Merge tag 'mm-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull more MM updates from Andrew Morton:

 - Two follow-on fixes for the post-5.19 series "Use pageblock_order for
   cma and alloc_contig_range alignment", from Zi Yan.

 - A series of z3fold cleanups and fixes from Miaohe Lin.

 - Some memcg selftests work from Michal Koutný <mkoutny@suse.com>

 - Some swap fixes and cleanups from Miaohe Lin

 - Several individual minor fixups

* tag 'mm-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (25 commits)
  mm/shmem.c: suppress shift warning
  mm: Kconfig: reorganize misplaced mm options
  mm: kasan: fix input of vmalloc_to_page()
  mm: fix is_pinnable_page against a cma page
  mm: filter out swapin error entry in shmem mapping
  mm/shmem: fix infinite loop when swap in shmem error at swapoff time
  mm/madvise: free hwpoison and swapin error entry in madvise_free_pte_range
  mm/swapfile: fix lost swap bits in unuse_pte()
  mm/swapfile: unuse_pte can map random data if swap read fails
  selftests: memcg: factor out common parts of memory.{low,min} tests
  selftests: memcg: remove protection from top level memcg
  selftests: memcg: adjust expected reclaim values of protected cgroups
  selftests: memcg: expect no low events in unprotected sibling
  selftests: memcg: fix compilation
  mm/z3fold: fix z3fold_page_migrate races with z3fold_map
  mm/z3fold: fix z3fold_reclaim_page races with z3fold_free
  mm/z3fold: always clear PAGE_CLAIMED under z3fold page lock
  mm/z3fold: put z3fold page back into unbuddied list when reclaim or migration fails
  revert "mm/z3fold.c: allow __GFP_HIGHMEM in z3fold_alloc"
  mm/z3fold: throw warning on failure of trylock_page in z3fold_alloc
  ...

diff --cc MAINTAINERS
Simple merge

diff --cc include/linux/mm.h
Simple merge

diff --cc init/Kconfig
Simple merge

diff --cc lib/Kconfig.debug
Simple merge

diff --cc mm/Kconfig.debug
index 5bd5bb0,197eb28..ce8dded
--- 1/mm/Kconfig.debug
--- 2/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@@ -45,6 -45,37 +45,39 @@@ config DEBUG_PAGEALLOC_ENABLE_DEFAUL
          Enable debug page memory allocations by default? This value
          can be overridden by debug_pagealloc=off|on.
  
+ config DEBUG_SLAB
+       bool "Debug slab memory allocations"
+       depends on DEBUG_KERNEL && SLAB
+       help
+         Say Y here to have the kernel do limited verification on memory
+         allocation as well as poisoning memory on free to catch use of freed
+         memory. This can make kmalloc/kfree-intensive workloads much slower.
+ 
+ config SLUB_DEBUG
+       default y
+       bool "Enable SLUB debugging support" if EXPERT
+       depends on SLUB && SYSFS
++      select STACKDEPOT if STACKTRACE_SUPPORT
+       help
+         SLUB has extensive debug support features. Disabling these can
+         result in significant savings in code size. This also disables
+         SLUB sysfs support. /sys/slab will not exist and there will be
+         no support for cache validation etc.
+ 
+ config SLUB_DEBUG_ON
+       bool "SLUB debugging on by default"
+       depends on SLUB && SLUB_DEBUG
++      select STACKDEPOT_ALWAYS_INIT if STACKTRACE_SUPPORT
+       default n
+       help
+         Boot with debugging on by default. SLUB boots by default with
+         the runtime debug capabilities switched off. Enabling this is
+         equivalent to specifying the "slub_debug" parameter on boot.
+         There is no support for more fine grained debug control like
+         possible with slub_debug=xxx. SLUB debugging may be switched
+         off in a kernel built with CONFIG_SLUB_DEBUG_ON by specifying
+         "slub_debug=-".
+ 
  config PAGE_OWNER
        bool "Track page owner"
        depends on DEBUG_KERNEL && STACKTRACE_SUPPORT

diff --cc mm/memory.c
Simple merge

diff --cc mm/page_alloc.c
Simple merge

diff --cc mm/shmem.c
Simple merge

diff --cc mm/swapfile.c
Simple merge