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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ECC0D10ED674 for ; Fri, 27 Mar 2026 14:16:11 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6398A6B0095; Fri, 27 Mar 2026 10:16:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 610D86B0096; Fri, 27 Mar 2026 10:16:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 54E366B0098; Fri, 27 Mar 2026 10:16:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 471B86B0095 for ; Fri, 27 Mar 2026 10:16:11 -0400 (EDT) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id E93C1161177 for ; Fri, 27 Mar 2026 14:16:10 +0000 (UTC) X-FDA: 84592042500.12.75E27AB Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf03.hostedemail.com (Postfix) with ESMTP id 86D3E2000C for ; Fri, 27 Mar 2026 14:16:08 +0000 (UTC) Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=NWG5gky0; spf=pass (imf03.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1774620968; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=2/c1KthjkOxHwKaeueld+RT/gif/5yMl0yCaJX9OL3c=; b=4RqKH/3VohHZZvLkyEmYCXG/Ng6fxbMftdUHLPrZLa5vwjHR1bqyTsliZ2uj/9WW+pqhz6 dRr1NLx5116RpULT6KkTe0qBnu5z1NO9VmQS7BpnV/vxT8CWPtz3WGUqySlBywGbQSmQKJ aQ6aTwsxWFuy7EPgyx5Km9ZpGWWjtgo= ARC-Authentication-Results: i=1; imf03.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=NWG5gky0; spf=pass (imf03.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1774620968; a=rsa-sha256; cv=none; b=1KE0lSf4y6rCHB4Tk1uMEHKfyBns1fvzqXr/H2NtRL6zPlxBlr3/+vATlztxx7Wd3FSIla YwZMuzDCsIa1lLJJN9DA4zfROK1ubxdCx/VpKMW0XwY5qSW87W5z1011S8AHsGRDnujSlo YX3ejTXRsEsUM9BWT604aWUc4K3Tx+A= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 787D843DE7; Fri, 27 Mar 2026 14:16:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B82D6C19423; Fri, 27 Mar 2026 14:16:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774620967; bh=cth6dxxe3aanFcyw5202phYvX47q1y5QBdQQTr+zt60=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=NWG5gky0F9g85HFcO+1A//0rEzZc653ybEusycz7wMImYbsVsFcPdrmOIErCla/rf ghRjG9HM6qdzEvTR1fr/I2HfTHlP56UmFPjs81tCGP7HTKwzNINWgql4XeP4vxLMRX ndOsWYJzmmkF33kXKMMOgdIczrsZT1dbP+/z7lzIUVoOTL1Hl28nW+99olIEf3/iU7 TuFq5hbtduFU5wLCr7qTUwB3kyDoXGMpL8MKkKT/1Dg4xoXz6EsC1lT0WmolXapBWu diqC+zh9otnP5sw8OS1/QTgNFmOaQi084gPmjeel071Tu6D2jmZUBPaIHtIrcf/GSB kSkbgZDcSjB4Q== Date: Fri, 27 Mar 2026 14:15:59 +0000 From: "Lorenzo Stoakes (Oracle)" To: Zi Yan Cc: "Matthew Wilcox (Oracle)" , Song Liu , Chris Mason , David Sterba , Alexander Viro , Christian Brauner , Jan Kara , Andrew Morton , David Hildenbrand , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Shuah Khan , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v1 02/10] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check Message-ID: <83506fe3-3b38-4053-9173-bccd46b4a297@lucifer.local> References: <20260327014255.2058916-1-ziy@nvidia.com> <20260327014255.2058916-3-ziy@nvidia.com> <31d9d5c1-02af-42b3-bc3e-aea151d3552b@lucifer.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <31d9d5c1-02af-42b3-bc3e-aea151d3552b@lucifer.local> X-Rspamd-Queue-Id: 86D3E2000C X-Stat-Signature: kcz1ht66zwgqz1aruxsw3ysuqc8c61yc X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1774620968-49808 X-HE-Meta: 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 /xilC5vt Mjs6YUnaMJJkqAwkvWDoUpIPHWyimSuZ48e/bcD7pZ/lyYW4mI5VDk+Vo6EYkMNxe1HlAvYzAlOA9ifTCDc3nrLufZaWVh4a/qWsn/7B8dCkW50eBWKLQk2BhdfEJdGSt42YwZhWEXAQgoiYOoH4D9HhcLu9HtW6JwOPXMsaQqN2YS5q9Py1/xhqx8AkkrujlkyEDTexhqdGnpWn7GjIdLwVKZ1v7vzEJC/wk3rWfNwkbbbWJWUp6mUoM4hpAUen5ckq5z8b6B5alDbk= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Mar 27, 2026 at 12:07:22PM +0000, Lorenzo Stoakes (Oracle) wrote: > > + if (mapping_max_folio_order(mapping) < PMD_ORDER) > > + return SCAN_FAIL; > > As per rest of thread, this looks correct. Actually, no :)