffer *leaf = root->node; | |
34 | struct btrfs_key key; | |
35 | u32 value_len = sizeof(struct btrfs_file_extent_item); | |
36 | ||
37 | if (type == BTRFS_FILE_EXTENT_INLINE) | |
38 | value_len += len; | |
39 | memset(&path, 0, sizeof(path)); | |
40 | ||
41 | path.nodes[0] = leaf; | |
42 | path.slots[0] = slot; | |
43 | ||
44 | key.objectid = BTRFS_FIRST_FREE_OBJECTID; | |
45 | key.type = BTRFS_EXTENT_DATA_KEY; | |
46 | key.offset = start; | |
47 | ||
48 | setup_items_for_insert(root, &path, &key, &value_len, value_len, | |
49 | value_len + sizeof(struct btrfs_item), 1); | |
50 | fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item); | |
51 | btrfs_set_file_extent_generation(leaf, fi, 1); | |
52 | btrfs_set_file_extent_type(leaf, fi, type); | |
53 | btrfs_set_file_extent_disk_bytenr(leaf, fi, disk_bytenr); | |
54 | btrfs_set_file_extent_disk_num_bytes(leaf, fi, disk_len); | |
55 | btrfs_set_file_extent_offset(leaf, fi, offset); | |
56 | btrfs_set_file_extent_num_bytes(leaf, fi, len); | |
57 | btrfs_set_file_extent_ram_bytes(leaf, fi, ram_bytes); | |
58 | btrfs_set_file_extent_compression(leaf, fi, compression); | |
59 | btrfs_set_file_extent_encryption(leaf, fi, 0); | |
60 | btrfs_set_file_extent_other_encoding(leaf, fi, 0); | |
61 | } | |
62 | ||
0e30db86 JB |
63 | static void insert_inode_item_key(struct btrfs_root *root) |
64 | { | |
65 | struct btrfs_path path; | |
66 | struct extent_buffer *leaf = root->node; | |
67 | struct btrfs_key key; | |
68 | u32 value_len = 0; | |
69 | ||
70 | memset(&path, 0, sizeof(path)); | |
71 | ||
72 | path.nodes[0] = leaf; | |
73 | path.slots[0] = 0; | |
74 | ||
75 | key.objectid = BTRFS_INODE_ITEM_KEY; | |
76 | key.type = BTRFS_INODE_ITEM_KEY; | |
77 | key.offset = 0; | |
78 | ||
79 | setup_items_for_insert(root, &path, &key, &value_len, value_len, | |
80 | value_len + sizeof(struct btrfs_item), 1); | |
81 | } | |
82 | ||
aaedb55b JB |
83 | /* |
84 | * Build the most complicated map of extents the earth has ever seen. We want | |
85 | * this so we can test all of the corner cases of btrfs_get_extent. Here is a | |
86 | * diagram of how the extents will look though this may not be possible we still | |
87 | * want to make sure everything acts normally (the last number is not inclusive) | |
88 | * | |
89 | * [0 - 5][5 - 6][6 - 10][10 - 4096][ 4096 - 8192 ][8192 - 12288] | |
90 | * [hole ][inline][ hole ][ regular ][regular1 split][ hole ] | |
91 | * | |
92 | * [ 12288 - 20480][20480 - 24576][ 24576 - 28672 ][28672 - 36864][36864 - 45056] | |
93 | * [regular1 split][ prealloc1 ][prealloc1 written][ prealloc1 ][ compressed ] | |
94 | * | |
95 | * [45056 - 49152][49152-53248][53248-61440][61440-65536][ 65536+81920 ] | |
96 | * [ compressed1 ][ regular ][compressed1][ regular ][ hole but no extent] | |
97 | * | |
98 | * [81920-86016] | |
99 | * [ regular ] | |
100 | */ | |
101 | static void setup_file_extents(struct btrfs_root *root) | |
102 | { | |
103 | int slot = 0; | |
ee22184b | 104 | u64 disk_bytenr = SZ_1M; |
aaedb55b JB |
105 | u64 offset = 0; |
106 | ||
107 | /* First we want a hole */ | |
108 | insert_extent(root, offset, 5, 5, 0, 0, 0, BTRFS_FILE_EXTENT_REG, 0, | |
109 | slot); | |
110 | slot++; | |
111 | offset += 5; | |
112 | ||
113 | /* | |
114 | * Now we want an inline extent, I don't think this is possible but hey | |
115 | * why not? Also keep in mind if we have an inline extent it counts as | |
116 | * the whole first page. If we were to expand it we would have to cow | |
117 | * and we wouldn't have an inline extent anymore. | |
118 | */ | |
119 | insert_extent(root, offset, 1, 1, 0, 0, 0, BTRFS_FILE_EXTENT_INLINE, 0, | |
120 | slot); | |
121 | slot++; | |
122 | offset = 4096; | |
123 | ||
124 | /* Now another hole */ | |
125 | insert_extent(root, offset, 4, 4, 0, 0, 0, BTRFS_FILE_EXTENT_REG, 0, | |
126 | slot); | |
127 | slot++; | |
128 | offset += 4; | |
129 | ||
130 | /* Now for a regular extent */ | |
131 | insert_extent(root, offset, 4095, 4095, 0, disk_bytenr, 4096, | |
132 | BTRFS_FILE_EXTENT_REG, 0, slot); | |
133 | slot++; | |
134 | disk_bytenr += 4096; | |
135 | offset += 4095; | |
136 | ||
137 | /* | |
138 | * Now for 3 extents that were split from a hole punch so we test | |
139 | * offsets properly. | |
140 | */ | |
141 | insert_extent(root, offset, 4096, 16384, 0, disk_bytenr, 16384, | |
142 | BTRFS_FILE_EXTENT_REG, 0, slot); | |
143 | slot++; | |
144 | offset += 4096; | |
145 | insert_extent(root, offset, 4096, 4096, 0, 0, 0, BTRFS_FILE_EXTENT_REG, | |
146 | 0, slot); | |
147 | slot++; | |
148 | offset += 4096; | |
149 | insert_extent(root, offset, 8192, 16384, 8192, disk_bytenr, 16384, | |
150 | BTRFS_FILE_EXTENT_REG, 0, slot); | |
151 | slot++; | |
152 | offset += 8192; | |
153 | disk_bytenr += 16384; | |
154 | ||
155 | /* Now for a unwritten prealloc extent */ | |
156 | insert_extent(root, offset, 4096, 4096, 0, disk_bytenr, 4096, | |
157 | BTRFS_FILE_EXTENT_PREALLOC, 0, slot); | |
158 | slot++; | |
159 | offset += 4096; | |
160 | ||
