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2f0c9fe6 PB |
1 | /* |
2 | * QEMU System Emulator block driver | |
3 | * | |
4 | * Copyright (c) 2011 IBM Corp. | |
5 | * Copyright (c) 2012 Red Hat, Inc. | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
23 | * THE SOFTWARE. | |
24 | */ | |
25 | ||
d38ea87a | 26 | #include "qemu/osdep.h" |
2f0c9fe6 | 27 | #include "qemu-common.h" |
737e150e | 28 | #include "block/block.h" |
c87621ea | 29 | #include "block/blockjob_int.h" |
737e150e | 30 | #include "block/block_int.h" |
c9de4050 | 31 | #include "block/trace.h" |
373340b2 | 32 | #include "sysemu/block-backend.h" |
e688df6b | 33 | #include "qapi/error.h" |
9af23989 | 34 | #include "qapi/qapi-events-block-core.h" |
cc7a8ea7 | 35 | #include "qapi/qmp/qerror.h" |
10817bf0 | 36 | #include "qemu/coroutine.h" |
1de7afc9 | 37 | #include "qemu/timer.h" |
2f0c9fe6 | 38 | |
88691b37 PB |
39 | /* |
40 | * The block job API is composed of two categories of functions. | |
41 | * | |
42 | * The first includes functions used by the monitor. The monitor is | |
43 | * peculiar in that it accesses the block job list with block_job_get, and | |
44 | * therefore needs consistency across block_job_get and the actual operation | |
45 | * (e.g. block_job_set_speed). The consistency is achieved with | |
46 | * aio_context_acquire/release. These functions are declared in blockjob.h. | |
47 | * | |
48 | * The second includes functions used by the block job drivers and sometimes | |
49 | * by the core block layer. These do not care about locking, because the | |
50 | * whole coroutine runs under the AioContext lock, and are declared in | |
51 | * blockjob_int.h. | |
52 | */ | |
53 | ||
e7c1d78b | 54 | static bool is_block_job(Job *job) |
a7112795 | 55 | { |
e7c1d78b KW |
56 | return job_type(job) == JOB_TYPE_BACKUP || |
57 | job_type(job) == JOB_TYPE_COMMIT || | |
58 | job_type(job) == JOB_TYPE_MIRROR || | |
59 | job_type(job) == JOB_TYPE_STREAM; | |
60 | } | |
61 | ||
62 | BlockJob *block_job_next(BlockJob *bjob) | |
63 | { | |
64 | Job *job = bjob ? &bjob->job : NULL; | |
65 | ||
66 | do { | |
67 | job = job_next(job); | |
68 | } while (job && !is_block_job(job)); | |
69 | ||
70 | return job ? container_of(job, BlockJob, job) : NULL; | |
a7112795 AG |
71 | } |
72 | ||
ffb1f10c AG |
73 | BlockJob *block_job_get(const char *id) |
74 | { | |
e7c1d78b | 75 | Job *job = job_get(id); |
ffb1f10c | 76 | |
e7c1d78b KW |
77 | if (job && is_block_job(job)) { |
78 | return container_of(job, BlockJob, job); | |
79 | } else { | |
80 | return NULL; | |
ffb1f10c | 81 | } |
ffb1f10c AG |
82 | } |
83 | ||
80fa2c75 | 84 | void block_job_free(Job *job) |
05b0d8e3 | 85 | { |
80fa2c75 KW |
86 | BlockJob *bjob = container_of(job, BlockJob, job); |
87 | BlockDriverState *bs = blk_bs(bjob->blk); | |
88 | ||
80fa2c75 KW |
89 | bs->job = NULL; |
90 | block_job_remove_all_bdrv(bjob); | |
80fa2c75 KW |
91 | blk_unref(bjob->blk); |
92 | error_free(bjob->blocker); | |
05b0d8e3 PB |
93 | } |
94 | ||
b69f777d | 95 | void block_job_drain(Job *job) |
bae8196d | 96 | { |
b69f777d | 97 | BlockJob *bjob = container_of(job, BlockJob, job); |
