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Subject[PATCH 0/7] userfaultfd: enable zeropage support for shmem
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Hi,

These patches enable support for UFFDIO_ZEROPAGE for shared memory.

The first two patches are not strictly related to userfaultfd, they are
just minor refactoring to reduce amount of code duplication.

Mike Rapoport (7):
shmem: shmem_charge: verify max_block is not exceeded before inode update
shmem: introduce shmem_inode_acct_block
userfaultfd: shmem: add shmem_mfill_zeropage_pte for userfaultfd support
userfaultfd: mcopy_atomic: introduce mfill_atomic_pte helper
userfaultfd: shmem: wire up shmem_mfill_zeropage_pte
userfaultfd: report UFFDIO_ZEROPAGE as available for shmem VMAs
userfaultfd: selftest: enable testing of UFFDIO_ZEROPAGE for shmem

fs/userfaultfd.c | 10 +-
include/linux/shmem_fs.h | 6 ++
mm/shmem.c | 167 +++++++++++++++++--------------
mm/userfaultfd.c | 48 ++++++---
tools/testing/selftests/vm/userfaultfd.c | 2 +-
5 files changed, 136 insertions(+), 97 deletions(-)

--
2.7.4

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