--- blockdev.c | 18 ++++++++++++++++++ qapi-schema.json | 18 ++++++++++++++++++ qmp-commands.hx | 23 +++++++++++++++++++++++ 3 files changed, 59 insertions(+)
diff --git a/blockdev.c b/blockdev.c index d724e2d..4c5f954 100644 --- a/blockdev.c +++ b/blockdev.c @@ -896,6 +896,24 @@ void qmp_block_passwd(const char *device, const char *password, Error **errp) } } +void qmp_block_pause_dedup(const char *device, Error **errp) +{ + BlockDriverState *bs; + int err; + + bs = bdrv_find(device); + if (!bs) { + error_set(errp, QERR_DEVICE_NOT_FOUND, device); + return; + } + + err = bdrv_pause_dedup(bs); + if (err == -EINVAL) { + error_set(errp, QERR_DEVICE_NOT_DEDUPLICATED, bdrv_get_device_name(bs)); + return; + } +} + static void qmp_bdrv_open_encrypted(BlockDriverState *bs, const char *filename, int bdrv_flags, BlockDriver *drv, const char *password, Error **errp) diff --git a/qapi-schema.json b/qapi-schema.json index 1a5014c..d8c8348 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -720,6 +720,24 @@ { 'command': 'query-block', 'returns': ['BlockInfo'] } ## +# @block-pause-dedup: +# +# This command pause the deduplication on a device that support it. +# +# @device: the name of the device to pause the deduplication on +# +# Returns: nothing on success +# If @device is not a valid block device, DeviceNotFound +# If @device is not deduplicated, DeviceNotDeduplicated +# +# Notes: Not all block formats support deduplication one must use +# query-blockstats before and look at the optional deduplication field. +# +# Since: 1.5 +## +{ 'command': 'block-pause-dedup', 'data': {'device': 'str' } } + +## # @BlockDeviceDedupInfo # # Statistics of the deduplication on a virtual block device implementing it diff --git a/qmp-commands.hx b/qmp-commands.hx index 5c692d0..acc9fd0 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1236,6 +1236,29 @@ Example: EQMP { + .name = "block-pause-dedup", + .args_type = "device:B", + .mhandler.cmd_new = qmp_marshal_input_block_pause_dedup, + }, + +SQMP +block-pause-dedup +------------ + +Pause the deduplication on a device that support it. + +Arguments: + +- "device": device name (json-string) + +Example: + +-> { "execute": "block-pause-dedup", "arguments": { "device": "ide0-hd0" } } +<- { "return": {} } + +EQMP + + { .name = "block_set_io_throttle", .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", .mhandler.cmd_new = qmp_marshal_input_block_set_io_throttle, -- 1.7.10.4