From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tao Ma Date: Thu, 05 Jun 2008 15:16:33 +0800 Subject: [Ocfs2-devel] [PATCH 0/8] ocfs2: Add extended attributes for ocfs2. V1 Message-ID: <484792D1.3080802@oracle.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ocfs2-devel@oss.oracle.com Hi all, Extended attributes are used for storing POSIX ACLs, SELinux labels, and user accessible metadata. They are essential for deploying file systems exported for workgroup use via samba. The following patches implement extended attributes on the OCFS2 file system. Patch 1-4: The refactoring of extent tree operation. xattr will use ocfs2_extent_list for both the large EA and large numbers of EA. So we need some refactoring so that the old code can work with them. Patch 5: Add ocfs2 xattr header. Patch 6: Add operations for storing large EA in ocfs2. This is also refactor the old extent tree a little. Patch 7: The extended attributes for ocfs2. It enables extended attributes storage for both in-inode and one meta block. The main design doc can be found at http://oss.oracle.com/osswiki/OCFS2/DesignDocs/ExtendedAttributes. Patch 8: Enables storing large numbers of EAs in ocfs2. The main design doc can be found at http://oss.oracle.com/osswiki/OCFS2/DesignDocs/IndexedEATrees. The main process is almost the same, but some difference is described in detail in that patch. Regards, Tiger and Tao