5% of a 16T filesystem is getting a little crazy from the point of view of "root-reserved" - 800G! But I think the original reason for this reserved space was actually as an allocator cushion; letting root gain access to it was just a safety-valve for that. Now that we have a completely different allocator in ext4, and potentially much larger filesystems, I think we need to revisit how much is held back, and for what reason. Any thoughts on a reasonable way to scale this reservation (or, just for discussion - if it's even needed at all today for ext4?) -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