From patchwork Sat Mar 20 09:36:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 12152379 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 A1FC6C433E0 for ; Sat, 20 Mar 2021 09:38:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 49FF1619AD for ; Sat, 20 Mar 2021 09:38:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 49FF1619AD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id DEC348D0017; Sat, 20 Mar 2021 05:38:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D4F458D000A; Sat, 20 Mar 2021 05:38:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B79798D0017; Sat, 20 Mar 2021 05:38:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0125.hostedemail.com [216.40.44.125]) by kanga.kvack.org (Postfix) with ESMTP id 956618D000A for ; Sat, 20 Mar 2021 05:38:11 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 6034A1801A814 for ; Sat, 20 Mar 2021 09:38:11 +0000 (UTC) X-FDA: 77939751582.24.5CA7979 Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) by imf03.hostedemail.com (Postfix) with ESMTP id BFB73C0001F7 for ; Sat, 20 Mar 2021 09:38:10 +0000 (UTC) Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4F2bH71j61z9186; Sat, 20 Mar 2021 17:36:03 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Sat, 20 Mar 2021 17:37:48 +0800 From: Miaohe Lin To: CC: , , , , Subject: [PATCH 1/5] mm/migrate.c: remove unnecessary VM_BUG_ON_PAGE on putback_movable_page() Date: Sat, 20 Mar 2021 05:36:57 -0400 Message-ID: <20210320093701.12829-2-linmiaohe@huawei.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20210320093701.12829-1-linmiaohe@huawei.com> References: <20210320093701.12829-1-linmiaohe@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: BFB73C0001F7 X-Stat-Signature: j1zoj7z4co8p1tjfbyhh11th7xzxtwfg Received-SPF: none (huawei.com>: No applicable sender policy available) receiver=imf03; identity=mailfrom; envelope-from=""; helo=szxga07-in.huawei.com; client-ip=45.249.212.35 X-HE-DKIM-Result: none/none X-HE-Tag: 1616233090-405292 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: The !PageLocked() check is implicitly done in PageMovable(). Remove this explicit one. Signed-off-by: Miaohe Lin --- mm/migrate.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index 47df0df8f21a..e4ca5ef508ea 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -146,7 +146,6 @@ void putback_movable_page(struct page *page) struct address_space *mapping; VM_BUG_ON_PAGE(!PageLocked(page), page); - VM_BUG_ON_PAGE(!PageMovable(page), page); VM_BUG_ON_PAGE(!PageIsolated(page), page); mapping = page_mapping(page);