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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | ||
4 | #include "cls/rbd/cls_rbd_types.h" | |
5 | #include "test/librbd/test_fixture.h" | |
6 | #include "test/librbd/test_support.h" | |
7 | #include "include/rbd/librbd.h" | |
8 | #include "librbd/ExclusiveLock.h" | |
9 | #include "librbd/ImageState.h" | |
10 | #include "librbd/ImageWatcher.h" | |
11 | #include "librbd/internal.h" | |
12 | #include "librbd/ObjectMap.h" | |
13 | #include "librbd/Operations.h" | |
14 | #include "librbd/api/DiffIterate.h" | |
15 | #include "librbd/io/AioCompletion.h" | |
16 | #include "librbd/io/ImageRequest.h" | |
17 | #include "librbd/io/ImageRequestWQ.h" | |
18 | #include "osdc/Striper.h" | |
19 | #include <boost/scope_exit.hpp> | |
20 | #include <boost/assign/list_of.hpp> | |
21 | #include <utility> | |
22 | #include <vector> | |
23 | ||
24 | void register_test_internal() { | |
25 | } | |
26 | ||
27 | class TestInternal : public TestFixture { | |
28 | public: | |
29 | ||
30 | TestInternal() {} | |
31 | ||
32 | typedef std::vector<std::pair<std::string, bool> > Snaps; | |
33 | ||
34 | void TearDown() override { | |
35 | unlock_image(); | |
36 | for (Snaps::iterator iter = m_snaps.begin(); iter != m_snaps.end(); ++iter) { | |
37 | librbd::ImageCtx *ictx; | |
38 | EXPECT_EQ(0, open_image(m_image_name, &ictx)); | |
39 | if (iter->second) { | |
40 | EXPECT_EQ(0, | |
41 | ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), | |
42 | iter->first.c_str())); | |
43 | } | |
44 | EXPECT_EQ(0, | |
45 | ictx->operations->snap_remove(cls::rbd::UserSnapshotNamespace(), | |
46 | iter->first.c_str())); | |
47 | } | |
48 | ||
49 | TestFixture::TearDown(); | |
50 | } | |
51 | ||
52 | int create_snapshot(const char *snap_name, bool snap_protect) { | |
53 | librbd::ImageCtx *ictx; | |
54 | int r = open_image(m_image_name, &ictx); | |
55 | if (r < 0) { | |
56 | return r; | |
57 | } | |
58 | ||
59 | r = snap_create(*ictx, snap_name); | |
60 | if (r < 0) { | |
61 | return r; | |
62 | } | |
63 | ||
64 | m_snaps.push_back(std::make_pair(snap_name, snap_protect)); | |
65 | if (snap_protect) { | |
66 | r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name); | |
67 | if (r < 0) { | |
68 | return r; | |
69 | } | |
70 | } | |
71 | close_image(ictx); | |
72 | return 0; | |
73 | } | |
74 | ||
75 | Snaps m_snaps; | |
76 | }; | |
77 | ||
78 | class DummyContext : public Context { | |
79 | public: | |
80 | void finish(int r) override { | |
81 | } | |
82 | }; | |
83 | ||
84 | void generate_random_iomap(librbd::Image &image, int num_objects, int object_size, | |
85 | int max_count, map<uint64_t, uint64_t> &iomap) | |
86 | { | |
87 | uint64_t stripe_unit, stripe_count; | |
88 | ||
89 | stripe_unit = image.get_stripe_unit(); | |
90 | stripe_count = image.get_stripe_count(); | |
91 | ||
92 | while (max_count-- > 0) { | |
93 | // generate random image offset based on base random object | |
94 | // number and object offset and then map that back to an | |
95 | // object number based on stripe unit and count. | |
96 | uint64_t ono = rand() % num_objects; | |
97 | uint64_t offset = rand() % (object_size - TEST_IO_SIZE); | |
98 | uint64_t imageoff = (ono * object_size) + offset; | |
99 | ||
100 | file_layout_t layout; | |
101 | layout.object_size = object_size; | |
102 | layout.stripe_unit = stripe_unit; | |
103 | layout.stripe_count = stripe_count; | |
104 | ||
105 | vector<ObjectExtent> ex; | |
106 | Striper::file_to_extents(g_ceph_context, 1, &layout, imageoff, TEST_IO_SIZE, 0, ex); | |
107 | ||
108 | // lets not worry if IO spans multiple extents (>1 object). in such | |
109 | // as case we would perform the write multiple times to the same | |
110 | // offset, but we record all objects that would be generated with | |
111 | // this IO. TODO: fix this if such a need is required by your | |
112 | // test. | |
113 | vector<ObjectExtent>::iterator it; | |
114 | map<uint64_t, uint64_t> curr_iomap; | |
115 | for (it = ex.begin(); it != ex.end(); ++it) { | |
116 | if (iomap.find((*it).objectno) != iomap.end()) { | |
117 | break; | |
118 | } | |
119 | ||
120 | curr_iomap.insert(make_pair((*it).objectno, imageoff)); | |
121 | } | |
122 | ||
123 | if (it == ex.end()) { | |
124 | iomap.insert(curr_iomap.begin(), curr_iomap.end()); | |
125 | } | |
126 | } | |
127 | } | |
128 | ||
129 | TEST_F(TestInternal, OpenByID) { | |
130 | REQUIRE_FORMAT_V2(); | |
131 | ||
132 | librbd::ImageCtx *ictx; | |
133 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
134 | std::string id = ictx->id; | |
135 | close_image(ictx); | |
136 | ||
137 | ictx = new librbd::ImageCtx("", id, nullptr, m_ioctx, true); | |
138 | ASSERT_EQ(0, ictx->state->open(false)); | |
139 | ASSERT_EQ(ictx->name, m_image_name); | |
140 | close_image(ictx); | |
141 | } | |
142 | ||
143 | TEST_F(TestInternal, IsExclusiveLockOwner) { | |
144 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
145 | ||
146 | librbd::ImageCtx *ictx; | |
147 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
148 | ||
149 | bool is_owner; | |
150 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
151 | ASSERT_FALSE(is_owner); | |
152 | ||
153 | C_SaferCond ctx; | |
154 | { | |
155 | RWLock::WLocker l(ictx->owner_lock); | |
156 | ictx->exclusive_lock->try_acquire_lock(&ctx); | |
157 | } | |
158 | ASSERT_EQ(0, ctx.wait()); | |
159 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
160 | ASSERT_TRUE(is_owner); | |
161 | } | |
162 | ||
163 | TEST_F(TestInternal, ResizeLocksImage) { | |
164 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
165 | ||
166 | librbd::ImageCtx *ictx; | |
167 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
168 | ||
169 | librbd::NoOpProgressContext no_op; | |
170 | ASSERT_EQ(0, ictx->operations->resize(m_image_size >> 1, true, no_op)); | |
171 | ||
172 | bool is_owner; | |
173 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
174 | ASSERT_TRUE(is_owner); | |
175 | } | |
176 | ||
177 | TEST_F(TestInternal, ResizeFailsToLockImage) { | |
