1 files changed, 15 insertions, 9 deletions
diff --git a/include/block/block.h b/include/block/block.h
index a8c15e36e7..70ea29947c 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -17,7 +17,6 @@ typedef struct BlockJob BlockJob;
 typedef struct BdrvChild BdrvChild;
 typedef struct BdrvChildRole BdrvChildRole;
 typedef struct BlockJobTxn BlockJobTxn;
-typedef struct BdrvNextIterator BdrvNextIterator;
 
 typedef struct BlockDriverInfo {
     /* in bytes, 0 if irrelevant */
@@ -198,7 +197,6 @@ BlockDriver *bdrv_find_format(const char *format_name);
 int bdrv_create(BlockDriver *drv, const char* filename,
                 QemuOpts *opts, Error **errp);
 int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp);
-BlockDriverState *bdrv_new_root(void);
 BlockDriverState *bdrv_new(void);
 void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top);
 void bdrv_replace_in_backing_chain(BlockDriverState *old,
@@ -214,8 +212,8 @@ BdrvChild *bdrv_open_child(const char *filename,
 void bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd);
 int bdrv_open_backing_file(BlockDriverState *bs, QDict *parent_options,
                            const char *bdref_key, Error **errp);
-int bdrv_open(BlockDriverState **pbs, const char *filename,
-              const char *reference, QDict *options, int flags, Error **errp);
+BlockDriverState *bdrv_open(const char *filename, const char *reference,
+                            QDict *options, int flags, Error **errp);
 BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
                                     BlockDriverState *bs,
                                     QDict *options, int flags);
@@ -244,10 +242,6 @@ int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
     const void *buf, int count);
 int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
     int nb_sectors, QEMUIOVector *qiov);
-int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
-    int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
-int coroutine_fn bdrv_co_readv_no_serialising(BlockDriverState *bs,
-    int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
 int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
     int nb_sectors, QEMUIOVector *qiov);
 /*
@@ -402,7 +396,19 @@ BlockDriverState *bdrv_lookup_bs(const char *device,
                                  Error **errp);
 bool bdrv_chain_contains(BlockDriverState *top, BlockDriverState *base);
 BlockDriverState *bdrv_next_node(BlockDriverState *bs);
-BdrvNextIterator *bdrv_next(BdrvNextIterator *it, BlockDriverState **bs);
+
+typedef struct BdrvNextIterator {
+    enum {
+        BDRV_NEXT_BACKEND_ROOTS,
+        BDRV_NEXT_MONITOR_OWNED,
+    } phase;
+    BlockBackend *blk;
+    BlockDriverState *bs;
+} BdrvNextIterator;
+
+BlockDriverState *bdrv_first(BdrvNextIterator *it);
+BlockDriverState *bdrv_next(BdrvNextIterator *it);
+
 BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs);
 int bdrv_is_encrypted(BlockDriverState *bs);
 int bdrv_key_required(BlockDriverState *bs);