Hi! > > Quite likely, other filesystems does have an inode flag that is set when > > file has been compressed and simply report that in the foo_getattr() > > callback. Looking at bcachefs I supose that we need to figure out if the > > inode is v3 and then unpack the v3 info to get to the compressed flag, > > you probably know best how to do that. > > I'm still not clear how we want to map STATX_ATTR_COMPRESSED, since it's > extents that are compressed, not entire files - and just reporting the > compression option is probably not what we want since it can be flipped > off, and existing data will still be compressed. > > Do you know anything about the intended use case? As far as I understand the flag it's a hint that the file I/O may be slower/need more memory because of the compression. -- Cyril Hrubis chrubis@xxxxxxx
