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4720cbee KW |
1 | /* |
2 | * Block tests for iothreads | |
3 | * | |
4 | * Copyright (c) 2018 Kevin Wolf <kwolf@redhat.com> | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "qemu/osdep.h" | |
26 | #include "block/block.h" | |
27 | #include "block/blockjob_int.h" | |
28 | #include "sysemu/block-backend.h" | |
29 | #include "qapi/error.h" | |
7e2f096a | 30 | #include "qapi/qmp/qdict.h" |
db725815 | 31 | #include "qemu/main-loop.h" |
4720cbee KW |
32 | #include "iothread.h" |
33 | ||
34 | static int coroutine_fn bdrv_test_co_prwv(BlockDriverState *bs, | |
35 | uint64_t offset, uint64_t bytes, | |
36 | QEMUIOVector *qiov, int flags) | |
37 | { | |
38 | return 0; | |
39 | } | |
40 | ||
41 | static int coroutine_fn bdrv_test_co_pdiscard(BlockDriverState *bs, | |
42 | int64_t offset, int bytes) | |
43 | { | |
44 | return 0; | |
45 | } | |
46 | ||
47 | static int coroutine_fn | |
c80d8b06 | 48 | bdrv_test_co_truncate(BlockDriverState *bs, int64_t offset, bool exact, |
92b92799 KW |
49 | PreallocMode prealloc, BdrvRequestFlags flags, |
50 | Error **errp) | |
4720cbee KW |
51 | { |
52 | return 0; | |
53 | } | |
54 | ||
55 | static int coroutine_fn bdrv_test_co_block_status(BlockDriverState *bs, | |
56 | bool want_zero, | |
57 | int64_t offset, int64_t count, | |
58 | int64_t *pnum, int64_t *map, | |
59 | BlockDriverState **file) | |
60 | { | |
61 | *pnum = count; | |
62 | return 0; | |
63 | } | |
64 | ||
65 | static BlockDriver bdrv_test = { | |
66 | .format_name = "test", | |
67 | .instance_size = 1, | |
68 | ||
69 | .bdrv_co_preadv = bdrv_test_co_prwv, | |
70 | .bdrv_co_pwritev = bdrv_test_co_prwv, | |
71 | .bdrv_co_pdiscard = bdrv_test_co_pdiscard, | |
72 | .bdrv_co_truncate = bdrv_test_co_truncate, | |
73 | .bdrv_co_block_status = bdrv_test_co_block_status, | |
74 | }; | |
75 | ||
76 | static void test_sync_op_pread(BdrvChild *c) | |
77 | { | |
78 | uint8_t buf[512]; | |
79 | int ret; | |
80 | ||
81 | /* Success */ | |
82 | ret = bdrv_pread(c, 0, buf, sizeof(buf)); | |
83 | g_assert_cmpint(ret, ==, 512); | |
84 | ||
85 | /* Early error: Negative offset */ | |
86 | ret = bdrv_pread(c, -2, buf, sizeof(buf)); | |
87 | g_assert_cmpint(ret, ==, -EIO); | |
88 | } | |
89 | ||
90 | static void test_sync_op_pwrite(BdrvChild *c) | |
91 | { | |
92 | uint8_t buf[512]; | |
93 | int ret; | |
94 | ||
95 | /* Success */ | |
96 | ret = bdrv_pwrite(c, 0, buf, sizeof(buf)); | |
97 | g_assert_cmpint(ret, ==, 512); | |
98 | ||
99 | /* Early error: Negative offset */ | |
100 | ret = bdrv_pwrite(c, -2, buf, sizeof(buf)); | |
101 | g_assert_cmpint(ret, ==, -EIO); | |
102 | } | |
103 | ||
104 | static void test_sync_op_blk_pread(BlockBackend *blk) | |
105 | { | |
106 | uint8_t buf[512]; | |
107 | int ret; | |
108 | ||
109 | /* Success */ | |
110 | ret = blk_pread(blk, 0, buf, sizeof(buf)); | |
111 | g_assert_cmpint(ret, ==, 512); | |
112 | ||
113 | /* Early error: Negative offset */ | |
114 | ret = blk_pread(blk, -2, buf, sizeof(buf)); | |
115 | g_assert_cmpint(ret, ==, -EIO); | |
116 | } | |
117 | ||
118 | static void test_sync_op_blk_pwrite(BlockBackend *blk) | |
119 | { | |
120 | uint8_t buf[512]; | |
121 | int ret; | |
122 | ||
123 | /* Success */ | |
124 | ret = blk_pwrite(blk, 0, buf, sizeof(buf), 0); | |
125 | g_assert_cmpint(ret, ==, 512); | |
126 | ||
127 | /* Early error: Negative offset */ | |
128 | ret = blk_pwrite(blk, -2, buf, sizeof(buf), 0); | |
