Am Montag, 25. Februar 2013 schrieb Zach Brown: > > I updates my previous patches [1] to add support for raid5/6. > > These patches update the btrfs fi df command and add two new commands: > > - btrfs filesystem disk-usage <path> > > - btrfs device disk-usage <path> > > This seems like a ton of code. > > Here's a thought experiment: What's the smallest possible change that > could communicate the information that people don't have today?
The kind and amount of information output of these additions have been discussed several times before. I found the output provided quite useful. As others. Free space seems to be a complex matter in BTRFS and one conclusion was that its not easily possible to provide a single number to show how much space is free. I´d still like that for df, whose output is quite bogus in certain BTRFS setups at the moment and does not give applications a realistic estimate at all. One example is raid 1 with 10 GB each disk. Shows 20 GB free. An application which wants to write 15 GB will fail. Which can break installer scripts, package management, cache software or anything else which checks for free space. Thus I´d like df to default to *minimum* free. But what is it concretely, what you feel uncomfortable with? The Linux kernel is also a ton of code. I´d really like to see Goffredo improvements go in instead of them being discussed endlessly. So I´d like to feedback to be as concrete as possible, so Goffredo has a chance to work on it. Ciao, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- 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
