[Qemu-devel] [PATCH 05/17] block: add bdrv_next_dirty_bitmap()

[Vladimir Sementsov-Ogievskiy]

Like bdrv_next()  - bdrv_next_dirty_bitmap() is a function to provide
access to private dirty bitmaps list.

Reviewed-by: John Snow <address@hidden>
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
 block/dirty-bitmap.c         | 10 ++++++++++
 include/block/dirty-bitmap.h |  3 +++
 2 files changed, 13 insertions(+)

diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 919ce10..2656b8b 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -490,3 +490,13 @@ int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap)
 {
     return hbitmap_count(bitmap->bitmap);
 }
+
+BdrvDirtyBitmap *bdrv_next_dirty_bitmap(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap)
+{
+    if (bitmap == NULL) {
+        return QLIST_FIRST(&bs->dirty_bitmaps);
+    }
+
+    return QLIST_NEXT(bitmap, list);
+}
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
index 6ba5bec..1ccab36 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -68,4 +68,7 @@ void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap 
*bitmap,
                                           bool finish);
 void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
 
+BdrvDirtyBitmap *bdrv_next_dirty_bitmap(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap);
+
 #endif
-- 
1.8.3.1