[patch 133/155] mm/compaction.c: clean code by removing unnecessary assignment

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From: Mateusz Nosek <mateusznosek0@xxxxxxxxx>
Subject: mm/compaction.c: clean code by removing unnecessary assignment

Previously 0 was assigned to variable 'last_migrated_pfn'.  But the
variable is not read after that, so the assignment can be removed.

Link: http://lkml.kernel.org/r/20200318174509.15021-1-mateusznosek0@xxxxxxxxx
Signed-off-by: Mateusz Nosek <mateusznosek0@xxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

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

--- a/mm/compaction.c~mm-compactionc-clean-code-by-removing-unnecessary-assignment
+++ a/mm/compaction.c
@@ -2182,7 +2182,6 @@ compact_zone(struct compact_control *cc,
 			ret = COMPACT_CONTENDED;
 			putback_movable_pages(&cc->migratepages);
 			cc->nr_migratepages = 0;
-			last_migrated_pfn = 0;
 			goto out;
 		case ISOLATE_NONE:
 			if (update_cached) {
_




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