Received: by 2002:a05:6a10:6744:0:0:0:0 with SMTP id w4csp363809pxu; Thu, 15 Oct 2020 06:04:13 -0700 (PDT) X-Google-Smtp-Source: ABdhPJybOqOxvWNX+YuYvBQIAhen5OcsO/BszbzzyfjeCMwWqNehWczOLod+IjBFNSwEn2QwIi0O X-Received: by 2002:a17:906:5596:: with SMTP id y22mr4286867ejp.189.1602767053306; Thu, 15 Oct 2020 06:04:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1602767053; cv=none; d=google.com; s=arc-20160816; b=WWj4kWnSUrG6fZ2ldK7GbLtCWEqjPgGIuc8MUvvy65xZHXsYGw235GoL+2PIireCxp sTsavv3o0DJ7AltnBjG/XPYXjrwQHamil6Nrzy/GsJ12t9Sf39B5yZAsNzrwglB2Vlgn Hm291EzJahFKzx6cVI/ZM2+7Fa8Rx5iyxfUEPI1EQyGPuKU1v7Zlu66EL2/HrebXs5lA V7EJnvwbjJyCI3tNlFOFwzsvtln8aR6JTvY26fTPdzvSnEGtJg9iWphmwLXk5mlXZVTy lV3ItwNpB8XivWV/6T1GRkn58xaODEwrW23CtdQlmcnQKOGSi0zzAKrXLLqlHphV18LP zcmQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=VwBWXHfdrgguwC9qZYrV0aQgQOUZRAVBKrBG2KcrJ6o=; b=yjyUs4MmyDpwV0BVP28SPC6bAYJ8a2FraYaWhTJO4PbGc5Gs0FXnPgmHBtkpSPlmB4 E49HeGY4kfgoxPxT2sSpmoFS/xy5ge/M/owA3JktYfwOAnkpAbi05Hfow7dKdFFYXwxN fa5ytlptoCnlhpL1dQOCfmZshdcOfAYFM6xIujZWx53kpyxCYCJh7i/+AqAR//pCodVv xBQMt8RfRmFlsw/caf21EnUBJJb2LOVy0tMZE/LlKVCGLmOFIDT84RHCx40PlcQ40YpA D44VyfInZ3dIob1ynKWo3zvbQ/xyheR4Kcy3D5qsVkfSrxlPmn5VPS0Q98LixxAyKMrD ipug== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id x8si1879532edr.376.2020.10.15.06.03.36; Thu, 15 Oct 2020 06:04:13 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727843AbgJONBc (ORCPT + 99 others); Thu, 15 Oct 2020 09:01:32 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:54652 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726121AbgJONBc (ORCPT ); Thu, 15 Oct 2020 09:01:32 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 98E657D511BA10B261F0; Thu, 15 Oct 2020 21:01:29 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Thu, 15 Oct 2020 21:01:19 +0800 From: Miaohe Lin To: , , , CC: , , Subject: [PATCH] zsmalloc: Rework the list_add code in insert_zspage() Date: Thu, 15 Oct 2020 09:01:07 -0400 Message-ID: <20201015130107.65195-1-linmiaohe@huawei.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Rework the list_add code to make it more readable and simplicity. Signed-off-by: Miaohe Lin --- mm/zsmalloc.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 918c7b019b3d..b03bee2e1b5f 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -730,13 +730,10 @@ static void insert_zspage(struct size_class *class, * We want to see more ZS_FULL pages and less almost empty/full. * Put pages with higher ->inuse first. */ - if (head) { - if (get_zspage_inuse(zspage) < get_zspage_inuse(head)) { - list_add(&zspage->list, &head->list); - return; - } - } - list_add(&zspage->list, &class->fullness_list[fullness]); + if (head && get_zspage_inuse(zspage) < get_zspage_inuse(head)) + list_add(&zspage->list, &head->list); + else + list_add(&zspage->list, &class->fullness_list[fullness]); } /* -- 2.19.1