1 files changed, 38 insertions, 0 deletions
diff --git a/block/block-backend.c b/block/block-backend.c
index d0692b18e9..ef16d7356a 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -497,6 +497,16 @@ BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long int req, void *buf,
     return bdrv_aio_ioctl(blk->bs, req, buf, cb, opaque);
 }
 
+int blk_co_discard(BlockBackend *blk, int64_t sector_num, int nb_sectors)
+{
+    return bdrv_co_discard(blk->bs, sector_num, nb_sectors);
+}
+
+int blk_co_flush(BlockBackend *blk)
+{
+    return bdrv_co_flush(blk->bs);
+}
+
 int blk_flush(BlockBackend *blk)
 {
     return bdrv_flush(blk->bs);
@@ -549,6 +559,11 @@ void blk_set_enable_write_cache(BlockBackend *blk, bool wce)
     bdrv_set_enable_write_cache(blk->bs, wce);
 }
 
+void blk_invalidate_cache(BlockBackend *blk, Error **errp)
+{
+    bdrv_invalidate_cache(blk->bs, errp);
+}
+
 int blk_is_inserted(BlockBackend *blk)
 {
     return bdrv_is_inserted(blk->bs);
@@ -609,6 +624,29 @@ void blk_set_aio_context(BlockBackend *blk, AioContext *new_context)
     bdrv_set_aio_context(blk->bs, new_context);
 }
 
+void blk_add_aio_context_notifier(BlockBackend *blk,
+        void (*attached_aio_context)(AioContext *new_context, void *opaque),
+        void (*detach_aio_context)(void *opaque), void *opaque)
+{
+    bdrv_add_aio_context_notifier(blk->bs, attached_aio_context,
+                                  detach_aio_context, opaque);
+}
+
+void blk_remove_aio_context_notifier(BlockBackend *blk,
+                                     void (*attached_aio_context)(AioContext *,
+                                                                  void *),
+                                     void (*detach_aio_context)(void *),
+                                     void *opaque)
+{
+    bdrv_remove_aio_context_notifier(blk->bs, attached_aio_context,
+                                     detach_aio_context, opaque);
+}
+
+void blk_add_close_notifier(BlockBackend *blk, Notifier *notify)
+{
+    bdrv_add_close_notifier(blk->bs, notify);
+}
+
 void blk_io_plug(BlockBackend *blk)
 {
     bdrv_io_plug(blk->bs);