[Qemu-devel] [PATCH 7/8] block: add two helpers

[Liu Yuan <namei.unix@gmail.com>]

These helpers are needed by later quorum sync device logic.

Cc: Eric Blake <eblake@redhat.com>
Cc: Benoit Canet <benoit@irqsave.net>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Liu Yuan <namei.unix@gmail.com>
---
 block.c               | 10 ++++++++++
 include/block/block.h |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/block.c b/block.c
index 22eb3e4..2e2f1d9 100644
--- a/block.c
+++ b/block.c
@@ -2145,6 +2145,16 @@ void *bdrv_get_attached_dev(BlockDriverState *bs)
     return bs->dev;
 }
 
+BlockDriverState *bdrv_get_file(BlockDriverState *bs)
+{
+    return bs->file;
+}
+
+const char *bdrv_get_filename(BlockDriverState *bs)
+{
+    return bs->filename;
+}
+
 void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
                       void *opaque)
 {
diff --git a/include/block/block.h b/include/block/block.h
index a61eaf0..1e116cc 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -237,6 +237,8 @@ int bdrv_attach_dev(BlockDriverState *bs, void *dev);
 void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev);
 void bdrv_detach_dev(BlockDriverState *bs, void *dev);
 void *bdrv_get_attached_dev(BlockDriverState *bs);
+BlockDriverState *bdrv_get_file(BlockDriverState *bs);
+const char *bdrv_get_filename(BlockDriverState *bs);
 void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
                       void *opaque);
 void bdrv_set_drv_ops(BlockDriverState *bs, const BlockDrvOps *ops,
-- 
1.9.1