block: add 'speed' optional parameter to block-stream
Allow streaming operations to be started with an initial speed limit.
This eliminates the window of time between starting streaming and
issuing block-job-set-speed. Users should use the new optional 'speed'
parameter instead so that speed limits are in effect immediately when
the job starts.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 8a929f0..18cb415 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -71,8 +71,8 @@
{
.name = "block_stream",
- .args_type = "device:B,base:s?",
- .params = "device [base]",
+ .args_type = "device:B,speed:o?,base:s?",
+ .params = "device [speed [base]]",
.help = "copy data from a backing file into a block device",
.mhandler.cmd = hmp_block_stream,
},