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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DD23FC433EF for ; Tue, 8 Feb 2022 08:30:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mM/MLTaakiTN0S5bp7jqpwwp/3p0oQEEb0comxiD1gU=; b=Zr2igaEf/rjiKE f3ZJJjqW1LvPkvd3Kkwv65aopBOI4x1iVpgh/QP5gPfP91r+cMoeBaJDotwIzdI3JH0X3phJuWPYo 5GJeg/rWvCfMpHnLtFQuGKc2eNhnRPX0dYmr4HeLHz0QkneqUj+U+X3W4OkUCy2AA0V86C9y74aJ3 PJ8a7NCFUknHJXil60aEakgLFKn/GBUonS5+etWkfLyx9/WIDH3X9joHPorT5Iz8mooGqPr7g+0FH 7GVV6B6HBVqGXJYkNcbmwWgy4u45ts3vnhzAlf7FvWORkNqhorkz6FOA7+4iAngxOB/U9S54BH6LI XQgwMf4bXd7skZapf2cw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nHLrf-00Cy0z-JW; Tue, 08 Feb 2022 08:28:45 +0000 Received: from mail-io1-xd30.google.com ([2607:f8b0:4864:20::d30]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nHLrY-00Cxxm-8W for linux-arm-kernel@lists.infradead.org; Tue, 08 Feb 2022 08:28:37 +0000 Received: by mail-io1-xd30.google.com with SMTP id s18so20112912ioa.12 for ; Tue, 08 Feb 2022 00:28:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=IaBXYZ+vat/5ri8bP0Swu84ZGYn0w01tNU9IeoBlMPo=; b=JThnxs6ZEyP2u3Voeo1JuquQn0t749qV+dqgrkX/eEyw4qMNSGPIULygJERycpC1iy +AQd2m1QIjqNSDwOFk46qn5AYDIHYzXVdEM3dtSWuOvlvT8+KthV+E99Rhvtvxn5ILCs haxC3B8Gsf1Pi5Nq/N2zOQ5W0mAhVJkCxyJb4lWDFgta0RejGctd0RcYBY8sIBBL0aWd APCE23snVKHhFdcAW9iyip/mQUSd+NwczXDE1llk0vN/RqI0nPxmqbqcbxTylIaE2XnI bHheeZVK7BT++iatU0uIk/jvo2r77n8slx8g5GX2AeL6By3N4E4LbJMw2D/Drc+Yqdfa sodw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=IaBXYZ+vat/5ri8bP0Swu84ZGYn0w01tNU9IeoBlMPo=; b=1tt8jGdfO7Cv7dMUBwaFveUrQ0IWYZbTOIoL4x0bp1Zfa0gYc/q3mqQLxuvveugRVO pD6qgfEBAsUPU3hJOfXl/MtIp/FwD9/FTY7em7MQBQObs8aZicfC2gWFGYXFrY4yD/lN HcpDeejEi2RBGaGQwlNqWRl4VTv0P/VLx5SWjaorwoIDZI5UoBNrm/09y57RIXmPH6re ewZexr/dRG+V7++kQkQTp9JqJmo4u4XNXM2xZSXM7x6Da/Q0AuKJBQHL+JySuNhIz1pS SWGbJTCfdhGfZfOd40/vE9COimE0EVp03adooowV9yAOAmQ8NcOIqLaEWBJKViS/unP/ FSxw== X-Gm-Message-State: AOAM531IhMaB/hy4cv2da15tAw64GUqcRdhjeDqhRdLULA7qmhUZ8jeV gdaqtwF5tgPSKcWwvj+3f+s1MQ== X-Google-Smtp-Source: ABdhPJzqrwOWjbsRUGOLxbeEThZwwHRnlRXbd7OEIRH/TeA65mA64JA5hXRJTjnC0IbwzU+6RJs/Ng== X-Received: by 2002:a05:6638:13c8:: with SMTP id i8mr1687217jaj.125.1644308914113; Tue, 08 Feb 2022 00:28:34 -0800 (PST) Received: from google.com ([2620:15c:183:200:5f31:19c3:21f5:7300]) by smtp.gmail.com with ESMTPSA id y9sm2780137ilg.58.2022.02.08.00.28.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Feb 2022 00:28:33 -0800 (PST) Date: Tue, 8 Feb 2022 01:28:29 -0700 From: Yu Zhao To: Andrew Morton , Johannes Weiner , Mel Gorman , Michal Hocko Cc: Andi Kleen , Aneesh Kumar , Barry Song <21cnbao@gmail.com>, Catalin Marinas , Dave Hansen , Hillf Danton , Jens Axboe , Jesse Barnes , Jonathan Corbet , Linus Torvalds , Matthew Wilcox , Michael Larabel , Mike Rapoport , Rik van Riel , Vlastimil Babka , Will Deacon , Ying Huang , linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, page-reclaim@google.com, x86@kernel.org, Brian Geffon , Jan Alexander Steffens , Oleksandr Natalenko , Steven Barrett , Suleiman Souhlal , Daniel Byrne , Donald Carr , Holger =?iso-8859-1?Q?Hoffst=E4tte?= , Konstantin Kharlamov , Shuang Zhai , Sofia Trinh Subject: Re: [PATCH v7 04/12] mm: multigenerational LRU: groundwork Message-ID: References: <20220208081902.3550911-1-yuzhao@google.com> <20220208081902.3550911-5-yuzhao@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220208081902.3550911-5-yuzhao@google.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220208_002836_356471_E8192B1A X-CRM114-Status: GOOD ( 14.17 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Feb 08, 2022 at 01:18:54AM -0700, Yu Zhao wrote: > diff --git a/mm/memory.c b/mm/memory.c > index a7379196a47e..d27e5f1a2533 100644 > --- a/mm/memory.c > +++ b/mm/memory.c > @@ -4754,6 +4754,27 @@ static inline void mm_account_fault(struct pt_regs *regs, > perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address); > } > > +#ifdef CONFIG_LRU_GEN > +static void lru_gen_enter_fault(struct vm_area_struct *vma) > +{ > + /* the LRU algorithm doesn't apply to sequential or random reads */ > + current->in_lru_fault = !(vma->vm_flags & (VM_SEQ_READ | VM_RAND_READ)); > +} > + > +static void lru_gen_exit_fault(void) > +{ > + current->in_lru_fault = false; > +} > +#else > +static void lru_gen_enter_fault(struct vm_area_struct *vma) > +{ > +} > + > +static void lru_gen_exit_fault(void) > +{ > +} > +#endif /* CONFIG_LRU_GEN */ Moved task_enter_lru_fault() from mm.h to memory.c as requested here: https://lore.kernel.org/linux-mm/CAHk-=wib5-tUrf2=zYL9hjCqqFykZmTr_-vMAvSo48boCA+-Wg@mail.gmail.com/ Also renamed it to lru_gen_enter_fault(). _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel