Hugo Mills posted on Sun, 30 Nov 2014 13:53:28 +0000 as excerpted: > On Sun, Nov 30, 2014 at 07:08:51PM +0530, Shriramana Sharma wrote: >> On Sun, Nov 30, 2014 at 5:29 PM, Hugo Mills <h...@carfax.org.uk> wrote: >> > >> > In the data structures on disk, it's 5. The kernel aliases 0 to >> > mean subvolid 5. >> >> So why 5 and not just 0 which seems a logical choice? On top of this, >> one needs to alias 0 to 5! > > All of the trees used in the FS metadata have an ID number. The > "well-known" trees have small, fixed IDs:
Thanks, Hugo. You might wish to find a place in the wiki (probably in the FAQ) for that, since your explanation was both the clearest I can imagine and cleared up some lingering "but why?" questions along that line for me, as well. And if an answer to that basic a btrfs question is still clearing stuff up for me, I expect it could be useful to well over 90% of potential btrfs wiki FAQ readers... -- 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
