Bug#769576: linux: Btrfs goes forced readonly when qgroup already exists

["Sebastiaan L. Zoutendijk" <baszoutendijk@gmail.com>]

Control: found -1 3.16.7-ckt2-1

On Thu 27 Nov 2014 at 19:41:20 +0100, Sebastiaan L. Zoutendijk wrote:
> On kernel 3.16.7-2, which is in sid and jessie, I have also been able to
> reproduce the bug, with the same kind of error messages in dmesg.
> Applying the patch again solved the issue.  As I suspected, this bug is
> present in the latest official Debian kernel to be shipped with jessie.

I have checked again with the latest unstable kernel: the problem is
still present and the patch still fixes it.  As we now have a new
upstream for the 3.16 kernel, I'll forward this bug to the ckt in a few
minutes.