From owner-freebsd-fs@freebsd.org Mon Jul 15 14:26:16 2019 Return-Path: Delivered-To: freebsd-fs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 5C717BB51B for ; Mon, 15 Jul 2019 14:26:16 +0000 (UTC) (envelope-from list1@gjunka.com) Received: from msa1.earth.yoonka.com (yoonka.com [88.98.225.149]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "msa1.earth.yoonka.com", Issuer "msa1.earth.yoonka.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id C2F5B93647 for ; Mon, 15 Jul 2019 14:26:14 +0000 (UTC) (envelope-from list1@gjunka.com) Received: from [10.70.7.24] ([10.70.7.24]) (authenticated bits=0) by msa1.earth.yoonka.com (8.15.2/8.15.2) with ESMTPSA id x6FECl12074908 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 15 Jul 2019 14:12:47 GMT (envelope-from list1@gjunka.com) To: freebsd-fs@freebsd.org From: Grzegorz Junka Subject: UnionsFS/whiteout on ZFS Message-ID: Date: Mon, 15 Jul 2019 15:12:47 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-GB X-Rspamd-Queue-Id: C2F5B93647 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; spf=pass (mx1.freebsd.org: domain of list1@gjunka.com designates 88.98.225.149 as permitted sender) smtp.mailfrom=list1@gjunka.com X-Spamd-Result: default: False [-6.50 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:88.98.225.149]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-fs@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; DMARC_NA(0.00)[gjunka.com]; MX_GOOD(-0.01)[gjunka.com]; NEURAL_HAM_SHORT(-0.57)[-0.570,0]; IP_SCORE(-3.62)[ip: (-9.48), ipnet: 88.98.192.0/18(-4.74), asn: 56478(-3.79), country: GB(-0.08)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:56478, ipnet:88.98.192.0/18, country:GB]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Jul 2019 14:26:16 -0000 Hello, With the ZFS on FreeBSD moving to ZoL, does anyone know what's the current status of supporting UnionFS on ZFS? Last time I checked FreeBSD implementation lacked the "whiteout" feature required to properly support deleting files in upper layers. Does OpenZFS or ZoL provide any updates to properly supporting UnionFS on ZFS? Thanks GrzegorzJ