From patchwork Fri Mar 4 09:33:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 12768807 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 D7BCDC433F5 for ; Fri, 4 Mar 2022 09:35:07 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3ECE78D0006; Fri, 4 Mar 2022 04:35:04 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 39ECB8D0005; Fri, 4 Mar 2022 04:35:04 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1A13C8D0006; Fri, 4 Mar 2022 04:35:04 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.27]) by kanga.kvack.org (Postfix) with ESMTP id EFEB28D0005 for ; Fri, 4 Mar 2022 04:35:03 -0500 (EST) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay12.hostedemail.com (Postfix) with ESMTP id C1125120A7D for ; Fri, 4 Mar 2022 09:35:03 +0000 (UTC) X-FDA: 79206194886.05.A8C756B Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by imf08.hostedemail.com (Postfix) with ESMTP id 0117816000D for ; Fri, 4 Mar 2022 09:35:02 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.56]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4K92fh0ZHZz9sYS; Fri, 4 Mar 2022 17:31:24 +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 17:34:59 +0800 From: Miaohe Lin To: CC: , , , , , , , , , , , , , , , , , , Subject: [PATCH 03/16] mm/migration: remove unneeded local variable page_lru Date: Fri, 4 Mar 2022 17:33:56 +0800 Message-ID: <20220304093409.25829-4-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 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-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 0117816000D X-Stat-Signature: a5apc3aw8uhwtz4nhh9ctirsjw6rwnnd Authentication-Results: imf08.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf08.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.189 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Rspam-User: X-HE-Tag: 1646386502-379671 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 can use page_is_file_lru() directly to help account the isolated pages to simplify the code a bit as same as local variable follflags. Signed-off-by: Miaohe Lin --- mm/migrate.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index bc1867a5706c..da5a81052468 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1609,7 +1609,6 @@ static int add_page_for_migration(struct mm_struct *mm, unsigned long addr, { struct vm_area_struct *vma; struct page *page; - unsigned int follflags; int err; mmap_read_lock(mm); @@ -1619,8 +1618,7 @@ static int add_page_for_migration(struct mm_struct *mm, unsigned long addr, goto out; /* FOLL_DUMP to ignore special (like zero) pages */ - follflags = FOLL_GET | FOLL_DUMP; - page = follow_page(vma, addr, follflags); + page = follow_page(vma, addr, FOLL_GET | FOLL_DUMP); err = PTR_ERR(page); if (IS_ERR(page)) @@ -2033,7 +2031,6 @@ static struct page *alloc_misplaced_dst_page_thp(struct page *page, static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) { - int page_lru; int nr_pages = thp_nr_pages(page); int order = compound_order(page); @@ -2060,8 +2057,7 @@ static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) if (isolate_lru_page(page)) return 0; - page_lru = page_is_file_lru(page); - mod_node_page_state(page_pgdat(page), NR_ISOLATED_ANON + page_lru, + mod_node_page_state(page_pgdat(page), NR_ISOLATED_ANON + page_is_file_lru(page), nr_pages); /*