[PATCH v2 00/10] Use generic_file_read_iter() in hugetlbfs

["Matthew Wilcox (Oracle)" <willy@infradead.org>]

This set of patches are separated out from Jane's earlier series.
https://lore.kernel.org/linux-mm/20260617172534.1740152-1-jane.chu@oracle.com/

There's enough potentially controversial things in here that I think
it's worth considering them by themselves.  First, handling hwpoison
in filemap_read().  I want this for shmem as well as for hugetlbfs (a
later patchset, maybe).  Second, handling misses in the pagecache as
holes rather than opportunities to populate the pagecache.

v1 here: https://lore.kernel.org/linux-mm/20260707181713.208282-1-willy@infradead.org/
Sashiko had a lot of valuable feedback on that, and that's all addressed
here except for the things that I don't think are relevant.

Jane Chu (2):
  filemap: Add hwpoison handling to filemap_read()
  hugetlb: replace hugetlbfs_read_iter() with generic_file_read_iter()

Matthew Wilcox (Oracle) (8):
  mm: Rename folio_contain_hwpoison_page() to folio_has_hwpoison_page()
  hugetlb: Mark some function arguments as const
  filemap: Remove checks in mapping_set_folio_order_range()
  hugetlb: Set mapping folio order
  memory-failure: Remove raw_hwp_list_head()
  memory-failure: Prevent UAF in raw_hwp_page list
  mm: Handle hugetlb correctly in is_page_hwpoison()
  filemap: Add support for authoritative mappings

 fs/hugetlbfs/inode.c       | 122 ++++---------------------------------
 include/linux/hugetlb.h    |  24 +++-----
 include/linux/mm_types.h   |   4 +-
 include/linux/page-flags.h |  28 ++++++---
 include/linux/pagemap.h    |  32 +++++-----
 mm/filemap.c               |  46 +++++++++++++-
 mm/huge_memory.c           |   2 +-
 mm/hugetlb.c               |   2 +-
 mm/memory-failure.c        |  39 ++++++------
 mm/memory_hotplug.c        |   2 +-
 mm/shmem.c                 |   2 +-
 mm/vmscan.c                |   2 +-
 12 files changed, 128 insertions(+), 177 deletions(-)

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2.47.3