Christoph Anton Mitterer posted on Wed, 30 Dec 2015 21:00:11 +0100 as excerpted: > On Tue, 2015-12-29 at 19:06 +0100, David Sterba wrote: >> > Both open of course many questions (how to deal with crashes, >> > etc.)... >> > maybe having a look at how mdadm handles similar problems could be >> > worth. >> >> The crash consistency should remain, other than that we'd have to >> enhance the balance filters to process only the unconverted chunks to >> continue. > > What about nodatacow'ed files? I'd expect that in case of a crash during > reshaping, these files are (likely) garbage then right? > Not particularly desirable... For something like that, it'd pretty much /have/ to be done as COW, at least at the chunk level, tho the address from the outside may stay the same. That's what balance already does, after all. -- 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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
