[PATCH 03/12] mm: compaction: remove unneeded assignment to isolate_start_pfn

[Miaohe Lin]

isolate_start_pfn is unused when cc->nr_freepages ! = 0. Otherwise
cc->free_pfn will overwrite it unconditionally. So we should remove
this unneeded and somewhat misleading assignment.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 mm/compaction.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index f9e628a5306a..ee2ddf77191f 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1586,7 +1586,7 @@ static void isolate_freepages(struct compact_control *cc)
 	unsigned int stride;
 
 	/* Try a small search of the free lists for a candidate */
-	isolate_start_pfn = fast_isolate_freepages(cc);
+	fast_isolate_freepages(cc);
 	if (cc->nr_freepages)
 		goto splitmap;
 
-- 
2.23.0