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[Qemu-block] [PATCH 12/24] block/dirty-bitmap: add bdrv_dirty_bitmap_nex


From: Vladimir Sementsov-Ogievskiy
Subject: [Qemu-block] [PATCH 12/24] block/dirty-bitmap: add bdrv_dirty_bitmap_next()
Date: Mon, 23 Jan 2017 15:10:24 +0300

Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Reviewed-by: Max Reitz <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 4d026df1bd..fe34d488aa 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 8dbd16b040..d71edc4d13 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
-- 
2.11.0




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