From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5DF3DC433F5 for ; Fri, 4 Mar 2022 09:35:17 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8F6428D000A; Fri, 4 Mar 2022 04:35:07 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 8570F8D0005; Fri, 4 Mar 2022 04:35:07 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6ABA68D000A; Fri, 4 Mar 2022 04:35:07 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 4F8128D0005 for ; Fri, 4 Mar 2022 04:35:07 -0500 (EST) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 065BE180FF4A4 for ; Fri, 4 Mar 2022 09:35:07 +0000 (UTC) X-FDA: 79206195054.26.9C1FAED Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by imf21.hostedemail.com (Postfix) with ESMTP id 475C11C0012 for ; Fri, 4 Mar 2022 09:35:06 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4K92hm6g18zBrt1; Fri, 4 Mar 2022 17:33:12 +0800 (CST) Received: from huawei.com (10.175.124.27) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Fri, 4 Mar 2022 17:35:03 +0800 From: Miaohe Lin To: CC: , , , , , , , , , , , , , , , , , , Subject: [PATCH 07/16] mm/migration: use helper macro min_t in do_pages_stat Date: Fri, 4 Mar 2022 17:34:00 +0800 Message-ID: <20220304093409.25829-8-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20220304093409.25829-1-linmiaohe@huawei.com> References: <20220304093409.25829-1-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 475C11C0012 X-Stat-Signature: gpwzkk86m84kj9dpyhqbgp1dmw8bd91f Authentication-Results: imf21.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf21.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-HE-Tag: 1646386506-570749 Content-Transfer-Encoding: quoted-printable 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: We could use helper macro min_t to help set the chunk_nr to simplify the code. Signed-off-by: Miaohe Lin --- mm/migrate.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index bc79d7338780..c84eec19072a 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1858,9 +1858,7 @@ static int do_pages_stat(struct mm_struct *mm, unsi= gned long nr_pages, while (nr_pages) { unsigned long chunk_nr; =20 - chunk_nr =3D nr_pages; - if (chunk_nr > DO_PAGES_STAT_CHUNK_NR) - chunk_nr =3D DO_PAGES_STAT_CHUNK_NR; + chunk_nr =3D min_t(unsigned long, nr_pages, DO_PAGES_STAT_CHUNK_NR); =20 if (in_compat_syscall()) { if (get_compat_pages_array(chunk_pages, pages, --=20 2.23.0