Based on Linus' master.
While working on improving vm_normal_page() and friends, I stumbled
over this issues: refcounted "normal" pages must not be marked
using pmd_special() / pud_special().
Fortunately, so far there doesn't seem to be serious damage.
This is only compile-tested so far. Still looking for an easy way to test
PMD/PUD mappings with DAX. Any tests I can easily run?
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Alistair Popple <apop...@nvidia.com>
Cc: Lorenzo Stoakes <lorenzo.stoa...@oracle.com>
Cc: "Liam R. Howlett" <liam.howl...@oracle.com>
Cc: Vlastimil Babka <vba...@suse.cz>
Cc: Mike Rapoport <r...@kernel.org>
Cc: Suren Baghdasaryan <sur...@google.com>
Cc: Michal Hocko <mho...@suse.com>
Cc: Zi Yan <z...@nvidia.com>
Cc: Baolin Wang <baolin.w...@linux.alibaba.com>
Cc: Nico Pache <npa...@redhat.com>
Cc: Ryan Roberts <ryan.robe...@arm.com>
Cc: Dev Jain <dev.j...@arm.com>
Cc: Dan Williams <dan.j.willi...@intel.com>
David Hildenbrand (2):
mm/huge_memory: don't mark refcounted pages special in
vmf_insert_folio_pmd()
mm/huge_memory: don't mark refcounted pages special in
vmf_insert_folio_pud()
include/linux/mm.h | 15 ++++++++++
mm/huge_memory.c | 72 +++++++++++++++++++++++++++++++++++-----------
2 files changed, 70 insertions(+), 17 deletions(-)
base-commit: a9dfb7db96f7bc1f30feae673aab7fdbfbc94e9c
--
2.49.0
