[PATCH V4,0/3] mm: compaction: proactive compaction trigger by user

[Charan Teja Reddy <charante@codeaurora.org>]

These patches support triggering of proactive compaction by user on write
to the /proc/sys/vm/compaction_proactiveness.

Changes in V4:
  -- Changed the code as the 'proactive_defer' counter is removed.
  -- No changes in the logic of triggering the proactive compaction.
  -- Removed the 'proactive_defer' counter.

Changes in V3:
  -- Fixed review comments from Vlastimil and others.
  -- Fixed wake up logic when compaction_proactiveness is zero.
  -- https://lore.kernel.org/patchwork/patch/1438211/

Changes in V2:
  -- remove /proc/../proactive_compact_memory interface trigger for proactive compaction
  -- Intention is same that add a way to trigger proactive compaction by user.
  -- https://lore.kernel.org/patchwork/patch/1431283/

Changes in V1:
  -- Created the new /proc/sys/vm/proactive_compact_memory in
     interface to trigger proactive compaction from user 
  -- https://lore.kernel.org/lkml/1619098678-8501-1-git-send-email-charante@codeaurora.org/


Charan Teja Reddy (3):
  mm: compaction:  optimize proactive compaction deferrals
  mm: compaction: support triggering of proactive compaction by user
  mm: compaction: fix wakeup logic of proactive compaction

 Documentation/admin-guide/sysctl/vm.rst |  3 +-
 include/linux/compaction.h              |  2 ++
 include/linux/mmzone.h                  |  1 +
 kernel/sysctl.c                         |  2 +-
 mm/compaction.c                         | 61 +++++++++++++++++++++++++++------
 5 files changed, 56 insertions(+), 13 deletions(-)

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