129 | g_assert_cmpint(ret, ==, -EIO); | |
130 | } | |
131 | ||
132 | static void test_sync_op_load_vmstate(BdrvChild *c) | |
133 | { | |
134 | uint8_t buf[512]; | |
135 | int ret; | |
136 | ||
137 | /* Error: Driver does not support snapshots */ | |
138 | ret = bdrv_load_vmstate(c->bs, buf, 0, sizeof(buf)); | |
139 | g_assert_cmpint(ret, ==, -ENOTSUP); | |
140 | } | |
141 | ||
142 | static void test_sync_op_save_vmstate(BdrvChild *c) | |
143 | { | |
144 | uint8_t buf[512]; | |
145 | int ret; | |
146 | ||
147 | /* Error: Driver does not support snapshots */ | |
148 | ret = bdrv_save_vmstate(c->bs, buf, 0, sizeof(buf)); | |
149 | g_assert_cmpint(ret, ==, -ENOTSUP); | |
150 | } | |
151 | ||
152 | static void test_sync_op_pdiscard(BdrvChild *c) | |
153 | { | |
154 | int ret; | |
155 | ||
156 | /* Normal success path */ | |
157 | c->bs->open_flags |= BDRV_O_UNMAP; | |
158 | ret = bdrv_pdiscard(c, 0, 512); | |
159 | g_assert_cmpint(ret, ==, 0); | |
160 | ||
161 | /* Early success: UNMAP not supported */ | |
162 | c->bs->open_flags &= ~BDRV_O_UNMAP; | |
163 | ret = bdrv_pdiscard(c, 0, 512); | |
164 | g_assert_cmpint(ret, ==, 0); | |
165 | ||
166 | /* Early error: Negative offset */ | |
167 | ret = bdrv_pdiscard(c, -2, 512); | |
168 | g_assert_cmpint(ret, ==, -EIO); | |
169 | } | |
170 | ||
171 | static void test_sync_op_blk_pdiscard(BlockBackend *blk) | |
172 | { | |
173 | int ret; | |
174 | ||
175 | /* Early success: UNMAP not supported */ | |
176 | ret = blk_pdiscard(blk, 0, 512); | |
177 | g_assert_cmpint(ret, ==, 0); | |
178 | ||
179 | /* Early error: Negative offset */ | |
180 | ret = blk_pdiscard(blk, -2, 512); | |
181 | g_assert_cmpint(ret, ==, -EIO); | |
182 | } | |
183 | ||
184 | static void test_sync_op_truncate(BdrvChild *c) | |
185 | { | |
186 | int ret; | |
187 | ||
188 | /* Normal success path */ | |
7b8e4857 | 189 | ret = bdrv_truncate(c, 65536, false, PREALLOC_MODE_OFF, 0, NULL); |
4720cbee KW |
190 | g_assert_cmpint(ret, ==, 0); |
191 | ||
192 | /* Early error: Negative offset */ | |
7b8e4857 | 193 | ret = bdrv_truncate(c, -2, false, PREALLOC_MODE_OFF, 0, NULL); |
4720cbee KW |
194 | g_assert_cmpint(ret, ==, -EINVAL); |
195 | ||
196 | /* Error: Read-only image */ | |
197 | c->bs->read_only = true; | |
198 | c->bs->open_flags &= ~BDRV_O_RDWR; | |
199 | ||
7b8e4857 | 200 | ret = bdrv_truncate(c, 65536, false, PREALLOC_MODE_OFF, 0, NULL); |
4720cbee KW |
201 | g_assert_cmpint(ret, ==, -EACCES); |
202 | ||
203 | c->bs->read_only = false; | |
204 | c->bs->open_flags |= BDRV_O_RDWR; | |
205 | } | |
206 | ||
207 | static void test_sync_op_block_status(BdrvChild *c) | |
208 | { | |
209 | int ret; | |
210 | int64_t n; | |
211 | ||
212 | /* Normal success path */ | |
213 | ret = bdrv_is_allocated(c->bs, 0, 65536, &n); | |
214 | g_assert_cmpint(ret, ==, 0); | |
215 | ||
216 | /* Early success: No driver support */ | |
217 | bdrv_test.bdrv_co_block_status = NULL; | |
218 | ret = bdrv_is_allocated(c->bs, 0, 65536, &n); | |
219 | g_assert_cmpint(ret, ==, 1); | |
220 | ||
221 | /* Early success: bytes = 0 */ | |
222 | ret = bdrv_is_allocated(c->bs, 0, 0, &n); | |
223 | g_assert_cmpint(ret, ==, 0); | |
224 | ||
225 | /* Early success: Offset > image size*/ | |
226 | ret = bdrv_is_allocated(c->bs, 0x1000000, 0x1000000, &n); | |
227 | g_assert_cmpint(ret, ==, 0); | |
228 | } | |
229 | ||
230 | static void test_sync_op_flush(BdrvChild *c) | |
231 | { | |
232 | int ret; | |
233 | ||
234 | /* Normal success path */ | |
