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 X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6117C433E2 for ; Tue, 15 Sep 2020 07:28:19 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6BD2F2080C for ; Tue, 15 Sep 2020 07:28:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="kkNxB3CX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6BD2F2080C Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=amazon.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id DC10C900024; Tue, 15 Sep 2020 03:28:18 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D4A9F90001D; Tue, 15 Sep 2020 03:28:18 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C11F7900024; Tue, 15 Sep 2020 03:28:18 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0174.hostedemail.com [216.40.44.174]) by kanga.kvack.org (Postfix) with ESMTP id A60BB90001D for ; Tue, 15 Sep 2020 03:28:18 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 6BA8B181AEF09 for ; Tue, 15 Sep 2020 07:28:18 +0000 (UTC) X-FDA: 77264467476.02.smash72_4b070ed2710f Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin02.hostedemail.com (Postfix) with ESMTP id 26C5810097AA0 for ; Tue, 15 Sep 2020 07:28:18 +0000 (UTC) X-HE-Tag: smash72_4b070ed2710f X-Filterd-Recvd-Size: 2633 Received: from smtp-fw-2101.amazon.com (smtp-fw-2101.amazon.com [72.21.196.25]) by imf04.hostedemail.com (Postfix) with ESMTP for ; Tue, 15 Sep 2020 07:28:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1600154897; x=1631690897; h=from:to:cc:subject:date:message-id:in-reply-to: mime-version; bh=yZlh5Qk9TYR9WQzAGIgv0eKKpBf1Y88F6qDmjCiw784=; b=kkNxB3CXdp86S4o/qduo2z4grpf7YGe2zergYSM9VtZVtGG2dEii7zvZ Y1Wr6GO/wXAbdJKnQnZCpBaabgHjpP2wkcJfJNAG5QQY0k7QBK7Ho3TI9 BIv8ZNj1CLnNM2p5ztgZgr1JbW7kXufimY7JnygzaafohhBtAMgAD2IA7 4=; X-IronPort-AV: E=Sophos;i="5.76,429,1592870400"; d="scan'208";a="53813355" Received: from iad12-co-svc-p1-lb1-vlan2.amazon.com (HELO email-inbound-relay-1e-17c49630.us-east-1.amazon.com) ([10.43.8.2]) by smtp-border-fw-out-2101.iad2.amazon.com with ESMTP; 15 Sep 2020 07:28:06 +0000 Received: from EX13D31EUA004.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan2.iad.amazon.com [10.40.163.34]) by email-inbound-relay-1e-17c49630.us-east-1.amazon.com (Postfix) with ESMTPS id CF725A1F3C; Tue, 15 Sep 2020 07:28:04 +0000 (UTC) Received: from u3f2cd687b01c55.ant.amazon.com (10.43.160.244) by EX13D31EUA004.ant.amazon.com (10.43.165.161) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 15 Sep 2020 07:28:01 +0000 From: SeongJae Park To: "Matthew Wilcox (Oracle)" CC: , Andrew Morton , "Kirill A . Shutemov" , Huang Ying Subject: Re: [PATCH 08/11] mm/rmap: Fix assumptions of THP size Date: Tue, 15 Sep 2020 09:27:44 +0200 Message-ID: <20200915072744.14028-1-sjpark@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200908195539.25896-9-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.43.160.244] X-ClientProxiedBy: EX13D21UWB002.ant.amazon.com (10.43.161.177) To EX13D31EUA004.ant.amazon.com (10.43.165.161) X-Rspamd-Queue-Id: 26C5810097AA0 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 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 Tue, 8 Sep 2020 20:55:35 +0100 "Matthew Wilcox (Oracle)" wrote: > Ask the page what size it is instead of assuming it's PMD size. Do this > for anon pages as well as file pages for when someone decides to support > that. Leave the assumption alone for pages which are PMD mapped; we > don't currently grow THPs beyond PMD size, so we don't need to change > this code yet. > > Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: SeongJae Park Thanks, SeongJae Park