178 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
179 | ||
180 | librbd::ImageCtx *ictx; | |
181 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
182 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
183 | ||
184 | librbd::NoOpProgressContext no_op; | |
185 | ASSERT_EQ(-EROFS, ictx->operations->resize(m_image_size >> 1, true, no_op)); | |
186 | } | |
187 | ||
188 | TEST_F(TestInternal, SnapCreateLocksImage) { | |
189 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
190 | ||
191 | librbd::ImageCtx *ictx; | |
192 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
193 | ||
194 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
195 | BOOST_SCOPE_EXIT( (ictx) ) { | |
196 | ASSERT_EQ(0, | |
197 | ictx->operations->snap_remove(cls::rbd::UserSnapshotNamespace(), | |
198 | "snap1")); | |
199 | } BOOST_SCOPE_EXIT_END; | |
200 | ||
201 | bool is_owner; | |
202 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
203 | ASSERT_TRUE(is_owner); | |
204 | } | |
205 | ||
206 | TEST_F(TestInternal, SnapCreateFailsToLockImage) { | |
207 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
208 | ||
209 | librbd::ImageCtx *ictx; | |
210 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
211 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
212 | ||
213 | ASSERT_EQ(-EROFS, snap_create(*ictx, "snap1")); | |
214 | } | |
215 | ||
216 | TEST_F(TestInternal, SnapRollbackLocksImage) { | |
217 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
218 | ||
219 | ASSERT_EQ(0, create_snapshot("snap1", false)); | |
220 | ||
221 | librbd::ImageCtx *ictx; | |
222 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
223 | ||
224 | librbd::NoOpProgressContext no_op; | |
225 | ASSERT_EQ(0, ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), | |
226 | "snap1", | |
227 | no_op)); | |
228 | ||
229 | bool is_owner; | |
230 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
231 | ASSERT_TRUE(is_owner); | |
232 | } | |
233 | ||
234 | TEST_F(TestInternal, SnapRollbackFailsToLockImage) { | |
235 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
236 | ||
237 | ||
238 | ASSERT_EQ(0, create_snapshot("snap1", false)); | |
239 | ||
240 | librbd::ImageCtx *ictx; | |
241 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
242 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
243 | ||
244 | librbd::NoOpProgressContext no_op; | |
245 | ASSERT_EQ(-EROFS, | |
246 | ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), | |
247 | "snap1", | |
248 | no_op)); | |
249 | } | |
250 | ||
251 | TEST_F(TestInternal, SnapSetReleasesLock) { | |
252 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
253 | ||
254 | ASSERT_EQ(0, create_snapshot("snap1", false)); | |
255 | ||
256 | librbd::ImageCtx *ictx; | |
257 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
258 | ASSERT_EQ(0, librbd::snap_set(ictx, cls::rbd::UserSnapshotNamespace(), "snap1")); | |
259 | ||
260 | bool is_owner; | |
261 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
262 | ASSERT_FALSE(is_owner); | |
263 | } | |
264 | ||
265 | TEST_F(TestInternal, FlattenLocksImage) { | |
266 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_LAYERING); | |
267 | ||
268 | ASSERT_EQ(0, create_snapshot("snap1", true)); | |
269 | ||
270 | librbd::ImageCtx *ictx; | |
271 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
272 | ||
273 | uint64_t features; | |
274 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
275 | ||
276 | std::string clone_name = get_temp_image_name(); | |
277 | int order = ictx->order; | |
278 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
279 | clone_name.c_str(), features, &order, 0, 0)); | |
280 | ||
281 | librbd::ImageCtx *ictx2; | |
282 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
283 | ||
284 | librbd::NoOpProgressContext no_op; | |
285 | ASSERT_EQ(0, ictx2->operations->flatten(no_op)); | |
286 | ||
287 | bool is_owner; | |
288 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx2, &is_owner)); | |
289 | ASSERT_TRUE(is_owner); | |
290 | } | |
291 | ||
292 | TEST_F(TestInternal, FlattenFailsToLockImage) { | |
293 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_LAYERING); | |
294 | ||
295 | ASSERT_EQ(0, create_snapshot("snap1", true)); | |
296 | ||
297 | librbd::ImageCtx *ictx; | |
298 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
299 | ||
300 | uint64_t features; | |
301 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
302 | ||
303 | std::string clone_name = get_temp_image_name(); | |
304 | int order = ictx->order; | |
305 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
306 | clone_name.c_str(), features, &order, 0, 0)); | |
307 | ||
308 | TestInternal *parent = this; | |
309 | librbd::ImageCtx *ictx2 = NULL; | |
310 | BOOST_SCOPE_EXIT( (&m_ioctx) (clone_name) (parent) (&ictx2) ) { | |
311 | if (ictx2 != NULL) { | |
312 | parent->close_image(ictx2); | |
313 | parent->unlock_image(); | |
314 | } | |
315 | librbd::NoOpProgressContext no_op; | |
316 | ASSERT_EQ(0, librbd::remove(m_ioctx, clone_name, "", no_op)); | |
317 | } BOOST_SCOPE_EXIT_END; | |
318 | ||
319 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
320 | ASSERT_EQ(0, lock_image(*ictx2, LOCK_EXCLUSIVE, "manually locked")); | |
321 | ||
322 | librbd::NoOpProgressContext no_op; | |
323 | ASSERT_EQ(-EROFS, ictx2->operations->flatten(no_op)); | |
324 | } | |
325 | ||
326 | TEST_F(TestInternal, AioWriteRequestsLock) { | |
327 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
328 | ||
329 | librbd::ImageCtx *ictx; | |
330 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
331 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
332 | ||
333 | std::string buffer(256, '1'); | |
334 | Context *ctx = new DummyContext(); | |
335 | auto c = librbd::io::AioCompletion::create(ctx); | |
336 | c->get(); | |
337 | ||
338 | bufferlist bl; | |
339 | bl.append(buffer); | |
340 | ictx->io_work_queue->aio_write(c, 0, buffer.size(), std::move(bl), 0); | |
341 | ||
342 | bool is_owner; | |
343 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
344 | ASSERT_FALSE(is_owner); | |
