[PATCH 0/4] followups to reintroduce compaction feedback for OOM decisions

From: Vlastimil Babka
Date: Mon Sep 26 2016 - 12:20:54 EST

Reviews of series "reintroduce compaction feedback for OOM decisions" [1]
resulted in some followup patches and Michal suggested posting them in a new
threads, so here it goes.

Patch 1 is meant to be squashed into the following patch in mmotm:

Patch 2 is a cleanup for consistency. Patches 3 and 4 deal with the last
(hopefully) remaining heuristic in the reclaim/compaction-vs-OOM scenario,
which is the fragmentation index.

[1] http://www.spinics.net/lists/linux-mm/msg113133.html

Vlastimil Babka (4):
mm, compaction: more reliably increase direct compaction priority-fix
mm, page_alloc: pull no_progress_loops update to
mm, compaction: ignore fragindex from compaction_zonelist_suitable()
mm, compaction: restrict fragindex to costly orders

mm/compaction.c | 42 ++++++++++++++++++++++++------------------
mm/page_alloc.c | 47 ++++++++++++++++++++++++-----------------------
2 files changed, 48 insertions(+), 41 deletions(-)