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block: Add node-name argument to drive-mirror

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This new argument can be used to specify the node-name of the new mirrored BDS.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Benoît Canet 2014-06-16 12:00:55 +02:00 • committed by Kevin Wolf
parent cf29a570a7
commit 4c828dc61a
4 changed files with 17 additions and 2 deletions
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11
blockdev.c
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@ -2099,6 +2099,7 @@ BlockDeviceInfoList *qmp_query_named_block_nodes(Error **errp)
void qmp_drive_mirror(const char *device, const char *target,
bool has_format, const char *format,
bool has_node_name, const char *node_name,
enum MirrorSyncMode sync,
bool has_mode, enum NewImageMode mode,
bool has_speed, int64_t speed,
@ -2112,6 +2113,7 @@ void qmp_drive_mirror(const char *device, const char *target,
BlockDriverState *source, *target_bs;
BlockDriver *drv = NULL;
Error *local_err = NULL;
QDict *options = NULL;
int flags;
int64_t size;
int ret;
@ -2213,12 +2215,17 @@ void qmp_drive_mirror(const char *device, const char *target,
return;
}
if (has_node_name) {
options = qdict_new();
qdict_put(options, "node-name", qstring_from_str(node_name));
}
/* Mirroring takes care of copy-on-write using the source's backing
* file.
*/
target_bs = NULL;
ret = bdrv_open(&target_bs, target, NULL, NULL, flags | BDRV_O_NO_BACKING,
drv, &local_err);
ret = bdrv_open(&target_bs, target, NULL, options,
flags | BDRV_O_NO_BACKING, drv, &local_err);
if (ret < 0) {
error_propagate(errp, local_err);
return;