diff mbox

[12/21] block/dirty-bitmap: add bdrv_dirty_bitmap_next()

Message ID 1478715476-132280-13-git-send-email-vsementsov@virtuozzo.com
State New
Headers show

Commit Message

Vladimir Sementsov-Ogievskiy Nov. 9, 2016, 6:17 p.m. UTC 
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
---
 block/dirty-bitmap.c         | 7 +++++++
 include/block/dirty-bitmap.h | 3 +++
 2 files changed, 10 insertions(+)
diff mbox

Patch

diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 4d026df..fe34d48 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -582,3 +582,10 @@  bool bdrv_has_persistent_bitmaps(BlockDriverState *bs)
 
     return false;
 }
+
+BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap)
+{
+    return bitmap == NULL ? QLIST_FIRST(&bs->dirty_bitmaps) :
+                            QLIST_NEXT(bitmap, list);
+}
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
index 8dbd16b..d71edc4 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -81,6 +81,9 @@  void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap *bitmap,
                                                 bool persistent);
 bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap);
 
+BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap);
+
 bool bdrv_has_persistent_bitmaps(BlockDriverState *bs);
 
 #endif