+.. SPDX-License-Identifier: GPL-2.0
+
+================
OCFS2 filesystem
-==================
+================
+
OCFS2 is a general purpose extent based shared disk cluster file
system with many similarities to ext3. It supports 64 bit inode
numbers, and has automatically extending metadata groups which may
All code copyright 2005 Oracle except when otherwise noted.
-CREDITS:
+Credits
+=======
+
Lots of code taken from ext3 and other projects.
Authors in alphabetical order:
-Joel Becker <joel.becker@oracle.com>
-Zach Brown <zach.brown@oracle.com>
-Mark Fasheh <mfasheh@suse.com>
-Kurt Hackel <kurt.hackel@oracle.com>
-Tao Ma <tao.ma@oracle.com>
-Sunil Mushran <sunil.mushran@oracle.com>
-Manish Singh <manish.singh@oracle.com>
-Tiger Yang <tiger.yang@oracle.com>
+
+- Joel Becker <joel.becker@oracle.com>
+- Zach Brown <zach.brown@oracle.com>
+- Mark Fasheh <mfasheh@suse.com>
+- Kurt Hackel <kurt.hackel@oracle.com>
+- Tao Ma <tao.ma@oracle.com>
+- Sunil Mushran <sunil.mushran@oracle.com>
+- Manish Singh <manish.singh@oracle.com>
+- Tiger Yang <tiger.yang@oracle.com>
Caveats
=======
Features which OCFS2 does not support yet:
+
- Directory change notification (F_NOTIFY)
- Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)
=============
OCFS2 supports the following mount options:
+
(*) == default
+======================= ========================================================
barrier=1 This enables/disables barriers. barrier=0 disables it,
barrier=1 enables it.
errors=remount-ro(*) Remount the filesystem read-only on an error.
for descriptor blocks. If enabled older kernels cannot
mount the device. This will enable 'journal_checksum'
internally.
+======================= ========================================================