The patch titled
Subject: mm/compaction: cleanup on compaction_deferred
has been added to the -mm tree. Its filename is
mm-compaction-cleanup-on-compaction_deferred.patch
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From: Gavin Shan <shangw@xxxxxxxxxxxxxxxxxx>
Subject: mm/compaction: cleanup on compaction_deferred
When CONFIG_COMPACTION is enabled, compaction_deferred() tries to
recalculate the deferred limit again, which isn't necessary.
When CONFIG_COMPACTION is disabled, compaction_deferred() should return
"true" or "false" since it has "bool" for its return value.
Signed-off-by: Gavin Shan <shangw@xxxxxxxxxxxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/compaction.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN include/linux/compaction.h~mm-compaction-cleanup-on-compaction_deferred include/linux/compaction.h
--- a/include/linux/compaction.h~mm-compaction-cleanup-on-compaction_deferred
+++ a/include/linux/compaction.h
@@ -77,7 +77,7 @@ static inline bool compaction_deferred(s
if (++zone->compact_considered > defer_limit)
zone->compact_considered = defer_limit;
- return zone->compact_considered < (1UL << zone->compact_defer_shift);
+ return zone->compact_considered < defer_limit;
}
#else
@@ -104,7 +104,7 @@ static inline void defer_compaction(stru
static inline bool compaction_deferred(struct zone *zone, int order)
{
- return 1;
+ return true;
}
#endif /* CONFIG_COMPACTION */
_
Subject: Subject: mm/compaction: cleanup on compaction_deferred
Patches currently in -mm which might be from shangw@xxxxxxxxxxxxxxxxxx are
mm-slab-remove-duplicate-check.patch
mm-buddy-cleanup-on-should_fail_alloc_page.patch
mm-compaction-cleanup-on-compaction_deferred.patch
mm-buddy-get-the-allownodes-for-dump-at-once.patch
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