From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f69.google.com (mail-pa0-f69.google.com [209.85.220.69]) by kanga.kvack.org (Postfix) with ESMTP id 345C76B0253 for ; Fri, 14 Oct 2016 09:55:10 -0400 (EDT) Received: by mail-pa0-f69.google.com with SMTP id tz10so113028782pab.3 for ; Fri, 14 Oct 2016 06:55:10 -0700 (PDT) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com. [58.251.152.64]) by mx.google.com with ESMTPS id t9si15583332pac.180.2016.10.14.06.55.07 for (version=TLS1 cipher=AES128-SHA bits=128/128); Fri, 14 Oct 2016 06:55:09 -0700 (PDT) From: zhongjiang Subject: [PATCH] z3fold: remove the unnecessary limit in z3fold_compact_page Date: Fri, 14 Oct 2016 21:35:25 +0800 Message-ID: <1476452125-22059-1-git-send-email-zhongjiang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: vitalywool@gmail.com, david@fromorbit.com, sjenning@redhat.com, ddstreet@ieee.org, akpm@linux-foundation.org, mhocko@kernel.org, vbabka@suse.cz, linux-mm@kvack.org, linux-kernel@vger.kernel.org From: zhong jiang z3fold compact page has nothing with the last_chunks. even if last_chunks is not free, compact page will proceed. The patch just remove the limit without functional change. Signed-off-by: zhong jiang --- mm/z3fold.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/z3fold.c b/mm/z3fold.c index e8fc216..4668e1c 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -258,8 +258,7 @@ static int z3fold_compact_page(struct z3fold_header *zhdr) if (!test_bit(MIDDLE_CHUNK_MAPPED, &page->private) && - zhdr->middle_chunks != 0 && - zhdr->first_chunks == 0 && zhdr->last_chunks == 0) { + zhdr->middle_chunks != 0 && zhdr->first_chunks == 0) { memmove(beg + ZHDR_SIZE_ALIGNED, beg + (zhdr->start_middle << CHUNK_SHIFT), zhdr->middle_chunks << CHUNK_SHIFT); -- 1.8.3.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org