345 | ASSERT_FALSE(c->is_complete()); | |
346 | ||
347 | unlock_image(); | |
348 | ASSERT_EQ(0, c->wait_for_complete()); | |
349 | c->put(); | |
350 | } | |
351 | ||
352 | TEST_F(TestInternal, AioDiscardRequestsLock) { | |
353 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
354 | ||
355 | librbd::ImageCtx *ictx; | |
356 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
357 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
358 | ||
359 | Context *ctx = new DummyContext(); | |
360 | auto c = librbd::io::AioCompletion::create(ctx); | |
361 | c->get(); | |
362 | ictx->io_work_queue->aio_discard(c, 0, 256, false); | |
363 | ||
364 | bool is_owner; | |
365 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
366 | ASSERT_FALSE(is_owner); | |
367 | ASSERT_FALSE(c->is_complete()); | |
368 | ||
369 | unlock_image(); | |
370 | ASSERT_EQ(0, c->wait_for_complete()); | |
371 | c->put(); | |
372 | } | |
373 | ||
374 | TEST_F(TestInternal, CancelAsyncResize) { | |
375 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
376 | ||
377 | librbd::ImageCtx *ictx; | |
378 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
379 | ||
380 | C_SaferCond ctx; | |
381 | { | |
382 | RWLock::WLocker l(ictx->owner_lock); | |
383 | ictx->exclusive_lock->try_acquire_lock(&ctx); | |
384 | } | |
385 | ||
386 | ASSERT_EQ(0, ctx.wait()); | |
387 | { | |
388 | RWLock::RLocker owner_locker(ictx->owner_lock); | |
389 | ASSERT_TRUE(ictx->exclusive_lock->is_lock_owner()); | |
390 | } | |
391 | ||
392 | uint64_t size; | |
393 | ASSERT_EQ(0, librbd::get_size(ictx, &size)); | |
394 | ||
395 | uint32_t attempts = 0; | |
396 | while (attempts++ < 20 && size > 0) { | |
397 | C_SaferCond ctx; | |
398 | librbd::NoOpProgressContext prog_ctx; | |
399 | ||
400 | size -= MIN(size, 1<<18); | |
401 | { | |
402 | RWLock::RLocker l(ictx->owner_lock); | |
403 | ictx->operations->execute_resize(size, true, prog_ctx, &ctx, 0); | |
404 | } | |
405 | ||
406 | // try to interrupt the in-progress resize | |
407 | ictx->cancel_async_requests(); | |
408 | ||
409 | int r = ctx.wait(); | |
410 | if (r == -ERESTART) { | |
411 | std::cout << "detected canceled async request" << std::endl; | |
412 | break; | |
413 | } | |
414 | ASSERT_EQ(0, r); | |
415 | } | |
416 | } | |
417 | ||
418 | TEST_F(TestInternal, MultipleResize) { | |
419 | librbd::ImageCtx *ictx; | |
420 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
421 | ||
422 | if (ictx->exclusive_lock != nullptr) { | |
423 | C_SaferCond ctx; | |
424 | { | |
425 | RWLock::WLocker l(ictx->owner_lock); | |
426 | ictx->exclusive_lock->try_acquire_lock(&ctx); | |
427 | } | |
428 | ||
429 | RWLock::RLocker owner_locker(ictx->owner_lock); | |
430 | ASSERT_EQ(0, ctx.wait()); | |
431 | ASSERT_TRUE(ictx->exclusive_lock->is_lock_owner()); | |
432 | } | |
433 | ||
434 | uint64_t size; | |
435 | ASSERT_EQ(0, librbd::get_size(ictx, &size)); | |
436 | uint64_t original_size = size; | |
437 | ||
438 | std::vector<C_SaferCond*> contexts; | |
439 | ||
440 | uint32_t attempts = 0; | |
441 | librbd::NoOpProgressContext prog_ctx; | |
442 | while (size > 0) { | |
443 | uint64_t new_size = original_size; | |
444 | if (attempts++ % 2 == 0) { | |
445 | size -= MIN(size, 1<<18); | |
446 | new_size = size; | |
447 | } | |
448 | ||
449 | RWLock::RLocker l(ictx->owner_lock); | |
450 | contexts.push_back(new C_SaferCond()); | |
451 | ictx->operations->execute_resize(new_size, true, prog_ctx, contexts.back(), 0); | |
452 | } | |
453 | ||
454 | for (uint32_t i = 0; i < contexts.size(); ++i) { | |
455 | ASSERT_EQ(0, contexts[i]->wait()); | |
456 | delete contexts[i]; | |
457 | } | |
458 | ||
459 | ASSERT_EQ(0, librbd::get_size(ictx, &size)); | |
460 | ASSERT_EQ(0U, size); | |
461 | } | |
462 | ||
463 | TEST_F(TestInternal, Metadata) { | |
464 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
465 | ||
466 | map<string, bool> test_confs = boost::assign::map_list_of( | |
467 | "aaaaaaa", false)( | |
468 | "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", false)( | |
469 | "cccccccccccccc", false); | |
470 | map<string, bool>::iterator it = test_confs.begin(); | |
471 | int r; | |
472 | librbd::ImageCtx *ictx; | |
473 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
474 | ||
475 | r = ictx->operations->metadata_set(it->first, "value1"); | |
476 | ASSERT_EQ(0, r); | |
477 | ++it; | |
478 | r = ictx->operations->metadata_set(it->first, "value2"); | |
479 | ASSERT_EQ(0, r); | |
480 | ++it; | |
481 | r = ictx->operations->metadata_set(it->first, "value3"); | |
482 | ASSERT_EQ(0, r); | |
483 | r = ictx->operations->metadata_set("abcd", "value4"); | |
484 | ASSERT_EQ(0, r); | |
485 | r = ictx->operations->metadata_set("xyz", "value5"); | |
486 | ASSERT_EQ(0, r); | |
487 | map<string, bufferlist> pairs; | |
488 | r = librbd::metadata_list(ictx, "", 0, &pairs); | |
489 | ASSERT_EQ(0, r); | |
490 | ASSERT_EQ(5u, pairs.size()); | |
491 | r = ictx->operations->metadata_remove("abcd"); | |
492 | ASSERT_EQ(0, r); | |
493 | r = ictx->operations->metadata_remove("xyz"); | |
494 | ASSERT_EQ(0, r); | |
495 | pairs.clear(); | |
496 | r = librbd::metadata_list(ictx, "", 0, &pairs); | |
497 | ASSERT_EQ(0, r); | |
498 | ASSERT_EQ(3u, pairs.size()); | |
499 | string val; | |
500 | r = librbd::metadata_get(ictx, it->first, &val); | |
501 | ASSERT_EQ(0, r); | |
502 | ASSERT_STREQ(val.c_str(), "value3"); | |
503 | } | |
504 | ||
505 | TEST_F(TestInternal, MetadataFilter) { | |
506 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
507 | ||
508 | map<string, bool> test_confs = boost::assign::map_list_of( | |
509 | "aaaaaaa", false)( | |
510 | "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", false)( | |
511 | "cccccccccccccc", false); | |
512 | map<string, bool>::iterator it = test_confs.begin(); | |
513 | const string prefix = "test_config_"; | |
514 | bool is_continue; | |
515 | librbd::ImageCtx *ictx; | |
516 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
517 | ||
518 | librbd::Image image1; | |
519 | map<string, bufferlist> pairs, res; | |
