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[PATCH 0/7] mm: vmscan: fix kswapd writeback regression v2

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Hi Andrew,

here are some minor updates to the series. It's nothing functional,
just code comments and updates to the changelogs from the mailing list
discussions. Since we don't have a good delta system for changelogs
I'm resending the entire thing as a drop-in replacement for -mm.

These are the changes:

1. mm: vmscan: scan dirty pages even in laptop mode

   Mel tested the entire series, not just one patch. Move his test
   conclusions from 'mm: vmscan: remove old flusher wakeup from direct
   reclaim' into the series header in patch 1. Also, reflect the fact
   that these test results are indeed Mel's, not mine.

2. mm: vmscan: kick flushers when we encounter dirty pages on the LRU

   Mention the trade-off between flush-the-world/flush-the-scanwindow
   type wakeups in the changelog, as per the mailing list discussion.

3. mm: vmscan: move dirty pages out of the way until they're flushed

   Correct the last paragraph in the changelog. We're not activating
   dirty/writeback pages after they have rotated twice; they are being
   activated straight away to get them out of the reclaimer's face.
   This was a vestige from an earlier version of the patch.

4. mm: vmscan: move dirty pages out of the way until they're flushed fix

   Code comment fixlet to explain why we activate dirty/writeback pages.

Thanks!

 include/linux/mm_inline.h        |  7 ++++
 include/linux/mmzone.h           |  2 -
 include/linux/writeback.h        |  2 +-
 include/trace/events/writeback.h |  2 +-
 mm/swap.c                        |  9 +++--
 mm/vmscan.c                      | 77 ++++++++++++++++++--------------------
 6 files changed, 50 insertions(+), 49 deletions(-)

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[PATCH 0/7] mm: vmscan: fix kswapd writeback regression v2 Johannes Weiner <hannes@cmpxchg.org> - 2017-02-02 20:30 +0100
  [PATCH 7/7] mm: vmscan: move dirty pages out of the way until they're flushed fix Johannes Weiner <hannes@cmpxchg.org> - 2017-02-02 20:30 +0100
  [PATCH 4/7] mm: vmscan: remove old flusher wakeup from direct reclaim path Johannes Weiner <hannes@cmpxchg.org> - 2017-02-02 20:30 +0100
  [PATCH 6/7] mm: vmscan: move dirty pages out of the way until they're flushed Johannes Weiner <hannes@cmpxchg.org> - 2017-02-02 20:30 +0100
    Re: [PATCH 6/7] mm: vmscan: move dirty pages out of the way until they're flushed "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2017-02-03 08:50 +0100
      Re: [PATCH 6/7] mm: vmscan: move dirty pages out of the way until  they're flushed Michal Hocko <mhocko@kernel.org> - 2017-02-03 16:20 +0100
  Re: [PATCH 0/7] mm: vmscan: fix kswapd writeback regression v2 Andrew Morton <akpm@linux-foundation.org> - 2017-02-02 23:50 +0100

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