2 * Block layer code related to image options amend
4 * Copyright (c) 2018 Kevin Wolf <kwolf@redhat.com>
5 * Copyright (c) 2020 Red Hat. Inc
7 * Heavily based on create.c
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "qemu/osdep.h"
29 #include "block/block_int.h"
31 #include "qemu/main-loop.h"
32 #include "qapi/qapi-commands-block-core.h"
33 #include "qapi/qapi-visit-block-core.h"
34 #include "qapi/clone-visitor.h"
35 #include "qapi/error.h"
37 typedef struct BlockdevAmendJob
{
39 BlockdevAmendOptions
*opts
;
44 static int coroutine_fn
blockdev_amend_run(Job
*job
, Error
**errp
)
46 BlockdevAmendJob
*s
= container_of(job
, BlockdevAmendJob
, common
);
49 job_progress_set_remaining(&s
->common
, 1);
50 ret
= s
->bs
->drv
->bdrv_co_amend(s
->bs
, s
->opts
, s
->force
, errp
);
51 job_progress_update(&s
->common
, 1);
52 qapi_free_BlockdevAmendOptions(s
->opts
);
56 static const JobDriver blockdev_amend_job_driver
= {
57 .instance_size
= sizeof(BlockdevAmendJob
),
58 .job_type
= JOB_TYPE_AMEND
,
59 .run
= blockdev_amend_run
,
62 void qmp_x_blockdev_amend(const char *job_id
,
63 const char *node_name
,
64 BlockdevAmendOptions
*options
,
70 const char *fmt
= BlockdevDriver_str(options
->driver
);
71 BlockDriver
*drv
= bdrv_find_format(fmt
);
72 BlockDriverState
*bs
= bdrv_find_node(node_name
);
76 error_setg(errp
, "Block driver '%s' not found or not supported", fmt
);
81 * If the driver is in the schema, we know that it exists. But it may not
84 if (bdrv_uses_whitelist() && !bdrv_is_whitelisted(drv
, false)) {
85 error_setg(errp
, "Driver is not whitelisted");
91 "x-blockdev-amend doesn't support changing the block driver");
95 /* Error out if the driver doesn't support .bdrv_co_amend */
96 if (!drv
->bdrv_co_amend
) {
97 error_setg(errp
, "Driver does not support x-blockdev-amend");
101 /* Create the block job */
102 s
= job_create(job_id
, &blockdev_amend_job_driver
, NULL
,
103 bdrv_get_aio_context(bs
), JOB_DEFAULT
| JOB_MANUAL_DISMISS
,
110 s
->opts
= QAPI_CLONE(BlockdevAmendOptions
, options
),
111 s
->force
= has_force
? force
: false;
112 job_start(&s
->common
);