Merge branch 'backports-for-konrad' of git://ca-git.us.oracle.com/linux-eufimtse...

* 'backports-for-konrad' of git://ca-git.us.oracle.com/linux-eufimtse-public: (31 commits)
  xen-netfront: Remove the meaningless code
  net/xen-netfront: Correct printf format in xennet_get_responses
  xen-netfront: Use setup_timer
  xen/xenbus: Don't leak memory when unmapping the ring on HVM backend
  Revert "xen/events/fifo: Handle linked events when closing a port"
  x86/xen: build "Xen PV" APIC driver for domU as well
  xen/events/fifo: Handle linked events when closing a port
  xen: release lock occasionally during ballooning
  xen/gntdevt: Fix race condition in gntdev_release()
  block/xen-blkback: s/nr_pages/nr_segs/
  block/xen-blkfront: Remove invalid comment
  arm/xen: Drop duplicate define mfn_to_virt
  xen/grant-table: Remove unused macro SPP
  xen/xenbus: client: Fix call of virt_to_mfn in xenbus_grant_ring
  xen: Include xen/page.h rather than asm/xen/page.h
  kconfig: add xenconfig defconfig helper
  kconfig: clarify kvmconfig is for kvm
  xen/pcifront: Remove usage of struct timeval
  xen/tmem: use BUILD_BUG_ON() in favor of BUG_ON()
  hvc_xen: avoid uninitialized variable warning
  ...

Backports from Linux 4.1

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>