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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_client.h" | |
5 | #include "cls/rbd/cls_rbd_types.h" | |
6 | #include "common/dout.h" | |
7 | #include "common/errno.h" | |
8 | #include "include/assert.h" | |
9 | #include "librbd/ImageState.h" | |
10 | #include "librbd/Journal.h" | |
11 | #include "librbd/image/CloneRequest.h" | |
12 | #include "librbd/image/CreateRequest.h" | |
13 | #include "librbd/image/RemoveRequest.h" | |
14 | #include "librbd/image/RefreshRequest.h" | |
15 | #include "librbd/mirror/EnableRequest.h" | |
16 | ||
17 | #define dout_subsys ceph_subsys_rbd | |
18 | #undef dout_prefix | |
19 | #define dout_prefix *_dout << "librbd::image::CloneRequest: " | |
20 | ||
21 | namespace librbd { | |
22 | namespace image { | |
23 | ||
24 | using util::create_rados_callback; | |
25 | using util::create_context_callback; | |
26 | using util::create_async_context_callback; | |
27 | ||
28 | template <typename I> | |
29 | CloneRequest<I>::CloneRequest(I *p_imctx, IoCtx &c_ioctx, | |
30 | const std::string &c_name, | |
31 | const std::string &c_id, | |
32 | ImageOptions c_options, | |
33 | const std::string &non_primary_global_image_id, | |
34 | const std::string &primary_mirror_uuid, | |
35 | ContextWQ *op_work_queue, Context *on_finish) | |
36 | : m_p_imctx(p_imctx), m_ioctx(c_ioctx), m_name(c_name), m_id(c_id), | |
37 | m_opts(c_options), | |
38 | m_pspec(m_p_imctx->md_ctx.get_id(), m_p_imctx->id, m_p_imctx->snap_id), | |
39 | m_non_primary_global_image_id(non_primary_global_image_id), | |
40 | m_primary_mirror_uuid(primary_mirror_uuid), | |
41 | m_op_work_queue(op_work_queue), m_on_finish(on_finish), | |
42 | m_use_p_features(true) { | |
43 | ||
44 | m_cct = reinterpret_cast<CephContext *>(m_ioctx.cct()); | |
45 | ||
46 | bool default_format_set; | |
47 | m_opts.is_set(RBD_IMAGE_OPTION_FORMAT, &default_format_set); | |
48 | if (!default_format_set) { | |
49 | m_opts.set(RBD_IMAGE_OPTION_FORMAT, static_cast<uint64_t>(2)); | |
50 | } | |
51 | ||
52 | ldout(m_cct, 20) << "clone " << &m_p_imctx->md_ctx << " name " << m_p_imctx->name | |
53 | << " snap " << m_p_imctx->snap_name << " to child " << &m_ioctx | |
54 | << " name " << m_name << " opts = " << &m_opts << dendl; | |
55 | return; | |
56 | } | |
57 | ||
58 | template <typename I> | |
59 | void CloneRequest<I>::send() { | |
60 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
61 | validate_options(); | |
62 | } | |
63 | ||
64 | template <typename I> | |
65 | void CloneRequest<I>::validate_options() { | |
66 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
67 | ||
68 | uint64_t format = 0; | |
69 | m_opts.get(RBD_IMAGE_OPTION_FORMAT, &format); | |
70 | if (format < 2) { | |
71 | lderr(m_cct) << "format 2 or later required for clone" << dendl; | |
72 | return complete(-EINVAL); | |
73 | } | |
74 | ||
75 | if (m_opts.get(RBD_IMAGE_OPTION_FEATURES, &m_features) == 0) { | |
76 | if (m_features & ~RBD_FEATURES_ALL) { | |
77 | lderr(m_cct) << "librbd does not support requested features" << dendl; | |
78 | return complete(-ENOSYS); | |
79 | } | |
80 | m_use_p_features = false; | |
81 | } | |
82 | ||
83 | send_validate_parent(); | |
84 | } | |
85 | ||
86 | template <typename I> | |
87 | void CloneRequest<I>::send_validate_parent() { | |