235 | ret = bdrv_flush(c->bs); | |
236 | g_assert_cmpint(ret, ==, 0); | |
237 | ||
238 | /* Early success: Read-only image */ | |
239 | c->bs->read_only = true; | |
240 | c->bs->open_flags &= ~BDRV_O_RDWR; | |
241 | ||
242 | ret = bdrv_flush(c->bs); | |
243 | g_assert_cmpint(ret, ==, 0); | |
244 | ||
245 | c->bs->read_only = false; | |
246 | c->bs->open_flags |= BDRV_O_RDWR; | |
247 | } | |
248 | ||
249 | static void test_sync_op_blk_flush(BlockBackend *blk) | |
250 | { | |
251 | BlockDriverState *bs = blk_bs(blk); | |
252 | int ret; | |
253 | ||
254 | /* Normal success path */ | |
255 | ret = blk_flush(blk); | |
256 | g_assert_cmpint(ret, ==, 0); | |
257 | ||
258 | /* Early success: Read-only image */ | |
259 | bs->read_only = true; | |
260 | bs->open_flags &= ~BDRV_O_RDWR; | |
261 | ||
262 | ret = blk_flush(blk); | |
263 | g_assert_cmpint(ret, ==, 0); | |
264 | ||
265 | bs->read_only = false; | |
266 | bs->open_flags |= BDRV_O_RDWR; | |
267 | } | |
268 | ||
269 | static void test_sync_op_check(BdrvChild *c) | |
270 | { | |
271 | BdrvCheckResult result; | |
272 | int ret; | |
273 | ||
274 | /* Error: Driver does not implement check */ | |
275 | ret = bdrv_check(c->bs, &result, 0); | |
276 | g_assert_cmpint(ret, ==, -ENOTSUP); | |
277 | } | |
278 | ||
279 | static void test_sync_op_invalidate_cache(BdrvChild *c) | |
280 | { | |
281 | /* Early success: Image is not inactive */ | |
282 | bdrv_invalidate_cache(c->bs, NULL); | |
283 | } | |
284 | ||
285 | ||
286 | typedef struct SyncOpTest { | |
287 | const char *name; | |
288 | void (*fn)(BdrvChild *c); | |
289 | void (*blkfn)(BlockBackend *blk); | |
290 | } SyncOpTest; | |
291 | ||
292 | const SyncOpTest sync_op_tests[] = { | |
293 | { | |
294 | .name = "/sync-op/pread", | |
295 | .fn = test_sync_op_pread, | |
296 | .blkfn = test_sync_op_blk_pread, | |
297 | }, { | |
298 | .name = "/sync-op/pwrite", | |
299 | .fn = test_sync_op_pwrite, | |
300 | .blkfn = test_sync_op_blk_pwrite, | |
301 | }, { | |
302 | .name = "/sync-op/load_vmstate", | |
303 | .fn = test_sync_op_load_vmstate, | |
304 | }, { | |
305 | .name = "/sync-op/save_vmstate", | |
306 | .fn = test_sync_op_save_vmstate, | |
307 | }, { | |
308 | .name = "/sync-op/pdiscard", | |
309 | .fn = test_sync_op_pdiscard, | |
310 | .blkfn = test_sync_op_blk_pdiscard, | |
311 | }, { | |
312 | .name = "/sync-op/truncate", | |
313 | .fn = test_sync_op_truncate, | |
314 | }, { | |
315 | .name = "/sync-op/block_status", | |
316 | .fn = test_sync_op_block_status, | |
317 | }, { | |
318 | .name = "/sync-op/flush", | |
319 | .fn = test_sync_op_flush, | |
320 | .blkfn = test_sync_op_blk_flush, | |
321 | }, { | |
322 | .name = "/sync-op/check", | |
323 | .fn = test_sync_op_check, | |
324 | }, { | |
325 | .name = "/sync-op/invalidate_cache", | |
326 | .fn = test_sync_op_invalidate_cache, | |
327 | }, | |
328 | }; | |
329 | ||
330 | /* Test synchronous operations that run in a different iothread, so we have to | |
331 | * poll for the coroutine there to return. */ | |
332 | static void test_sync_op(const void *opaque) | |
333 | { | |
334 | const SyncOpTest *t = opaque; | |
335 | IOThread *iothread = iothread_new(); | |
336 | AioContext *ctx = iothread_get_aio_context(iothread); | |
337 | BlockBackend *blk; | |
338 | BlockDriverState *bs; | |
339 | BdrvChild *c; | |
340 | ||
d861ab3a | 341 | blk = blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_ALL); |
4720cbee KW |
342 | bs = bdrv_new_open_driver(&bdrv_test, "base", BDRV_O_RDWR, &error_abort); |
