diff mbox

[V5,6/8] hmp: add interface hmp_snapshot_blkdev_internal

Message ID 1373521624-4380-7-git-send-email-xiawenc@linux.vnet.ibm.com
State New
Headers show

Commit Message

Wayne Xia July 11, 2013, 5:47 a.m. UTC 
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
---
 hmp-commands.hx |   19 +++++++++++++++++--
 hmp.c           |   10 ++++++++++
 hmp.h           |    1 +
 3 files changed, 28 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/hmp-commands.hx b/hmp-commands.hx
index d1cdcfb..ec613e8 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1023,8 +1023,7 @@  ETEXI
                       "of device. If a new image file is specified, the\n\t\t\t"
                       "new image file will become the new root image.\n\t\t\t"
                       "If format is specified, the snapshot file will\n\t\t\t"
-                      "be created in that format. Otherwise the\n\t\t\t"
-                      "snapshot will be internal! (currently unsupported).\n\t\t\t"
+                      "be created in that format.\n\t\t\t"
                       "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
                       "to reuse the image found in new-image-file, instead of\n\t\t\t"
                       "recreating it from scratch.",
@@ -1038,6 +1037,22 @@  Snapshot device, using snapshot file as target if provided
 ETEXI
 
     {
+        .name       = "snapshot_blkdev_internal",
+        .args_type  = "device:B,name:s",
+        .params     = "device name",
+        .help       = "take an internal snapshot of device.\n\t\t\t"
+                      "The format of the image used by device must\n\t\t\t"
+                      "support it, such as qcow2.\n\t\t\t",
+        .mhandler.cmd = hmp_snapshot_blkdev_internal,
+    },
+
+STEXI
+@item snapshot_blkdev_internal
+@findex snapshot_blkdev_internal
+Take an internal snapshot on device if it support
+ETEXI
+
+    {
         .name       = "drive_mirror",
         .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
         .params     = "[-n] [-f] device target [format]",
diff --git a/hmp.c b/hmp.c
index 2daed43..d300366 100644
--- a/hmp.c
+++ b/hmp.c
@@ -930,6 +930,16 @@  void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict)
     hmp_handle_error(mon, &errp);
 }
 
+void hmp_snapshot_blkdev_internal(Monitor *mon, const QDict *qdict)
+{
+    const char *device = qdict_get_str(qdict, "device");
+    const char *name = qdict_get_str(qdict, "name");
+    Error *errp = NULL;
+
+    qmp_blockdev_snapshot_internal_sync(device, name, &errp);
+    hmp_handle_error(mon, &errp);
+}
+
 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict)
 {
     qmp_migrate_cancel(NULL);
diff --git a/hmp.h b/hmp.h
index 56d2e92..fddf3a9 100644
--- a/hmp.h
+++ b/hmp.h
@@ -54,6 +54,7 @@  void hmp_block_passwd(Monitor *mon, const QDict *qdict);
 void hmp_balloon(Monitor *mon, const QDict *qdict);
 void hmp_block_resize(Monitor *mon, const QDict *qdict);
 void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict);
+void hmp_snapshot_blkdev_internal(Monitor *mon, const QDict *qdict);
 void hmp_drive_mirror(Monitor *mon, const QDict *qdict);
 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict);
 void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict);