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[Qemu-block] [PATCH v22 18/30] block/dirty-bitmap: add bdrv_dirty_bitmap


From: Vladimir Sementsov-Ogievskiy
Subject: [Qemu-block] [PATCH v22 18/30] block/dirty-bitmap: add bdrv_dirty_bitmap_next()
Date: Wed, 28 Jun 2017 15:05:18 +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 | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 3c17c452ae..d1469418e6 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -718,3 +718,10 @@ 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 3995789218..ccf2f81640 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -95,5 +95,7 @@ bool bdrv_has_readonly_bitmaps(BlockDriverState *bs);
 bool bdrv_dirty_bitmap_get_autoload(const 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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