From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E7D677F66 for ; Mon, 24 Nov 2014 03:08:00 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B8947304053 for ; Mon, 24 Nov 2014 01:07:57 -0800 (PST) Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id eCLaUDGU5EYlMIq3 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 24 Nov 2014 01:07:56 -0800 (PST) Date: Mon, 24 Nov 2014 01:07:55 -0800 From: Christoph Hellwig Subject: Re: [PATCH-v2 0/5] add support for a lazytime mount option Message-ID: <20141124090755.GA28534@infradead.org> References: <1416675267-2191-1-git-send-email-tytso@mit.edu> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1416675267-2191-1-git-send-email-tytso@mit.edu> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Theodore Ts'o Cc: linux-fsdevel@vger.kernel.org, Ext4 Developers List , linux-btrfs@vger.kernel.org, xfs@oss.sgi.com What's the test coverage for this? xfstest generic/192 tests that atime is persisted over remounts, which we had a bug with when XFS used to have a lazy atime implementation somewhat similar to the proposal. We should have something similar for c/mtime as well. Also a test to ensure timestamps are persisted afer a fsync, although right now I can't imagine how to do that genericly as no other filesystem seems to have an equivaent to XFS_IOC_GOINGDOWN. It seems you also handle i_version updates lazily. although that's not mentioned anywhere. I actually have a clarification request out on the IETF NFSv4 list about the persistance requirements for the change counter but I've not seen an answer to it yet. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs