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| author | Joonsoo Kim <js1304@gmail.com> | 2016-01-14 15:20:48 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-14 16:00:49 -0800 |
| commit | 7546934570f48283b7fe64a56d1c984fcb1e341e (patch) | |
| tree | 113bc8e01f86b8e7bc171fc285f621ac5c4de064 | |
| parent | a8ae49917077facbe4ed7b3a89bf025b1cefa0ed (diff) | |
| download | linux-7546934570f48283b7fe64a56d1c984fcb1e341e.tar.gz linux-7546934570f48283b7fe64a56d1c984fcb1e341e.tar.bz2 linux-7546934570f48283b7fe64a56d1c984fcb1e341e.zip | |
mm/compaction.c: __compact_pgdat() code cleanuup
This patch uses is_via_compact_memory() to distinguish compaction from
sysfs or sysctl. And, this patch also reduces indentation on
compaction_defer_reset() by filtering these cases first before checking
watermark.
There is no functional change.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/compaction.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index ac6c6943d2ce..585de54dbe8c 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1658,14 +1658,15 @@ static void __compact_pgdat(pg_data_t *pgdat, struct compact_control *cc) !compaction_deferred(zone, cc->order)) compact_zone(zone, cc); - if (cc->order > 0) { - if (zone_watermark_ok(zone, cc->order, - low_wmark_pages(zone), 0, 0)) - compaction_defer_reset(zone, cc->order, false); - } - VM_BUG_ON(!list_empty(&cc->freepages)); VM_BUG_ON(!list_empty(&cc->migratepages)); + + if (is_via_compact_memory(cc->order)) + continue; + + if (zone_watermark_ok(zone, cc->order, + low_wmark_pages(zone), 0, 0)) + compaction_defer_reset(zone, cc->order, false); } } |