btrfs s ... is imprecise, as the operation isn't on a subvolume, but on the fi where the s used to be but isn't any more.
With your approval I'll go with "filesystem garbage-collection" which can be abbrevd to btrfs fi g /butter 30000 || echo there should be some more space now \ but it would have taken more than 30 sec to clean it all and in some imaginary future might trigger something instead of simply waiting for something. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html