161 | /* | |
162 | * We want to jack up disk_bytenr a little more so the em stuff doesn't | |
163 | * merge our records. | |
164 | */ | |
165 | disk_bytenr += 8192; | |
166 | ||
167 | /* | |
168 | * Now for a partially written prealloc extent, basically the same as | |
169 | * the hole punch example above. Ram_bytes never changes when you mark | |
170 | * extents written btw. | |
171 | */ | |
172 | insert_extent(root, offset, 4096, 16384, 0, disk_bytenr, 16384, | |
173 | BTRFS_FILE_EXTENT_PREALLOC, 0, slot); | |
174 | slot++; | |
175 | offset += 4096; | |
176 | insert_extent(root, offset, 4096, 16384, 4096, disk_bytenr, 16384, | |
177 | BTRFS_FILE_EXTENT_REG, 0, slot); | |
178 | slot++; | |
179 | offset += 4096; | |
180 | insert_extent(root, offset, 8192, 16384, 8192, disk_bytenr, 16384, | |
181 | BTRFS_FILE_EXTENT_PREALLOC, 0, slot); | |
182 | slot++; | |
183 | offset += 8192; | |
184 | disk_bytenr += 16384; | |
185 | ||
186 | /* Now a normal compressed extent */ | |
187 | insert_extent(root, offset, 8192, 8192, 0, disk_bytenr, 4096, | |
188 | BTRFS_FILE_EXTENT_REG, BTRFS_COMPRESS_ZLIB, slot); | |
189 | slot++; | |
190 | offset += 8192; | |
191 | /* No merges */ | |
192 | disk_bytenr += 8192; | |
193 | ||
194 | /* Now a split compressed extent */ | |
195 | insert_extent(root, offset, 4096, 16384, 0, disk_bytenr, 4096, | |
196 | BTRFS_FILE_EXTENT_REG, BTRFS_COMPRESS_ZLIB, slot); | |
197 | slot++; | |
198 | offset += 4096; | |
199 | insert_extent(root, offset, 4096, 4096, 0, disk_bytenr + 4096, 4096, | |
200 | BTRFS_FILE_EXTENT_REG, 0, slot); | |
201 | slot++; | |
202 | offset += 4096; | |
203 | insert_extent(root, offset, 8192, 16384, 8192, disk_bytenr, 4096, | |
204 | BTRFS_FILE_EXTENT_REG, BTRFS_COMPRESS_ZLIB, slot); | |
205 | slot++; | |
206 | offset += 8192; | |
207 | disk_bytenr += 8192; | |
208 | ||
209 | /* Now extents that have a hole but no hole extent */ | |
210 | insert_extent(root, offset, 4096, 4096, 0, disk_bytenr, 4096, | |
211 | BTRFS_FILE_EXTENT_REG, 0, slot); | |
212 | slot++; | |
213 | offset += 16384; | |
214 | disk_bytenr += 4096; | |
215 | insert_extent(root, offset, 4096, 4096, 0, disk_bytenr, 4096, | |
216 | BTRFS_FILE_EXTENT_REG, 0, slot); | |
217 | } | |
218 | ||
219 | static unsigned long prealloc_only = 0; | |
220 | static unsigned long compressed_only = 0; | |
221 | static unsigned long vacancy_only = 0; | |
222 | ||
223 | static noinline int test_btrfs_get_extent(void) | |
224 | { | |
225 | struct inode *inode = NULL; | |
226 | struct btrfs_root *root = NULL; | |
227 | struct extent_map *em = NULL; | |
228 | u64 orig_start; | |
229 | u64 disk_bytenr; | |
230 | u64 offset; | |
231 | int ret = -ENOMEM; | |
232 | ||
aaedb55b JB |
233 | inode = btrfs_new_test_inode(); |
234 | if (!inode) { | |
235 | test_msg("Couldn't allocate inode\n"); | |
236 | return ret; | |
237 | } | |
238 | ||
239 | BTRFS_I(inode)->location.type = BTRFS_INODE_ITEM_KEY; | |
240 | BTRFS_I(inode)->location.objectid = BTRFS_FIRST_FREE_OBJECTID; | |
241 | BTRFS_I(inode)->location.offset = 0; | |
242 | ||
243 | root = btrfs_alloc_dummy_root(); | |
244 | if (IS_ERR(root)) { | |
245 | test_msg("Couldn't allocate root\n"); | |
246 | goto out; | |
247 | } | |
248 | ||
249 | /* | |
250 | * We do this since btrfs_get_extent wants to assign em->bdev to | |
251 | * root->fs_info->fs_devices->latest_bdev. | |
252 | */ | |
faa2dbf0 | 253 | root->fs_info = btrfs_alloc_dummy_fs_info(); |
aaedb55b JB |
254 | if (!root->fs_info) { |
255 | test_msg("Couldn't allocate dummy fs info\n"); | |
256 | goto out; | |
257 | } | |
258 | ||
3f556f78 | 259 | root->node = alloc_dummy_extent_buffer(NULL, 4096); |
aaedb55b JB |
260 | if (!root->node) { |
261 | test_msg("Couldn't allocate dummy buffer\n"); | |
262 | goto out; | |
263 | } | |
264 | ||
265 | /* | |
266 | * We will just free a dummy node if it's ref count is 2 so we need an | |
267 | * extra ref so our searches don't accidently release our page. | |
268 | */ | |
269 | extent_buffer_get(root->node); | |
270 | btrfs_set_header_nritems(root->node, 0); | |
271 | btrfs_set_header_level(root->node, 0); | |
272 | ret = -EINVAL; | |
273 | ||
274 | /* First with no extents */ | |
275 | BTRFS_I(inode)->root = root; | |
276 | em = btrfs_get_extent(inode, NULL, 0, 0, 4096, 0); | |
277 | if (IS_ERR(em)) { | |
278 | em = NULL; | |
279 | test_msg("Got an error when we shouldn't have\n"); | |
280 | goto out; | |
281 | } | |
282 | if (em->block_start != EXTENT_MAP_HOLE) { | |
283 | test_msg("Expected a hole, got %llu\n", em->block_start); | |
284 | goto out; | |
285 | } | |
286 | if (!test_bit(EXTENT_FLAG_VACANCY, &em->flags)) { | |
287 | test_msg("Vacancy flag wasn't set properly\n"); | |
288 | goto out; | |
289 | } | |
290 | free_extent_map(em); | |
291 | btrfs_drop_extent_cache(inode, 0, (u64)-1, 0); | |
292 | ||
293 | /* | |
294 | * All of the magic numbers are based on the mapping setup in | |
295 | * setup_file_extents, so if you change anything there you need to | |
