[Qemu-devel] [PATCH 6/9] block: Introduce bdrv_dirty_bitmap_granularity()

[Fam Zheng <famz@redhat.com>]

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

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

diff --git a/block.c b/block.c
index cc9c530..0e59a9a 100644
--- a/block.c
+++ b/block.c
@@ -4637,6 +4637,12 @@ 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 6c88f7a..858baad 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -434,6 +434,8 @@ void bdrv_dirty_bitmap_make_anon(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
 void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
 void bdrv_reference_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);
-- 
1.8.5.2