520 | pairs["abc"].append("value"); | |
521 | pairs["abcabc"].append("value"); | |
522 | pairs[prefix+it->first].append("value1"); | |
523 | ++it; | |
524 | pairs[prefix+it->first].append("value2"); | |
525 | ++it; | |
526 | pairs[prefix+it->first].append("value3"); | |
527 | pairs[prefix+"asdfsdaf"].append("value6"); | |
528 | pairs[prefix+"zxvzxcv123"].append("value5"); | |
529 | ||
530 | is_continue = ictx->_filter_metadata_confs(prefix, test_confs, pairs, &res); | |
531 | ASSERT_TRUE(is_continue); | |
532 | ASSERT_TRUE(res.size() == 3U); | |
533 | it = test_confs.begin(); | |
534 | ASSERT_TRUE(res.count(it->first)); | |
535 | ASSERT_TRUE(it->second); | |
536 | ++it; | |
537 | ASSERT_TRUE(res.count(it->first)); | |
538 | ASSERT_TRUE(it->second); | |
539 | ++it; | |
540 | ASSERT_TRUE(res.count(it->first)); | |
541 | ASSERT_TRUE(it->second); | |
542 | res.clear(); | |
543 | ||
544 | pairs["zzzzzzzz"].append("value7"); | |
545 | is_continue = ictx->_filter_metadata_confs(prefix, test_confs, pairs, &res); | |
546 | ASSERT_FALSE(is_continue); | |
547 | ASSERT_TRUE(res.size() == 3U); | |
548 | } | |
549 | ||
550 | TEST_F(TestInternal, SnapshotCopyup) | |
551 | { | |
552 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
553 | ||
554 | librbd::ImageCtx *ictx; | |
555 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
556 | ||
557 | bufferlist bl; | |
558 | bl.append(std::string(256, '1')); | |
559 | ASSERT_EQ(256, ictx->io_work_queue->write(0, bl.length(), bufferlist{bl}, 0)); | |
560 | ||
561 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
562 | ASSERT_EQ(0, | |
563 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
564 | "snap1")); | |
565 | ||
566 | uint64_t features; | |
567 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
568 | ||
569 | std::string clone_name = get_temp_image_name(); | |
570 | int order = ictx->order; | |
571 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
572 | clone_name.c_str(), features, &order, 0, 0)); | |
573 | ||
574 | librbd::ImageCtx *ictx2; | |
575 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
576 | ||
577 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
578 | ASSERT_EQ(0, snap_create(*ictx2, "snap2")); | |
579 | ||
580 | ASSERT_EQ(256, ictx2->io_work_queue->write(256, bl.length(), bufferlist{bl}, | |
581 | 0)); | |
582 | ||
583 | librados::IoCtx snap_ctx; | |
584 | snap_ctx.dup(ictx2->data_ctx); | |
585 | snap_ctx.snap_set_read(CEPH_SNAPDIR); | |
586 | ||
587 | librados::snap_set_t snap_set; | |
588 | ASSERT_EQ(0, snap_ctx.list_snaps(ictx2->get_object_name(0), &snap_set)); | |
589 | ||
590 | std::vector< std::pair<uint64_t,uint64_t> > expected_overlap = | |
591 | boost::assign::list_of( | |
592 | std::make_pair(0, 256))( | |
593 | std::make_pair(512, 2096640)); | |
594 | ASSERT_EQ(2U, snap_set.clones.size()); | |
595 | ASSERT_NE(CEPH_NOSNAP, snap_set.clones[0].cloneid); | |
596 | ASSERT_EQ(2U, snap_set.clones[0].snaps.size()); | |
597 | ASSERT_EQ(expected_overlap, snap_set.clones[0].overlap); | |
598 | ASSERT_EQ(CEPH_NOSNAP, snap_set.clones[1].cloneid); | |
599 | ||
600 | bufferptr read_ptr(256); | |
601 | bufferlist read_bl; | |
602 | read_bl.push_back(read_ptr); | |
603 | ||
604 | std::list<std::string> snaps = {"snap1", "snap2", ""}; | |
605 | librbd::io::ReadResult read_result{&read_bl}; | |
606 | for (std::list<std::string>::iterator it = snaps.begin(); | |
607 | it != snaps.end(); ++it) { | |
608 | const char *snap_name = it->empty() ? NULL : it->c_str(); | |
609 | ASSERT_EQ(0, librbd::snap_set(ictx2, | |
610 | cls::rbd::UserSnapshotNamespace(), | |
611 | snap_name)); | |
612 | ||
613 | ASSERT_EQ(256, | |
614 | ictx2->io_work_queue->read(0, 256, | |
615 | librbd::io::ReadResult{read_result}, | |
616 | 0)); | |
617 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
618 | ||
619 | ASSERT_EQ(256, | |
620 | ictx2->io_work_queue->read(256, 256, | |
621 | librbd::io::ReadResult{read_result}, | |
622 | 0)); | |
623 | if (snap_name == NULL) { | |
624 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
625 | } else { | |
626 | ASSERT_TRUE(read_bl.is_zero()); | |
627 | } | |
628 | ||
629 | // verify the object map was properly updated | |
630 | if ((ictx2->features & RBD_FEATURE_OBJECT_MAP) != 0) { | |
631 | uint8_t state = OBJECT_EXISTS; | |
632 | if ((ictx2->features & RBD_FEATURE_FAST_DIFF) != 0 && | |
633 | it != snaps.begin() && snap_name != NULL) { | |
634 | state = OBJECT_EXISTS_CLEAN; | |
635 | } | |
636 | ||
637 | librbd::ObjectMap<> object_map(*ictx2, ictx2->snap_id); | |
638 | C_SaferCond ctx; | |
639 | object_map.open(&ctx); | |
640 | ASSERT_EQ(0, ctx.wait()); | |
641 | ||
642 | RWLock::WLocker object_map_locker(ictx2->object_map_lock); | |
643 | ASSERT_EQ(state, object_map[0]); | |
644 | } | |
645 | } | |
646 | } | |
647 | ||
648 | TEST_F(TestInternal, ResizeCopyup) | |
649 | { | |
650 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
651 | ||
652 | m_image_name = get_temp_image_name(); | |
653 | m_image_size = 1 << 14; | |
654 | ||
655 | uint64_t features = 0; | |
656 | get_features(&features); | |
657 | int order = 12; | |
658 | ASSERT_EQ(0, m_rbd.create2(m_ioctx, m_image_name.c_str(), m_image_size, | |
659 | features, &order)); | |
660 | ||
661 | librbd::ImageCtx *ictx; | |
662 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
663 | ||
664 | bufferlist bl; | |
665 | bl.append(std::string(4096, '1')); | |
666 | for (size_t i = 0; i < m_image_size; i += bl.length()) { | |
667 | ASSERT_EQ((ssize_t)bl.length(), | |
668 | ictx->io_work_queue->write(i, bl.length(), | |
669 | bufferlist{bl}, 0)); | |
670 | } | |
671 | ||
672 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
673 | ASSERT_EQ(0, | |
674 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
675 | "snap1")); | |
676 | ||
677 | std::string clone_name = get_temp_image_name(); | |
678 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
679 | clone_name.c_str(), features, &order, 0, 0)); | |
680 | ||
681 | librbd::ImageCtx *ictx2; | |
682 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
