@@ -796,6 +796,13 @@ static int bdrv_assign_node_name(BlockDriverState *bs,
return -EINVAL;
}
+ /* takes care of avoiding namespaces collisions */
+ if (bdrv_find(node_name)) {
+ error_setg(errp, "node-name=%s is conflicting with a device id",
+ node_name);
+ return -EINVAL;
+ }
+
/* takes care of avoiding duplicates node names */
if (bdrv_find_node(node_name)) {
error_setg(errp, "Duplicate node name");
@@ -1193,9 +1200,8 @@ int bdrv_open(BlockDriverState **pbs, const char *filename,
return -EINVAL;
}
- bs = bdrv_find(reference);
+ bs = bdrv_lookup_bs(reference, reference, errp);
if (!bs) {
- error_setg(errp, "Cannot find block device '%s'", reference);
return -ENODEV;
}
bdrv_ref(bs);
@@ -463,6 +463,12 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
}
}
+ if (bdrv_find_node(qemu_opts_id(opts))) {
+ error_setg(errp, "device id=%s is conflicting with a node-name",
+ qemu_opts_id(opts));
+ goto early_err;
+ }
+
/* init */
dinfo = g_malloc0(sizeof(*dinfo));
dinfo->id = g_strdup(qemu_opts_id(opts));
Since we introduced node_name for named bs of the graph modify the opening by reference to use it as a fallback. This patch also enforce the separation of the device id and graph node namespaces. Signed-off-by: Benoit Canet <benoit@irqsave.net> --- block.c | 10 ++++++++-- blockdev.c | 6 ++++++ 2 files changed, 14 insertions(+), 2 deletions(-)