[PATCH v2] Xen PCI and Xen SWIOTLB patches for 3.2

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

I am proposing these six patches for 3.2.

Changelog [since v1: https://lkml.org/lkml/2011/8/24/435]
 - Make the string in pcifront be a continous line.
 - Implement some smarts in coherent alloc/dealloc so it does not
   always make a whole bunch hypercalls.

[v1 said]:
Nothing really exciting about them - just update some comments, fix
comments, and also make Xen SWIOTLB a bit smarter. Please take a look.

Patches are also available at:

git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/pci.fixes


 drivers/pci/xen-pcifront.c |    5 +--
 drivers/xen/pci.c          |   11 ++++--
 drivers/xen/swiotlb-xen.c  |   70 +++++++++++++++++++++++++++++++++----------
 3 files changed, 62 insertions(+), 24 deletions(-)

Jan Beulich (1):
      xen/pci: make bus notifier handler return sane values

Konrad Rzeszutek Wilk (4):
      xen-pcifront: Update warning comment to use 'e820_host' option.
      xen-swiotlb: Retry up three times to allocate Xen-SWIOTLB
      xen-swiotlb: Fix wrong panic.
      xen-swiotlb: When doing coherent alloc/dealloc check before swizzling the MFNs.

Randy Dunlap (1):
      xen-swiotlb: fix printk and panic args