Hello, I am currently playing with snapshots and manual deduplication of files. During these tests I noticed the change of ctime and mtime in the snapshot after the deduplication with FILE_EXTENT_SAME. Does this happens on purpose? Otherwise I would like to have ctime and mtime left unmodified, because on a read only snapshot I cannot change them back after the ioctl call. I attached a very basic patch, which illustrates my idea. Thanks, Gerhard