From patchwork Sat Aug 7 09:36:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 12424251 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A84FC4338F for ; Sat, 7 Aug 2021 09:36:24 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E64966113C for ; Sat, 7 Aug 2021 09:36:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E64966113C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 16C156B0078; Sat, 7 Aug 2021 05:36:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0F4C26B007B; Sat, 7 Aug 2021 05:36:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 007F26B0078; Sat, 7 Aug 2021 05:36:22 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0041.hostedemail.com [216.40.44.41]) by kanga.kvack.org (Postfix) with ESMTP id D468B6B0071 for ; Sat, 7 Aug 2021 05:36:22 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 62AFA1C946 for ; Sat, 7 Aug 2021 09:36:22 +0000 (UTC) X-FDA: 78447779004.22.ED0E7F1 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by imf06.hostedemail.com (Postfix) with ESMTP id A97958020DAD for ; Sat, 7 Aug 2021 09:36:21 +0000 (UTC) Received: from dggeme703-chm.china.huawei.com (unknown [172.30.72.56]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4GhcY83Xztz828g; Sat, 7 Aug 2021 17:31:24 +0800 (CST) Received: from huawei.com (10.175.124.27) by dggeme703-chm.china.huawei.com (10.1.199.99) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Sat, 7 Aug 2021 17:36:18 +0800 From: Miaohe Lin To: CC: , , , , , , Subject: [PATCH 2/5] mm: gup: remove unneed local variable orig_refs Date: Sat, 7 Aug 2021 17:36:17 +0800 Message-ID: <20210807093620.21347-3-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210807093620.21347-1-linmiaohe@huawei.com> References: <20210807093620.21347-1-linmiaohe@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggeme703-chm.china.huawei.com (10.1.199.99) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: A97958020DAD Authentication-Results: imf06.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=huawei.com; spf=pass (imf06.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.189 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Stat-Signature: wbhzd838xdeumarixnwze9t9hrx5o5uu X-HE-Tag: 1628328981-97258 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Remove unneed local variable orig_refs since refs is unchanged now. Signed-off-by: Miaohe Lin Reviewed-by: David Hildenbrand --- mm/gup.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/gup.c b/mm/gup.c index 430495cb1b91..d6056dcab02c 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -117,8 +117,6 @@ __maybe_unused struct page *try_grab_compound_head(struct page *page, if (flags & FOLL_GET) return try_get_compound_head(page, refs); else if (flags & FOLL_PIN) { - int orig_refs = refs; - /* * Can't do FOLL_LONGTERM + FOLL_PIN gup fast path if not in a * right zone, so fail and let the caller fall back to the slow @@ -150,7 +148,7 @@ __maybe_unused struct page *try_grab_compound_head(struct page *page, page_ref_add(page, refs * (GUP_PIN_COUNTING_BIAS - 1)); mod_node_page_state(page_pgdat(page), NR_FOLL_PIN_ACQUIRED, - orig_refs); + refs); return page; }