FS-Cache: Start processing an object's operations on that object's death

[safe/jmp/linux-2.6] / Documentation / filesystems / ocfs2.txt

diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index af6defd..c2a0871 100644 (file)
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -28,18 +28,9 @@ Manish Singh  <manish.singh@oracle.com>
 Caveats
 =======
 Features which OCFS2 does not support yet:
-       - sparse files
-       - extended attributes
-       - shared writable 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
 =============
@@ -54,3 +45,38 @@ 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.
+acl                    Enables POSIX Access Control Lists support.
+noacl          (*)     Disables POSIX Access Control Lists support.