From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by kanga.kvack.org (Postfix) with ESMTP id A48B36B44BB for ; Mon, 26 Nov 2018 19:33:39 -0500 (EST) Received: by mail-io1-f70.google.com with SMTP id f24so20162525ioh.21 for ; Mon, 26 Nov 2018 16:33:39 -0800 (PST) Received: from userp2120.oracle.com (userp2120.oracle.com. [156.151.31.85]) by mx.google.com with ESMTPS id 71si1970371itr.123.2018.11.26.16.33.38 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Nov 2018 16:33:38 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.2 \(3445.102.3\)) Subject: Re: [RFC PATCH 3/3] mm, proc: report PR_SET_THP_DISABLE in proc From: William Kucharski In-Reply-To: <20181120103515.25280-4-mhocko@kernel.org> Date: Mon, 26 Nov 2018 17:33:32 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: <0ACDD94B-75AD-4DD0-B2E3-32C0EDFBAA5E@oracle.com> References: <20181120103515.25280-1-mhocko@kernel.org> <20181120103515.25280-4-mhocko@kernel.org> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: linux-api@vger.kernel.org, Andrew Morton , Alexey Dobriyan , linux-mm@kvack.org, LKML , Michal Hocko This determines whether the page can theoretically be THP-mapped , but = is the intention to also check for proper alignment and/or preexisting = PAGESIZE page cache mappings for the address range? I'm having to deal with both these issues in the text page THP prototype = I've been working on for some time now. Thanks, William Kucharski=