683 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
684 | ||
685 | bufferptr read_ptr(bl.length()); | |
686 | bufferlist read_bl; | |
687 | read_bl.push_back(read_ptr); | |
688 | ||
689 | // verify full / partial object removal properly copyup | |
690 | librbd::NoOpProgressContext no_op; | |
691 | ASSERT_EQ(0, ictx2->operations->resize(m_image_size - (1 << order) - 32, | |
692 | true, no_op)); | |
693 | ASSERT_EQ(0, ictx2->operations->resize(m_image_size - (2 << order) - 32, | |
694 | true, no_op)); | |
695 | ASSERT_EQ(0, librbd::snap_set(ictx2, | |
696 | cls::rbd::UserSnapshotNamespace(), | |
697 | "snap1")); | |
698 | ||
699 | { | |
700 | // hide the parent from the snapshot | |
701 | RWLock::WLocker snap_locker(ictx2->snap_lock); | |
702 | ictx2->snap_info.begin()->second.parent = librbd::ParentInfo(); | |
703 | } | |
704 | ||
705 | librbd::io::ReadResult read_result{&read_bl}; | |
706 | for (size_t i = 2 << order; i < m_image_size; i += bl.length()) { | |
707 | ASSERT_EQ((ssize_t)bl.length(), | |
708 | ictx2->io_work_queue->read(i, bl.length(), | |
709 | librbd::io::ReadResult{read_result}, | |
710 | 0)); | |
711 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
712 | } | |
713 | } | |
714 | ||
715 | TEST_F(TestInternal, DiscardCopyup) | |
716 | { | |
717 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
718 | ||
719 | CephContext* cct = reinterpret_cast<CephContext*>(_rados.cct()); | |
720 | REQUIRE(!cct->_conf->rbd_skip_partial_discard); | |
721 | ||
722 | m_image_name = get_temp_image_name(); | |
723 | m_image_size = 1 << 14; | |
724 | ||
725 | uint64_t features = 0; | |
726 | get_features(&features); | |
727 | int order = 12; | |
728 | ASSERT_EQ(0, m_rbd.create2(m_ioctx, m_image_name.c_str(), m_image_size, | |
729 | features, &order)); | |
730 | ||
731 | librbd::ImageCtx *ictx; | |
732 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
733 | ||
734 | bufferlist bl; | |
735 | bl.append(std::string(4096, '1')); | |
736 | for (size_t i = 0; i < m_image_size; i += bl.length()) { | |
737 | ASSERT_EQ((ssize_t)bl.length(), | |
738 | ictx->io_work_queue->write(i, bl.length(), | |
739 | bufferlist{bl}, 0)); | |
740 | } | |
741 | ||
742 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
743 | ASSERT_EQ(0, | |
744 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
745 | "snap1")); | |
746 | ||
747 | std::string clone_name = get_temp_image_name(); | |
748 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
749 | clone_name.c_str(), features, &order, 0, 0)); | |
750 | ||
751 | librbd::ImageCtx *ictx2; | |
752 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
753 | ||
754 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
755 | ||
756 | bufferptr read_ptr(bl.length()); | |
757 | bufferlist read_bl; | |
758 | read_bl.push_back(read_ptr); | |
759 | ||
760 | ASSERT_EQ(static_cast<int>(m_image_size - 64), | |
761 | ictx2->io_work_queue->discard(32, m_image_size - 64, false)); | |
762 | ASSERT_EQ(0, librbd::snap_set(ictx2, | |
763 | cls::rbd::UserSnapshotNamespace(), | |
764 | "snap1")); | |
765 | ||
766 | { | |
767 | // hide the parent from the snapshot | |
768 | RWLock::WLocker snap_locker(ictx2->snap_lock); | |
769 | ictx2->snap_info.begin()->second.parent = librbd::ParentInfo(); | |
770 | } | |
771 | ||
772 | librbd::io::ReadResult read_result{&read_bl}; | |
773 | for (size_t i = 0; i < m_image_size; i += bl.length()) { | |
774 | ASSERT_EQ((ssize_t)bl.length(), | |
775 | ictx2->io_work_queue->read(i, bl.length(), | |
776 | librbd::io::ReadResult{read_result}, | |
777 | 0)); | |
778 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
779 | } | |
780 | } | |
781 | ||
782 | TEST_F(TestInternal, ShrinkFlushesCache) { | |
783 | librbd::ImageCtx *ictx; | |
784 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
785 | ||
786 | std::string buffer(4096, '1'); | |
787 | ||
788 | // ensure write-path is initialized | |
789 | bufferlist write_bl; | |
790 | write_bl.append(buffer); | |
791 | ictx->io_work_queue->write(0, buffer.size(), bufferlist{write_bl}, 0); | |
792 | ||
793 | C_SaferCond cond_ctx; | |
794 | auto c = librbd::io::AioCompletion::create(&cond_ctx); | |
795 | c->get(); | |
796 | ictx->io_work_queue->aio_write(c, 0, buffer.size(), bufferlist{write_bl}, 0); | |
797 | ||
798 | librbd::NoOpProgressContext no_op; | |
799 | ASSERT_EQ(0, ictx->operations->resize(m_image_size >> 1, true, no_op)); | |
800 | ||
801 | ASSERT_TRUE(c->is_complete()); | |
802 | ASSERT_EQ(0, c->wait_for_complete()); | |
803 | ASSERT_EQ(0, cond_ctx.wait()); | |
804 | c->put(); | |
805 | } | |
806 | ||
807 | TEST_F(TestInternal, ImageOptions) { | |
808 | rbd_image_options_t opts1 = NULL, opts2 = NULL; | |
809 | uint64_t uint64_val1 = 10, uint64_val2 = 0; | |
810 | std::string string_val1; | |
811 | ||
812 | librbd::image_options_create(&opts1); | |
813 | ASSERT_NE((rbd_image_options_t)NULL, opts1); | |
814 | ASSERT_TRUE(librbd::image_options_is_empty(opts1)); | |
815 | ||
816 | ASSERT_EQ(-EINVAL, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_FEATURES, | |
817 | &string_val1)); | |
818 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_FEATURES, | |
819 | &uint64_val1)); | |
820 | ||
821 | ASSERT_EQ(-EINVAL, librbd::image_options_set(opts1, RBD_IMAGE_OPTION_FEATURES, | |
822 | string_val1)); | |
823 | ||
824 | ASSERT_EQ(0, librbd::image_options_set(opts1, RBD_IMAGE_OPTION_FEATURES, | |
825 | uint64_val1)); | |
826 | ASSERT_FALSE(librbd::image_options_is_empty(opts1)); | |
827 | ASSERT_EQ(0, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_FEATURES, | |
828 | &uint64_val2)); | |
829 | ASSERT_EQ(uint64_val1, uint64_val2); | |
830 | ||
831 | librbd::image_options_create_ref(&opts2, opts1); | |
832 | ASSERT_NE((rbd_image_options_t)NULL, opts2); | |
833 | ASSERT_FALSE(librbd::image_options_is_empty(opts2)); | |
834 | ||
835 | uint64_val2 = 0; | |
836 | ASSERT_NE(uint64_val1, uint64_val2); | |
837 | ASSERT_EQ(0, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_FEATURES, | |
838 | &uint64_val2)); | |
