From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Fri, 5 Sep 2008 02:32:02 +0200 Subject: [Ocfs2-devel] [PATCH 3/3] ocfs2: Switch over to JBD2. In-Reply-To: <1220497421-8606-4-git-send-email-joel.becker@oracle.com> References: <1220497421-8606-1-git-send-email-joel.becker@oracle.com> <1220497421-8606-4-git-send-email-joel.becker@oracle.com> Message-ID: <20080905003202.GC29097@lst.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ocfs2-devel@oss.oracle.com On Wed, Sep 03, 2008 at 08:03:41PM -0700, Joel Becker wrote: > ocfs2 wants JBD2 for many reasons, not the least of which is that JBD is > limiting our maximum filesystem size. > > It's a pretty trivial change. Most functions are just renamed. The > only functional change is moving to Jan's inode-based ordered data mode. > It's better, too. > > Because JBD2 reads and writes JBD journals, this is compatible with any > existing filesystem. It can even interact with JBD-based ocfs2 as long > as the journal is formated for JBD. > > We provide a compatibility option so that paranoid people can still use > JBD for the time being. This will go away shortly. Having to parallel codepathes switched by a little option is a really bad idea. Those paranoid people (if they exist at all) should just stick to an old kernel.