From mboxrd@z Thu Jan 1 00:00:00 1970 From: Amir Goldstein Subject: Re: Next3 on-disk format change request Date: Thu, 24 Jun 2010 08:33:47 +0300 Message-ID: References: <20100624003529.GF6843@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Andreas Dilger , Ext4 Developers List To: tytso@mit.edu Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:49841 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751249Ab0FXFdt convert rfc822-to-8bit (ORCPT ); Thu, 24 Jun 2010 01:33:49 -0400 Received: by fxm3 with SMTP id 3so40157fxm.19 for ; Wed, 23 Jun 2010 22:33:47 -0700 (PDT) In-Reply-To: <20100624003529.GF6843@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Thu, Jun 24, 2010 at 3:35 AM, wrote: > On Tue, Jun 22, 2010 at 01:30:54PM +0300, Amir Goldstein wrote: >> My on-disk format change request is to re-assign a ro_compat feature >> for IS_SNAPSHOT (currently in s_flags). > > OK, so in addition to: > > #define EXT4_FEATURE_RO_COMPAT_HAS_SNAPSHOT =A0 =A0 0x0080 > > You would also like: > > #define EXT4_FEATURE_RO_COMPAT_IS_SNAPSHOT =A0 =A0 =A00x0100 > > which is a feature flag that the kernel will never support, since thi= s > is a hint that snapshot should only be mounted read-only, correct? > That is correct. -- 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