9f6bb4c0 KW |
98 | const JobDriver *drv = job->driver; |
99 | BlockJobDriver *bjdrv = container_of(drv, BlockJobDriver, job_driver); | |
bae8196d | 100 | |
b69f777d | 101 | blk_drain(bjob->blk); |
9f6bb4c0 KW |
102 | if (bjdrv->drain) { |
103 | bjdrv->drain(bjob); | |
bae8196d PB |
104 | } |
105 | } | |
106 | ||
f321dcb5 PB |
107 | static char *child_job_get_parent_desc(BdrvChild *c) |
108 | { | |
109 | BlockJob *job = c->opaque; | |
252291ea | 110 | return g_strdup_printf("%s job '%s'", job_type_str(&job->job), job->job.id); |
f321dcb5 PB |
111 | } |
112 | ||
ad90feba | 113 | static void child_job_drained_begin(BdrvChild *c) |
f321dcb5 | 114 | { |
ad90feba | 115 | BlockJob *job = c->opaque; |
b15de828 | 116 | job_pause(&job->job); |
f321dcb5 PB |
117 | } |
118 | ||
89bd0305 KW |
119 | static bool child_job_drained_poll(BdrvChild *c) |
120 | { | |
121 | BlockJob *bjob = c->opaque; | |
122 | Job *job = &bjob->job; | |
123 | const BlockJobDriver *drv = block_job_driver(bjob); | |
124 | ||
125 | /* An inactive or completed job doesn't have any pending requests. Jobs | |
126 | * with !job->busy are either already paused or have a pause point after | |
127 | * being reentered, so no job driver code will run before they pause. */ | |
b5a7a057 | 128 | if (!job->busy || job_is_completed(job)) { |
89bd0305 KW |
129 | return false; |
130 | } | |
131 | ||
132 | /* Otherwise, assume that it isn't fully stopped yet, but allow the job to | |
133 | * override this assumption. */ | |
134 | if (drv->drained_poll) { | |
135 | return drv->drained_poll(bjob); | |
136 | } else { | |
137 | return true; | |
138 | } | |
139 | } | |
140 | ||
ad90feba | 141 | static void child_job_drained_end(BdrvChild *c) |
f321dcb5 | 142 | { |
ad90feba | 143 | BlockJob *job = c->opaque; |
b15de828 | 144 | job_resume(&job->job); |
f321dcb5 PB |
145 | } |
146 | ||
9ff7f0df KW |
147 | static bool child_job_can_set_aio_ctx(BdrvChild *c, AioContext *ctx, |
148 | GSList **ignore, Error **errp) | |
149 | { | |
150 | BlockJob *job = c->opaque; | |
151 | GSList *l; | |
152 | ||
153 | for (l = job->nodes; l; l = l->next) { | |
154 | BdrvChild *sibling = l->data; | |
155 | if (!bdrv_child_can_set_aio_context(sibling, ctx, ignore, errp)) { | |
156 | return false; | |
157 | } | |
158 | } | |
159 | return true; | |
160 | } | |
161 | ||
162 | static void child_job_set_aio_ctx(BdrvChild *c, AioContext *ctx, | |
163 | GSList **ignore) | |
164 | { | |
165 | BlockJob *job = c->opaque; | |
166 | GSList *l; | |
167 | ||
168 | for (l = job->nodes; l; l = l->next) { | |
169 | BdrvChild *sibling = l->data; | |
170 | if (g_slist_find(*ignore, sibling)) { | |
171 | continue; | |
172 | } | |
173 | *ignore = g_slist_prepend(*ignore, sibling); | |
174 | bdrv_set_aio_context_ignore(sibling->bs, ctx, ignore); | |
175 | } | |
657e1203 KW |
176 | |
177 | job->job.aio_context = ctx; | |
9ff7f0df KW |
178 | } |
179 | ||
ad90feba KW |
180 | static const BdrvChildRole child_job = { |
181 | .get_parent_desc = child_job_get_parent_desc, | |
182 | .drained_begin = child_job_drained_begin, | |