296 | * update the comment and update the expected values below. | |
297 | */ | |
298 | setup_file_extents(root); | |
299 | ||
300 | em = btrfs_get_extent(inode, NULL, 0, 0, (u64)-1, 0); | |
301 | if (IS_ERR(em)) { | |
302 | test_msg("Got an error when we shouldn't have\n"); | |
303 | goto out; | |
304 | } | |
305 | if (em->block_start != EXTENT_MAP_HOLE) { | |
306 | test_msg("Expected a hole, got %llu\n", em->block_start); | |
307 | goto out; | |
308 | } | |
309 | if (em->start != 0 || em->len != 5) { | |
310 | test_msg("Unexpected extent wanted start 0 len 5, got start " | |
311 | "%llu len %llu\n", em->start, em->len); | |
312 | goto out; | |
313 | } | |
314 | if (em->flags != 0) { | |
315 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
316 | goto out; | |
317 | } | |
318 | offset = em->start + em->len; | |
319 | free_extent_map(em); | |
320 | ||
321 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
322 | if (IS_ERR(em)) { | |
323 | test_msg("Got an error when we shouldn't have\n"); | |
324 | goto out; | |
325 | } | |
326 | if (em->block_start != EXTENT_MAP_INLINE) { | |
327 | test_msg("Expected an inline, got %llu\n", em->block_start); | |
328 | goto out; | |
329 | } | |
330 | if (em->start != offset || em->len != 4091) { | |
331 | test_msg("Unexpected extent wanted start %llu len 1, got start " | |
332 | "%llu len %llu\n", offset, em->start, em->len); | |
333 | goto out; | |
334 | } | |
335 | if (em->flags != 0) { | |
336 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
337 | goto out; | |
338 | } | |
339 | /* | |
340 | * We don't test anything else for inline since it doesn't get set | |
341 | * unless we have a page for it to write into. Maybe we should change | |
342 | * this? | |
343 | */ | |
344 | offset = em->start + em->len; | |
345 | free_extent_map(em); | |
346 | ||
347 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
348 | if (IS_ERR(em)) { | |
349 | test_msg("Got an error when we shouldn't have\n"); | |
350 | goto out; | |
351 | } | |
352 | if (em->block_start != EXTENT_MAP_HOLE) { | |
353 | test_msg("Expected a hole, got %llu\n", em->block_start); | |
354 | goto out; | |
355 | } | |
356 | if (em->start != offset || em->len != 4) { | |
357 | test_msg("Unexpected extent wanted start %llu len 4, got start " | |
358 | "%llu len %llu\n", offset, em->start, em->len); | |
359 | goto out; | |
360 | } | |
361 | if (em->flags != 0) { | |
362 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
363 | goto out; | |
364 | } | |
365 | offset = em->start + em->len; | |
366 | free_extent_map(em); | |
367 | ||
368 | /* Regular extent */ | |
369 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
370 | if (IS_ERR(em)) { | |
371 | test_msg("Got an error when we shouldn't have\n"); | |
372 | goto out; | |
373 | } | |
374 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
375 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
376 | goto out; | |
377 | } | |
378 | if (em->start != offset || em->len != 4095) { | |
379 | test_msg("Unexpected extent wanted start %llu len 4095, got " | |
380 | "start %llu len %llu\n", offset, em->start, em->len); | |
381 | goto out; | |
382 | } | |
383 | if (em->flags != 0) { | |
384 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
385 | goto out; | |
386 | } | |
387 | if (em->orig_start != em->start) { | |
388 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
389 | em->orig_start); | |
390 | goto out; | |
391 | } | |
392 | offset = em->start + em->len; | |
393 | free_extent_map(em); | |
394 | ||
395 | /* The next 3 are split extents */ | |
396 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
397 | if (IS_ERR(em)) { | |
398 | test_msg("Got an error when we shouldn't have\n"); | |
399 | goto out; | |
400 | } | |
401 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
402 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
403 | goto out; | |
404 | } | |
405 | if (em->start != offset || em->len != 4096) { | |
406 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
407 | "start %llu len %llu\n", offset, em->start, em->len); | |
408 | goto out; | |
409 | } | |
410 | if (em->flags != 0) { | |
411 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
412 | goto out; | |
413 | } | |
414 | if (em->orig_start != em->start) { | |
415 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
416 | em->orig_start); | |
417 | goto out; | |
418 | } | |
419 | disk_bytenr = em->block_start; | |
420 | orig_start = em->start; | |
421 | offset = em->start + em->len; | |
422 | free_extent_map(em); | |
423 | ||
424 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
425 | if (IS_ERR(em)) { | |
426 | test_msg("Got an error when we shouldn't have\n"); | |
427 | goto out; | |
428 | } | |
429 | if (em->block_start != EXTENT_MAP_HOLE) { | |
430 | test_msg("Expected a hole, got %llu\n", em->block_start); | |
431 | goto out; | |
432 | } | |
433 | if (em->start != offset || em->len != 4096) { | |
434 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
435 | "start %llu len %llu\n", offset, em->start, em->len); | |
