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-rw-r--r--include/block/block_int.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 8437df85a2..dd7276cde2 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -702,6 +702,10 @@ struct BlockDriverState {
char filename[PATH_MAX];
char backing_file[PATH_MAX]; /* if non zero, the image is a diff of
this file image */
+ /* The backing filename indicated by the image header; if we ever
+ * open this file, then this is replaced by the resulting BDS's
+ * filename (i.e. after a bdrv_refresh_filename() run). */
+ char auto_backing_file[PATH_MAX];
char backing_format[16]; /* if non-zero and backing_file exists */
QDict *full_open_options;