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-rw-r--r--include/block/block.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h
index 9661f9aa46..94d84b409d 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -280,6 +280,8 @@ int bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors);
int bdrv_has_zero_init(BlockDriverState *bs);
int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
int *pnum);
+int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base,
+ int64_t sector_num, int nb_sectors, int *pnum);
void bdrv_set_on_error(BlockDriverState *bs, BlockdevOnError on_read_error,
BlockdevOnError on_write_error);