diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 25 |
1 files changed, 21 insertions, 4 deletions
@@ -1604,16 +1604,26 @@ open_failed: return ret; } -BlockDriverState *bdrv_new_open_driver(BlockDriver *drv, const char *node_name, - int flags, Error **errp) +/* + * Create and open a block node. + * + * @options is a QDict of options to pass to the block drivers, or NULL for an + * empty set of options. The reference to the QDict belongs to the block layer + * after the call (even on failure), so if the caller intends to reuse the + * dictionary, it needs to use qobject_ref() before calling bdrv_open. + */ +BlockDriverState *bdrv_new_open_driver_opts(BlockDriver *drv, + const char *node_name, + QDict *options, int flags, + Error **errp) { BlockDriverState *bs; int ret; bs = bdrv_new(); bs->open_flags = flags; - bs->explicit_options = qdict_new(); - bs->options = qdict_new(); + bs->options = options ?: qdict_new(); + bs->explicit_options = qdict_clone_shallow(bs->options); bs->opaque = NULL; update_options_from_flags(bs->options, flags); @@ -1631,6 +1641,13 @@ BlockDriverState *bdrv_new_open_driver(BlockDriver *drv, const char *node_name, return bs; } +/* Create and open a block node. */ +BlockDriverState *bdrv_new_open_driver(BlockDriver *drv, const char *node_name, + int flags, Error **errp) +{ + return bdrv_new_open_driver_opts(drv, node_name, NULL, flags, errp); +} + QemuOptsList bdrv_runtime_opts = { .name = "bdrv_common", .head = QTAILQ_HEAD_INITIALIZER(bdrv_runtime_opts.head), |