From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 862E07F83 for ; Sat, 31 May 2014 13:23:20 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 558F08F8037 for ; Sat, 31 May 2014 11:23:17 -0700 (PDT) Received: from mail-we0-f169.google.com (mail-we0-f169.google.com [74.125.82.169]) by cuda.sgi.com with ESMTP id hDZkZOHNxmr8jpgx (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sat, 31 May 2014 11:23:12 -0700 (PDT) Received: by mail-we0-f169.google.com with SMTP id u56so3448922wes.14 for ; Sat, 31 May 2014 11:23:10 -0700 (PDT) Date: Sat, 31 May 2014 20:22:37 +0200 From: Richard Cochran Subject: Re: [RFC 00/32] making inode time stamps y2038 ready Message-ID: <20140531182237.GA5382@localhost.localdomain> References: <1401480116-1973111-1-git-send-email-arnd@arndb.de> <20140531145114.GA3721@localhost.localdomain> <6347520.8jMPlVsFjM@wuerfel> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <6347520.8jMPlVsFjM@wuerfel> 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: Arnd Bergmann Cc: hch@infradead.org, linux-mtd@lists.infradead.org, hpa@zytor.com, linux-f2fs-devel@lists.sourceforge.net, ceph-devel@vger.kernel.org, joseph@codesourcery.com, linux-arch@vger.kernel.org, linux-cifs@vger.kernel.org, linux-scsi@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, coda@cs.cmu.edu, geert@linux-m68k.org, linux-ext4@vger.kernel.org, linux-afs@lists.infradead.org, fuse-devel@lists.sourceforge.net, reiserfs-devel@vger.kernel.org, xfs@oss.sgi.com, john.stultz@linaro.org, tglx@linutronix.de, linux-nfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, logfs@logfs.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, lftan@altera.com, ocfs2-devel@oss.oracle.com On Sat, May 31, 2014 at 05:23:02PM +0200, Arnd Bergmann wrote: > > It's an approximation: (Approximately never ;) > with 64-bit timestamps, you can represent close to 300 billion > years, which is way past the time that our planet can sustain > life of any form[1]. Did you mean mean 64 bits worth of seconds? 2^64 / (3600*24*365) = 584,942,417,355 That is more than 300 billion years, and still, it is not quite the same as "never". In any case, that term is not too helpful in the comparison table, IMHO. One could think that some sort of clever running count relative to the last mount time was implied. Thanks, Richard [1] You are forgetting the immortal robotic overlords. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs