X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=Documentation%2Ffilesystems%2Focfs2.txt;h=4389c684a80a66d402f464a4ecf3ed7a15bda1bb;hb=6b2ada82101a08e2830fb29d7dc9b858be637dd4;hp=f2595caf052e155c2a809bf4a9ae98b94e06802e;hpb=944d79559d154c12becde0dab327016cf438f46c;p=linux-2.6-block.git

diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index f2595caf052e..4340cc825796 100644
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -28,17 +28,13 @@ 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
+	- cluster aware lockf
 	- Directory change notification (F_NOTIFY)
 	- Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)
 	- POSIX ACLs
-	- readpages / writepages (not user visible)
 
 Mount options
 =============
@@ -53,3 +49,36 @@ 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.
+atime_quantum=60(*)	OCFS2 will not update atime unless this number
+			of seconds has passed since the last update.
+			Set to zero to always update atime.
+data=ordered	(*)	All data are forced directly out to the main file
+			system prior to its metadata being committed to the
+			journal.
+data=writeback		Data ordering is not preserved, data may be written
+			into the main file system after its metadata has been
+			committed to the journal.
+preferred_slot=0(*)	During mount, try to use this filesystem slot first. If
+			it is in use by another node, the first empty one found
+			will be chosen. Invalid values will be ignored.
+commit=nrsec	(*)	Ocfs2 can be told to sync all its data and metadata
+			every 'nrsec' seconds. The default value is 5 seconds.
+			This means that if you lose your power, you will lose
+			as much as the latest 5 seconds of work (your
+			filesystem will not be damaged though, thanks to the
+			journaling).  This default value (or any low value)
+			will hurt performance, but it's good for data-safety.
+			Setting it to 0 will have the same effect as leaving
+			it at the default (5 seconds).
+			Setting it to very large values will improve
+			performance.
+localalloc=8(*)		Allows custom localalloc size in MB. If the value is too
+			large, the fs will silently revert it to the default.
+			Localalloc is not enabled for local mounts.
+localflocks		This disables cluster aware flock.
+inode64			Indicates that Ocfs2 is allowed to create inodes at
+			any location in the filesystem, including those which
+			will result in inode numbers occupying more than 32
+			bits of significance.
+user_xattr	(*)	Enables Extended User Attributes.
+nouser_xattr		Disables Extended User Attributes.