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Subject[PATCH 1/2] mm/compaction: clean up unused code lines
Date
This commit removes code lines currently not in use or never called.

Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
Cc: Dongjun Shin <d.j.shin@samsung.com>
Cc: Sunghwan Yun <sunghwan.yun@samsung.com>
---
mm/compaction.c | 10 ----------
1 file changed, 10 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 9635083..1ef9144 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -208,12 +208,6 @@ static bool compact_checklock_irqsave(spinlock_t *lock, unsigned long *flags,
return true;
}

-static inline bool compact_trylock_irqsave(spinlock_t *lock,
- unsigned long *flags, struct compact_control *cc)
-{
- return compact_checklock_irqsave(lock, flags, false, cc);
-}
-
/* Returns true if the page is within a block suitable for migration to */
static bool suitable_migration_target(struct page *page)
{
@@ -728,7 +722,6 @@ static void isolate_freepages(struct zone *zone,
continue;

/* Found a block suitable for isolating free pages from */
- isolated = 0;

/*
* As pfn may not start aligned, pfn+pageblock_nr_page
@@ -1160,9 +1153,6 @@ static void __compact_pgdat(pg_data_t *pgdat, struct compact_control *cc)
if (zone_watermark_ok(zone, cc->order,
low_wmark_pages(zone), 0, 0))
compaction_defer_reset(zone, cc->order, false);
- /* Currently async compaction is never deferred. */
- else if (cc->sync)
- defer_compaction(zone, cc->order);
}

VM_BUG_ON(!list_empty(&cc->freepages));
--
1.8.3.2


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