From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Date: Wed, 28 Jun 2017 12:05:18 +0000 (+0300)
Subject: block/dirty-bitmap: add bdrv_dirty_bitmap_next()
X-Git-Tag: v2.10.0-rc0~80^2~45
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3dd10a06d173e0904c6d47ced1de67c40139d5b1;p=thirdparty%2Fqemu.git

block/dirty-bitmap: add bdrv_dirty_bitmap_next()

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170628120530.31251-19-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
---

diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 3c17c452ae2..d1469418e61 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 bdf43df694d..c8b31105039 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