[Qemu-devel] [PATCH v3 1/2] block: Make bdrv_parent_drained_begin/end public

[Fam Zheng]

Signed-off-by: Fam Zheng <f...@redhat.com>
---
 block/io.c            |  4 ++--
 include/block/block.h | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/block/io.c b/block/io.c
index 7321dda..9598646 100644
--- a/block/io.c
+++ b/block/io.c
@@ -44,7 +44,7 @@ static void coroutine_fn bdrv_co_do_rw(void *opaque);
 static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs,
     int64_t offset, int count, BdrvRequestFlags flags);
 
-static void bdrv_parent_drained_begin(BlockDriverState *bs)
+void bdrv_parent_drained_begin(BlockDriverState *bs)
 {
     BdrvChild *c;
 
@@ -55,7 +55,7 @@ static void bdrv_parent_drained_begin(BlockDriverState *bs)
     }
 }
 
-static void bdrv_parent_drained_end(BlockDriverState *bs)
+void bdrv_parent_drained_end(BlockDriverState *bs)
 {
     BdrvChild *c;
 
diff --git a/include/block/block.h b/include/block/block.h
index 3e09222..488a07e 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -573,6 +573,22 @@ void bdrv_io_plug(BlockDriverState *bs);
 void bdrv_io_unplug(BlockDriverState *bs);
 
 /**
+ * bdrv_parent_drained_begin:
+ *
+ * Begin a quiesced section of all users of @bs. This is part of
+ * bdrv_drained_begin.
+ */
+void bdrv_parent_drained_begin(BlockDriverState *bs);
+
+/**
+ * bdrv_parent_drained_end:
+ *
+ * End a quiesced section of all users of @bs. This is part of
+ * bdrv_drained_end.
+ */
+void bdrv_parent_drained_end(BlockDriverState *bs);
+
+/**
  * bdrv_drained_begin:
  *
  * Begin a quiesced section for exclusive access to the BDS, by disabling
-- 
2.9.3