[RFC PATCH 0/3] snapshot_page()

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

This compiles fine, but I have not tested it in any meaningful way.
Anyone got a good test case to be sure I didn't break anything?

Matthew Wilcox (Oracle) (3):
  mm: Constify folio_mapping() and swapcache_mapping()
  mm: Create snapshot_page()
  proc: Use snapshot_page() in kpageflags

 fs/proc/page.c          | 24 ++++++++++--------
 include/linux/pagemap.h |  4 +--
 mm/debug.c              | 55 ++++++++---------------------------------
 mm/internal.h           |  2 ++
 mm/swapfile.c           |  2 +-
 mm/util.c               | 52 +++++++++++++++++++++++++++++++++++++-
 6 files changed, 80 insertions(+), 59 deletions(-)

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2.47.2