[PATCH 3.14 107/122] mm/compaction: clean up unused code lines

From: Greg Kroah-Hartman
Date: Wed Nov 19 2014 - 16:13:31 EST

3.14-stable review patch. If anyone has any objections, please let me know.


From: Heesub Shin <heesub.shin@xxxxxxxxxxx>

commit 13fb44e4b0414d7e718433a49e6430d5b76bd46e upstream.

Remove code lines currently not in use or never called.

Signed-off-by: Heesub Shin <heesub.shin@xxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Dongjun Shin <d.j.shin@xxxxxxxxxxx>
Cc: Sunghwan Yun <sunghwan.yun@xxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Cc: Michal Nazarewicz <mina86@xxxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Dongjun Shin <d.j.shin@xxxxxxxxxxx>
Cc: Sunghwan Yun <sunghwan.yun@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

mm/compaction.c | 10 ----------
1 file changed, 10 deletions(-)

--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -208,12 +208,6 @@ static bool compact_checklock_irqsave(sp
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)
@@ -736,7 +730,6 @@ static void isolate_freepages(struct zon

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

* Take care when isolating in last pageblock of a zone which
@@ -1165,9 +1158,6 @@ static void __compact_pgdat(pg_data_t *p
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);


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