343 | bs->total_sectors = 65536 / BDRV_SECTOR_SIZE; | |
344 | blk_insert_bs(blk, bs, &error_abort); | |
345 | c = QLIST_FIRST(&bs->parents); | |
346 | ||
97896a48 | 347 | blk_set_aio_context(blk, ctx, &error_abort); |
4720cbee KW |
348 | aio_context_acquire(ctx); |
349 | t->fn(c); | |
350 | if (t->blkfn) { | |
351 | t->blkfn(blk); | |
352 | } | |
97896a48 | 353 | blk_set_aio_context(blk, qemu_get_aio_context(), &error_abort); |
1b285657 | 354 | aio_context_release(ctx); |
4720cbee KW |
355 | |
356 | bdrv_unref(bs); | |
357 | blk_unref(blk); | |
358 | } | |
359 | ||
93c60f38 KW |
360 | typedef struct TestBlockJob { |
361 | BlockJob common; | |
362 | bool should_complete; | |
363 | int n; | |
364 | } TestBlockJob; | |
365 | ||
366 | static int test_job_prepare(Job *job) | |
367 | { | |
368 | g_assert(qemu_get_current_aio_context() == qemu_get_aio_context()); | |
369 | return 0; | |
370 | } | |
371 | ||
372 | static int coroutine_fn test_job_run(Job *job, Error **errp) | |
373 | { | |
374 | TestBlockJob *s = container_of(job, TestBlockJob, common.job); | |
375 | ||
376 | job_transition_to_ready(&s->common.job); | |
377 | while (!s->should_complete) { | |
378 | s->n++; | |
379 | g_assert(qemu_get_current_aio_context() == job->aio_context); | |
380 | ||
381 | /* Avoid job_sleep_ns() because it marks the job as !busy. We want to | |
382 | * emulate some actual activity (probably some I/O) here so that the | |
383 | * drain involved in AioContext switches has to wait for this activity | |
384 | * to stop. */ | |
385 | qemu_co_sleep_ns(QEMU_CLOCK_REALTIME, 1000000); | |
386 | ||
387 | job_pause_point(&s->common.job); | |
388 | } | |
389 | ||
390 | g_assert(qemu_get_current_aio_context() == job->aio_context); | |
391 | return 0; | |
392 | } | |
393 | ||
394 | static void test_job_complete(Job *job, Error **errp) | |
395 | { | |
396 | TestBlockJob *s = container_of(job, TestBlockJob, common.job); | |
397 | s->should_complete = true; | |
398 | } | |
399 | ||
400 | BlockJobDriver test_job_driver = { | |
401 | .job_driver = { | |
402 | .instance_size = sizeof(TestBlockJob), | |
403 | .free = block_job_free, | |
404 | .user_resume = block_job_user_resume, | |
93c60f38 KW |
405 | .run = test_job_run, |
406 | .complete = test_job_complete, | |
407 | .prepare = test_job_prepare, | |
408 | }, | |
409 | }; | |
410 | ||
411 | static void test_attach_blockjob(void) | |
412 | { | |
413 | IOThread *iothread = iothread_new(); | |
414 | AioContext *ctx = iothread_get_aio_context(iothread); | |
415 | BlockBackend *blk; | |
416 | BlockDriverState *bs; | |
417 | TestBlockJob *tjob; | |
418 | ||
d861ab3a | 419 | blk = blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_ALL); |
93c60f38 KW |
420 | bs = bdrv_new_open_driver(&bdrv_test, "base", BDRV_O_RDWR, &error_abort); |
421 | blk_insert_bs(blk, bs, &error_abort); | |
422 | ||
423 | tjob = block_job_create("job0", &test_job_driver, NULL, bs, | |
424 | 0, BLK_PERM_ALL, | |
425 | 0, 0, NULL, NULL, &error_abort); | |
426 | job_start(&tjob->common.job); | |
427 | ||
428 | while (tjob->n == 0) { | |
429 | aio_poll(qemu_get_aio_context(), false); | |
430 | } | |
431 | ||
97896a48 | 432 | blk_set_aio_context(blk, ctx, &error_abort); |
93c60f38 KW |
433 | |
434 | tjob->n = 0; | |
435 | while (tjob->n == 0) { | |
436 | aio_poll(qemu_get_aio_context(), false); | |
437 | } | |
438 | ||
439 | aio_context_acquire(ctx); | |
97896a48 | 440 | blk_set_aio_context(blk, qemu_get_aio_context(), &error_abort); |
