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| author |   Mel Gorman <mgorman@techsingularity.net> | 2016-07-28 15:46:50 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-28 16:07:41 -0700 |
| commit | e6cbd7f2efb433d717af72aa8510a9db6f7a7e05 (patch) | |
| tree | 579fde32463c0885123d14a119dfecf968b26a16 /include/linux/mmzone.h | |
| parent | mm, vmscan: add classzone information to tracepoints (diff) | |
| download | linux-dev-e6cbd7f2efb433d717af72aa8510a9db6f7a7e05.tar.xz linux-dev-e6cbd7f2efb433d717af72aa8510a9db6f7a7e05.zip | |
mm, page_alloc: remove fair zone allocation policy
The fair zone allocation policy interleaves allocation requests between
zones to avoid an age inversion problem whereby new pages are reclaimed
to balance a zone. Reclaim is now node-based so this should no longer
be an issue and the fair zone allocation policy is not free. This patch
removes it.
Link: http://lkml.kernel.org/r/1467970510-21195-30-git-send-email-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/mmzone.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index e19c081c794e..bd33e6f1bed0 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -110,7 +110,6 @@ struct zone_padding { enum zone_stat_item { /* First 128 byte cacheline (assuming 64 bit words) */ NR_FREE_PAGES, - NR_ALLOC_BATCH, NR_ZONE_LRU_BASE, /* Used only for compaction and reclaim retry */ NR_ZONE_LRU_ANON = NR_ZONE_LRU_BASE, NR_ZONE_LRU_FILE, @@ -516,10 +515,6 @@ struct zone { atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; } ____cacheline_internodealigned_in_smp; -enum zone_flags { - ZONE_FAIR_DEPLETED, /* fair zone policy batch depleted */ -}; - enum pgdat_flags { PGDAT_CONGESTED, /* pgdat has many dirty pages backed by * a congested BDI |