Hello! I have reviewed all changes in time when v10 has been preparing. There is just a small issue with description of EXFAT_DEFAULT_IOCHARSET option (see email). Otherwise it looks good you can add my Reviewed-by on whole patch series. Reviewed-by: Pali Rohár <pali.rohar@xxxxxxxxx> Next steps for future: * De-duplicate cache code between fat and exfat. Currently fs/exfat cache code is heavily copy-paste of fs/fat cache code. * De-duplicate UTF-16 functions. Currently fs/exfat has e.g. helper functions for surrogate pairs copy-paste from fs/nls. * Unify EXFAT_DEFAULT_IOCHARSET and FAT_DEFAULT_IOCHARSET. Or maybe unify it with other filesystems too. * After applying this patch series, remote staging exfat implementation. -- Pali Rohár pali.rohar@xxxxxxxxx