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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4C3FC433F5 for ; Sat, 9 Apr 2022 09:34:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241354AbiDIJhA (ORCPT ); Sat, 9 Apr 2022 05:37:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241175AbiDIJgj (ORCPT ); Sat, 9 Apr 2022 05:36:39 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5457ABBE29 for ; Sat, 9 Apr 2022 02:34:33 -0700 (PDT) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Kb8zd0hbwzgYKZ; Sat, 9 Apr 2022 17:32:45 +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; Sat, 9 Apr 2022 17:34:31 +0800 From: Miaohe Lin To: CC: , , , , , , Subject: [PATCH v2 5/9] mm/vmscan: activate swap-backed executable folios after first usage Date: Sat, 9 Apr 2022 17:34:56 +0800 Message-ID: <20220409093500.10329-6-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20220409093500.10329-1-linmiaohe@huawei.com> References: <20220409093500.10329-1-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 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 0e5818970998..cc1193e320c2 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1412,9 +1412,9 @@ 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