89bd0305 | 183 | .drained_poll = child_job_drained_poll, |
ad90feba | 184 | .drained_end = child_job_drained_end, |
9ff7f0df KW |
185 | .can_set_aio_ctx = child_job_can_set_aio_ctx, |
186 | .set_aio_ctx = child_job_set_aio_ctx, | |
ad90feba | 187 | .stay_at_node = true, |
f321dcb5 PB |
188 | }; |
189 | ||
bbc02b90 KW |
190 | void block_job_remove_all_bdrv(BlockJob *job) |
191 | { | |
192 | GSList *l; | |
193 | for (l = job->nodes; l; l = l->next) { | |
194 | BdrvChild *c = l->data; | |
195 | bdrv_op_unblock_all(c->bs, job->blocker); | |
196 | bdrv_root_unref_child(c); | |
197 | } | |
198 | g_slist_free(job->nodes); | |
199 | job->nodes = NULL; | |
200 | } | |
201 | ||
76d554e2 KW |
202 | int block_job_add_bdrv(BlockJob *job, const char *name, BlockDriverState *bs, |
203 | uint64_t perm, uint64_t shared_perm, Error **errp) | |
23d402d4 | 204 | { |
76d554e2 KW |
205 | BdrvChild *c; |
206 | ||
b441dc71 | 207 | bdrv_ref(bs); |
132ada80 KW |
208 | if (job->job.aio_context != qemu_get_aio_context()) { |
209 | aio_context_release(job->job.aio_context); | |
210 | } | |
211 | c = bdrv_root_attach_child(bs, name, &child_job, job->job.aio_context, | |
212 | perm, shared_perm, job, errp); | |
213 | if (job->job.aio_context != qemu_get_aio_context()) { | |
214 | aio_context_acquire(job->job.aio_context); | |
215 | } | |
76d554e2 KW |
216 | if (c == NULL) { |
217 | return -EPERM; | |
218 | } | |
219 | ||
220 | job->nodes = g_slist_prepend(job->nodes, c); | |
23d402d4 | 221 | bdrv_op_block_all(bs, job->blocker); |
76d554e2 KW |
222 | |
223 | return 0; | |
23d402d4 AG |
224 | } |
225 | ||
34dc97b9 KW |
226 | static void block_job_on_idle(Notifier *n, void *opaque) |
227 | { | |
cfe29d82 | 228 | aio_wait_kick(); |
34dc97b9 KW |
229 | } |
230 | ||
559b935f JS |
231 | bool block_job_is_internal(BlockJob *job) |
232 | { | |
33e9e9bd | 233 | return (job->job.id == NULL); |
559b935f JS |
234 | } |
235 | ||
bd21935b KW |
236 | const BlockJobDriver *block_job_driver(BlockJob *job) |
237 | { | |
9f6bb4c0 | 238 | return container_of(job->job.driver, BlockJobDriver, job_driver); |
bd21935b KW |
239 | } |
240 | ||
da01ff7f KW |
241 | /* Assumes the job_mutex is held */ |
242 | static bool job_timer_pending(Job *job) | |
243 | { | |
244 | return timer_pending(&job->sleep_timer); | |
245 | } | |
246 | ||
2f0c9fe6 PB |
247 | void block_job_set_speed(BlockJob *job, int64_t speed, Error **errp) |
248 | { | |
aa9ef2e6 | 249 | int64_t old_speed = job->speed; |
2f0c9fe6 | 250 | |
a50c2ab8 | 251 | if (job_apply_verb(&job->job, JOB_VERB_SET_SPEED, errp)) { |
0ec4dfb8 JS |
252 | return; |
253 | } | |
18bb6928 KW |
254 | if (speed < 0) { |
255 | error_setg(errp, QERR_INVALID_PARAMETER, "speed"); | |
2f0c9fe6 PB |
256 | return; |
257 | } | |
258 | ||
18bb6928 KW |
259 | ratelimit_set_speed(&job->limit, speed, BLOCK_JOB_SLICE_TIME); |
260 | ||
2f0c9fe6 | 261 | job->speed = speed; |
d4fce188 | 262 | if (speed && speed <= old_speed) { |
aa9ef2e6 JS |
263 | return; |
264 | } | |
265 | ||
266 | /* kick only if a timer is pending */ | |
da01ff7f | 267 | job_enter_cond(&job->job, job_timer_pending); |
2f0c9fe6 PB |
268 | } |
269 | ||
