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[Qemu-block] [PATCH v21 18/30] block/dirty-bitmap: add bdrv_dirty_bitmap


From: Vladimir Sementsov-Ogievskiy
Subject: [Qemu-block] [PATCH v21 18/30] block/dirty-bitmap: add bdrv_dirty_bitmap_next()
Date: Tue, 13 Jun 2017 17:03:46 +0300

Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
Reviewed-by: John Snow <address@hidden>
---
 block/dirty-bitmap.c         | 7 +++++++
 include/block/dirty-bitmap.h | 3 +++
 2 files changed, 10 insertions(+)

diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 07779a0f89..4e53cf1694 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -614,3 +614,10 @@ bool bdrv_has_changed_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 721f025850..a3ac9c3640 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -87,4 +87,7 @@ void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap 
*bitmap,
 bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap);
 bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs);
 
+BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap);
+
 #endif
-- 
2.11.1




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