Sorry for being so very late to the party, but rather than messing with xattrs, why not just have a specific file (say, default /.whiteout, but selectable via a mount option) and links to it are counted as whiteout entries? All you need to do is resolve the link (it's probably a good idea to allow symlinks to avoid hard-link count limits) and compare the fs and inode number. It's kind of hackish, but it could be done on pretty much *any* Unix file system. VFAT would be SOL, but that's probably acceptable. (Any security options on mount point crossing or consistent ownership of symlinks that you want to impose would probably be of general VFS use, and again, not FS-specific.) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