dee81d51 KW |
270 | int64_t block_job_ratelimit_get_delay(BlockJob *job, uint64_t n) |
271 | { | |
272 | if (!job->speed) { | |
273 | return 0; | |
274 | } | |
275 | ||
276 | return ratelimit_calculate_delay(&job->limit, n); | |
277 | } | |
278 | ||
559b935f | 279 | BlockJobInfo *block_job_query(BlockJob *job, Error **errp) |
30e628b7 | 280 | { |
559b935f JS |
281 | BlockJobInfo *info; |
282 | ||
283 | if (block_job_is_internal(job)) { | |
284 | error_setg(errp, "Cannot query QEMU internal jobs"); | |
285 | return NULL; | |
286 | } | |
287 | info = g_new0(BlockJobInfo, 1); | |
252291ea | 288 | info->type = g_strdup(job_type_str(&job->job)); |
33e9e9bd | 289 | info->device = g_strdup(job->job.id); |
da01ff7f KW |
290 | info->busy = atomic_read(&job->job.busy); |
291 | info->paused = job->job.pause_count > 0; | |
30a5c887 KW |
292 | info->offset = job->job.progress_current; |
293 | info->len = job->job.progress_total; | |
32c81a4a PB |
294 | info->speed = job->speed; |
295 | info->io_status = job->iostatus; | |
df956ae2 | 296 | info->ready = job_is_ready(&job->job), |
a50c2ab8 | 297 | info->status = job->job.status; |
bb02b65c KW |
298 | info->auto_finalize = job->job.auto_finalize; |
299 | info->auto_dismiss = job->job.auto_dismiss; | |
4ad35181 KW |
300 | info->has_error = job->job.ret != 0; |
301 | info->error = job->job.ret ? g_strdup(strerror(-job->job.ret)) : NULL; | |
30e628b7 PB |
302 | return info; |
303 | } | |
32c81a4a PB |
304 | |
305 | static void block_job_iostatus_set_err(BlockJob *job, int error) | |
306 | { | |
307 | if (job->iostatus == BLOCK_DEVICE_IO_STATUS_OK) { | |
308 | job->iostatus = error == ENOSPC ? BLOCK_DEVICE_IO_STATUS_NOSPACE : | |
309 | BLOCK_DEVICE_IO_STATUS_FAILED; | |
310 | } | |
311 | } | |
312 | ||
139a9f02 | 313 | static void block_job_event_cancelled(Notifier *n, void *opaque) |
bcada37b | 314 | { |
139a9f02 KW |
315 | BlockJob *job = opaque; |
316 | ||
559b935f JS |
317 | if (block_job_is_internal(job)) { |
318 | return; | |
319 | } | |
320 | ||
252291ea | 321 | qapi_event_send_block_job_cancelled(job_type(&job->job), |
33e9e9bd | 322 | job->job.id, |
30a5c887 KW |
323 | job->job.progress_total, |
324 | job->job.progress_current, | |
3ab72385 | 325 | job->speed); |
bcada37b | 326 | } |
32c81a4a | 327 | |
139a9f02 | 328 | static void block_job_event_completed(Notifier *n, void *opaque) |
a66a2a36 | 329 | { |
139a9f02 KW |
330 | BlockJob *job = opaque; |
331 | const char *msg = NULL; | |
332 | ||
559b935f JS |
333 | if (block_job_is_internal(job)) { |
334 | return; | |
335 | } | |
336 | ||
4ad35181 KW |
337 | if (job->job.ret < 0) { |
338 | msg = strerror(-job->job.ret); | |
139a9f02 KW |
339 | } |
340 | ||
252291ea | 341 | qapi_event_send_block_job_completed(job_type(&job->job), |
33e9e9bd | 342 | job->job.id, |
30a5c887 KW |
343 | job->job.progress_total, |
344 | job->job.progress_current, | |
bcada37b WX |
345 | job->speed, |
346 | !!msg, | |
3ab72385 | 347 | msg); |
a66a2a36 PB |
348 | } |
349 | ||
139a9f02 | 350 | static void block_job_event_pending(Notifier *n, void *opaque) |
5f241594 | 351 | { |
139a9f02 KW |