88 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
89 | ||
90 | if (m_p_imctx->snap_id == CEPH_NOSNAP) { | |
91 | lderr(m_cct) << "image to be cloned must be a snapshot" << dendl; | |
92 | return complete(-EINVAL); | |
93 | } | |
94 | ||
95 | if (m_p_imctx->old_format) { | |
96 | lderr(m_cct) << "parent image must be in new format" << dendl; | |
97 | return complete(-EINVAL); | |
98 | } | |
99 | ||
100 | int r = 0; | |
101 | bool snap_protected; | |
102 | m_p_imctx->snap_lock.get_read(); | |
103 | m_p_features = m_p_imctx->features; | |
104 | m_size = m_p_imctx->get_image_size(m_p_imctx->snap_id); | |
105 | r = m_p_imctx->is_snap_protected(m_p_imctx->snap_id, &snap_protected); | |
106 | m_p_imctx->snap_lock.put_read(); | |
107 | ||
108 | if ((m_p_features & RBD_FEATURE_LAYERING) != RBD_FEATURE_LAYERING) { | |
109 | lderr(m_cct) << "parent image must support layering" << dendl; | |
110 | return complete(-ENOSYS); | |
111 | } | |
112 | ||
113 | if (r < 0) { | |
114 | lderr(m_cct) << "unable to locate parent's snapshot" << dendl; | |
115 | return complete(r); | |
116 | } | |
117 | ||
118 | if (!snap_protected) { | |
119 | lderr(m_cct) << "parent snapshot must be protected" << dendl; | |
120 | return complete(-EINVAL); | |
121 | } | |
122 | ||
123 | if ((m_p_features & RBD_FEATURE_JOURNALING) != 0) { | |
124 | m_force_non_primary = !m_non_primary_global_image_id.empty(); | |
125 | using klass = CloneRequest<I>; | |
126 | Context *ctx = create_context_callback< | |
127 | klass, &klass::handle_validate_parent>(this); | |
128 | ||
129 | Journal<I>::is_tag_owner(m_p_imctx, &m_is_primary, ctx); | |
130 | return; | |
131 | } | |
132 | ||
133 | send_validate_child(); | |
134 | } | |
135 | ||
136 | template <typename I> | |
137 | void CloneRequest<I>::handle_validate_parent(int r) { | |
138 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
139 | ||
140 | if (r < 0) { | |
141 | lderr(m_cct) << "failed to determine tag ownership: " << cpp_strerror(r) | |
142 | << dendl; | |
143 | return complete(r); | |
144 | } | |
145 | ||
146 | if ((m_p_features & RBD_FEATURE_JOURNALING) != 0) { | |
147 | if (!m_is_primary && !m_force_non_primary) { | |
148 | lderr(m_cct) << "parent is non-primary mirrored image" << dendl; | |
149 | return complete(-EINVAL); | |
150 | } | |
151 | } | |
152 | ||
153 | send_validate_child(); | |
154 | } | |
155 | ||
156 | template <typename I> | |
157 | void CloneRequest<I>::send_validate_child() { | |
158 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
159 | ||
160 | using klass = CloneRequest<I>; | |
161 | librados::AioCompletion *comp = create_rados_callback<klass, &klass::handle_validate_child>(this); | |
162 | ||
163 | librados::ObjectReadOperation op; | |
164 | op.stat(NULL, NULL, NULL); | |
165 | ||
166 | int r = m_ioctx.aio_operate(util::old_header_name(m_name), comp, &op, &m_out_bl); | |
167 | assert(r == 0); | |
168 | comp->release(); | |
169 | } | |
170 | ||
171 | template <typename I> | |
172 | void CloneRequest<I>::handle_validate_child(int r) { | |
173 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
174 | ||
175 | if (r != -ENOENT) { | |
176 | lderr(m_cct) << "rbd image " << m_name << " already exists" << dendl; | |
177 | return complete(r); | |
178 | } | |
