block/dirty-bitmap: introduce bdrv_dirty_bitmap_status()

Add a convenient function similar with bdrv_block_status() to get
status of dirty bitmap.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220303194349.2304213-9-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 9aa5aebaa9..da1b91166f 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -879,6 +879,12 @@ bool bdrv_dirty_bitmap_next_dirty_area(BdrvDirtyBitmap *bitmap,
                                    dirty_start, dirty_count);
 }
 
+bool bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap, int64_t offset,
+                              int64_t bytes, int64_t *count)
+{
+    return hbitmap_status(bitmap->bitmap, offset, bytes, count);
+}
+
 /**
  * bdrv_merge_dirty_bitmap: merge src into dest.
  * Ensures permissions on bitmaps are reasonable; use for public API.