93c60f38 KW |
441 | aio_context_release(ctx); |
442 | ||
443 | tjob->n = 0; | |
444 | while (tjob->n == 0) { | |
445 | aio_poll(qemu_get_aio_context(), false); | |
446 | } | |
447 | ||
97896a48 | 448 | blk_set_aio_context(blk, ctx, &error_abort); |
93c60f38 KW |
449 | |
450 | tjob->n = 0; | |
451 | while (tjob->n == 0) { | |
452 | aio_poll(qemu_get_aio_context(), false); | |
453 | } | |
454 | ||
455 | aio_context_acquire(ctx); | |
456 | job_complete_sync(&tjob->common.job, &error_abort); | |
97896a48 | 457 | blk_set_aio_context(blk, qemu_get_aio_context(), &error_abort); |
93c60f38 KW |
458 | aio_context_release(ctx); |
459 | ||
460 | bdrv_unref(bs); | |
461 | blk_unref(blk); | |
462 | } | |
463 | ||
7e2f096a KW |
464 | /* |
465 | * Test that changing the AioContext for one node in a tree (here through blk) | |
466 | * changes all other nodes as well: | |
467 | * | |
468 | * blk | |
469 | * | | |
470 | * | bs_verify [blkverify] | |
471 | * | / \ | |
472 | * | / \ | |
473 | * bs_a [bdrv_test] bs_b [bdrv_test] | |
474 | * | |
475 | */ | |
476 | static void test_propagate_basic(void) | |
477 | { | |
478 | IOThread *iothread = iothread_new(); | |
479 | AioContext *ctx = iothread_get_aio_context(iothread); | |
1b285657 | 480 | AioContext *main_ctx; |
7e2f096a KW |
481 | BlockBackend *blk; |
482 | BlockDriverState *bs_a, *bs_b, *bs_verify; | |
483 | QDict *options; | |
484 | ||
69dca43d HR |
485 | /* |
486 | * Create bs_a and its BlockBackend. We cannot take the RESIZE | |
487 | * permission because blkverify will not share it on the test | |
488 | * image. | |
489 | */ | |
490 | blk = blk_new(qemu_get_aio_context(), BLK_PERM_ALL & ~BLK_PERM_RESIZE, | |
491 | BLK_PERM_ALL); | |
7e2f096a KW |
492 | bs_a = bdrv_new_open_driver(&bdrv_test, "bs_a", BDRV_O_RDWR, &error_abort); |
493 | blk_insert_bs(blk, bs_a, &error_abort); | |
494 | ||
495 | /* Create bs_b */ | |
496 | bs_b = bdrv_new_open_driver(&bdrv_test, "bs_b", BDRV_O_RDWR, &error_abort); | |
497 | ||
498 | /* Create blkverify filter that references both bs_a and bs_b */ | |
499 | options = qdict_new(); | |
500 | qdict_put_str(options, "driver", "blkverify"); | |
501 | qdict_put_str(options, "test", "bs_a"); | |
502 | qdict_put_str(options, "raw", "bs_b"); | |
503 | ||
504 | bs_verify = bdrv_open(NULL, NULL, options, BDRV_O_RDWR, &error_abort); | |
505 | ||
506 | /* Switch the AioContext */ | |
97896a48 | 507 | blk_set_aio_context(blk, ctx, &error_abort); |
7e2f096a KW |
508 | g_assert(blk_get_aio_context(blk) == ctx); |
509 | g_assert(bdrv_get_aio_context(bs_a) == ctx); | |
510 | g_assert(bdrv_get_aio_context(bs_verify) == ctx); | |
511 | g_assert(bdrv_get_aio_context(bs_b) == ctx); | |
512 | ||
513 | /* Switch the AioContext back */ | |
1b285657 HR |
514 | main_ctx = qemu_get_aio_context(); |
515 | aio_context_acquire(ctx); | |
516 | blk_set_aio_context(blk, main_ctx, &error_abort); | |
517 | aio_context_release(ctx); | |
518 | g_assert(blk_get_aio_context(blk) == main_ctx); | |
519 | g_assert(bdrv_get_aio_context(bs_a) == main_ctx); | |
520 | g_assert(bdrv_get_aio_context(bs_verify) == main_ctx); | |
521 | g_assert(bdrv_get_aio_context(bs_b) == main_ctx); | |
7e2f096a KW |
522 | |
523 | bdrv_unref(bs_verify); | |
524 | bdrv_unref(bs_b); | |
525 | bdrv_unref(bs_a); | |
526 | blk_unref(blk); | |
527 | } | |
528 | ||
529 | /* | |
530 | * Test that diamonds in the graph don't lead to endless recursion: | |
531 | * | |
