diff options
| -rw-r--r-- | block.c | 24 | ||||
| -rw-r--r-- | include/block/block_int.h | 1 |
2 files changed, 25 insertions, 0 deletions
@@ -1429,6 +1429,30 @@ static void bdrv_child_cb_detach(BdrvChild *child) bdrv_unapply_subtree_drain(child, bs); } +static int bdrv_child_cb_update_filename(BdrvChild *c, BlockDriverState *base, + const char *filename, Error **errp) +{ + if (c->role & BDRV_CHILD_COW) { + return bdrv_backing_update_filename(c, base, filename, errp); + } + return 0; +} + +const BdrvChildClass child_of_bds = { + .parent_is_bds = true, + .get_parent_desc = bdrv_child_get_parent_desc, + .inherit_options = bdrv_inherited_options, + .drained_begin = bdrv_child_cb_drained_begin, + .drained_poll = bdrv_child_cb_drained_poll, + .drained_end = bdrv_child_cb_drained_end, + .attach = bdrv_child_cb_attach, + .detach = bdrv_child_cb_detach, + .inactivate = bdrv_child_cb_inactivate, + .can_set_aio_ctx = bdrv_child_cb_can_set_aio_ctx, + .set_aio_ctx = bdrv_child_cb_set_aio_ctx, + .update_filename = bdrv_child_cb_update_filename, +}; + static int bdrv_open_flags(BlockDriverState *bs, int flags) { int open_flags = flags; diff --git a/include/block/block_int.h b/include/block/block_int.h index 6245d8a..54df821 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -740,6 +740,7 @@ struct BdrvChildClass { void (*set_aio_ctx)(BdrvChild *child, AioContext *ctx, GSList **ignore); }; +extern const BdrvChildClass child_of_bds; extern const BdrvChildClass child_file; extern const BdrvChildClass child_format; extern const BdrvChildClass child_backing; |