At least what I can tell its both - you need a patch and some arguments for mkfs. Search the list, about one month ago edward explained it to me (with link to patches and README file).
Good luck, lg Clemens 2006/12/2, Tim Heinrich <[EMAIL PROTECTED]>:
Hi, i have heard about the compress plugin, but I could not find information how to use it... Do I need a special patch or is it a option to mkfs.reiser4? Tim