[PATCH v2 0/5] mm: mincore: misc cleanups

[Kefeng Wang <wangkefeng.wang@huawei.com>]

This series cleans up and simplifies the mincore. Most importantly,
it removes the historical special handling for VM_PFNMAP mappings,
reporting them as resident memory instead of always being non-resident
memory.

v2:
- Separate per-VMA lock changes as suggested by Pedro, it should be
  based on the new API [1], will resend once new API out. 
- Check VM_PFNMAP explicitly in can_do_mincore() to avoid trigger a
  split in the page table walk, found in sashiko[[2]
- Replace GFP_USER with GFP_KERNEL, suggested by Andrew
- Add Pedro RB and mincore_page() refactor patch

[1] https://lore.kernel.org/linux-mm/20260610230415.C0521C88@davehans-spike.ostc.intel.com/ 
[2] https://sashiko.dev/#/patchset/20260701144047.3786939-1-wangkefeng.wang%40huawei.com?part=2

Kefeng Wang (5):
  mm: mincore: remove special handling for VM_PFNMAP
  mm: mincore: replace __get_free_page() with kmalloc()
  mm: mincore: remove xa_is_value() in mincore_swap()
  mm: mincore: improve mincore_hugetlb()
  mm: mincore: refactor mincore_page()

 mm/mincore.c | 66 ++++++++++++++++++----------------------------------
 1 file changed, 22 insertions(+), 44 deletions(-)

-- 
2.55.0