[v2,0/2] add callbacks for inaccessible pages

Message

Claudio Imbrenda March 3, 2020, 12:25 a.m. UTC

This patchset has a fixup for gup/mm, and provides the necessary arch
hooks to enable protected virtualization.

Andrew: please simply squash/fixup the first patch into the appropriate
one that is already in your tree.

v1 -> v2:
* use put_compound_head in the first patch
* fix commit message of the second patch
* minor code cleanups
* some comments to explain why sometimes we are not doing things

Claudio Imbrenda (2):
  mm/gup: fixup for 9947ea2c1e608e32 "mm/gup: track FOLL_PIN pages"
  mm/gup/writeback: add callbacks for inaccessible pages

 include/linux/gfp.h |  6 ++++
 mm/gup.c            | 73 +++++++++++++++++++++++++++++----------------
 mm/page-writeback.c |  5 ++++
 3 files changed, 58 insertions(+), 26 deletions(-)