diff mbox

[05/13] block: add bdrv_next_dirty_bitmap()

Message ID 1447255003-2043-6-git-send-email-vsementsov@virtuozzo.com
State New
Headers show

Commit Message

Vladimir Sementsov-Ogievskiy Nov. 11, 2015, 3:16 p.m. UTC 
Like bdrv_next()  - bdrv_next_dirty_bitmap() is a function to provide
access to private dirty bitmaps list.

Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 block.c               | 10 ++++++++++
 include/block/block.h |  2 ++
 2 files changed, 12 insertions(+)
diff mbox

Patch

diff --git a/block.c b/block.c
index 05307bc..8863034 100644
--- a/block.c
+++ b/block.c
@@ -3384,6 +3384,16 @@  BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs)
     return list;
 }
 
+BdrvDirtyBitmap *bdrv_next_dirty_bitmap(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap)
+{
+    if (bitmap == NULL) {
+        return QLIST_FIRST(&bs->dirty_bitmaps);
+    }
+
+    return QLIST_NEXT(bitmap, list);
+}
+
 int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t sector)
 {
     if (bitmap) {
diff --git a/include/block/block.h b/include/block/block.h
index 7deb8e8..ab5644f 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -511,6 +511,8 @@  void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
 void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
                                           uint64_t start, uint64_t count);
 void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
+BdrvDirtyBitmap *bdrv_next_dirty_bitmap(BlockDriverState *bs,
+                                        BdrvDirtyBitmap *bitmap);
 
 /* chunk size here is number of bytes of the @bitmap data per one bit of the
  * meta bitmap being created */