532 | * blk | |
533 | * | | |
534 | * bs_verify [blkverify] | |
535 | * / \ | |
536 | * / \ | |
537 | * bs_b [raw] bs_c[raw] | |
538 | * \ / | |
539 | * \ / | |
540 | * bs_a [bdrv_test] | |
541 | */ | |
542 | static void test_propagate_diamond(void) | |
543 | { | |
544 | IOThread *iothread = iothread_new(); | |
545 | AioContext *ctx = iothread_get_aio_context(iothread); | |
1b285657 | 546 | AioContext *main_ctx; |
7e2f096a KW |
547 | BlockBackend *blk; |
548 | BlockDriverState *bs_a, *bs_b, *bs_c, *bs_verify; | |
549 | QDict *options; | |
550 | ||
551 | /* Create bs_a */ | |
552 | bs_a = bdrv_new_open_driver(&bdrv_test, "bs_a", BDRV_O_RDWR, &error_abort); | |
553 | ||
554 | /* Create bs_b and bc_c */ | |
555 | options = qdict_new(); | |
556 | qdict_put_str(options, "driver", "raw"); | |
557 | qdict_put_str(options, "file", "bs_a"); | |
558 | qdict_put_str(options, "node-name", "bs_b"); | |
559 | bs_b = bdrv_open(NULL, NULL, options, BDRV_O_RDWR, &error_abort); | |
560 | ||
561 | options = qdict_new(); | |
562 | qdict_put_str(options, "driver", "raw"); | |
563 | qdict_put_str(options, "file", "bs_a"); | |
564 | qdict_put_str(options, "node-name", "bs_c"); | |
565 | bs_c = bdrv_open(NULL, NULL, options, BDRV_O_RDWR, &error_abort); | |
566 | ||
567 | /* Create blkverify filter that references both bs_b and bs_c */ | |
568 | options = qdict_new(); | |
569 | qdict_put_str(options, "driver", "blkverify"); | |
570 | qdict_put_str(options, "test", "bs_b"); | |
571 | qdict_put_str(options, "raw", "bs_c"); | |
572 | ||
573 | bs_verify = bdrv_open(NULL, NULL, options, BDRV_O_RDWR, &error_abort); | |
69dca43d HR |
574 | /* |
575 | * Do not take the RESIZE permission: This would require the same | |
576 | * from bs_c and thus from bs_a; however, blkverify will not share | |
577 | * it on bs_b, and thus it will not be available for bs_a. | |
578 | */ | |
579 | blk = blk_new(qemu_get_aio_context(), BLK_PERM_ALL & ~BLK_PERM_RESIZE, | |
580 | BLK_PERM_ALL); | |
7e2f096a KW |
581 | blk_insert_bs(blk, bs_verify, &error_abort); |
582 | ||
583 | /* Switch the AioContext */ | |
97896a48 | 584 | blk_set_aio_context(blk, ctx, &error_abort); |
7e2f096a KW |
585 | g_assert(blk_get_aio_context(blk) == ctx); |
586 | g_assert(bdrv_get_aio_context(bs_verify) == ctx); | |
587 | g_assert(bdrv_get_aio_context(bs_a) == ctx); | |
588 | g_assert(bdrv_get_aio_context(bs_b) == ctx); | |
589 | g_assert(bdrv_get_aio_context(bs_c) == ctx); | |
590 | ||
591 | /* Switch the AioContext back */ | |
1b285657 HR |
592 | main_ctx = qemu_get_aio_context(); |
593 | aio_context_acquire(ctx); | |
594 | blk_set_aio_context(blk, main_ctx, &error_abort); | |
595 | aio_context_release(ctx); | |
596 | g_assert(blk_get_aio_context(blk) == main_ctx); | |
597 | g_assert(bdrv_get_aio_context(bs_verify) == main_ctx); | |
598 | g_assert(bdrv_get_aio_context(bs_a) == main_ctx); | |
599 | g_assert(bdrv_get_aio_context(bs_b) == main_ctx); | |
600 | g_assert(bdrv_get_aio_context(bs_c) == main_ctx); | |
7e2f096a KW |
601 | |
602 | blk_unref(blk); | |
603 | bdrv_unref(bs_verify); | |
604 | bdrv_unref(bs_c); | |
605 | bdrv_unref(bs_b); | |
606 | bdrv_unref(bs_a); | |
607 | } | |
608 | ||
012056f4 KW |
609 | static void test_propagate_mirror(void) |
610 | { | |
611 | IOThread *iothread = iothread_new(); | |
612 | AioContext *ctx = iothread_get_aio_context(iothread); | |
613 | AioContext *main_ctx = qemu_get_aio_context(); | |
087ba459 | 614 | BlockDriverState *src, *target, *filter; |
