(xen) stable/for-linus-3.7-rc4-tag

Hey Linus,

Please git pull the following tag:

git pull git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/for-linus-3.7-rc4-tag

which has the following fixes (copy-n-paste from the signed tag):

<tag>
Bug-fixes:
* Use appropriate macros instead of hand-rolling our own (ARM).
* Fixes if FB/KBD closed unexpectedly.
* Fix memory leak in /dev/gntdev ioctl calls.
* Fix overflow check in xenbus_file_write.
* Document cleanup.
* Performance optimization when migrating guests.
</tag>

Nothing major - rather just incremental fixes.

 arch/arm/xen/hypercall.S                 | 14 +++++--------
 arch/x86/include/asm/xen/hypervisor.h    |  1 -
 arch/x86/xen/mmu.c                       | 21 ++++++++++++++++++-
 drivers/input/misc/xen-kbdfront.c        |  5 ++++-
 drivers/video/xen-fbfront.c              |  5 ++++-
 drivers/xen/gntdev.c                     | 36 +++++++++++++++++---------------
 drivers/xen/xenbus/xenbus_dev_frontend.c |  2 +-
 include/trace/events/xen.h               |  8 +++++++
 8 files changed, 61 insertions(+), 31 deletions(-)

David Vrabel (3):
xen/gntdev: don't leak memory from IOCTL_GNTDEV_MAP_GRANT_REF
xen-fbfront: handle backend CLOSED without CLOSING
xen-kbdfront: handle backend CLOSED without CLOSING

Jan Beulich (1):
xen/xenbus: fix overflow check in xenbus_file_write()

Konrad Rzeszutek Wilk (1):
xen/mmu: Use Xen specific TLB flush instead of the generic one.

Olaf Hering (1):
x86: remove obsolete comment from asm/xen/hypervisor.h

Stefano Stabellini (1):
xen/arm: use the __HVC macro