Snapshot ID can't be specified in this interface. Signed-off-by: Wenchao Xia <xiaw...@linux.vnet.ibm.com> --- blockdev.c | 13 +++++++++++++ qapi-schema.json | 22 ++++++++++++++++++++++ qmp-commands.hx | 30 ++++++++++++++++++++++++++++++ 3 files changed, 65 insertions(+), 0 deletions(-)
diff --git a/blockdev.c b/blockdev.c index 2fda33b..d2cca6c 100644 --- a/blockdev.c +++ b/blockdev.c @@ -777,6 +777,19 @@ void qmp_blockdev_snapshot_sync(const char *device, const char *snapshot_file, &snapshot, errp); } +void qmp_blockdev_snapshot_internal_sync(const char *device, + const char *name, + Error **errp) +{ + BlockdevSnapshotInternal snapshot = { + .device = (char *) device, + .name = (char *) name + }; + + blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC, + &snapshot, errp); +} + /* New and old BlockDriverState structs for group snapshots */ diff --git a/qapi-schema.json b/qapi-schema.json index a2d27c8..40f9c8e 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -1746,6 +1746,28 @@ '*mode': 'NewImageMode'} } ## +# @blockdev-snapshot-internal-sync +# +# Synchronously take an internal snapshot of a block device, when the format +# of the image used supports it. +# +# @device: the name of the device to generate the snapshot from +# +# @name: the name of new snapshot name +# +# Returns: nothing on success +# If @device is not a valid block device, DeviceNotFound +# If any snapshot matching @name exists, or the name string is invalid +# which may collide with snapshot IDs, or name is empty, GenericError +# If the format of the image used does not support it, +# BlockFormatFeatureNotSupported +# +# Since 1.6 +## +{ 'command': 'blockdev-snapshot-internal-sync', + 'data': { 'device': 'str', 'name': 'str'} } + +## # @human-monitor-command: # # Execute a command on the human monitor and return the output. diff --git a/qmp-commands.hx b/qmp-commands.hx index d154506..a2675cf 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1092,6 +1092,36 @@ Example: EQMP { + .name = "blockdev-snapshot-internal-sync", + .args_type = "device:B,name:s", + .mhandler.cmd_new = qmp_marshal_input_blockdev_snapshot_internal_sync, + }, + +SQMP +blockdev-snapshot-internal-sync +------------------------------- + +Synchronously take an internal snapshot of a block device when the format of +image used supports it. If the name is a numeric string which may collide with +snapshot IDs, such as "19", or an empty string, the operation will fail. If a +snapshot with name already exists, the operation will fail. + +Arguments: + +- "device": device name to snapshot (json-string) +- "name": name of the new snapshot (json-string) + +Example: + +-> { "execute": "blockdev-snapshot-internal-sync", + "arguments": { "device": "ide-hd0", + "name": "snapshot0" } + } +<- { "return": {} } + +EQMP + + { .name = "drive-mirror", .args_type = "sync:s,device:B,target:s,speed:i?,mode:s?,format:s?," "on-source-error:s?,on-target-error:s?," -- 1.7.1