diff options
| author | Benoît Canet <benoit@irqsave.net> | 2014-01-23 21:31:37 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-01-24 16:07:08 +0100 |
| commit | 3b1dbd11a60d75e99af5fc9b73c34f4af9d4f510 (patch) | |
| tree | a8758efe34e6caaa3dc29cd38cec46e45418c20c | |
| parent | 212a5a8f095de9a1624de6b4a589d60688b02747 (diff) | |
| download | qemu-3b1dbd11a60d75e99af5fc9b73c34f4af9d4f510.tar.gz | |
qmp: Allow block_resize to manipulate bs graph nodes.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| -rw-r--r-- | blockdev.c | 18 | ||||
| -rw-r--r-- | hmp.c | 2 | ||||
| -rw-r--r-- | qapi-schema.json | 10 | ||||
| -rw-r--r-- | qmp-commands.hx | 3 |
4 files changed, 25 insertions, 8 deletions
diff --git a/blockdev.c b/blockdev.c index 32a356eadc..d192370f9c 100644 --- a/blockdev.c +++ b/blockdev.c @@ -1683,14 +1683,24 @@ int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data) return 0; } -void qmp_block_resize(const char *device, int64_t size, Error **errp) +void qmp_block_resize(bool has_device, const char *device, + bool has_node_name, const char *node_name, + int64_t size, Error **errp) { + Error *local_err = NULL; BlockDriverState *bs; int ret; - bs = bdrv_find(device); - if (!bs) { - error_set(errp, QERR_DEVICE_NOT_FOUND, device); + bs = bdrv_lookup_bs(has_device ? device : NULL, + has_node_name ? node_name : NULL, + &local_err); + if (error_is_set(&local_err)) { + error_propagate(errp, local_err); + return; + } + + if (!bdrv_is_first_non_filter(bs)) { + error_set(errp, QERR_FEATURE_DISABLED, "resize"); return; } @@ -893,7 +893,7 @@ void hmp_block_resize(Monitor *mon, const QDict *qdict) int64_t size = qdict_get_int(qdict, "size"); Error *errp = NULL; - qmp_block_resize(device, size, &errp); + qmp_block_resize(true, device, false, NULL, size, &errp); hmp_handle_error(mon, &errp); } diff --git a/qapi-schema.json b/qapi-schema.json index 3f48ae9be4..f21243aba1 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -1724,7 +1724,11 @@ # # Resize a block image while a guest is running. # -# @device: the name of the device to get the image resized +# Either @device or @node-name must be set but not both. +# +# @device: #optional the name of the device to get the image resized +# +# @node-name: #optional graph node name to get the image resized (Since 2.0) # # @size: new image size in bytes # @@ -1733,7 +1737,9 @@ # # Since: 0.14.0 ## -{ 'command': 'block_resize', 'data': { 'device': 'str', 'size': 'int' }} +{ 'command': 'block_resize', 'data': { '*device': 'str', + '*node-name': 'str', + 'size': 'int' }} ## # @NewImageMode diff --git a/qmp-commands.hx b/qmp-commands.hx index 5492eb061b..a45f26cc48 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -931,7 +931,7 @@ EQMP { .name = "block_resize", - .args_type = "device:B,size:o", + .args_type = "device:s?,node-name:s?,size:o", .mhandler.cmd_new = qmp_marshal_input_block_resize, }, @@ -944,6 +944,7 @@ Resize a block image while a guest is running. Arguments: - "device": the device's ID, must be unique (json-string) +- "node-name": the node name in the block driver state graph (json-string) - "size": new size Example: |