Hey Linus,

Please git pull the following git branch:

git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen stable/e820-3.2

wherein:

#stable/e820-3.2 is based of git commit d93dc5c (Linux 3.1-rc7):
and removes a lot of the old E820 parse code to a) make it easier to understand, 
b) working properly when ballooning, and c) removes lots of code!

David Vrabel (5):
      xen/balloon: account for pages released during memory setup
      xen/balloon: simplify test for the end of usable RAM
      xen: allow balloon driver to use more than one memory region
      xen: allow extra memory to be in multiple regions
      xen: release all pages within 1-1 p2m mappings

 arch/x86/xen/setup.c  |  284 +++++++++++++++++++++----------------------------
 drivers/xen/balloon.c |   50 ++++++----
 include/xen/page.h    |   12 ++-
 3 files changed, 165 insertions(+), 181 deletions(-)