012056f4 KW |
615 | BlockBackend *blk; |
616 | Job *job; | |
617 | Error *local_err = NULL; | |
618 | ||
619 | /* Create src and target*/ | |
620 | src = bdrv_new_open_driver(&bdrv_test, "src", BDRV_O_RDWR, &error_abort); | |
621 | target = bdrv_new_open_driver(&bdrv_test, "target", BDRV_O_RDWR, | |
622 | &error_abort); | |
623 | ||
624 | /* Start a mirror job */ | |
625 | mirror_start("job0", src, target, NULL, JOB_DEFAULT, 0, 0, 0, | |
cdf3bc93 | 626 | MIRROR_SYNC_MODE_NONE, MIRROR_OPEN_BACKING_CHAIN, false, |
012056f4 KW |
627 | BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT, |
628 | false, "filter_node", MIRROR_COPY_MODE_BACKGROUND, | |
629 | &error_abort); | |
630 | job = job_get("job0"); | |
087ba459 | 631 | filter = bdrv_find_node("filter_node"); |
012056f4 KW |
632 | |
633 | /* Change the AioContext of src */ | |
634 | bdrv_try_set_aio_context(src, ctx, &error_abort); | |
635 | g_assert(bdrv_get_aio_context(src) == ctx); | |
636 | g_assert(bdrv_get_aio_context(target) == ctx); | |
087ba459 | 637 | g_assert(bdrv_get_aio_context(filter) == ctx); |
012056f4 KW |
638 | g_assert(job->aio_context == ctx); |
639 | ||
640 | /* Change the AioContext of target */ | |
641 | aio_context_acquire(ctx); | |
642 | bdrv_try_set_aio_context(target, main_ctx, &error_abort); | |
643 | aio_context_release(ctx); | |
644 | g_assert(bdrv_get_aio_context(src) == main_ctx); | |
645 | g_assert(bdrv_get_aio_context(target) == main_ctx); | |
087ba459 | 646 | g_assert(bdrv_get_aio_context(filter) == main_ctx); |
012056f4 KW |
647 | |
648 | /* With a BlockBackend on src, changing target must fail */ | |
d861ab3a | 649 | blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL); |
012056f4 KW |
650 | blk_insert_bs(blk, src, &error_abort); |
651 | ||
652 | bdrv_try_set_aio_context(target, ctx, &local_err); | |
7b8eb7f8 | 653 | error_free_or_abort(&local_err); |
012056f4 KW |
654 | |
655 | g_assert(blk_get_aio_context(blk) == main_ctx); | |
656 | g_assert(bdrv_get_aio_context(src) == main_ctx); | |
657 | g_assert(bdrv_get_aio_context(target) == main_ctx); | |
087ba459 | 658 | g_assert(bdrv_get_aio_context(filter) == main_ctx); |
012056f4 KW |
659 | |
660 | /* ...unless we explicitly allow it */ | |
661 | aio_context_acquire(ctx); | |
662 | blk_set_allow_aio_context_change(blk, true); | |
663 | bdrv_try_set_aio_context(target, ctx, &error_abort); | |
664 | aio_context_release(ctx); | |
665 | ||
666 | g_assert(blk_get_aio_context(blk) == ctx); | |
667 | g_assert(bdrv_get_aio_context(src) == ctx); | |
668 | g_assert(bdrv_get_aio_context(target) == ctx); | |
087ba459 | 669 | g_assert(bdrv_get_aio_context(filter) == ctx); |
012056f4 KW |
670 | |
671 | job_cancel_sync_all(); | |
672 | ||
673 | aio_context_acquire(ctx); | |
97896a48 | 674 | blk_set_aio_context(blk, main_ctx, &error_abort); |
012056f4 KW |
675 | bdrv_try_set_aio_context(target, main_ctx, &error_abort); |
676 | aio_context_release(ctx); | |
677 | ||
678 | blk_unref(blk); | |
679 | bdrv_unref(src); | |
680 | bdrv_unref(target); | |
681 | } | |
682 | ||
48946d7d KW |
683 | static void test_attach_second_node(void) |
684 | { | |
685 | IOThread *iothread = iothread_new(); | |
686 | AioContext *ctx = iothread_get_aio_context(iothread); | |
687 | AioContext *main_ctx = qemu_get_aio_context(); | |
688 | BlockBackend *blk; | |
689 | BlockDriverState *bs, *filter; | |
690 | QDict *options; | |
691 | ||
692 | blk = blk_new(ctx, BLK_PERM_ALL, BLK_PERM_ALL); | |
