From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0E8AA7F66 for ; Tue, 28 Jan 2014 16:02:35 -0600 (CST) Date: Tue, 28 Jan 2014 16:02:30 -0600 From: Geoffrey Wehrman Subject: Re: [RFC 00/17] RFC parent inode pointers. Message-ID: <20140128220230.GF13953@sgi.com> References: <20140115220012.624438534@sgi.com> <20140116055607.GR3431@dastard> <52D99FD2.6000601@sgi.com> <20140118031247.GE18112@dastard> <52E6B67B.6070001@sgi.com> <20140128030040.GG2212@dastard> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20140128030040.GG2212@dastard> 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: Dave Chinner Cc: Mark Tinguely , xfs@oss.sgi.com On Tue, Jan 28, 2014 at 02:00:40PM +1100, Dave Chinner wrote: | On Mon, Jan 27, 2014 at 01:41:47PM -0600, Mark Tinguely wrote: | > 2) Add the filename to EA. Not a fan, but I will ask but if DMF needs it | > for performance then it has to be done. My point was this assumes | > that we can keep all the links' EA entries inline in the inode. A | > couple 255 character files or several links of modest sized filenames | > would negate that assumption. I tried to minimize the EA entries to | > keep them inline in the inode. I will talk to the DMF group. | | Actually, I made the point about DMF needing them inline performance | because that's an argument SGI might find persuasive. What I didn't | say just then is that *I* need them inline, too, as online directory | tree scrubbing needs to be able to do bulks scans, as does | xfs_repair. However, I have idefinitely said this before in previous | parent poitner discussions, so it should be no surprise here... I appologize in advance for my ignorance. What is "online directory tree scrubbing" and how does it benefit from parent inode pointers? -- Geoffrey Wehrman _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs