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 7EB75C433EF for ; Mon, 25 Apr 2022 11:12:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 454466B007B; Mon, 25 Apr 2022 07:12:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 400616B007D; Mon, 25 Apr 2022 07:12:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2C8966B007E; Mon, 25 Apr 2022 07:12:14 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.a.hostedemail.com [64.99.140.24]) by kanga.kvack.org (Postfix) with ESMTP id 1AA4D6B007B for ; Mon, 25 Apr 2022 07:12:14 -0400 (EDT) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id E99CA22E54 for ; Mon, 25 Apr 2022 11:12:13 +0000 (UTC) X-FDA: 79395137346.02.BF9C0DD Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by imf24.hostedemail.com (Postfix) with ESMTP id 566D1180055 for ; Mon, 25 Apr 2022 11:12:10 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Kn2Qg00JGzhYlj; Mon, 25 Apr 2022 19:11:54 +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 15.1.2375.24; Mon, 25 Apr 2022 19:12:10 +0800 From: Miaohe Lin To: CC: , , , , , , Subject: [PATCH v3 3/6] mm/vmscan: activate swap-backed executable folios after first usage Date: Mon, 25 Apr 2022 19:12:29 +0800 Message-ID: <20220425111232.23182-4-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20220425111232.23182-1-linmiaohe@huawei.com> References: <20220425111232.23182-1-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 566D1180055 X-Stat-Signature: 7rnozocp9er3kqc6djo18g3rsdckc6op X-Rspam-User: Authentication-Results: imf24.hostedemail.com; dkim=none; spf=pass (imf24.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com; dmarc=pass (policy=quarantine) header.from=huawei.com X-HE-Tag: 1650885130-763031 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 should activate swap-backed executable folios (e.g. tmpfs) after first usage so that executable code gets yet better chance to stay in memory. Suggested-by: Huang, Ying Signed-off-by: Miaohe Lin Reviewed-by: Huang, Ying Cc: Joonsoo Kim --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 7dcc8cf4526f..82e6fa83c472 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1415,9 +1415,9 @@ static enum page_references folio_check_references(struct folio *folio, return PAGEREF_ACTIVATE; /* - * Activate file-backed executable folios after first usage. + * Activate executable folios after first usage. */ - if ((vm_flags & VM_EXEC) && !folio_test_swapbacked(folio)) + if (vm_flags & VM_EXEC) return PAGEREF_ACTIVATE; return PAGEREF_KEEP; -- 2.23.0