436 | goto out; | |
437 | } | |
438 | if (em->flags != 0) { | |
439 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
440 | goto out; | |
441 | } | |
442 | offset = em->start + em->len; | |
443 | free_extent_map(em); | |
444 | ||
445 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
446 | if (IS_ERR(em)) { | |
447 | test_msg("Got an error when we shouldn't have\n"); | |
448 | goto out; | |
449 | } | |
450 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
451 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
452 | goto out; | |
453 | } | |
454 | if (em->start != offset || em->len != 8192) { | |
455 | test_msg("Unexpected extent wanted start %llu len 8192, got " | |
456 | "start %llu len %llu\n", offset, em->start, em->len); | |
457 | goto out; | |
458 | } | |
459 | if (em->flags != 0) { | |
460 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
461 | goto out; | |
462 | } | |
463 | if (em->orig_start != orig_start) { | |
464 | test_msg("Wrong orig offset, want %llu, have %llu\n", | |
465 | orig_start, em->orig_start); | |
466 | goto out; | |
467 | } | |
468 | disk_bytenr += (em->start - orig_start); | |
469 | if (em->block_start != disk_bytenr) { | |
470 | test_msg("Wrong block start, want %llu, have %llu\n", | |
471 | disk_bytenr, em->block_start); | |
472 | goto out; | |
473 | } | |
474 | offset = em->start + em->len; | |
475 | free_extent_map(em); | |
476 | ||
477 | /* Prealloc extent */ | |
478 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
479 | if (IS_ERR(em)) { | |
480 | test_msg("Got an error when we shouldn't have\n"); | |
481 | goto out; | |
482 | } | |
483 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
484 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
485 | goto out; | |
486 | } | |
487 | if (em->start != offset || em->len != 4096) { | |
488 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
489 | "start %llu len %llu\n", offset, em->start, em->len); | |
490 | goto out; | |
491 | } | |
492 | if (em->flags != prealloc_only) { | |
493 | test_msg("Unexpected flags set, want %lu have %lu\n", | |
494 | prealloc_only, em->flags); | |
495 | goto out; | |
496 | } | |
497 | if (em->orig_start != em->start) { | |
498 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
499 | em->orig_start); | |
500 | goto out; | |
501 | } | |
502 | offset = em->start + em->len; | |
503 | free_extent_map(em); | |
504 | ||
505 | /* The next 3 are a half written prealloc extent */ | |
506 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
507 | if (IS_ERR(em)) { | |
508 | test_msg("Got an error when we shouldn't have\n"); | |
509 | goto out; | |
510 | } | |
511 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
512 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
513 | goto out; | |
514 | } | |
515 | if (em->start != offset || em->len != 4096) { | |
516 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
517 | "start %llu len %llu\n", offset, em->start, em->len); | |
518 | goto out; | |
519 | } | |
520 | if (em->flags != prealloc_only) { | |
521 | test_msg("Unexpected flags set, want %lu have %lu\n", | |
522 | prealloc_only, em->flags); | |
523 | goto out; | |
524 | } | |
525 | if (em->orig_start != em->start) { | |
526 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
527 | em->orig_start); | |
528 | goto out; | |
529 | } | |
530 | disk_bytenr = em->block_start; | |
531 | orig_start = em->start; | |
532 | offset = em->start + em->len; | |
533 | free_extent_map(em); | |
534 | ||
535 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
536 | if (IS_ERR(em)) { | |
537 | test_msg("Got an error when we shouldn't have\n"); | |
538 | goto out; | |
539 | } | |
540 | if (em->block_start >= EXTENT_MAP_HOLE) { | |
541 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
542 | goto out; | |
543 | } | |
544 | if (em->start != offset || em->len != 4096) { | |
545 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
546 | "start %llu len %llu\n", offset, em->start, em->len); | |
547 | goto out; | |
548 | } | |
549 | if (em->flags != 0) { | |
550 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
551 | goto out; | |
552 | } | |
553 | if (em->orig_start != orig_start) { | |
554 | test_msg("Unexpected orig offset, wanted %llu, have %llu\n", | |
555 | orig_start, em->orig_start); | |
556 | goto out; | |
557 | } | |
558 | if (em->block_start != (disk_bytenr + (em->start - em->orig_start))) { | |
559 | test_msg("Unexpected block start, wanted %llu, have %llu\n", | |
560 | disk_bytenr + (em->start - em->orig_start), | |
561 | em->block_start); | |
562 | goto out; | |
563 | } | |
564 | offset = em->start + em->len; | |
565 | free_extent_map(em); | |
566 | ||
567 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
568 | if (IS_ERR(em)) { | |
569 | test_msg("Got an error when we shouldn't have\n"); | |
570 | goto out; | |
571 | } | |
572 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
573 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
574 | goto out; | |
