[Qemu-devel] [PATCH RFC v2 3/8] block: BdrvDirtyBitmap serialization interface

[Vladimir Sementsov-Ogievskiy <vsementsov@parallels.com>]

Several functions to provide necessary access to BdrvDirtyBitmap for
block-migration.c

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@parallels.com>
---
 block.c               | 36 ++++++++++++++++++++++++++++++++++++
 include/block/block.h | 12 ++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/block.c b/block.c
index 6d3f0b2..9860fc1 100644
--- a/block.c
+++ b/block.c
@@ -5552,6 +5552,42 @@ void bdrv_clear_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap)
     hbitmap_reset(bitmap->bitmap, 0, bitmap->size);
 }
 
+const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap)
+{
+    return bitmap->name;
+}
+
+uint64_t bdrv_dirty_bitmap_data_size(const BdrvDirtyBitmap *bitmap,
+                                     uint64_t count)
+{
+    return hbitmap_data_size(bitmap->bitmap, count);
+}
+
+void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
+                                      uint8_t *buf, uint64_t start,
+                                      uint64_t count)
+{
+    hbitmap_serialize_part(bitmap->bitmap, buf, start, count);
+}
+
+void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
+                                        uint8_t *buf, uint64_t start,
+                                        uint64_t count)
+{
+    hbitmap_deserialize_part(bitmap->bitmap, buf, start, count);
+}
+
+void bdrv_dirty_bitmap_deserialize_part0(BdrvDirtyBitmap *bitmap,
+                                         uint64_t start, uint64_t count)
+{
+    hbitmap_deserialize_part0(bitmap->bitmap, start, count);
+}
+
+void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap)
+{
+    hbitmap_deserialize_finish(bitmap->bitmap);
+}
+
 static void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector,
                            int nr_sectors)
 {
diff --git a/include/block/block.h b/include/block/block.h
index 6cf067f..0890cd2 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -460,6 +460,18 @@ void bdrv_set_dirty_iter(struct HBitmapIter *hbi, int64_t offset);
 int64_t bdrv_get_dirty_count(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
 
 void bdrv_print_dirty_bitmap(BdrvDirtyBitmap *bitmap);
+const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap);
+uint64_t bdrv_dirty_bitmap_data_size(const BdrvDirtyBitmap *bitmap,
+                                     uint64_t count);
+void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
+                                      uint8_t *buf, uint64_t start,
+                                      uint64_t count);
+void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
+                                        uint8_t *buf, uint64_t start,
+                                        uint64_t count);
+void bdrv_dirty_bitmap_deserialize_part0(BdrvDirtyBitmap *bitmap,
+                                         uint64_t start, uint64_t count);
+void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
 
 void bdrv_enable_copy_on_read(BlockDriverState *bs);
 void bdrv_disable_copy_on_read(BlockDriverState *bs);
-- 
1.9.1