From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f46.google.com (mail-wm0-f46.google.com [74.125.82.46]) by kanga.kvack.org (Postfix) with ESMTP id 264DD6B0038 for ; Mon, 23 Nov 2015 15:56:55 -0500 (EST) Received: by wmec201 with SMTP id c201so122629564wme.1 for ; Mon, 23 Nov 2015 12:56:54 -0800 (PST) Received: from mail-wm0-x234.google.com (mail-wm0-x234.google.com. [2a00:1450:400c:c09::234]) by mx.google.com with ESMTPS id db10si21828203wjc.200.2015.11.23.12.56.54 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 23 Nov 2015 12:56:54 -0800 (PST) Received: by wmec201 with SMTP id c201so122629211wme.1 for ; Mon, 23 Nov 2015 12:56:54 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <1448311559.19320.2.camel@hpe.com> References: <1448309120-20911-1-git-send-email-toshi.kani@hpe.com> <1448311559.19320.2.camel@hpe.com> Date: Mon, 23 Nov 2015 12:56:53 -0800 Message-ID: Subject: Re: [PATCH] dax: Split pmd map when fallback on COW From: Dan Williams Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Toshi Kani Cc: "Kirill A. Shutemov" , Matthew Wilcox , Ross Zwisler , Linux MM , linux-fsdevel , "linux-nvdimm@lists.01.org" , "linux-kernel@vger.kernel.org" On Mon, Nov 23, 2015 at 12:45 PM, Toshi Kani wrote: > On Mon, 2015-11-23 at 12:45 -0800, Dan Williams wrote: >> On Mon, Nov 23, 2015 at 12:05 PM, Toshi Kani wrote: [..] >> This is a nop if CONFIG_TRANSPARENT_HUGEPAGE=n, so I don't think it's >> a complete fix. > > Well, __dax_pmd_fault() itself depends on CONFIG_TRANSPARENT_HUGEPAGE. > Indeed it is... I think that's wrong because transparent huge pages rely on struct page?? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org