I'll keep it short and sweet: Can we add a consistent "--eatmydata" type of hurdle to jump over before people are allowed to use either the so-far-less-tested tools and/or options therein? I'm thinking of, so far: e4defrag mkfs.ext4 -O meta_bg (?) mkfs.ext4 -E lazy_itable_init=1 tune2fs -I <bigger> without the --eatmydata option (feel free to edit for clarity) we could get something like: "The ____ option is experimental and/or incomplete, and should be used only for testing at this point. Please re-issue your command with '--eatmydata' option to use this option." Thoughts? I'm nervous about ext4 coming into wider use and people finding some of the bits which aren't -quite- ready for prime time yet, and winding up with a disaster. Thanks, -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html