linux-kernel - [PATCH] mm/z3fold.c: remove useless code in z3fold_page

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Date:   Thu, 29 Aug 2019 14:13:12 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] mm/z3fold.c: remove useless code in z3fold_page_isolate

Remove duplicate and useless code.

Reported-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 mm/z3fold.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 75b7962439ff..044b7075d0ba 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -1400,15 +1400,13 @@ static bool z3fold_page_isolate(struct page *page, isolate_mode_t mode)
 			 * can call the release logic.
 			 */
 			if (unlikely(kref_put(&zhdr->refcount,
-					      release_z3fold_page_locked))) {
+					      release_z3fold_page_locked)))
 				/*
 				 * If we get here we have kref problems, so we
 				 * should freak out.
 				 */
 				WARN(1, "Z3fold is experiencing kref problems\n");
-				z3fold_page_unlock(zhdr);
-				return false;
-			}
+
 			z3fold_page_unlock(zhdr);
 			return false;
 		}
-- 
2.23.0