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-rw-r--r--include/block/block.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h
index 6e7275d95b..eac9bb0957 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -397,6 +397,9 @@ void bdrv_get_backing_filename(BlockDriverState *bs,
char *filename, int filename_size);
void bdrv_get_full_backing_filename(BlockDriverState *bs,
char *dest, size_t sz);
+void bdrv_get_full_backing_filename_from_filename(const char *backed,
+ const char *backing,
+ char *dest, size_t sz);
int bdrv_is_snapshot(BlockDriverState *bs);
int path_has_protocol(const char *path);