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block/dirty-bitmap: add bdrv_dirty_bitmap_next()

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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>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2017-06-28 15:05:18 +03:00 • committed by Max Reitz
parent a88b179fdb
commit 3dd10a06d1
2 changed files with 9 additions and 0 deletions
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7
block/dirty-bitmap.c
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@ -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);
}