179 | ||
180 | send_create(); | |
181 | } | |
182 | ||
183 | template <typename I> | |
184 | void CloneRequest<I>::send_create() { | |
185 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
186 | ||
187 | if (m_use_p_features) { | |
188 | m_features = m_p_features; | |
189 | } | |
190 | ||
191 | uint64_t order = m_p_imctx->order; | |
192 | if (m_opts.get(RBD_IMAGE_OPTION_ORDER, &order) != 0) { | |
193 | m_opts.set(RBD_IMAGE_OPTION_ORDER, order); | |
194 | } | |
195 | if ((m_features & RBD_FEATURE_LAYERING) != RBD_FEATURE_LAYERING) { | |
196 | lderr(m_cct) << "cloning image must support layering" << dendl; | |
197 | return complete(-ENOSYS); | |
198 | } | |
199 | m_opts.set(RBD_IMAGE_OPTION_FEATURES, m_features); | |
200 | ||
201 | using klass = CloneRequest<I>; | |
202 | Context *ctx = create_context_callback<klass, &klass::handle_create>(this); | |
203 | ||
204 | RWLock::RLocker snap_locker(m_p_imctx->snap_lock); | |
205 | CreateRequest<I> *req = CreateRequest<I>::create( | |
206 | m_ioctx, m_name, m_id, m_size, m_opts, m_non_primary_global_image_id, | |
207 | m_primary_mirror_uuid, true, m_op_work_queue, ctx); | |
208 | req->send(); | |
209 | } | |
210 | ||
211 | template <typename I> | |
212 | void CloneRequest<I>::handle_create(int r) { | |
213 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
214 | ||
215 | if (r < 0) { | |
216 | lderr(m_cct) << "error creating child: " << cpp_strerror(r) << dendl; | |
217 | return complete(r); | |
218 | } | |
219 | send_open(); | |
220 | } | |
221 | ||
222 | template <typename I> | |
223 | void CloneRequest<I>::send_open() { | |
224 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
225 | ||
226 | m_imctx = I::create(m_name, "", NULL, m_ioctx, false); | |
227 | ||
228 | using klass = CloneRequest<I>; | |
229 | Context *ctx = create_context_callback<klass, &klass::handle_open>(this); | |
230 | ||
231 | m_imctx->state->open(true, ctx); | |
232 | } | |
233 | ||
234 | template <typename I> | |
235 | void CloneRequest<I>::handle_open(int r) { | |
236 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
237 | ||
238 | if (r < 0) { | |
239 | lderr(m_cct) << "Error opening new image: " << cpp_strerror(r) << dendl; | |
240 | m_r_saved = r; | |
241 | return send_remove(); | |
242 | } | |
243 | ||
244 | send_set_parent(); | |
245 | } | |
246 | ||
247 | template <typename I> | |
248 | void CloneRequest<I>::send_set_parent() { | |
249 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
250 | ||
251 | librados::ObjectWriteOperation op; | |
252 | librbd::cls_client::set_parent(&op, m_pspec, m_size); | |
253 | ||
254 | using klass = CloneRequest<I>; | |
255 | librados::AioCompletion *comp = | |
256 | create_rados_callback<klass, &klass::handle_set_parent>(this); | |
257 | int r = m_imctx->md_ctx.aio_operate(m_imctx->header_oid, | |
258 | comp, &op); | |
259 | assert(r == 0); | |
260 | comp->release(); | |
261 | } | |
262 | ||
263 | template <typename I> | |
264 | void CloneRequest<I>::handle_set_parent(int r) { | |
265 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
266 | ||
267 | if (r < 0) { | |
268 | lderr(m_cct) << "couldn't set parent: " << cpp_strerror(r) << dendl; | |
269 | m_r_saved = r; | |
270 | return send_close(); | |
271 | } | |
272 | ||
273 | send_add_child(); | |
