qmp: add block-job-pause and block-job-resume
Add QMP commands matching the functionality.
Paused jobs cannot be canceled without first resuming them. This
ensures that I/O errors are never missed by management. However, an
optional force argument can be specified to allow that.
Signed-off-by: Paolo Bonzini <[email protected]>
Reviewed-by: Eric Blake <[email protected]>
Signed-off-by: Kevin Wolf <[email protected]>
diff --git a/hmp-commands.hx b/hmp-commands.hx
index ed67e99..27d90a2 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -99,9 +99,10 @@
{
.name = "block_job_cancel",
- .args_type = "device:B",
- .params = "device",
- .help = "stop an active background block operation",
+ .args_type = "force:-f,device:B",
+ .params = "[-f] device",
+ .help = "stop an active background block operation (use -f"
+ "\n\t\t\t if the operation is currently paused)",
.mhandler.cmd = hmp_block_job_cancel,
},
@@ -112,6 +113,34 @@
ETEXI
{
+ .name = "block_job_pause",
+ .args_type = "device:B",
+ .params = "device",
+ .help = "pause an active background block operation",
+ .mhandler.cmd = hmp_block_job_pause,
+ },
+
+STEXI
+@item block_job_pause
+@findex block_job_pause
+Pause an active block streaming operation.
+ETEXI
+
+ {
+ .name = "block_job_resume",
+ .args_type = "device:B",
+ .params = "device",
+ .help = "resume a paused background block operation",
+ .mhandler.cmd = hmp_block_job_resume,
+ },
+
+STEXI
+@item block_job_resume
+@findex block_job_resume
+Resume a paused block streaming operation.
+ETEXI
+
+ {
.name = "eject",
.args_type = "force:-f,device:B",
.params = "[-f] device",