352 | BlockJob *job = opaque; |
353 | ||
5d4f3769 KW |
354 | if (block_job_is_internal(job)) { |
355 | return; | |
5f241594 | 356 | } |
5d4f3769 KW |
357 | |
358 | qapi_event_send_block_job_pending(job_type(&job->job), | |
3ab72385 | 359 | job->job.id); |
5f241594 JS |
360 | } |
361 | ||
2e1795b5 KW |
362 | static void block_job_event_ready(Notifier *n, void *opaque) |
363 | { | |
364 | BlockJob *job = opaque; | |
365 | ||
366 | if (block_job_is_internal(job)) { | |
367 | return; | |
368 | } | |
369 | ||
370 | qapi_event_send_block_job_ready(job_type(&job->job), | |
371 | job->job.id, | |
30a5c887 KW |
372 | job->job.progress_total, |
373 | job->job.progress_current, | |
3ab72385 | 374 | job->speed); |
2e1795b5 KW |
375 | } |
376 | ||
377 | ||
88691b37 PB |
378 | /* |
379 | * API for block job drivers and the block layer. These functions are | |
380 | * declared in blockjob_int.h. | |
381 | */ | |
382 | ||
383 | void *block_job_create(const char *job_id, const BlockJobDriver *driver, | |
62c9e416 | 384 | JobTxn *txn, BlockDriverState *bs, uint64_t perm, |
88691b37 PB |
385 | uint64_t shared_perm, int64_t speed, int flags, |
386 | BlockCompletionFunc *cb, void *opaque, Error **errp) | |
387 | { | |
388 | BlockBackend *blk; | |
389 | BlockJob *job; | |
390 | int ret; | |
391 | ||
392 | if (bs->job) { | |
393 | error_setg(errp, QERR_DEVICE_IN_USE, bdrv_get_device_name(bs)); | |
394 | return NULL; | |
395 | } | |
396 | ||
bb02b65c | 397 | if (job_id == NULL && !(flags & JOB_INTERNAL)) { |
88691b37 | 398 | job_id = bdrv_get_device_name(bs); |
88691b37 PB |
399 | } |
400 | ||
d861ab3a | 401 | blk = blk_new(bdrv_get_aio_context(bs), perm, shared_perm); |
88691b37 PB |
402 | ret = blk_insert_bs(blk, bs, errp); |
403 | if (ret < 0) { | |
404 | blk_unref(blk); | |
405 | return NULL; | |
406 | } | |
407 | ||
7eaa8fb5 | 408 | job = job_create(job_id, &driver->job_driver, txn, blk_get_aio_context(blk), |
4ad35181 | 409 | flags, cb, opaque, errp); |
33e9e9bd KW |
410 | if (job == NULL) { |
411 | blk_unref(blk); | |
412 | return NULL; | |
413 | } | |
414 | ||
e7c1d78b | 415 | assert(is_block_job(&job->job)); |
80fa2c75 | 416 | assert(job->job.driver->free == &block_job_free); |
b15de828 | 417 | assert(job->job.driver->user_resume == &block_job_user_resume); |
b69f777d | 418 | assert(job->job.driver->drain == &block_job_drain); |
e7c1d78b | 419 | |
9f6bb4c0 | 420 | job->blk = blk; |
88691b37 | 421 | |
139a9f02 KW |
422 | job->finalize_cancelled_notifier.notify = block_job_event_cancelled; |
423 | job->finalize_completed_notifier.notify = block_job_event_completed; | |
424 | job->pending_notifier.notify = block_job_event_pending; | |
2e1795b5 | 425 | job->ready_notifier.notify = block_job_event_ready; |
34dc97b9 | 426 | job->idle_notifier.notify = block_job_on_idle; |
139a9f02 KW |
427 | |
428 | notifier_list_add(&job->job.on_finalize_cancelled, | |
429 | &job->finalize_cancelled_notifier); | |
430 | notifier_list_add(&job->job.on_finalize_completed, | |
431 | &job->finalize_completed_notifier); | |
432 | notifier_list_add(&job->job.on_pending, &job->pending_notifier); | |
