linux-kernel - [PATCH] mm/compaction.c: Clean code by removing unnecessary assignment

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Date:   Wed, 18 Mar 2020 18:45:09 +0100
From:   mateusznosek0@...il.com
To:     linux-kernel@...r.kernel.org, linux-mm@...ck.org
Cc:     Mateusz Nosek <mateusznosek0@...il.com>, akpm@...ux-foundation.org
Subject: [PATCH] mm/compaction.c: Clean code by removing unnecessary assignment

From: Mateusz Nosek <mateusznosek0@...il.com>

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

Signed-off-by: Mateusz Nosek <mateusznosek0@...il.com>
---
 mm/compaction.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 827d8a2b3164..4576d6c5afb5 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -2183,7 +2183,6 @@ compact_zone(struct compact_control *cc, struct capture_control *capc)
 			ret = COMPACT_CONTENDED;
 			putback_movable_pages(&cc->migratepages);
 			cc->nr_migratepages = 0;
-			last_migrated_pfn = 0;
 			goto out;
 		case ISOLATE_NONE:
 			if (update_cached) {
-- 
2.17.1