Austin S Hemmelgarn posted on Thu, 09 Jul 2015 08:48:00 -0400 as excerpted:
> On 2015-07-09 08:41, Sander wrote: >> Austin S Hemmelgarn wrote (ao): >>>> What's wrong with "btrfs subvolume snapshot"? >>> >>> Well, personally I would say the fact that once something is tagged as >>> a snapshot, you can't change it to a regular subvolume without doing a >>> non-incremental send/receive. >> >> A snapshot is a subvolume. There is no such thing as "tagged as a >> snapshot". >> >> Sander >> > No, there is a bit in the subvolume metadata that says whether it's > considered a snapshot or not. Internally, they are handled identically, > but it does come into play when you consider things like btrfs subvolume > show -s (which only lists snapshots), which in turn means that certain > tasks are more difficult to script robustly. My use-case doesn't involve subvolumes or snapshots so I can't check for sure, but... I could have sworn btrfs property -t subvolume can get/set that snapshot bit. I know I saw the discussion and I think patch for it go by, but again, as I don't use them, I haven't tracked closely enough to see if it ever got in. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- 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
