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