aboutsummaryrefslogtreecommitdiff
path: root/include/block
diff options
context:
space:
mode:
Diffstat (limited to 'include/block')
-rw-r--r--include/block/block.h4
-rw-r--r--include/block/block_int.h4
2 files changed, 6 insertions, 2 deletions
diff --git a/include/block/block.h b/include/block/block.h
index 7e92f549fb..baecc26dfc 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -285,7 +285,8 @@ int bdrv_change_backing_file(BlockDriverState *bs,
const char *backing_file, const char *backing_fmt);
void bdrv_register(BlockDriver *bdrv);
int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top,
- BlockDriverState *base);
+ BlockDriverState *base,
+ const char *backing_file_str);
BlockDriverState *bdrv_find_overlay(BlockDriverState *active,
BlockDriverState *bs);
BlockDriverState *bdrv_find_base(BlockDriverState *bs);
@@ -403,6 +404,7 @@ BlockDeviceInfoList *bdrv_named_nodes_list(void);
BlockDriverState *bdrv_lookup_bs(const char *device,
const char *node_name,
Error **errp);
+bool bdrv_chain_contains(BlockDriverState *top, BlockDriverState *base);
BlockDriverState *bdrv_next(BlockDriverState *bs);
void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
void *opaque);
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 53e77cf11e..8f8e65e763 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -54,6 +54,7 @@
#define BLOCK_OPT_LAZY_REFCOUNTS "lazy_refcounts"
#define BLOCK_OPT_ADAPTER_TYPE "adapter_type"
#define BLOCK_OPT_REDUNDANCY "redundancy"
+#define BLOCK_OPT_NOCOW "nocow"
typedef struct BdrvTrackedRequest {
BlockDriverState *bs;
@@ -462,13 +463,14 @@ void stream_start(BlockDriverState *bs, BlockDriverState *base,
* @on_error: The action to take upon error.
* @cb: Completion function for the job.
* @opaque: Opaque pointer value passed to @cb.
+ * @backing_file_str: String to use as the backing file in @top's overlay
* @errp: Error object.
*
*/
void commit_start(BlockDriverState *bs, BlockDriverState *base,
BlockDriverState *top, int64_t speed,
BlockdevOnError on_error, BlockDriverCompletionFunc *cb,
- void *opaque, Error **errp);
+ void *opaque, const char *backing_file_str, Error **errp);
/**
* commit_active_start:
* @bs: Active block device to be committed.