block/backup: drop unused synchronization interface

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 0 insertions, 13 deletions

diff --git a/include/block/block_backup.h b/include/block/block_backup.h
index 994a3bd2ec..157596c296 100644
--- a/include/block/block_backup.h
+++ b/include/block/block_backup.h
@@ -20,19 +20,6 @@
 
 #include "block/block_int.h"
 
-typedef struct CowRequest {
-    int64_t start_byte;
-    int64_t end_byte;
-    QLIST_ENTRY(CowRequest) list;
-    CoQueue wait_queue; /* coroutines blocked on this request */
-} CowRequest;
-
-void backup_wait_for_overlapping_requests(BlockJob *job, int64_t offset,
-                                          uint64_t bytes);
-void backup_cow_request_begin(CowRequest *req, BlockJob *job,
-                              int64_t offset, uint64_t bytes);
-void backup_cow_request_end(CowRequest *req);
-
 void backup_do_checkpoint(BlockJob *job, Error **errp);
 
 #endif