[Qemu-devel] [PATCH v4 03/13] block-backend: Add blk_op_blocker_add_notifier

[Fam Zheng <famz@redhat.com>]

Forward the call to bdrv_op_blocker_add_notifier.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
---
 block/block-backend.c          | 6 ++++++
 include/sysemu/block-backend.h | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/block/block-backend.c b/block/block-backend.c
index 93e46f3..16efe60 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -802,6 +802,12 @@ void blk_op_unblock_all(BlockBackend *blk, Error *reason)
     bdrv_op_unblock_all(blk->bs, reason);
 }
 
+void blk_op_blocker_add_notifier(BlockBackend *blk,
+                                 Notifier *notifier)
+{
+    bdrv_op_blocker_add_notifier(blk->bs, notifier);
+}
+
 AioContext *blk_get_aio_context(BlockBackend *blk)
 {
     return bdrv_get_aio_context(blk->bs);
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index b4a4d5e..cde9651 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -136,6 +136,8 @@ int blk_get_flags(BlockBackend *blk);
 int blk_get_max_transfer_length(BlockBackend *blk);
 void blk_set_guest_block_size(BlockBackend *blk, int align);
 void *blk_blockalign(BlockBackend *blk, size_t size);
+void blk_op_blocker_add_notifier(BlockBackend *blk,
+                                 Notifier *notifier);
 bool blk_op_is_blocked(BlockBackend *blk, BlockOpType op, Error **errp);
 void blk_op_unblock(BlockBackend *blk, BlockOpType op, Error *reason);
 void blk_op_block_all(BlockBackend *blk, Error *reason);
-- 
2.4.1