575 | } | |
576 | if (em->start != offset || em->len != 8192) { | |
577 | test_msg("Unexpected extent wanted start %llu len 8192, got " | |
578 | "start %llu len %llu\n", offset, em->start, em->len); | |
579 | goto out; | |
580 | } | |
581 | if (em->flags != prealloc_only) { | |
582 | test_msg("Unexpected flags set, want %lu have %lu\n", | |
583 | prealloc_only, em->flags); | |
584 | goto out; | |
585 | } | |
586 | if (em->orig_start != orig_start) { | |
587 | test_msg("Wrong orig offset, want %llu, have %llu\n", orig_start, | |
588 | em->orig_start); | |
589 | goto out; | |
590 | } | |
591 | if (em->block_start != (disk_bytenr + (em->start - em->orig_start))) { | |
592 | test_msg("Unexpected block start, wanted %llu, have %llu\n", | |
593 | disk_bytenr + (em->start - em->orig_start), | |
594 | em->block_start); | |
595 | goto out; | |
596 | } | |
597 | offset = em->start + em->len; | |
598 | free_extent_map(em); | |
599 | ||
600 | /* Now for the compressed extent */ | |
601 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
602 | if (IS_ERR(em)) { | |
603 | test_msg("Got an error when we shouldn't have\n"); | |
604 | goto out; | |
605 | } | |
606 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
607 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
608 | goto out; | |
609 | } | |
610 | if (em->start != offset || em->len != 8192) { | |
611 | test_msg("Unexpected extent wanted start %llu len 8192, got " | |
612 | "start %llu len %llu\n", offset, em->start, em->len); | |
613 | goto out; | |
614 | } | |
615 | if (em->flags != compressed_only) { | |
616 | test_msg("Unexpected flags set, want %lu have %lu\n", | |
617 | compressed_only, em->flags); | |
618 | goto out; | |
619 | } | |
620 | if (em->orig_start != em->start) { | |
621 | test_msg("Wrong orig offset, want %llu, have %llu\n", | |
622 | em->start, em->orig_start); | |
623 | goto out; | |
624 | } | |
625 | if (em->compress_type != BTRFS_COMPRESS_ZLIB) { | |
626 | test_msg("Unexpected compress type, wanted %d, got %d\n", | |
627 | BTRFS_COMPRESS_ZLIB, em->compress_type); | |
628 | goto out; | |
629 | } | |
630 | offset = em->start + em->len; | |
631 | free_extent_map(em); | |
632 | ||
633 | /* Split compressed extent */ | |
634 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
635 | if (IS_ERR(em)) { | |
636 | test_msg("Got an error when we shouldn't have\n"); | |
637 | goto out; | |
638 | } | |
639 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
640 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
641 | goto out; | |
642 | } | |
643 | if (em->start != offset || em->len != 4096) { | |
644 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
645 | "start %llu len %llu\n", offset, em->start, em->len); | |
646 | goto out; | |
647 | } | |
648 | if (em->flags != compressed_only) { | |
649 | test_msg("Unexpected flags set, want %lu have %lu\n", | |
650 | compressed_only, em->flags); | |
651 | goto out; | |
652 | } | |
653 | if (em->orig_start != em->start) { | |
654 | test_msg("Wrong orig offset, want %llu, have %llu\n", | |
655 | em->start, em->orig_start); | |
656 | goto out; | |
657 | } | |
658 | if (em->compress_type != BTRFS_COMPRESS_ZLIB) { | |
659 | test_msg("Unexpected compress type, wanted %d, got %d\n", | |
660 | BTRFS_COMPRESS_ZLIB, em->compress_type); | |
661 | goto out; | |
662 | } | |
663 | disk_bytenr = em->block_start; | |
664 | orig_start = em->start; | |
665 | offset = em->start + em->len; | |
666 | free_extent_map(em); | |
667 | ||
668 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
669 | if (IS_ERR(em)) { | |
670 | test_msg("Got an error when we shouldn't have\n"); | |
671 | goto out; | |
672 | } | |
673 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
674 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
675 | goto out; | |
676 | } | |
677 | if (em->start != offset || em->len != 4096) { | |
678 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
679 | "start %llu len %llu\n", offset, em->start, em->len); | |
680 | goto out; | |
681 | } | |
682 | if (em->flags != 0) { | |
683 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
684 | goto out; | |
685 | } | |
686 | if (em->orig_start != em->start) { | |
687 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
688 | em->orig_start); | |
689 | goto out; | |
690 | } | |
691 | offset = em->start + em->len; | |
692 | free_extent_map(em); | |
693 | ||
694 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
695 | if (IS_ERR(em)) { | |
696 | test_msg("Got an error when we shouldn't have\n"); | |
697 | goto out; | |
698 | } | |
699 | if (em->block_start != disk_bytenr) { | |
700 | test_msg("Block start does not match, want %llu got %llu\n", | |
701 | disk_bytenr, em->block_start); | |
702 | goto out; | |
703 | } | |
704 | if (em->start != offset || em->len != 8192) { | |
705 | test_msg("Unexpected extent wanted start %llu len 8192, got " | |
706 | "start %llu len %llu\n", offset, em->start, em->len); | |
707 | goto out; | |
708 | } | |
