Trusty SRU - Add THP fixes in 14.04 kernel

[Tim Gardner]

BugLink: http://bugs.launchpad.net/bugs/1357014

The following changes since commit 12dc9db804c054de7176138962a4671e2c1cbb7d:

  UBUNTU: Ubuntu-3.13.0-35.62 (2014-08-14 21:23:50 -0400)

are available in the git repository at:

  git://kernel.ubuntu.com/rtg/ubuntu-trusty.git

for you to fetch changes up to 4f94eaf8b2f7a6194c19d97eeacf33ad1a12de53:

  powerpc: subpage_protect: Increase the array size to take care of 64TB
(2014-08-21 13:33:25 -0600)

----------------------------------------------------------------
Aneesh Kumar K.V (10):
      powerpc/mm: Add new "set" flag argument to pte/pmd update function
      powerpc/thp: Add write barrier after updating the valid bit
      powerpc/thp: Don't recompute vsid and ssize in loop on invalidate
      powerpc/thp: Invalidate old 64K based hash page mapping before
insert of 4k pte
      powerpc/thp: Handle combo pages in invalidate
      powerpc/thp: Invalidate with vpn in loop
      powerpc/thp: Use ACCESS_ONCE when loading pmdp
      powerpc/mm: Use read barrier when creating real_pte
      powerpc/thp: Add tracepoints to track hugepage invalidate
      powerpc: subpage_protect: Increase the array size to take care of 64TB

 arch/powerpc/include/asm/hugetlb.h        |  2 +-
 arch/powerpc/include/asm/machdep.h        |  6 +++---
 arch/powerpc/include/asm/mmu-hash64.h     |  3 ++-
 arch/powerpc/include/asm/pgtable-ppc64.h  | 28 ++++++++++++++++------------
 arch/powerpc/include/asm/pte-hash64-64k.h | 30
+++++++++++++++++++++++++-----
 arch/powerpc/mm/hash_native_64.c          | 40
+++++++++++-----------------------------
 arch/powerpc/mm/hugepage-hash64.c         | 94
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------
 arch/powerpc/mm/pgtable_64.c              | 56
++++++++++++++++++++++++++++++++++++--------------------
 arch/powerpc/mm/subpage-prot.c            |  2 +-
 arch/powerpc/mm/tlb_hash64.c              |  6 +++++-
 arch/powerpc/platforms/pseries/lpar.c     | 20 ++++++--------------
 include/trace/events/thp.h                | 88
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 12 files changed, 276 insertions(+), 99 deletions(-)
 create mode 100644 include/trace/events/thp.h

-- 
Tim Gardner tim.gardner at canonical.com