274 | } | |
275 | ||
276 | template <typename I> | |
277 | void CloneRequest<I>::send_add_child() { | |
278 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
279 | ||
280 | librados::ObjectWriteOperation op; | |
281 | cls_client::add_child(&op, m_pspec, m_id); | |
282 | ||
283 | using klass = CloneRequest<I>; | |
284 | librados::AioCompletion *comp = | |
285 | create_rados_callback<klass, &klass::handle_add_child>(this); | |
286 | int r = m_ioctx.aio_operate(RBD_CHILDREN, comp, &op); | |
287 | assert(r == 0); | |
288 | comp->release(); | |
289 | } | |
290 | ||
291 | template <typename I> | |
292 | void CloneRequest<I>::handle_add_child(int r) { | |
293 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
294 | ||
295 | if (r < 0) { | |
296 | lderr(m_cct) << "couldn't add child: " << cpp_strerror(r) << dendl; | |
297 | m_r_saved = r; | |
298 | return send_close(); | |
299 | } | |
300 | ||
301 | send_refresh(); | |
302 | } | |
303 | ||
304 | template <typename I> | |
305 | void CloneRequest<I>::send_refresh() { | |
306 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
307 | ||
308 | using klass = CloneRequest<I>; | |
309 | RefreshRequest<I> *req = RefreshRequest<I>::create( | |
310 | *m_imctx, false, false, | |
311 | create_context_callback<klass, &klass::handle_refresh>(this)); | |
312 | req->send(); | |
313 | } | |
314 | ||
315 | template <typename I> | |
316 | void CloneRequest<I>::handle_refresh(int r) { | |
317 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
318 | ||
d2e6a577 | 319 | bool snap_protected = false; |
7c673cae FG |
320 | if (r == 0) { |
321 | m_p_imctx->snap_lock.get_read(); | |
322 | r = m_p_imctx->is_snap_protected(m_p_imctx->snap_id, &snap_protected); | |
323 | m_p_imctx->snap_lock.put_read(); | |
324 | } | |
325 | ||
326 | if (r < 0 || !snap_protected) { | |
327 | m_r_saved = -EINVAL; | |
328 | return send_close(); | |
329 | } | |
330 | ||
331 | send_metadata_list(); | |
332 | } | |
333 | ||
334 | template <typename I> | |
335 | void CloneRequest<I>::send_metadata_list() { | |
336 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
337 | ||
338 | librados::ObjectReadOperation op; | |
339 | cls_client::metadata_list_start(&op, "", 0); | |
340 | ||
341 | using klass = CloneRequest<I>; | |
342 | librados::AioCompletion *comp = | |
343 | create_rados_callback<klass, &klass::handle_metadata_list>(this); | |
344 | m_out_bl.clear(); | |
345 | m_p_imctx->md_ctx.aio_operate(m_p_imctx->header_oid, | |
346 | comp, &op, &m_out_bl); | |
347 | comp->release(); | |
348 | } | |
349 | ||
350 | template <typename I> | |
351 | void CloneRequest<I>::handle_metadata_list(int r) { | |
352 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
353 | ||
354 | if (r == 0) { | |
355 | bufferlist::iterator it = m_out_bl.begin(); | |
356 | r = cls_client::metadata_list_finish(&it, &m_pairs); | |
357 | } | |
358 | ||
359 | if (r < 0 && r != -EOPNOTSUPP && r != -EIO) { | |
360 | lderr(m_cct) << "couldn't list metadata: " << cpp_strerror(r) << dendl; | |
361 | m_r_saved = r; | |
362 | send_remove_child(); | |
363 | } else if (r == 0 && !m_pairs.empty()) { | |
364 | send_metadata_set(); | |
365 | } else { | |
366 | get_mirror_mode(); | |
367 | } | |
368 | } | |
369 | ||
370 | template <typename I> | |