709 | if (em->flags != compressed_only) { | |
710 | test_msg("Unexpected flags set, want %lu have %lu\n", | |
711 | compressed_only, em->flags); | |
712 | goto out; | |
713 | } | |
714 | if (em->orig_start != orig_start) { | |
715 | test_msg("Wrong orig offset, want %llu, have %llu\n", | |
716 | em->start, orig_start); | |
717 | goto out; | |
718 | } | |
719 | if (em->compress_type != BTRFS_COMPRESS_ZLIB) { | |
720 | test_msg("Unexpected compress type, wanted %d, got %d\n", | |
721 | BTRFS_COMPRESS_ZLIB, em->compress_type); | |
722 | goto out; | |
723 | } | |
724 | offset = em->start + em->len; | |
725 | free_extent_map(em); | |
726 | ||
727 | /* A hole between regular extents but no hole extent */ | |
728 | em = btrfs_get_extent(inode, NULL, 0, offset + 6, 4096, 0); | |
729 | if (IS_ERR(em)) { | |
730 | test_msg("Got an error when we shouldn't have\n"); | |
731 | goto out; | |
732 | } | |
733 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
734 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
735 | goto out; | |
736 | } | |
737 | if (em->start != offset || em->len != 4096) { | |
738 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
739 | "start %llu len %llu\n", offset, em->start, em->len); | |
740 | goto out; | |
741 | } | |
742 | if (em->flags != 0) { | |
743 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
744 | goto out; | |
745 | } | |
746 | if (em->orig_start != em->start) { | |
747 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
748 | em->orig_start); | |
749 | goto out; | |
750 | } | |
751 | offset = em->start + em->len; | |
752 | free_extent_map(em); | |
753 | ||
754 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096 * 1024, 0); | |
755 | if (IS_ERR(em)) { | |
756 | test_msg("Got an error when we shouldn't have\n"); | |
757 | goto out; | |
758 | } | |
759 | if (em->block_start != EXTENT_MAP_HOLE) { | |
760 | test_msg("Expected a hole extent, got %llu\n", em->block_start); | |
761 | goto out; | |
762 | } | |
763 | /* | |
764 | * Currently we just return a length that we requested rather than the | |
765 | * length of the actual hole, if this changes we'll have to change this | |
766 | * test. | |
767 | */ | |
768 | if (em->start != offset || em->len != 12288) { | |
769 | test_msg("Unexpected extent wanted start %llu len 12288, got " | |
770 | "start %llu len %llu\n", offset, em->start, em->len); | |
771 | goto out; | |
772 | } | |
773 | if (em->flags != vacancy_only) { | |
774 | test_msg("Unexpected flags set, want %lu have %lu\n", | |
775 | vacancy_only, em->flags); | |
776 | goto out; | |
777 | } | |
778 | if (em->orig_start != em->start) { | |
779 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
780 | em->orig_start); | |
781 | goto out; | |
782 | } | |
783 | offset = em->start + em->len; | |
784 | free_extent_map(em); | |
785 | ||
786 | em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0); | |
787 | if (IS_ERR(em)) { | |
788 | test_msg("Got an error when we shouldn't have\n"); | |
789 | goto out; | |
790 | } | |
791 | if (em->block_start >= EXTENT_MAP_LAST_BYTE) { | |
792 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
793 | goto out; | |
794 | } | |
795 | if (em->start != offset || em->len != 4096) { | |
796 | test_msg("Unexpected extent wanted start %llu len 4096, got " | |
797 | "start %llu len %llu\n", offset, em->start, em->len); | |
798 | goto out; | |
799 | } | |
800 | if (em->flags != 0) { | |
801 | test_msg("Unexpected flags set, want 0 have %lu\n", em->flags); | |
802 | goto out; | |
803 | } | |
804 | if (em->orig_start != em->start) { | |
805 | test_msg("Wrong orig offset, want %llu, have %llu\n", em->start, | |
806 | em->orig_start); | |
807 | goto out; | |
808 | } | |
809 | ret = 0; | |
810 | out: | |
811 | if (!IS_ERR(em)) | |
812 | free_extent_map(em); | |
813 | iput(inode); | |
faa2dbf0 | 814 | btrfs_free_dummy_root(root); |
aaedb55b JB |
815 | return ret; |
816 | } | |
817 | ||
0e30db86 JB |
818 | static int test_hole_first(void) |
819 | { | |
820 | struct inode *inode = NULL; | |
821 | struct btrfs_root *root = NULL; | |
822 | struct extent_map *em = NULL; | |
823 | int ret = -ENOMEM; | |
824 | ||
825 | inode = btrfs_new_test_inode(); | |
826 | if (!inode) { | |
827 | test_msg("Couldn't allocate inode\n"); | |
828 | return ret; | |
829 | } | |
830 | ||
831 | BTRFS_I(inode)->location.type = BTRFS_INODE_ITEM_KEY; | |
832 | BTRFS_I(inode)->location.objectid = BTRFS_FIRST_FREE_OBJECTID; | |
833 | BTRFS_I(inode)->location.offset = 0; | |
834 | ||
835 | root = btrfs_alloc_dummy_root(); | |
836 | if (IS_ERR(root)) { | |
837 | test_msg("Couldn't allocate root\n"); | |
838 | goto out; | |
839 | } | |
840 | ||
faa2dbf0 | 841 | root->fs_info = btrfs_alloc_dummy_fs_info(); |
0e30db86 JB |
842 | if (!root->fs_info) { |
843 | test_msg("Couldn't allocate dummy fs info\n"); | |
844 | goto out; | |
845 | } | |
846 | ||
3f556f78 | 847 | root->node = alloc_dummy_extent_buffer(NULL, 4096); |
0e30db86 JB |
848 | if (!root->node) { |
849 | test_msg("Couldn't allocate dummy buffer\n"); | |