2e1795b5 | 433 | notifier_list_add(&job->job.on_ready, &job->ready_notifier); |
34dc97b9 | 434 | notifier_list_add(&job->job.on_idle, &job->idle_notifier); |
139a9f02 | 435 | |
88691b37 | 436 | error_setg(&job->blocker, "block device is in use by block job: %s", |
252291ea | 437 | job_type_str(&job->job)); |
88691b37 PB |
438 | block_job_add_bdrv(job, "main node", bs, 0, BLK_PERM_ALL, &error_abort); |
439 | bs->job = job; | |
440 | ||
88691b37 PB |
441 | bdrv_op_unblock(bs, BLOCK_OP_TYPE_DATAPLANE, job->blocker); |
442 | ||
9ff7f0df | 443 | blk_set_allow_aio_context_change(blk, true); |
88691b37 PB |
444 | |
445 | /* Only set speed when necessary to avoid NotSupported error */ | |
446 | if (speed != 0) { | |
447 | Error *local_err = NULL; | |
448 | ||
449 | block_job_set_speed(job, speed, &local_err); | |
450 | if (local_err) { | |
4ad35181 | 451 | job_early_fail(&job->job); |
88691b37 PB |
452 | error_propagate(errp, local_err); |
453 | return NULL; | |
454 | } | |
455 | } | |
75859b94 | 456 | |
88691b37 PB |
457 | return job; |
458 | } | |
459 | ||
2caf63a9 PB |
460 | void block_job_iostatus_reset(BlockJob *job) |
461 | { | |
4c241cf5 PB |
462 | if (job->iostatus == BLOCK_DEVICE_IO_STATUS_OK) { |
463 | return; | |
464 | } | |
b15de828 | 465 | assert(job->job.user_paused && job->job.pause_count > 0); |
2caf63a9 PB |
466 | job->iostatus = BLOCK_DEVICE_IO_STATUS_OK; |
467 | } | |
468 | ||
b15de828 KW |
469 | void block_job_user_resume(Job *job) |
470 | { | |
471 | BlockJob *bjob = container_of(job, BlockJob, job); | |
472 | block_job_iostatus_reset(bjob); | |
473 | } | |
474 | ||
81e254dc | 475 | BlockErrorAction block_job_error_action(BlockJob *job, BlockdevOnError on_err, |
32c81a4a PB |
476 | int is_read, int error) |
477 | { | |
478 | BlockErrorAction action; | |
479 | ||
480 | switch (on_err) { | |
481 | case BLOCKDEV_ON_ERROR_ENOSPC: | |
8c398252 | 482 | case BLOCKDEV_ON_ERROR_AUTO: |
a589569f WX |
483 | action = (error == ENOSPC) ? |
484 | BLOCK_ERROR_ACTION_STOP : BLOCK_ERROR_ACTION_REPORT; | |
32c81a4a PB |
485 | break; |
486 | case BLOCKDEV_ON_ERROR_STOP: | |
a589569f | 487 | action = BLOCK_ERROR_ACTION_STOP; |
32c81a4a PB |
488 | break; |
489 | case BLOCKDEV_ON_ERROR_REPORT: | |
a589569f | 490 | action = BLOCK_ERROR_ACTION_REPORT; |
32c81a4a PB |
491 | break; |
492 | case BLOCKDEV_ON_ERROR_IGNORE: | |
a589569f | 493 | action = BLOCK_ERROR_ACTION_IGNORE; |
32c81a4a PB |
494 | break; |
495 | default: | |
496 | abort(); | |
497 | } | |
559b935f | 498 | if (!block_job_is_internal(job)) { |
33e9e9bd | 499 | qapi_event_send_block_job_error(job->job.id, |
559b935f JS |
500 | is_read ? IO_OPERATION_TYPE_READ : |
501 | IO_OPERATION_TYPE_WRITE, | |
3ab72385 | 502 | action); |
559b935f | 503 | } |
a589569f | 504 | if (action == BLOCK_ERROR_ACTION_STOP) { |
8d9648cb VSO |
505 | if (!job->job.user_paused) { |
506 | job_pause(&job->job); | |
507 | /* make the pause user visible, which will be resumed from QMP. */ | |
508 | job->job.user_paused = true; | |
509 | } | |
32c81a4a | 510 | block_job_iostatus_set_err(job, error); |
32c81a4a PB |
511 | } |
512 | return action; | |
513 | } |