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The usual shower of hotfixes.

Chris's memcg patches aren't actually fixes - they're mature but a few
niggling review issues were late to arrive.

The ocfs2 fixes are quite old - those took some time to get
reviewer attention.

18 patches, based on 4ea655343ce4180fe9b2c7ec8cb8ef9884a47901.


Subsystems affected by this patch series:

  ocfs2
  hotfixes
  mm/memcg
  mm/slab-generic

Subsystem: ocfs2

    Jia Guo <guojia12@xxxxxxxxxx>:
      ocfs2: clear zero in unaligned direct IO

    Jia-Ju Bai <baijiaju1990@xxxxxxxxx>:
      fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()
      fs: ocfs2: fix a possible null-pointer dereference in ocfs2_write_end_nolock()
      fs: ocfs2: fix a possible null-pointer dereference in ocfs2_info_scan_inode_alloc()

Subsystem: hotfixes

    Will Deacon <will@xxxxxxxxxx>:
      panic: ensure preemption is disabled during panic()

    Anshuman Khandual <anshuman.khandual@xxxxxxx>:
      mm/memremap: drop unused SECTION_SIZE and SECTION_MASK

    Tejun Heo <tj@xxxxxxxxxx>:
      writeback: fix use-after-free in finish_writeback_work()

    Yi Wang <wang.yi59@xxxxxxxxxx>:
      mm: fix -Wmissing-prototypes warnings

    Baoquan He <bhe@xxxxxxxxxx>:
      memcg: only record foreign writebacks with dirty pages when memcg is not disabled

    Michal Hocko <mhocko@xxxxxxxx>:
      kernel/sysctl.c: do not override max_threads provided by userspace

    Vitaly Wool <vitalywool@xxxxxxxxx>:
      mm/z3fold.c: claim page in the beginning of free

    Qian Cai <cai@xxxxxx>:
      mm/page_alloc.c: fix a crash in free_pages_prepare()

    Dan Carpenter <dan.carpenter@xxxxxxxxxx>:
      mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()

Subsystem: mm/memcg

    Chris Down <chris@xxxxxxxxxxxxxx>:
      mm, memcg: proportional memory.{low,min} reclaim
      mm, memcg: make memory.emin the baseline for utilisation determination
      mm, memcg: make scan aggression always exclude protection

Subsystem: mm/slab-generic

    Vlastimil Babka <vbabka@xxxxxxx>:
    Patch series "guarantee natural alignment for kmalloc()", v2:
      mm, sl[ou]b: improve memory accounting
      mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)

 Documentation/admin-guide/cgroup-v2.rst      |   20 +-
 Documentation/core-api/memory-allocation.rst |    4 
 fs/fs-writeback.c                            |    9 -
 fs/ocfs2/aops.c                              |   25 +++
 fs/ocfs2/ioctl.c                             |    2 
 fs/ocfs2/xattr.c                             |   56 +++----
 include/linux/memcontrol.h                   |   67 ++++++---
 include/linux/slab.h                         |    4 
 kernel/fork.c                                |    4 
 kernel/panic.c                               |    1 
 mm/memcontrol.c                              |    5 
 mm/memremap.c                                |    2 
 mm/page_alloc.c                              |    8 -
 mm/shuffle.c                                 |    2 
 mm/slab_common.c                             |   19 ++
 mm/slob.c                                    |   62 ++++++--
 mm/slub.c                                    |   14 +
 mm/sparse.c                                  |    2 
 mm/vmpressure.c                              |   20 +-
 mm/vmscan.c                                  |  198 +++++++++++++++++----------
 mm/z3fold.c                                  |   10 +
 21 files changed, 363 insertions(+), 171 deletions(-)






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