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Commit ccd979bd authored by Mark Fasheh's avatar Mark Fasheh Committed by Joel Becker
Browse files

[PATCH] OCFS2: The Second Oracle Cluster Filesystem 



The OCFS2 file system module.

Signed-off-by: default avatarMark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: default avatarKurt Hackel <kurt.hackel@oracle.com>
parent 8df08c89

Documentation/filesystems/00-INDEX

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@@ -36,6 +36,8 @@ ntfs.txt 
	- info and mount options for the NTFS filesystem (Windows NT).

proc.txt

	- info on Linux's /proc filesystem.

ocfs2.txt

	- info and mount options for the OCFS2 clustered filesystem.

romfs.txt

	- Description of the ROMFS filesystem.

smbfs.txt

Documentation/filesystems/ocfs2.txt

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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

also make it attractive for non-clustered use.



You'll want to install the ocfs2-tools package in order to at least

get "mount.ocfs2" and "ocfs2_hb_ctl".



Project web page:    http://oss.oracle.com/projects/ocfs2

Tools web page:      http://oss.oracle.com/projects/ocfs2-tools

OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/



All code copyright 2005 Oracle except when otherwise noted.



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   <mark.fasheh@oracle.com>

Kurt Hackel   <kurt.hackel@oracle.com>

Sunil Mushran <sunil.mushran@oracle.com>

Manish Singh  <manish.singh@oracle.com>



Caveats

=======

Features which OCFS2 does not support yet:

	- sparse files

	- extended attributes

	- shared writeable mmap

	- loopback is supported, but data written will not

	  be cluster coherent.

	- quotas

	- cluster aware flock

	- Directory change notification (F_NOTIFY)

	- Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)

	- POSIX ACLs

	- readpages / writepages (not user visible)



Mount options

=============



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.

errors=panic		Panic and halt the machine if an error occurs.

intr		(*)	Allow signals to interrupt cluster operations.

nointr			Do not allow signals to interrupt cluster

			operations.

MAINTAINERS

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@@ -1905,6 +1905,15 @@ M: ajoshi@shell.unixbox.com 
L:	linux-nvidia@lists.surfsouth.com

S:	Maintained



ORACLE CLUSTER FILESYSTEM 2 (OCFS2)

P:	Mark Fasheh

M:	mark.fasheh@oracle.com

P:	Kurt Hackel

M:	kurt.hackel@oracle.com

L:	ocfs2-devel@oss.oracle.com

W:	http://oss.oracle.com/projects/ocfs2/

S:	Supported	



OLYMPIC NETWORK DRIVER

P:	Peter De Shrijver

M:	p2@ace.ulyssis.student.kuleuven.ac.be

fs/ocfs2/Makefile

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EXTRA_CFLAGS += -Ifs/ocfs2



EXTRA_CFLAGS += -DCATCH_BH_JBD_RACES



obj-$(CONFIG_OCFS2_FS) += ocfs2.o



ocfs2-objs := \

	alloc.o 		\

	aops.o 			\

	buffer_head_io.o	\

	dcache.o 		\

	dir.o 			\

	dlmglue.o 		\

	export.o 		\

	extent_map.o 		\

	file.o 			\

	heartbeat.o 		\

	inode.o 		\

	journal.o 		\

	localalloc.o 		\

	mmap.o 			\

	namei.o 		\

	slot_map.o 		\

	suballoc.o 		\

	super.o 		\

	symlink.o 		\

	sysfile.o 		\

	uptodate.o		\

	ver.o 			\

	vote.o



obj-$(CONFIG_OCFS2_FS) += cluster/

obj-$(CONFIG_OCFS2_FS) += dlm/