850 | goto out; | |
851 | } | |
852 | ||
853 | extent_buffer_get(root->node); | |
854 | btrfs_set_header_nritems(root->node, 0); | |
855 | btrfs_set_header_level(root->node, 0); | |
856 | BTRFS_I(inode)->root = root; | |
857 | ret = -EINVAL; | |
858 | ||
859 | /* | |
860 | * Need a blank inode item here just so we don't confuse | |
861 | * btrfs_get_extent. | |
862 | */ | |
863 | insert_inode_item_key(root); | |
864 | insert_extent(root, 4096, 4096, 4096, 0, 4096, 4096, | |
865 | BTRFS_FILE_EXTENT_REG, 0, 1); | |
866 | em = btrfs_get_extent(inode, NULL, 0, 0, 8192, 0); | |
867 | if (IS_ERR(em)) { | |
868 | test_msg("Got an error when we shouldn't have\n"); | |
869 | goto out; | |
870 | } | |
871 | if (em->block_start != EXTENT_MAP_HOLE) { | |
872 | test_msg("Expected a hole, got %llu\n", em->block_start); | |
873 | goto out; | |
874 | } | |
875 | if (em->start != 0 || em->len != 4096) { | |
876 | test_msg("Unexpected extent wanted start 0 len 4096, got start " | |
877 | "%llu len %llu\n", em->start, em->len); | |
878 | goto out; | |
879 | } | |
880 | if (em->flags != vacancy_only) { | |
881 | test_msg("Wrong flags, wanted %lu, have %lu\n", vacancy_only, | |
882 | em->flags); | |
883 | goto out; | |
884 | } | |
885 | free_extent_map(em); | |
886 | ||
887 | em = btrfs_get_extent(inode, NULL, 0, 4096, 8192, 0); | |
888 | if (IS_ERR(em)) { | |
889 | test_msg("Got an error when we shouldn't have\n"); | |
890 | goto out; | |
891 | } | |
892 | if (em->block_start != 4096) { | |
893 | test_msg("Expected a real extent, got %llu\n", em->block_start); | |
894 | goto out; | |
895 | } | |
896 | if (em->start != 4096 || em->len != 4096) { | |
897 | test_msg("Unexpected extent wanted start 4096 len 4096, got " | |
898 | "start %llu len %llu\n", em->start, em->len); | |
899 | goto out; | |
900 | } | |
901 | if (em->flags != 0) { | |
902 | test_msg("Unexpected flags set, wanted 0 got %lu\n", | |
903 | em->flags); | |
904 | goto out; | |
905 | } | |
906 | ret = 0; | |
907 | out: | |
908 | if (!IS_ERR(em)) | |
909 | free_extent_map(em); | |
910 | iput(inode); | |
faa2dbf0 | 911 | btrfs_free_dummy_root(root); |
0e30db86 JB |
912 | return ret; |
913 | } | |
914 | ||
6a3891c5 JB |
915 | static int test_extent_accounting(void) |
916 | { | |
917 | struct inode *inode = NULL; | |
918 | struct btrfs_root *root = NULL; | |
919 | int ret = -ENOMEM; | |
920 | ||
921 | inode = btrfs_new_test_inode(); | |
922 | if (!inode) { | |
923 | test_msg("Couldn't allocate inode\n"); | |
924 | return ret; | |
925 | } | |
926 | ||
927 | root = btrfs_alloc_dummy_root(); | |
928 | if (IS_ERR(root)) { | |
929 | test_msg("Couldn't allocate root\n"); | |
930 | goto out; | |
931 | } | |
932 | ||
933 | root->fs_info = btrfs_alloc_dummy_fs_info(); | |
934 | if (!root->fs_info) { | |
935 | test_msg("Couldn't allocate dummy fs info\n"); | |
936 | goto out; | |
937 | } | |
938 | ||
939 | BTRFS_I(inode)->root = root; | |
940 | btrfs_test_inode_set_ops(inode); | |
941 | ||
942 | /* [BTRFS_MAX_EXTENT_SIZE] */ | |
943 | BTRFS_I(inode)->outstanding_extents++; | |
944 | ret = btrfs_set_extent_delalloc(inode, 0, BTRFS_MAX_EXTENT_SIZE - 1, | |
945 | NULL); | |
946 | if (ret) { | |
947 | test_msg("btrfs_set_extent_delalloc returned %d\n", ret); | |
948 | goto out; | |
949 | } | |
950 | if (BTRFS_I(inode)->outstanding_extents != 1) { | |
951 | ret = -EINVAL; | |
952 | test_msg("Miscount, wanted 1, got %u\n", | |
953 | BTRFS_I(inode)->outstanding_extents); | |
954 | goto out; | |
955 | } | |
956 | ||
957 | /* [BTRFS_MAX_EXTENT_SIZE][4k] */ | |
958 | BTRFS_I(inode)->outstanding_extents++; | |
959 | ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE, | |
960 | BTRFS_MAX_EXTENT_SIZE + 4095, NULL); | |
961 | if (ret) { | |
962 | test_msg("btrfs_set_extent_delalloc returned %d\n", ret); | |
963 | goto out; | |
964 | } | |
965 | if (BTRFS_I(inode)->outstanding_extents != 2) { | |
966 | ret = -EINVAL; | |
967 | test_msg("Miscount, wanted 2, got %u\n", | |
968 | BTRFS_I(inode)->outstanding_extents); | |
969 | goto out; | |
970 | } | |
971 | ||
972 | /* [BTRFS_MAX_EXTENT_SIZE/2][4K HOLE][the rest] */ | |
973 | ret = clear_extent_bit(&BTRFS_I(inode)->io_tree, | |
974 | BTRFS_MAX_EXTENT_SIZE >> 1, | |
975 | (BTRFS_MAX_EXTENT_SIZE >> 1) + 4095, | |
976 | EXTENT_DELALLOC | EXTENT_DIRTY | | |
977 | EXTENT_UPTODATE | EXTENT_DO_ACCOUNTING, 0, 0, | |
8cce83ba | 978 | NULL, GFP_KERNEL); |
6a3891c5 JB |
979 | if (ret) { |
980 | test_msg("clear_extent_bit returned %d\n", ret); | |
981 | goto out; | |
982 | } | |
983 | if (BTRFS_I(inode)->outstanding_extents != 2) { | |
984 | ret = -EINVAL; | |
985 | test_msg("Miscount, wanted 2, got %u\n", | |
986 | BTRFS_I(inode)->outstanding_extents); | |
987 | goto out; | |
988 | } | |
989 | ||
990 | /* [BTRFS_MAX_EXTENT_SIZE][4K] */ | |
991 | BTRFS_I(inode)->outstanding_extents++; | |
992 | ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE >> 1, | |
993 | (BTRFS_MAX_EXTENT_SIZE >> 1) + 4095, | |
994 | NULL); | |
995 | if (ret) { | |
