[PATCH v3 0/3] restructure memfd code

[Mike Kravetz <mike.kravetz@oracle.com>]

This is a replacement for "Patch series restructure memfd code, v2"
which is currently in mmotm and consists of:
- mm: hugetlbfs: move HUGETLBFS_I outside #ifdef CONFIG_HUGETLBFS
- mm: memfd: split out memfd for use by multiple filesystems
- mm: memfd: remove memfd code from shmem files and use new memfd files

The above series incorrectly moves the memfd code out of shemm.c as
a separate commit.  Please let me know if there are any issues with
the way code is restructured/moved in this series.  Specifically,
the last patch.

While redoing the series, all sparse warnings in mm/shmem.c are fixed
in patch 1.  Patch 2 updates comments and file checking such that patch
3 is only code movement.

Mike Kravetz (3):
  mm/shmem: add __rcu annotations and properly deref radix entry
  mm/shmem: update file sealing comments and file checking
  mm: restructure memfd code

 fs/Kconfig               |   3 +
 fs/fcntl.c               |   2 +-
 include/linux/memfd.h    |  16 +++
 include/linux/shmem_fs.h |  13 --
 mm/Makefile              |   1 +
 mm/memfd.c               | 344 +++++++++++++++++++++++++++++++++++++++++++++++
 mm/shmem.c               | 338 ++--------------------------------------------
 7 files changed, 376 insertions(+), 341 deletions(-)
 create mode 100644 include/linux/memfd.h
 create mode 100644 mm/memfd.c

-- 
2.13.6