693 | bs = bdrv_new_open_driver(&bdrv_test, "base", BDRV_O_RDWR, &error_abort); | |
694 | blk_insert_bs(blk, bs, &error_abort); | |
695 | ||
696 | options = qdict_new(); | |
697 | qdict_put_str(options, "driver", "raw"); | |
698 | qdict_put_str(options, "file", "base"); | |
699 | ||
700 | filter = bdrv_open(NULL, NULL, options, BDRV_O_RDWR, &error_abort); | |
701 | g_assert(blk_get_aio_context(blk) == ctx); | |
702 | g_assert(bdrv_get_aio_context(bs) == ctx); | |
703 | g_assert(bdrv_get_aio_context(filter) == ctx); | |
704 | ||
1b285657 | 705 | aio_context_acquire(ctx); |
48946d7d | 706 | blk_set_aio_context(blk, main_ctx, &error_abort); |
1b285657 | 707 | aio_context_release(ctx); |
48946d7d KW |
708 | g_assert(blk_get_aio_context(blk) == main_ctx); |
709 | g_assert(bdrv_get_aio_context(bs) == main_ctx); | |
710 | g_assert(bdrv_get_aio_context(filter) == main_ctx); | |
711 | ||
712 | bdrv_unref(filter); | |
713 | bdrv_unref(bs); | |
714 | blk_unref(blk); | |
715 | } | |
716 | ||
2e9cdab3 KW |
717 | static void test_attach_preserve_blk_ctx(void) |
718 | { | |
719 | IOThread *iothread = iothread_new(); | |
720 | AioContext *ctx = iothread_get_aio_context(iothread); | |
721 | BlockBackend *blk; | |
722 | BlockDriverState *bs; | |
723 | ||
724 | blk = blk_new(ctx, BLK_PERM_ALL, BLK_PERM_ALL); | |
725 | bs = bdrv_new_open_driver(&bdrv_test, "base", BDRV_O_RDWR, &error_abort); | |
726 | bs->total_sectors = 65536 / BDRV_SECTOR_SIZE; | |
727 | ||
728 | /* Add node to BlockBackend that has an iothread context assigned */ | |
729 | blk_insert_bs(blk, bs, &error_abort); | |
730 | g_assert(blk_get_aio_context(blk) == ctx); | |
731 | g_assert(bdrv_get_aio_context(bs) == ctx); | |
732 | ||
733 | /* Remove the node again */ | |
1b285657 | 734 | aio_context_acquire(ctx); |
2e9cdab3 | 735 | blk_remove_bs(blk); |
1b285657 | 736 | aio_context_release(ctx); |
2e9cdab3 | 737 | g_assert(blk_get_aio_context(blk) == ctx); |
ad943dcb | 738 | g_assert(bdrv_get_aio_context(bs) == qemu_get_aio_context()); |
2e9cdab3 KW |
739 | |
740 | /* Re-attach the node */ | |
741 | blk_insert_bs(blk, bs, &error_abort); | |
742 | g_assert(blk_get_aio_context(blk) == ctx); | |
743 | g_assert(bdrv_get_aio_context(bs) == ctx); | |
744 | ||
1b285657 | 745 | aio_context_acquire(ctx); |
2e9cdab3 | 746 | blk_set_aio_context(blk, qemu_get_aio_context(), &error_abort); |
1b285657 | 747 | aio_context_release(ctx); |
2e9cdab3 KW |
748 | bdrv_unref(bs); |
749 | blk_unref(blk); | |
750 | } | |
751 | ||
4720cbee KW |
752 | int main(int argc, char **argv) |
753 | { | |
754 | int i; | |
755 | ||
756 | bdrv_init(); | |
757 | qemu_init_main_loop(&error_abort); | |
758 | ||
759 | g_test_init(&argc, &argv, NULL); | |
760 | ||
761 | for (i = 0; i < ARRAY_SIZE(sync_op_tests); i++) { | |
762 | const SyncOpTest *t = &sync_op_tests[i]; | |
763 | g_test_add_data_func(t->name, t, test_sync_op); | |
764 | } | |
765 | ||
93c60f38 | 766 | g_test_add_func("/attach/blockjob", test_attach_blockjob); |
48946d7d | 767 | g_test_add_func("/attach/second_node", test_attach_second_node); |
2e9cdab3 | 768 | g_test_add_func("/attach/preserve_blk_ctx", test_attach_preserve_blk_ctx); |
7e2f096a KW |
769 | g_test_add_func("/propagate/basic", test_propagate_basic); |
770 | g_test_add_func("/propagate/diamond", test_propagate_diamond); | |
012056f4 | 771 | g_test_add_func("/propagate/mirror", test_propagate_mirror); |
93c60f38 | 772 | |
4720cbee KW |
773 | return g_test_run(); |
774 | } |