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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 E9720CA9EB7 for ; Mon, 21 Oct 2019 11:37:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B68B82084C for ; Mon, 21 Oct 2019 11:37:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WnTjY92E" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728459AbfJULhW (ORCPT ); Mon, 21 Oct 2019 07:37:22 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:25735 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727889AbfJULhW (ORCPT ); Mon, 21 Oct 2019 07:37:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1571657841; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Vofe0VQns1D/DiFjEtpjmLVshKuMJelezuNzu5bHnE0=; b=WnTjY92ErqFIr/sqcaFnPpe4V9InbgdELKqLcR4Hq9xImm2c7UFOIiphi+iOMAr/f9hc66 MoG4ne63mGDjiukCW6B0OLGRlry32BTsIprogAvnfxzQE+mLCInpjEbWWhrkwNvhM57+Ew TLglelxvtimqhGsovNHG7AbUP6rY08E= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-371-9eKivh9JPFea858DYC3R4g-1; Mon, 21 Oct 2019 07:37:17 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8B3F2107AD31; Mon, 21 Oct 2019 11:37:16 +0000 (UTC) Received: from [10.40.204.224] (ovpn-204-224.brq.redhat.com [10.40.204.224]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0AB7D5D6A5; Mon, 21 Oct 2019 11:37:14 +0000 (UTC) Subject: Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software. To: =?UTF-8?Q?Pali_Roh=c3=a1r?= , Konstantin Komarov References: <453A1153-9493-4A04-BF66-CE6A572DEBDB@paragon-software.com> <20191021111136.adpxjxmmz4p2vud2@pali> Cc: "viro@zeniv.linux.org.uk" , "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" From: Maurizio Lombardi Message-ID: Date: Mon, 21 Oct 2019 13:37:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 MIME-Version: 1.0 In-Reply-To: <20191021111136.adpxjxmmz4p2vud2@pali> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-MC-Unique: 9eKivh9JPFea858DYC3R4g-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dne 21.10.2019 v 13:11 Pali Roh=C3=A1r napsal(a): > Are you going to add support also for TexFAT? Or at least for more two > FAT tables (like is used in FAT32)? >=20 Just a small note here, differences between FAT and exFAT: 1) Contiguous files get a special treatment by exFAT: they do not use the F= AT cluster chain. 2) exFAT doesn't use the FAT to track free space, it uses a bitmap. So, 2 FAT tables are probably not sufficient for recovery, 2 bitmaps are ne= eded too.[1] Btw, only Windows CE supported this. [1] http://www.ntfs.com/exfat-allocation-bitmap.htm Maurizio