From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by kanga.kvack.org (Postfix) with ESMTP id 764486B0031 for ; Thu, 9 Jan 2014 05:06:40 -0500 (EST) Received: by mail-bk0-f52.google.com with SMTP id u14so1041053bkz.25 for ; Thu, 09 Jan 2014 02:06:39 -0800 (PST) Received: from mail-bk0-x229.google.com (mail-bk0-x229.google.com [2a00:1450:4008:c01::229]) by mx.google.com with ESMTPS id ch10si1766387bkc.61.2014.01.09.02.06.39 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 09 Jan 2014 02:06:39 -0800 (PST) Received: by mail-bk0-f41.google.com with SMTP id v15so1057316bkz.14 for ; Thu, 09 Jan 2014 02:06:39 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20140108212636.GC15313@quack.suse.cz> References: <20140107122301.GC16640@quack.suse.cz> <20140108111640.GD8256@quack.suse.cz> <20140108212636.GC15313@quack.suse.cz> Date: Thu, 9 Jan 2014 15:36:38 +0530 Message-ID: Subject: Re: [LSF/MM ATTEND] Stackable Union Filesystem Implementation From: Saket Sinha Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linux-mm@kvack.org List-ID: To: Jan Kara Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, lsf-pc@lists.linux-foundation.org >> As already mentioned that the issue that we were facing was that "too >> many copyups were made on the read-write file system". > But my question is: In which cases specifically do you want to avoid > copyups as compared to e.g. Overlayfs? > To be honest I do not the answer. I had senior kernel developers from Cern who guided me when working on this driver. I need to consult them in order to answer you correctly. I would try to be bring them in this thread to get you the right answer. Regards, Saket Sinha -- 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