839 | ASSERT_EQ(uint64_val1, uint64_val2); | |
840 | ||
841 | uint64_val2++; | |
842 | ASSERT_NE(uint64_val1, uint64_val2); | |
843 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_ORDER, | |
844 | &uint64_val1)); | |
845 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_ORDER, | |
846 | &uint64_val2)); | |
847 | ASSERT_EQ(0, librbd::image_options_set(opts2, RBD_IMAGE_OPTION_ORDER, | |
848 | uint64_val2)); | |
849 | ASSERT_EQ(0, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_ORDER, | |
850 | &uint64_val1)); | |
851 | ASSERT_EQ(0, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_ORDER, | |
852 | &uint64_val2)); | |
853 | ASSERT_EQ(uint64_val1, uint64_val2); | |
854 | ||
855 | librbd::image_options_destroy(opts1); | |
856 | ||
857 | uint64_val2++; | |
858 | ASSERT_NE(uint64_val1, uint64_val2); | |
859 | ASSERT_EQ(0, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_ORDER, | |
860 | &uint64_val2)); | |
861 | ASSERT_EQ(uint64_val1, uint64_val2); | |
862 | ||
863 | ASSERT_EQ(0, librbd::image_options_unset(opts2, RBD_IMAGE_OPTION_ORDER)); | |
864 | ASSERT_EQ(-ENOENT, librbd::image_options_unset(opts2, RBD_IMAGE_OPTION_ORDER)); | |
865 | ||
866 | librbd::image_options_clear(opts2); | |
867 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_FEATURES, | |
868 | &uint64_val2)); | |
869 | ASSERT_TRUE(librbd::image_options_is_empty(opts2)); | |
870 | ||
871 | librbd::image_options_destroy(opts2); | |
872 | } | |
873 | ||
874 | TEST_F(TestInternal, WriteFullCopyup) { | |
875 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
876 | ||
877 | librbd::ImageCtx *ictx; | |
878 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
879 | ||
880 | librbd::NoOpProgressContext no_op; | |
881 | ASSERT_EQ(0, ictx->operations->resize(1 << ictx->order, true, no_op)); | |
882 | ||
883 | bufferlist bl; | |
884 | bl.append(std::string(1 << ictx->order, '1')); | |
885 | ASSERT_EQ((ssize_t)bl.length(), | |
886 | ictx->io_work_queue->write(0, bl.length(), bufferlist{bl}, 0)); | |
887 | ASSERT_EQ(0, librbd::flush(ictx)); | |
888 | ||
889 | ASSERT_EQ(0, create_snapshot("snap1", true)); | |
890 | ||
891 | std::string clone_name = get_temp_image_name(); | |
892 | int order = ictx->order; | |
893 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
894 | clone_name.c_str(), ictx->features, &order, 0, 0)); | |
895 | ||
896 | TestInternal *parent = this; | |
897 | librbd::ImageCtx *ictx2 = NULL; | |
898 | BOOST_SCOPE_EXIT( (&m_ioctx) (clone_name) (parent) (&ictx2) ) { | |
899 | if (ictx2 != NULL) { | |
900 | ictx2->operations->snap_remove(cls::rbd::UserSnapshotNamespace(), | |
901 | "snap1"); | |
902 | parent->close_image(ictx2); | |
903 | } | |
904 | ||
905 | librbd::NoOpProgressContext remove_no_op; | |
906 | ASSERT_EQ(0, librbd::remove(m_ioctx, clone_name, "", remove_no_op)); | |
907 | } BOOST_SCOPE_EXIT_END; | |
908 | ||
909 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
910 | ASSERT_EQ(0, ictx2->operations->snap_create(cls::rbd::UserSnapshotNamespace(), | |
911 | "snap1")); | |
912 | ||
913 | bufferlist write_full_bl; | |
914 | write_full_bl.append(std::string(1 << ictx2->order, '2')); | |
915 | ASSERT_EQ((ssize_t)write_full_bl.length(), | |
916 | ictx2->io_work_queue->write(0, write_full_bl.length(), | |
917 | bufferlist{write_full_bl}, 0)); | |
918 | ||
919 | ASSERT_EQ(0, ictx2->operations->flatten(no_op)); | |
920 | ||
921 | bufferptr read_ptr(bl.length()); | |
922 | bufferlist read_bl; | |
923 | read_bl.push_back(read_ptr); | |
924 | ||
925 | librbd::io::ReadResult read_result{&read_bl}; | |
926 | ASSERT_EQ((ssize_t)read_bl.length(), | |
927 | ictx2->io_work_queue->read(0, read_bl.length(), | |
928 | librbd::io::ReadResult{read_result}, 0)); | |
929 | ASSERT_TRUE(write_full_bl.contents_equal(read_bl)); | |
930 | ||
931 | ASSERT_EQ(0, librbd::snap_set(ictx2, | |
932 | cls::rbd::UserSnapshotNamespace(), | |
933 | "snap1")); | |
934 | ASSERT_EQ((ssize_t)read_bl.length(), | |
935 | ictx2->io_work_queue->read(0, read_bl.length(), | |
936 | librbd::io::ReadResult{read_result}, 0)); | |
937 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
938 | } | |
939 | ||
940 | TEST_F(TestInternal, RemoveById) { | |
941 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
942 | ||
943 | librbd::ImageCtx *ictx; | |
944 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
945 | ||
946 | std::string image_id = ictx->id; | |
947 | close_image(ictx); | |
948 | ||
949 | librbd::NoOpProgressContext remove_no_op; | |
950 | ASSERT_EQ(0, librbd::remove(m_ioctx, "", image_id, remove_no_op)); | |
951 | } | |
952 | ||
953 | static int iterate_cb(uint64_t off, size_t len, int exists, void *arg) | |
954 | { | |
955 | interval_set<uint64_t> *diff = static_cast<interval_set<uint64_t> *>(arg); | |
956 | diff->insert(off, len); | |
957 | return 0; | |
958 | } | |
959 | ||
960 | TEST_F(TestInternal, DiffIterateCloneOverwrite) { | |
961 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
962 | ||
963 | librbd::RBD rbd; | |
964 | librbd::Image image; | |
965 | uint64_t size = 20 << 20; | |
966 | int order = 0; | |
967 | ||
968 | ASSERT_EQ(0, rbd.open(m_ioctx, image, m_image_name.c_str(), NULL)); | |
969 | ||
970 | bufferlist bl; | |
971 | bl.append(std::string(4096, '1')); | |
972 | ASSERT_EQ(4096, image.write(0, 4096, bl)); | |
973 | ||
974 | interval_set<uint64_t> one; | |
975 | ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, false, false, iterate_cb, | |
976 | (void *)&one)); | |
977 | ASSERT_EQ(0, image.snap_create("one")); | |
978 | ASSERT_EQ(0, image.snap_protect("one")); | |
979 | ||
980 | std::string clone_name = this->get_temp_image_name(); | |
981 | ASSERT_EQ(0, rbd.clone(m_ioctx, m_image_name.c_str(), "one", m_ioctx, | |
982 | clone_name.c_str(), RBD_FEATURE_LAYERING, &order)); | |
983 | ||
984 | librbd::ImageCtx *ictx; | |
985 | ASSERT_EQ(0, open_image(clone_name, &ictx)); | |
986 | ASSERT_EQ(0, snap_create(*ictx, "one")); | |
987 | ASSERT_EQ(0, | |
988 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
989 | "one")); | |
990 | ||
