Received: by 2002:a25:7ec1:0:0:0:0:0 with SMTP id z184csp315917ybc; Tue, 12 Nov 2019 01:51:54 -0800 (PST) X-Google-Smtp-Source: APXvYqwDLSFQe50iDnEE3WGBF28FpREwALIv8uC1w34zp1BRNF70jvYn/0/eZv1IwnmLfk+2rV1f X-Received: by 2002:a05:6402:28d:: with SMTP id l13mr32242623edv.286.1573552314508; Tue, 12 Nov 2019 01:51:54 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1573552314; cv=none; d=google.com; s=arc-20160816; b=WtOwO2bt+YmojR4nHl6bWNgrDS9iX9UwSaXdYmXWB+1tpZf6wKc9WqydooonkTDDoY w6St2mB+3/JxQTiAC2z0r+yvHvfOFPX/4837TlenR7s0GpvNrMtT9iIQN4oQIQJaeV8p bfbZcfw1oE0daU2HCkalTdAgUAyM7nhTOgXTohsAiEzc/uh8h/JZdeE4rKx/uhO2XhPv Lv6THwJQc8LXIBNaArdyG3hwoRpZDZj34mv74KkwPJRMFPRkUHnsqRKFV3WNNZWpZQYg aYEANFwtqbrkdToSx3F/G7fk5HtiovjhSbaO8k6I1mlsr3QF86hIhQ5QwK7M/3+tud47 XtKA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=ARo4ZlyejIRPLo1n6lLQ5b/xcR96KldflyCH2YUA2yM=; b=cSwT41PozrqVby1BHQxvAqWFSnPRWXItt2dNeR5TDSYM2HvYHF89laJpgCX3OuW+L5 a1KQJ51vp3oDI8OLUv01ILZL0sIVR/Kz2Xsyi4OLOZq+mSvQDpNlUBm4NGpiwLwZTi4c MY5oFi7rbKYSkiQJP6cormTzoNqtcmVoSizW3cV8l0jMZfUXI3byzKAHqYiBriVHBJ2B +T9M9UDJ5+vPbcYYG3u5Z3U4ggbDQix1Uw6uoQUcSOZZ4x+ZvbapHsdvfJECjCWI63dU F8rabXWSi+MJlk4LMmU/CXt1EzrC49wOcAb6rLv9NKhmRKMXJv2Y2qVXFCw9QzZKtCvE CQew== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g19si107844edb.280.2019.11.12.01.51.30; Tue, 12 Nov 2019 01:51:54 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727394AbfKLJt4 (ORCPT + 99 others); Tue, 12 Nov 2019 04:49:56 -0500 Received: from mx2.suse.de ([195.135.220.15]:58046 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725899AbfKLJt4 (ORCPT ); Tue, 12 Nov 2019 04:49:56 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 97B26B039; Tue, 12 Nov 2019 09:49:54 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 3F48C1E47E5; Tue, 12 Nov 2019 10:49:54 +0100 (CET) Date: Tue, 12 Nov 2019 10:49:54 +0100 From: Jan Kara To: Bharat Kumar Gogada Cc: "linux-nvdimm@lists.01.org" , "linux-fsdevel@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "willy@infradead.org" , "viro@zeniv.linux.org.uk" , "jack@suse.cz" , Dan Williams Subject: Re: DAX filesystem support on ARMv8 Message-ID: <20191112094954.GC1241@quack2.suse.cz> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! On Tue 12-11-19 02:12:09, Bharat Kumar Gogada wrote: > As per Documentation/filesystems/dax.txt > > The DAX code does not work correctly on architectures which have virtually > mapped caches such as ARM, MIPS and SPARC. > > Can anyone please shed light on dax filesystem issue w.r.t ARM architecture ? I've CCed Dan, he might have idea what that comment means :) Out of curiosity, why do you care? Honza -- Jan Kara SUSE Labs, CR