[Qemu-devel] [PATCH RFC v3 06/14] 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.

Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
 block.c               | 10 ++++++++++
 include/block/block.h |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/block.c b/block.c
index aaa08b8..4cca55d 100644
--- a/block.c
+++ b/block.c
@@ -5649,6 +5649,16 @@ BlockDirtyBitmapInfo 
*bdrv_query_dirty_bitmap(BlockDriverState *bs,
     return info;
 }
 
+BdrvDirtyBitmap *bdrv_next_dirty_bitmap(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap)
+{
+    if (bitmap == NULL) {
+        return QLIST_FIRST(&bs->dirty_bitmaps);
+    }
+
+    return QLIST_NEXT(bitmap, list);
+}
+
 int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t 
sector)
 {
     if (bitmap) {
diff --git a/include/block/block.h b/include/block/block.h
index f2c62f6..d11d956 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -487,6 +487,8 @@ void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap 
*bitmap,
 void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
                                           uint64_t start, uint64_t count);
 void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
+BdrvDirtyBitmap *bdrv_next_dirty_bitmap(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap);
 
 HBitmap *bdrv_create_meta_bitmap(BdrvDirtyBitmap *bitmap,
                                         uint64_t granularity);
-- 
1.9.1