Hey. On Mon, 2015-11-23 at 20:56 +0800, Anand Jain wrote: > This patch disables default features based on the running kernel. Not sure if that's very realistic in practise (most people will have some distro, whose btrfsprogs version probably matches the kernel), but purely from the end-user PoV:
I would find it useful if btrfs gives a warning if it creates a filesystem which (because unsupported in the current kernel) lacks features which are considered default by then. AFAIU, really "clonding" (I mean including all snapshots, subvols, etc.) a btrfs is not possible right now (or is it?), so a btrfs is something that rather should stay longer (as one cannot easily copy&swap it to/with a new one)... so for me as an end-user, it may be easier to switch to a newer kernel, in order to get a feature which is default, than to migrate the fs later. Cheers, Chris.
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