[Xenial SRU] Xenial update to 4.4.153 stable release

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[Xenial SRU] Xenial update to 4.4.153 stable release

Stefan Bader-2

Skipped "x86/mm/pat: Fix L1TF stable backport for CPA" because that
would only be required if we had reverted "86/mm/pat: Ensure cpa->pfn
only contains page frame numbers". Which upstream stable did in 4.4.104
but we did not. By sheer luck this failed to apply because of incorrect
use of tabs and spaces in our version.
Not sure what the issues were which led to the revert but if we ever have
to we also need to pick up this one.

Manual adaption of "ovl: Ensure upper filesystem supports d_type" due to
delta introduced by "UBUNTU: SAUCE: overlay: add backwards compatible
overlayfs format support V4".



The following changes since commit 0a6cdbeb00e9d7729dec37fc06cf26b698f7b412:

  Linux 4.4.152 (2018-09-13 14:07:48 +0200)

are available in the git repository at:

  git://git.launchpad.net/~smb/+git/linux-xenial stable-4.4

for you to fetch changes up to 3619da8bd7b352fdf4b25b47545c0029bdb7adbc:

  Linux 4.4.153 (2018-09-13 15:14:37 +0200)

Eric Biggers (1):
      x86/mm: Fix use-after-free of ldt_struct

Greg Kroah-Hartman (1):
      Linux 4.4.153

Vivek Goyal (3):
      ovl: Ensure upper filesystem supports d_type
      ovl: Do d_type check only if work dir creation was successful
      ovl: warn instead of error if d_type is not supported

 Makefile                           |  2 +-
 arch/x86/include/asm/mmu_context.h |  3 +--
 fs/overlayfs/overlayfs.h           |  1 +
 fs/overlayfs/readdir.c             | 37 +++++++++++++++++++++++++++++++++++++
 fs/overlayfs/super.c               | 20 ++++++++++++++++++++
 5 files changed, 60 insertions(+), 3 deletions(-)

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