996 | test_msg("btrfs_set_extent_delalloc returned %d\n", ret); | |
997 | goto out; | |
998 | } | |
999 | if (BTRFS_I(inode)->outstanding_extents != 2) { | |
1000 | ret = -EINVAL; | |
1001 | test_msg("Miscount, wanted 2, got %u\n", | |
1002 | BTRFS_I(inode)->outstanding_extents); | |
1003 | goto out; | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * [BTRFS_MAX_EXTENT_SIZE+4K][4K HOLE][BTRFS_MAX_EXTENT_SIZE+4K] | |
1008 | * | |
1009 | * I'm artificially adding 2 to outstanding_extents because in the | |
1010 | * buffered IO case we'd add things up as we go, but I don't feel like | |
1011 | * doing that here, this isn't the interesting case we want to test. | |
1012 | */ | |
1013 | BTRFS_I(inode)->outstanding_extents += 2; | |
1014 | ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE + 8192, | |
1015 | (BTRFS_MAX_EXTENT_SIZE << 1) + 12287, | |
1016 | NULL); | |
1017 | if (ret) { | |
1018 | test_msg("btrfs_set_extent_delalloc returned %d\n", ret); | |
1019 | goto out; | |
1020 | } | |
1021 | if (BTRFS_I(inode)->outstanding_extents != 4) { | |
1022 | ret = -EINVAL; | |
1023 | test_msg("Miscount, wanted 4, got %u\n", | |
1024 | BTRFS_I(inode)->outstanding_extents); | |
1025 | goto out; | |
1026 | } | |
1027 | ||
1028 | /* [BTRFS_MAX_EXTENT_SIZE+4k][4k][BTRFS_MAX_EXTENT_SIZE+4k] */ | |
1029 | BTRFS_I(inode)->outstanding_extents++; | |
1030 | ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE+4096, | |
1031 | BTRFS_MAX_EXTENT_SIZE+8191, NULL); | |
1032 | if (ret) { | |
1033 | test_msg("btrfs_set_extent_delalloc returned %d\n", ret); | |
1034 | goto out; | |
1035 | } | |
1036 | if (BTRFS_I(inode)->outstanding_extents != 3) { | |
1037 | ret = -EINVAL; | |
1038 | test_msg("Miscount, wanted 3, got %u\n", | |
1039 | BTRFS_I(inode)->outstanding_extents); | |
1040 | goto out; | |
1041 | } | |
1042 | ||
1043 | /* [BTRFS_MAX_EXTENT_SIZE+4k][4K HOLE][BTRFS_MAX_EXTENT_SIZE+4k] */ | |
1044 | ret = clear_extent_bit(&BTRFS_I(inode)->io_tree, | |
1045 | BTRFS_MAX_EXTENT_SIZE+4096, | |
1046 | BTRFS_MAX_EXTENT_SIZE+8191, | |
1047 | EXTENT_DIRTY | EXTENT_DELALLOC | | |
1048 | EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0, | |
8cce83ba | 1049 | NULL, GFP_KERNEL); |
6a3891c5 JB |
1050 | if (ret) { |
1051 | test_msg("clear_extent_bit returned %d\n", ret); | |
1052 | goto out; | |
1053 | } | |
1054 | if (BTRFS_I(inode)->outstanding_extents != 4) { | |
1055 | ret = -EINVAL; | |
1056 | test_msg("Miscount, wanted 4, got %u\n", | |
1057 | BTRFS_I(inode)->outstanding_extents); | |
1058 | goto out; | |
1059 | } | |
1060 | ||
1061 | /* | |
1062 | * Refill the hole again just for good measure, because I thought it | |
1063 | * might fail and I'd rather satisfy my paranoia at this point. | |
1064 | */ | |
1065 | BTRFS_I(inode)->outstanding_extents++; | |
1066 | ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE+4096, | |
1067 | BTRFS_MAX_EXTENT_SIZE+8191, NULL); | |
1068 | if (ret) { | |
1069 | test_msg("btrfs_set_extent_delalloc returned %d\n", ret); | |
1070 | goto out; | |
1071 | } | |
1072 | if (BTRFS_I(inode)->outstanding_extents != 3) { | |
1073 | ret = -EINVAL; | |
1074 | test_msg("Miscount, wanted 3, got %u\n", | |
1075 | BTRFS_I(inode)->outstanding_extents); | |
1076 | goto out; | |
1077 | } | |
1078 | ||
1079 | /* Empty */ | |
1080 | ret = clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1, | |
1081 | EXTENT_DIRTY | EXTENT_DELALLOC | | |
1082 | EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0, | |
8cce83ba | 1083 | NULL, GFP_KERNEL); |
6a3891c5 JB |
1084 | if (ret) { |
1085 | test_msg("clear_extent_bit returned %d\n", ret); | |
1086 | goto out; | |
1087 | } | |
1088 | if (BTRFS_I(inode)->outstanding_extents) { | |
1089 | ret = -EINVAL; | |
1090 | test_msg("Miscount, wanted 0, got %u\n", | |
1091 | BTRFS_I(inode)->outstanding_extents); | |
1092 | goto out; | |
1093 | } | |
1094 | ret = 0; | |
1095 | out: | |
1096 | if (ret) | |
1097 | clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1, | |
1098 | EXTENT_DIRTY | EXTENT_DELALLOC | | |
1099 | EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0, | |
8cce83ba | 1100 | NULL, GFP_KERNEL); |
6a3891c5 JB |
1101 | iput(inode); |
1102 | btrfs_free_dummy_root(root); | |
1103 | return ret; | |
1104 | } | |
1105 | ||
aaedb55b JB |
1106 | int btrfs_test_inodes(void) |
1107 | { | |
0e30db86 JB |
1108 | int ret; |
1109 | ||
1110 | set_bit(EXTENT_FLAG_COMPRESSED, &compressed_only); | |
1111 | set_bit(EXTENT_FLAG_VACANCY, &vacancy_only); | |
1112 | set_bit(EXTENT_FLAG_PREALLOC, &prealloc_only); | |
1113 | ||
aaedb55b | 1114 | test_msg("Running btrfs_get_extent tests\n"); |
0e30db86 JB |
1115 | ret = test_btrfs_get_extent(); |
1116 | if (ret) | |
1117 | return ret; | |
1118 | test_msg("Running hole first btrfs_get_extent test\n"); | |
6a3891c5 JB |
1119 | ret = test_hole_first(); |
1120 | if (ret) | |
1121 | return ret; | |
1122 | test_msg("Running outstanding_extents tests\n"); | |
1123 | return test_extent_accounting(); | |
aaedb55b | 1124 | } |