371 | void CloneRequest<I>::send_metadata_set() { | |
372 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
373 | ||
374 | librados::ObjectWriteOperation op; | |
375 | cls_client::metadata_set(&op, m_pairs); | |
376 | ||
377 | using klass = CloneRequest<I>; | |
378 | librados::AioCompletion *comp = | |
379 | create_rados_callback<klass, &klass::handle_metadata_set>(this); | |
380 | int r = m_ioctx.aio_operate(m_imctx->header_oid, comp, &op); | |
381 | assert(r == 0); | |
382 | comp->release(); | |
383 | } | |
384 | ||
385 | template <typename I> | |
386 | void CloneRequest<I>::handle_metadata_set(int r) { | |
387 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
388 | ||
389 | if (r < 0) { | |
390 | lderr(m_cct) << "couldn't set metadata: " << cpp_strerror(r) << dendl; | |
391 | m_r_saved = r; | |
392 | send_remove_child(); | |
393 | } else { | |
394 | get_mirror_mode(); | |
395 | } | |
396 | } | |
397 | ||
398 | template <typename I> | |
399 | void CloneRequest<I>::get_mirror_mode() { | |
400 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
401 | ||
402 | if (!m_imctx->test_features(RBD_FEATURE_JOURNALING)) { | |
403 | send_close(); | |
404 | return; | |
405 | } | |
406 | ||
407 | librados::ObjectReadOperation op; | |
408 | cls_client::mirror_mode_get_start(&op); | |
409 | ||
410 | using klass = CloneRequest<I>; | |
411 | librados::AioCompletion *comp = | |
412 | create_rados_callback<klass, &klass::handle_get_mirror_mode>(this); | |
413 | m_out_bl.clear(); | |
414 | m_imctx->md_ctx.aio_operate(RBD_MIRRORING, | |
415 | comp, &op, &m_out_bl); | |
416 | comp->release(); | |
417 | } | |
418 | ||
419 | template <typename I> | |
420 | void CloneRequest<I>::handle_get_mirror_mode(int r) { | |
421 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
422 | ||
423 | if (r == 0) { | |
7c673cae FG |
424 | bufferlist::iterator it = m_out_bl.begin(); |
425 | r = cls_client::mirror_mode_get_finish(&it, &m_mirror_mode); | |
426 | } | |
427 | ||
428 | if (r < 0 && r != -ENOENT) { | |
c07f9fc5 FG |
429 | lderr(m_cct) << "failed to retrieve mirror mode: " << cpp_strerror(r) |
430 | << dendl; | |
431 | ||
7c673cae FG |
432 | m_r_saved = r; |
433 | send_remove_child(); | |
434 | } else { | |
435 | if (m_mirror_mode == cls::rbd::MIRROR_MODE_POOL || | |
436 | !m_non_primary_global_image_id.empty()) { | |
437 | send_enable_mirror(); | |
438 | } else { | |
439 | send_close(); | |
440 | } | |
441 | } | |
442 | } | |
443 | ||
444 | template <typename I> | |
445 | void CloneRequest<I>::send_enable_mirror() { | |
446 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
447 | ||
448 | using klass = CloneRequest<I>; | |
449 | Context *ctx = create_context_callback<klass, &klass::handle_enable_mirror>(this); | |
450 | ||
451 | mirror::EnableRequest<I> *req = mirror::EnableRequest<I>::create( | |
452 | m_imctx->md_ctx, m_id, m_non_primary_global_image_id, | |
453 | m_imctx->op_work_queue, ctx); | |
454 | req->send(); | |
455 | } | |
456 | ||
457 | template <typename I> | |
458 | void CloneRequest<I>::handle_enable_mirror(int r) { | |
459 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
460 | ||
461 | if (r < 0) { | |
462 | lderr(m_cct) << "failed to enable mirroring: " << cpp_strerror(r) | |
463 | << dendl; | |
464 | m_r_saved = r; | |
465 | send_remove_child(); | |
