From: Greg Freemyer Subject: Re: e4defrag and immutable files Date: Tue, 1 Jun 2010 16:14:02 -0400 Message-ID: References: <4C002427.3010706@zytor.com> <4C05604D.2070401@oracle.com> <20100601194924.GF4426@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Sunil Mushran , "H. Peter Anvin" , linux-ext4@vger.kernel.org, Joel Becker , Mark Fasheh To: tytso@mit.edu Return-path: Received: from mail-gy0-f174.google.com ([209.85.160.174]:56083 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752981Ab0FAUOD convert rfc822-to-8bit (ORCPT ); Tue, 1 Jun 2010 16:14:03 -0400 Received: by gye5 with SMTP id 5so1501633gye.19 for ; Tue, 01 Jun 2010 13:14:03 -0700 (PDT) In-Reply-To: <20100601194924.GF4426@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Tue, Jun 1, 2010 at 3:49 PM, wrote: > On Tue, Jun 01, 2010 at 12:32:29PM -0700, Sunil Mushran wrote: >> >> We (ocfs2) are looking to add a new attribute to denote files that >> have a fixed allocation on disk. But at the same time, allow writes >> that do not change the allocation on disk. No truncating, extending, >> filling holes, etc. We were thinking of calling it "Static" files. > > That's an interesting set of semantics, and it might make sense to > conflate that with a local disk "don't move or defrag" the file > option. =A0I'm not crazy with the name "static", since it could mean = a > number of other things in other contexts, but I admit I can't think o= f > a better name. =46ROZEN? PRE-ALLOCATED? =46ALLOCATE_ONLY? =46ROZEN_ALLOCATION? STATIC_ALLOCATION? I like the last 2 choices myself. Greg -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html