From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47071) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aNf7z-0000cN-Jc for qemu-devel@nongnu.org; Mon, 25 Jan 2016 06:16:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aNf7y-0003qm-Ln for qemu-devel@nongnu.org; Mon, 25 Jan 2016 06:16:11 -0500 Date: Mon, 25 Jan 2016 12:16:01 +0100 From: Kevin Wolf Message-ID: <20160125111601.GC5154@noname.redhat.com> References: <1453688783-11825-1-git-send-email-famz@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1453688783-11825-1-git-send-email-famz@redhat.com> Subject: Re: [Qemu-devel] [PATCH] vmdk: Fix converting to streamOptimized List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Fam Zheng Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org Am 25.01.2016 um 03:26 hat Fam Zheng geschrieben: > Commit d62d9dc4b8 lifted streamOptimized images's version to 3, but we > now refuse to open version 3 images read-write. We need to make > streamOptimized an exception to allow converting to it. This fixes the > accidentally broken iotests case 059 for the same reason. > > Signed-off-by: Fam Zheng How different are version 3 images for other subformats? Are we arbitrarily restrictring their use or is it really that they don't work with our driver? And if they don't work with our driver, are we sure that streamOptimized images can't use the features we don't support? Or is the version defined per subformat and doesn't necessarily exist for other types? Kevin