466 | } else { | |
467 | send_close(); | |
468 | } | |
469 | } | |
470 | ||
471 | template <typename I> | |
472 | void CloneRequest<I>::send_close() { | |
473 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
474 | ||
475 | assert(m_imctx != nullptr); | |
476 | ||
477 | using klass = CloneRequest<I>; | |
478 | Context *ctx = create_async_context_callback( | |
479 | *m_imctx, create_context_callback< | |
480 | klass, &klass::handle_close>(this)); | |
481 | m_imctx->state->close(ctx); | |
482 | } | |
483 | ||
484 | template <typename I> | |
485 | void CloneRequest<I>::handle_close(int r) { | |
486 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
487 | ||
488 | m_imctx->destroy(); | |
489 | m_imctx = nullptr; | |
490 | ||
491 | if (r < 0) { | |
492 | lderr(m_cct) << "couldn't close image: " << cpp_strerror(r) << dendl; | |
493 | return complete(r); | |
494 | } | |
495 | ||
496 | if (m_r_saved == 0) { | |
497 | complete(0); | |
498 | } else { | |
499 | send_remove(); | |
500 | } | |
501 | } | |
502 | ||
503 | template <typename I> | |
504 | void CloneRequest<I>::send_remove_child() { | |
505 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
506 | ||
507 | librados::ObjectWriteOperation op; | |
508 | cls_client::remove_child(&op, m_pspec, m_id); | |
509 | ||
510 | using klass = CloneRequest<I>; | |
511 | librados::AioCompletion *comp = | |
512 | create_rados_callback<klass, &klass::handle_remove_child>(this); | |
513 | int r = m_p_imctx->md_ctx.aio_operate(RBD_CHILDREN, comp, &op); | |
514 | assert(r == 0); | |
515 | comp->release(); | |
516 | } | |
517 | ||
518 | template <typename I> | |
519 | void CloneRequest<I>::handle_remove_child(int r) { | |
520 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
521 | ||
522 | if (r < 0) { | |
523 | lderr(m_cct) << "Error removing failed clone from list of children: " | |
524 | << cpp_strerror(r) << dendl; | |
525 | } | |
526 | ||
527 | send_close(); | |
528 | } | |
529 | ||
530 | template <typename I> | |
531 | void CloneRequest<I>::send_remove() { | |
532 | ldout(m_cct, 20) << this << " " << __func__ << dendl; | |
533 | ||
534 | using klass = CloneRequest<I>; | |
535 | Context *ctx = create_context_callback<klass, &klass::handle_remove>(this); | |
536 | ||
537 | librbd::image::RemoveRequest<> *req = librbd::image::RemoveRequest<>::create( | |
538 | m_ioctx, m_name, m_id, false, false, m_no_op, m_op_work_queue, ctx); | |
539 | req->send(); | |
540 | } | |
541 | ||
542 | template <typename I> | |
543 | void CloneRequest<I>::handle_remove(int r) { | |
544 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
545 | ||
546 | if (r < 0) { | |
547 | lderr(m_cct) << "Error removing failed clone: " | |
548 | << cpp_strerror(r) << dendl; | |
549 | } | |
550 | complete(r); | |
551 | } | |
552 | ||
553 | template <typename I> | |
554 | void CloneRequest<I>::complete(int r) { | |
555 | ldout(m_cct, 20) << this << " " << __func__ << " r=" << r << dendl; | |
556 | ||
557 | if (r == 0) { | |
558 | ldout(m_cct, 20) << "done." << dendl; | |
559 | } | |
560 | ||
561 | m_on_finish->complete(r); | |
562 | delete this; | |
563 | } | |
564 | ||
565 | } //namespace image | |
566 | } //namespace librbd | |
567 | ||
568 | template class librbd::image::CloneRequest<librbd::ImageCtx>; |