991 | // Simulate a client that doesn't support deep flatten (old librbd / krbd) | |
992 | // which will copy up the full object from the parent | |
993 | std::string oid = ictx->object_prefix + ".0000000000000000"; | |
994 | librados::IoCtx io_ctx; | |
995 | io_ctx.dup(m_ioctx); | |
996 | io_ctx.selfmanaged_snap_set_write_ctx(ictx->snapc.seq, ictx->snaps); | |
997 | ASSERT_EQ(0, io_ctx.write(oid, bl, 4096, 4096)); | |
998 | ||
999 | interval_set<uint64_t> diff; | |
1000 | ASSERT_EQ(0, librbd::snap_set(ictx, cls::rbd::UserSnapshotNamespace(), "one")); | |
1001 | ASSERT_EQ(0, librbd::api::DiffIterate<>::diff_iterate( | |
1002 | ictx, cls::rbd::UserSnapshotNamespace(), nullptr, 0, size, true, false, | |
1003 | iterate_cb, (void *)&diff)); | |
1004 | ASSERT_EQ(one, diff); | |
1005 | } | |
1006 | ||
1007 | TEST_F(TestInternal, TestCoR) | |
1008 | { | |
1009 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
1010 | ||
1011 | std::string config_value; | |
1012 | ASSERT_EQ(0, _rados.conf_get("rbd_clone_copy_on_read", config_value)); | |
1013 | if (config_value == "false") { | |
1014 | std::cout << "SKIPPING due to disabled rbd_copy_on_read" << std::endl; | |
1015 | return; | |
1016 | } | |
1017 | ||
1018 | m_image_name = get_temp_image_name(); | |
1019 | m_image_size = 4 << 20; | |
1020 | ||
1021 | int order = 12; // smallest object size is 4K | |
1022 | uint64_t features; | |
1023 | ASSERT_TRUE(get_features(&features)); | |
1024 | ||
1025 | ASSERT_EQ(0, create_image_full_pp(m_rbd, m_ioctx, m_image_name, m_image_size, | |
1026 | features, false, &order)); | |
1027 | ||
1028 | librbd::Image image; | |
1029 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), NULL)); | |
1030 | ||
1031 | librbd::image_info_t info; | |
1032 | ASSERT_EQ(0, image.stat(info, sizeof(info))); | |
1033 | ||
1034 | const int object_num = info.size / info.obj_size; | |
1035 | printf("made parent image \"%s\": %ldK (%d * %" PRIu64 "K)\n", m_image_name.c_str(), | |
1036 | (unsigned long)m_image_size, object_num, info.obj_size/1024); | |
1037 | ||
1038 | // write something into parent | |
1039 | char test_data[TEST_IO_SIZE + 1]; | |
1040 | for (int i = 0; i < TEST_IO_SIZE; ++i) { | |
1041 | test_data[i] = (char) (rand() % (126 - 33) + 33); | |
1042 | } | |
1043 | test_data[TEST_IO_SIZE] = '\0'; | |
1044 | ||
1045 | // generate a random map which covers every objects with random | |
1046 | // offset | |
1047 | map<uint64_t, uint64_t> write_tracker; | |
1048 | generate_random_iomap(image, object_num, info.obj_size, 100, write_tracker); | |
1049 | ||
1050 | printf("generated random write map:\n"); | |
1051 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1052 | itr != write_tracker.end(); ++itr) | |
1053 | printf("\t [%-8ld, %-8ld]\n", | |
1054 | (unsigned long)itr->first, (unsigned long)itr->second); | |
1055 | ||
1056 | bufferlist bl; | |
1057 | bl.append(test_data, TEST_IO_SIZE); | |
1058 | ||
1059 | printf("write data based on random map\n"); | |
1060 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1061 | itr != write_tracker.end(); ++itr) { | |
1062 | printf("\twrite object-%-4ld\t\n", (unsigned long)itr->first); | |
1063 | ASSERT_EQ(TEST_IO_SIZE, image.write(itr->second, TEST_IO_SIZE, bl)); | |
1064 | } | |
1065 | ||
1066 | bufferlist readbl; | |
1067 | printf("verify written data by reading\n"); | |
1068 | { | |
1069 | map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1070 | printf("\tread object-%-4ld\n", (unsigned long)itr->first); | |
1071 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1072 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1073 | } | |
1074 | ||
1075 | int64_t data_pool_id = image.get_data_pool_id(); | |
1076 | rados_ioctx_t d_ioctx; | |
1077 | rados_ioctx_create2(_cluster, data_pool_id, &d_ioctx); | |
1078 | ||
1079 | const char *entry; | |
1080 | rados_list_ctx_t list_ctx; | |
1081 | set<string> obj_checker; | |
1082 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1083 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1084 | if (strstr(entry, info.block_name_prefix)) { | |
1085 | const char *block_name_suffix = entry + strlen(info.block_name_prefix) + 1; | |
1086 | obj_checker.insert(block_name_suffix); | |
1087 | } | |
1088 | } | |
1089 | rados_nobjects_list_close(list_ctx); | |
1090 | ||
1091 | std::string snapname = "snap"; | |
1092 | std::string clonename = get_temp_image_name(); | |
1093 | ASSERT_EQ(0, image.snap_create(snapname.c_str())); | |
1094 | ASSERT_EQ(0, image.close()); | |
1095 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), snapname.c_str())); | |
1096 | ASSERT_EQ(0, image.snap_protect(snapname.c_str())); | |
1097 | printf("made snapshot \"%s@parent_snap\" and protect it\n", m_image_name.c_str()); | |
1098 | ||
1099 | ASSERT_EQ(0, clone_image_pp(m_rbd, image, m_ioctx, m_image_name.c_str(), snapname.c_str(), | |
1100 | m_ioctx, clonename.c_str(), features)); | |
1101 | ASSERT_EQ(0, image.close()); | |
1102 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, clonename.c_str(), NULL)); | |
1103 | printf("made and opened clone \"%s\"\n", clonename.c_str()); | |
1104 | ||
1105 | printf("read from \"child\"\n"); | |
1106 | { | |
1107 | map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1108 | printf("\tread object-%-4ld\n", (unsigned long)itr->first); | |
1109 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1110 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1111 | } | |
1112 | ||
1113 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1114 | itr != write_tracker.end(); ++itr) { | |
1115 | printf("\tread object-%-4ld\n", (unsigned long)itr->first); | |
1116 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1117 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1118 | } | |
1119 | ||
1120 | printf("read again reversely\n"); | |
1121 | for (map<uint64_t, uint64_t>::iterator itr = --write_tracker.end(); | |
1122 | itr != write_tracker.begin(); --itr) { | |
1123 | printf("\tread object-%-4ld\n", (unsigned long)itr->first); | |
