[PATCH] mm: compaction: remove duplicate !list_empty(&sublist) check

The list_splice_tail(&sublist, freelist) also do
!list_empty(&sublist) check, so remove the duplicate call.

Signed-off-by: Liu Xiang <redacted>
---
  mm/compaction.c | 6 ++----
  1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 84fde270a..5b1dc832f 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c

@@ -1297,8 +1297,7 @@ move_freelist_head(struct list_head *freelist, struct page *freepage)
  
  	if (!list_is_last(freelist, &freepage->lru)) {
  		list_cut_before(&sublist, freelist, &freepage->lru);
-		if (!list_empty(&sublist))
-			list_splice_tail(&sublist, freelist);
+		list_splice_tail(&sublist, freelist);
  	}
  }
  

@@ -1315,8 +1314,7 @@ move_freelist_tail(struct list_head *freelist, struct page *freepage)
  
  	if (!list_is_first(freelist, &freepage->lru)) {
  		list_cut_position(&sublist, freelist, &freepage->lru);
-		if (!list_empty(&sublist))
-			list_splice_tail(&sublist, freelist);
+		list_splice_tail(&sublist, freelist);
  	}
  }