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 AE84EC4332F for ; Mon, 25 Apr 2022 21:07:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 24FC76B00B2; Mon, 25 Apr 2022 17:07:15 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1FF156B00B3; Mon, 25 Apr 2022 17:07:15 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0C7C36B00B4; Mon, 25 Apr 2022 17:07:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.25]) by kanga.kvack.org (Postfix) with ESMTP id EED406B00B2 for ; Mon, 25 Apr 2022 17:07:14 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id B54A0222B2 for ; Mon, 25 Apr 2022 21:07:14 +0000 (UTC) X-FDA: 79396636788.01.F8A504C Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf25.hostedemail.com (Postfix) with ESMTP id B9FF9A003F for ; Mon, 25 Apr 2022 21:07:07 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1A50261358; Mon, 25 Apr 2022 21:07:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2CE22C385AD; Mon, 25 Apr 2022 21:07:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1650920832; bh=FUgTUOPnsMOK1t9DbQ97PLfCozZyYYNmyOz2nN7u9Y4=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Wu7wMltOw21eeo6E7iDI9gldtm4ZPCJuYkj4Ecn13FlzfQQkab/LeuGTSMbQwhpBc dqiZ06ywMjAEAE59QfSC60bLjEEjveUsX6rwJd86cqTd/Gn0viwch5HuMvVVpmRnvb wKETYf9o10pmkt69eKG9vAvz7cssUUlgpbgS5O8Y= Date: Mon, 25 Apr 2022 14:07:11 -0700 From: Andrew Morton To: Miaohe Lin Cc: , , , , , Subject: Re: [PATCH v3 3/6] mm/vmscan: activate swap-backed executable folios after first usage Message-Id: <20220425140711.0c1898862fc817135bbbc56e@linux-foundation.org> In-Reply-To: <20220425111232.23182-4-linmiaohe@huawei.com> References: <20220425111232.23182-1-linmiaohe@huawei.com> <20220425111232.23182-4-linmiaohe@huawei.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: B9FF9A003F Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=Wu7wMltO; spf=pass (imf25.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Rspam-User: X-Stat-Signature: sznnq61ctbkmmtxyheykeukuniagyiku X-HE-Tag: 1650920827-145574 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: On Mon, 25 Apr 2022 19:12:29 +0800 Miaohe Lin wrote: > 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. Does this not erase the intended effect of Joonsoo's b518154e59a ("mm/vmscan: protect the workingset on anonymous LRU")?