1124 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1125 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1126 | } | |
1127 | ||
1128 | // close child to flush all copy-on-read | |
1129 | ASSERT_EQ(0, image.close()); | |
1130 | ||
1131 | printf("check whether child image has the same set of objects as parent\n"); | |
1132 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, clonename.c_str(), NULL)); | |
1133 | ASSERT_EQ(0, image.stat(info, sizeof(info))); | |
1134 | ||
1135 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1136 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1137 | if (strstr(entry, info.block_name_prefix)) { | |
1138 | const char *block_name_suffix = entry + strlen(info.block_name_prefix) + 1; | |
1139 | set<string>::iterator it = obj_checker.find(block_name_suffix); | |
1140 | ASSERT_TRUE(it != obj_checker.end()); | |
1141 | obj_checker.erase(it); | |
1142 | } | |
1143 | } | |
1144 | rados_nobjects_list_close(list_ctx); | |
1145 | ASSERT_TRUE(obj_checker.empty()); | |
1146 | ASSERT_EQ(0, image.close()); | |
1147 | ||
1148 | rados_ioctx_destroy(d_ioctx); | |
1149 | } | |
1150 | ||
1151 | TEST_F(TestInternal, FlattenNoEmptyObjects) | |
1152 | { | |
1153 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
1154 | ||
1155 | m_image_name = get_temp_image_name(); | |
1156 | m_image_size = 4 << 20; | |
1157 | ||
1158 | int order = 12; // smallest object size is 4K | |
1159 | uint64_t features; | |
1160 | ASSERT_TRUE(get_features(&features)); | |
1161 | ||
1162 | ASSERT_EQ(0, create_image_full_pp(m_rbd, m_ioctx, m_image_name, m_image_size, | |
1163 | features, false, &order)); | |
1164 | ||
1165 | librbd::Image image; | |
1166 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), NULL)); | |
1167 | ||
1168 | librbd::image_info_t info; | |
1169 | ASSERT_EQ(0, image.stat(info, sizeof(info))); | |
1170 | ||
1171 | const int object_num = info.size / info.obj_size; | |
1172 | printf("made parent image \"%s\": %" PRIu64 "K (%d * %" PRIu64 "K)\n", | |
1173 | m_image_name.c_str(), m_image_size, object_num, info.obj_size/1024); | |
1174 | ||
1175 | // write something into parent | |
1176 | char test_data[TEST_IO_SIZE + 1]; | |
1177 | for (int i = 0; i < TEST_IO_SIZE; ++i) { | |
1178 | test_data[i] = (char) (rand() % (126 - 33) + 33); | |
1179 | } | |
1180 | test_data[TEST_IO_SIZE] = '\0'; | |
1181 | ||
1182 | // generate a random map which covers every objects with random | |
1183 | // offset | |
1184 | map<uint64_t, uint64_t> write_tracker; | |
1185 | generate_random_iomap(image, object_num, info.obj_size, 100, write_tracker); | |
1186 | ||
1187 | printf("generated random write map:\n"); | |
1188 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1189 | itr != write_tracker.end(); ++itr) | |
1190 | printf("\t [%-8ld, %-8ld]\n", | |
1191 | (unsigned long)itr->first, (unsigned long)itr->second); | |
1192 | ||
1193 | bufferlist bl; | |
1194 | bl.append(test_data, TEST_IO_SIZE); | |
1195 | ||
1196 | printf("write data based on random map\n"); | |
1197 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1198 | itr != write_tracker.end(); ++itr) { | |
1199 | printf("\twrite object-%-4ld\t\n", (unsigned long)itr->first); | |
1200 | ASSERT_EQ(TEST_IO_SIZE, image.write(itr->second, TEST_IO_SIZE, bl)); | |
1201 | } | |
1202 | ||
1203 | bufferlist readbl; | |
1204 | printf("verify written data by reading\n"); | |
1205 | { | |
1206 | map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1207 | printf("\tread object-%-4ld\n", (unsigned long)itr->first); | |
1208 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1209 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1210 | } | |
1211 | ||
1212 | int64_t data_pool_id = image.get_data_pool_id(); | |
1213 | rados_ioctx_t d_ioctx; | |
1214 | rados_ioctx_create2(_cluster, data_pool_id, &d_ioctx); | |
1215 | ||
1216 | const char *entry; | |
1217 | rados_list_ctx_t list_ctx; | |
1218 | set<string> obj_checker; | |
1219 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1220 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1221 | if (strstr(entry, info.block_name_prefix)) { | |
1222 | const char *block_name_suffix = entry + strlen(info.block_name_prefix) + 1; | |
1223 | obj_checker.insert(block_name_suffix); | |
1224 | } | |
1225 | } | |
1226 | rados_nobjects_list_close(list_ctx); | |
1227 | ||
1228 | std::string snapname = "snap"; | |
1229 | std::string clonename = get_temp_image_name(); | |
1230 | ASSERT_EQ(0, image.snap_create(snapname.c_str())); | |
1231 | ASSERT_EQ(0, image.close()); | |
1232 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), snapname.c_str())); | |
1233 | ASSERT_EQ(0, image.snap_protect(snapname.c_str())); | |
1234 | printf("made snapshot \"%s@parent_snap\" and protect it\n", m_image_name.c_str()); | |
1235 | ||
1236 | ASSERT_EQ(0, clone_image_pp(m_rbd, image, m_ioctx, m_image_name.c_str(), snapname.c_str(), | |
1237 | m_ioctx, clonename.c_str(), features)); | |
1238 | ASSERT_EQ(0, image.close()); | |
1239 | ||
1240 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, clonename.c_str(), NULL)); | |
1241 | printf("made and opened clone \"%s\"\n", clonename.c_str()); | |
1242 | ||
1243 | printf("flattening clone: \"%s\"\n", clonename.c_str()); | |
1244 | ASSERT_EQ(0, image.flatten()); | |
1245 | ||
1246 | printf("check whether child image has the same set of objects as parent\n"); | |
1247 | ASSERT_EQ(0, image.stat(info, sizeof(info))); | |
1248 | ||
1249 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1250 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1251 | if (strstr(entry, info.block_name_prefix)) { | |
1252 | const char *block_name_suffix = entry + strlen(info.block_name_prefix) + 1; | |
1253 | set<string>::iterator it = obj_checker.find(block_name_suffix); | |
1254 | ASSERT_TRUE(it != obj_checker.end()); | |
1255 | obj_checker.erase(it); | |
1256 | } | |
1257 | } | |
1258 | rados_nobjects_list_close(list_ctx); | |
1259 | ASSERT_TRUE(obj_checker.empty()); | |
1260 | ASSERT_EQ(0, image.close()); | |
1261 | ||
1262 | rados_ioctx_destroy(d_ioctx); | |
1263 | } |