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qcow2: Fix open/create to open images with no_co_wrapper

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.bdrv_co_create implementations run in a coroutine, as does
qcow2_do_open(). Therefore they are not allowed to open images directly.
Fix the calls to use the corresponding no_co_wrappers instead.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230126172432.436111-7-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-01-26 18:24:25 +01:00
parent 5b9d79b62d
commit ecbc57caba
1 changed files with 22 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

21
block/qcow2.c
View file

@ -1617,7 +1617,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
if (open_data_file) { if (open_data_file) {
/* Open external data file */ /* Open external data file */
s->data_file = bdrv_open_child(NULL, options, "data-file", bs, s->data_file = bdrv_co_open_child(NULL, options, "data-file", bs,
&child_of_bds, BDRV_CHILD_DATA, &child_of_bds, BDRV_CHILD_DATA,
true, errp); true, errp);
if (*errp) { if (*errp) {
@ -1627,8 +1627,9 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
if (s->incompatible_features & QCOW2_INCOMPAT_DATA_FILE) { if (s->incompatible_features & QCOW2_INCOMPAT_DATA_FILE) {
if (!s->data_file && s->image_data_file) { if (!s->data_file && s->image_data_file) {
s->data_file = bdrv_open_child(s->image_data_file, options, s->data_file = bdrv_co_open_child(s->image_data_file, options,
"data-file", bs, &child_of_bds, "data-file", bs,
&child_of_bds,
BDRV_CHILD_DATA, false, errp); BDRV_CHILD_DATA, false, errp);
if (!s->data_file) { if (!s->data_file) {
ret = -EINVAL; ret = -EINVAL;
@ -3454,7 +3455,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
assert(create_options->driver == BLOCKDEV_DRIVER_QCOW2); assert(create_options->driver == BLOCKDEV_DRIVER_QCOW2);
qcow2_opts = &create_options->u.qcow2; qcow2_opts = &create_options->u.qcow2;
bs = bdrv_open_blockdev_ref(qcow2_opts->file, errp); bs = bdrv_co_open_blockdev_ref(qcow2_opts->file, errp);
if (bs == NULL) { if (bs == NULL) {
return -EIO; return -EIO;
} }
@ -3596,7 +3597,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
ret = -EINVAL; ret = -EINVAL;
goto out; goto out;
} }
data_bs = bdrv_open_blockdev_ref(qcow2_opts->data_file, errp); data_bs = bdrv_co_open_blockdev_ref(qcow2_opts->data_file, errp);
if (data_bs == NULL) { if (data_bs == NULL) {
ret = -EIO; ret = -EIO;
goto out; goto out;
@ -3629,7 +3630,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
} }
/* Create BlockBackend to write to the image */ /* Create BlockBackend to write to the image */
blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL, blk = blk_co_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL,
errp); errp);
if (!blk) { if (!blk) {
ret = -EPERM; ret = -EPERM;
@ -3712,7 +3713,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
if (data_bs) { if (data_bs) {
qdict_put_str(options, "data-file", data_bs->node_name); qdict_put_str(options, "data-file", data_bs->node_name);
} }
blk = blk_new_open(NULL, NULL, options, blk = blk_co_new_open(NULL, NULL, options,
BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_NO_FLUSH, BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_NO_FLUSH,
errp); errp);
if (blk == NULL) { if (blk == NULL) {
@ -3793,7 +3794,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
if (data_bs) { if (data_bs) {
qdict_put_str(options, "data-file", data_bs->node_name); qdict_put_str(options, "data-file", data_bs->node_name);
} }
blk = blk_new_open(NULL, NULL, options, blk = blk_co_new_open(NULL, NULL, options,
BDRV_O_RDWR | BDRV_O_NO_BACKING | BDRV_O_NO_IO, BDRV_O_RDWR | BDRV_O_NO_BACKING | BDRV_O_NO_IO,
errp); errp);
if (blk == NULL) { if (blk == NULL) {
@ -3877,7 +3878,7 @@ static int coroutine_fn qcow2_co_create_opts(BlockDriver *drv,
goto finish; goto finish;
} }
bs = bdrv_open(filename, NULL, NULL, bs = bdrv_co_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_PROTOCOL, errp); BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_PROTOCOL, errp);
if (bs == NULL) { if (bs == NULL) {
ret = -EIO; ret = -EIO;
@ -3892,7 +3893,7 @@ static int coroutine_fn qcow2_co_create_opts(BlockDriver *drv,
goto finish; goto finish;
} }
data_bs = bdrv_open(val, NULL, NULL, data_bs = bdrv_co_open(val, NULL, NULL,
BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_PROTOCOL, BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_PROTOCOL,
errp); errp);
if (data_bs == NULL) { if (data_bs == NULL) {