From mboxrd@z Thu Jan 1 00:00:00 1970 From: Theodore Ts'o Subject: Re: [PATCH 4/8] ext4: store checksum seed in superblock Date: Thu, 15 Oct 2015 10:45:29 -0400 Message-ID: <20151015144529.GH17329@thunk.org> References: <20151012215416.28872.8160.stgit@birch.djwong.org> <20151012215444.28872.23113.stgit@birch.djwong.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: "Darrick J. Wong" Return-path: Received: from imap.thunk.org ([74.207.234.97]:52052 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751420AbbJOOpd (ORCPT ); Thu, 15 Oct 2015 10:45:33 -0400 Content-Disposition: inline In-Reply-To: <20151012215444.28872.23113.stgit@birch.djwong.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Mon, Oct 12, 2015 at 02:54:44PM -0700, Darrick J. Wong wrote: > Allow the filesystem to store the metadata checksum seed in the > superblock and add an incompat feature to say that we're using it. > This enables tune2fs to change the UUID on a mounted metadata_csum > FS without having to (racy!) rewrite all disk metadata. > > Signed-off-by: Darrick J. Wong Applied, thanks. - Ted