[URGENT] The XFS support was broken in the GRUB 2.06 and 2.11

[Daniel Kiper]

Hi,

Erwan Velu reported and posted a patch for the XFS issue which was
introduced in the GRUB 2.06. In some cases it is impossible to read the
XFS filesystem without the patch. So, please pick it up from the GRUB
git repository if you are using 2.06 or 2.11 (development version).
This is the commit a4b495520 (fs/xfs: Fix unreadable filesystem with v4
superblock).

Erwan, thank you for fixing the issue.

Daniel