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 5213FC433EF for ; Thu, 20 Jan 2022 17:48:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BB5E66B009D; Thu, 20 Jan 2022 12:48:56 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B643E6B009F; Thu, 20 Jan 2022 12:48:56 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A04B46B00A0; Thu, 20 Jan 2022 12:48:56 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay026.a.hostedemail.com [64.99.140.26]) by kanga.kvack.org (Postfix) with ESMTP id 914126B009D for ; Thu, 20 Jan 2022 12:48:56 -0500 (EST) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 4339320F97 for ; Thu, 20 Jan 2022 17:48:56 +0000 (UTC) X-FDA: 79051401072.01.681FF05 Received: from mail-pj1-f45.google.com (mail-pj1-f45.google.com [209.85.216.45]) by imf03.hostedemail.com (Postfix) with ESMTP id B5D8F20016 for ; Thu, 20 Jan 2022 17:48:55 +0000 (UTC) Received: by mail-pj1-f45.google.com with SMTP id d12-20020a17090a628c00b001b4f47e2f51so7784834pjj.3 for ; Thu, 20 Jan 2022 09:48:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=heGH2liwYeCVUcWukb6EpDtm1zadgMNDqt2eox+7pWc=; b=brgRAWWO7gC1UKbwS50JJf0+G6U6nF/slfpvQimG+jXSv2HGviZa9tdLMImpDRa5FV TbFtlPBhXoAk4rVOjw/wBxpJhQ7UvFT8YtKleMiL25EoWSupvh62f/vDD1TZU1aFDEcl g6l1RWO7N1Fxwi/KRccGFD8/uCfU7Yoq5s4OTg0D8jgKoR+HfrCZhW4wWoD1dbKHf5lD rNfJJhV/i49FMYm5pdDVuEa7zWcyk7s26NJ2Mlzj3xrUZcTkgXQsyKVnC+d0eCbliHwM RaD0IPDjtYmf59f4e+O2DZDoQ0kW4wMWIGQpywY6IS6r0OKZirghAp9bIKcqW79kvgGV neQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=heGH2liwYeCVUcWukb6EpDtm1zadgMNDqt2eox+7pWc=; b=JpKBJ/ie7yQGOOVIM3KTQ183A4X8PIr7cskzgshbkmtfjtkCeRHbXI4f2RH4qAViHq xnGN9bvDHttWdPVeCAUJO9v9+YAja3nzw2GcYSjPk9kC9ywo8P2KAoZrKTxV8xdReKjV FzSJHcnkNl76gJUCN+7dWp0zbZUPg8yi6OuHjNZ9W+yL55rjYnBq/48vg3AI3JoP/3u5 MneIRphaAfoRIny3t4eQl2hOz8+1JfQSjfcImQsRzXWMSMEZvUQWsw8OjUmO0IWLYPlK fU91vljfDv4he78XtWxcfDuDelZWO4y0a7awsSCe6nsiNLVtIj/t8+Zm1qRQ8yG+YoYB Oi3A== X-Gm-Message-State: AOAM532OBy2zd3ZaVF09EF67d394Xo1V2BCb2j79JY7PfgknHFipP+8p zvKfTeBnmHvn91yXkyz9Nu4= X-Google-Smtp-Source: ABdhPJzyobnH69tRqfsYfWWnD8saKrtlbJKZRjLnwZm0USBh0gKwesmZNKH+heVPV4448zyIC29m/g== X-Received: by 2002:a17:90b:4ad1:: with SMTP id mh17mr12163935pjb.160.1642700934309; Thu, 20 Jan 2022 09:48:54 -0800 (PST) Received: from smtpclient.apple ([66.170.99.2]) by smtp.gmail.com with ESMTPSA id v8sm9534524pju.51.2022.01.20.09.48.53 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 20 Jan 2022 09:48:53 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.40.0.1.81\)) Subject: Re: [PATCH] mm: reuse the unshared swapcache page in do_wp_page From: Nadav Amit In-Reply-To: <747ff31c-6c9e-df6c-f14d-c43aa1c77b4a@redhat.com> Date: Thu, 20 Jan 2022 09:48:52 -0800 Cc: "zhangliang (AG)" , Andrew Morton , Linux-MM , Linux Kernel Mailing List , wangzhigang17@huawei.com, Matthew Wilcox , Linus Torvalds Content-Transfer-Encoding: quoted-printable Message-Id: References: <20220113140318.11117-1-zhangliang5@huawei.com> <172ccfbb-7e24-db21-7d84-8c8d8c3805fd@redhat.com> <9cd7eee2-91fd-ddb8-e47d-e8585e5baa05@redhat.com> <747ff31c-6c9e-df6c-f14d-c43aa1c77b4a@redhat.com> To: David Hildenbrand X-Mailer: Apple Mail (2.3693.40.0.1.81) X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: B5D8F20016 X-Stat-Signature: k97atfo4qqrdg7xoph7gpr8p71rbwubm Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=brgRAWWO; spf=pass (imf03.hostedemail.com: domain of nadav.amit@gmail.com designates 209.85.216.45 as permitted sender) smtp.mailfrom=nadav.amit@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-HE-Tag: 1642700935-114352 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 Jan 20, 2022, at 6:15 AM, David Hildenbrand = wrote: >=20 > On 17.01.22 14:31, zhangliang (AG) wrote: >> Sure, I will do that :) >=20 > I'm polishing up / testing the patches and might send something out = for discussion shortly. > Just a note that on my branch was a version with a wrong condition = that should have been fixed now. >=20 Sorry for being late for the discussion. David, does any of it regards the lru_cache_add() reference issue that I mentioned? [1] Seems to me that any solution should also regard this problem, or am I missing something? Thanks, Nadav [1] = https://lore.kernel.org/linux-mm/0480D692-D9B2-429A-9A88-9BBA1331AC3A@gmai= l.com/=