[PATCH 0/5] Improve page poisoning implementation

[Matthew Wilcox <willy@infradead.org>]

From: "Matthew Wilcox (Oracle)" <willy@infradead.org>

I really don't like that this feature is called page poisoning.
We already had something called page poisoning and it's when you detect
a memory error in a page.  This is just uninitialised pages.  I don't
have the time right now to do that renaming, so just fix some of the
other problems I found with the implementation.

This hasn't been checked out by the build-bots yet, so there may be some
missing conversions.

Matthew Wilcox (Oracle) (5):
  mm: Constify a lot of struct page arguments
  mm: Rename PF_POISONED_PAGE to page_poison_check
  mm: Remove casting away of constness
  mm: Check for page poison in both page_to_nid implementations
  mm: Check page poison before finding a head page

 include/linux/mm.h              | 32 +++++++-------
 include/linux/mm_types.h        | 11 +----
 include/linux/mmdebug.h         |  4 +-
 include/linux/page-flags.h      | 74 ++++++++++++++++-----------------
 include/linux/page_owner.h      |  6 +--
 include/linux/page_ref.h        |  4 +-
 include/linux/pageblock-flags.h |  2 +-
 include/linux/pagemap.h         |  4 +-
 include/linux/swap.h            |  2 +-
 mm/debug.c                      |  6 +--
 mm/hugetlb.c                    |  6 +--
 mm/page_alloc.c                 | 12 +++---
 mm/page_owner.c                 |  2 +-
 mm/sparse.c                     |  1 +
 mm/swapfile.c                   |  6 +--
 mm/util.c                       |  6 +--
 16 files changed, 85 insertions(+), 93 deletions(-)

-- 
2.25.1