[PATCH v5 0/2] kvm: Use huge pages for DAX-backed files

[Barret Rhoden]

This patchset allows KVM to map huge pages for DAX-backed files.

v4 -> v5:
v4: https://lore.kernel.org/lkml/20191211213207.215936-1-brho@xxxxxxxxxx/
- Rebased onto kvm/queue
- Removed the switch statement and fixed PUD_SIZE; just use
  dev_pagemap_mapping_shift() > PAGE_SHIFT
- Added explanation of parameter changes to patch 1's commit message

v3 -> v4:
v3: https://lore.kernel.org/lkml/20190404202345.133553-1-brho@xxxxxxxxxx/
- Rebased onto linus/master

v2 -> v3:
v2: https://lore.kernel.org/lkml/20181114215155.259978-1-brho@xxxxxxxxxx/
- Updated Acks/Reviewed-by
- Rebased onto linux-next

v1 -> v2:
https://lore.kernel.org/lkml/20181109203921.178363-1-brho@xxxxxxxxxx/
- Updated Acks/Reviewed-by
- Minor touchups
- Added patch to remove redundant PageReserved() check
- Rebased onto linux-next

RFC/discussion thread:
https://lore.kernel.org/lkml/20181029210716.212159-1-brho@xxxxxxxxxx/

Barret Rhoden (2):
  mm: make dev_pagemap_mapping_shift() externally visible
  kvm: Use huge pages for DAX-backed files

 arch/x86/kvm/mmu/mmu.c | 31 +++++++++++++++++++++++++++----
 include/linux/mm.h     |  3 +++
 mm/memory-failure.c    | 38 +++-----------------------------------
 mm/util.c              | 34 ++++++++++++++++++++++++++++++++++
 4 files changed, 67 insertions(+), 39 deletions(-)

-- 
2.24.0.525.g8f36a354ae-goog