[Qemu-devel] [PATCH v2 4/9] block: Introduce bdrv_dirty_bitmap_granularity()

[Fam Zheng]

This returns the granularity (in sectors) of dirty bitmap.

Signed-off-by: Fam Zheng <address@hidden>
---
 block.c               | 6 ++++++
 include/block/block.h | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/block.c b/block.c
index 9de1385..26a43eb 100644
--- a/block.c
+++ b/block.c
@@ -5143,6 +5143,12 @@ int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap 
*bitmap, int64_t sector
     }
 }
 
+int bdrv_dirty_bitmap_granularity(BlockDriverState *bs,
+                                  BdrvDirtyBitmap *bitmap)
+{
+    return hbitmap_granularity(bitmap->bitmap);
+}
+
 void bdrv_dirty_iter_init(BlockDriverState *bs,
                           BdrvDirtyBitmap *bitmap, HBitmapIter *hbi)
 {
diff --git a/include/block/block.h b/include/block/block.h
index aa0c5e4..b87c071 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -446,6 +446,8 @@ BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState 
*bs,
 void bdrv_dirty_bitmap_make_anon(BlockDriverState *bs, BdrvDirtyBitmap 
*bitmap);
 void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
 BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs);
+int bdrv_dirty_bitmap_granularity(BlockDriverState *bs,
+                                  BdrvDirtyBitmap *bitmap);
 int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t 
sector);
 void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
 void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, int 
nr_sectors);
-- 
1.9.0