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Subject[PATCH] ext2 docs
Below an update of ext2.txt.
Removed barrier - it is not an ext2 option.
Corrected the distinction between kernel-selected defaults
and values read from the filesystem.
Fixed some typos. Shortened line length to 80.

Andries

diff -uprN -X /linux/dontdiff a/Documentation/filesystems/ext2.txt b/Documentation/filesystems/ext2.txt
--- a/Documentation/filesystems/ext2.txt 2004-10-30 21:43:59.000000000 +0200
+++ b/Documentation/filesystems/ext2.txt 2004-11-08 14:41:22.000000000 +0100
@@ -11,57 +11,53 @@ for NetBSD, FreeBSD, the GNU HURD, Windo
Options
=======

-When mounting an ext2 filesystem, the following options are accepted.
-Defaults are marked with (*).
+Most defaults are determined by the filesystem superblock, and can be
+set using tune2fs(8). Kernel-determined defaults are indicated by (*).

bsddf (*) Makes `df' act like BSD.
minixdf Makes `df' act like Minix.

-barrier=1 This enables/disables barriers. barrier=0 disables it,
- barrier=1 enables it.
-
-orlov (*) This enables the new Orlov block allocator. It's
- enabled by default.
-
-oldalloc This disables the Orlov block allocator and
- enables the old block allocator. Orlov should
- have better performance, we'd like to get some
- feedback if it's the contrary for you.
-
-user_xattr (*) Enables POSIX Extended Attributes. It's enabled by
- default, however you need to confifure its support
- (CONFIG_EXT2_FS_XATTR). This is neccesary if you want
- to use POSIX Acces Control Lists support. You can visit
- http://acl.bestbits.at to know more about POSIX Extended
- attributes.
-
-nouser_xattr Disables POSIX Extended Attributes.
-
-acl (*) Enables POSIX Access Control Lists support. This is
- enabled by default, however you need to configure
- its support (CONFIG_EXT2_FS_POSIX_ACL). If you want
- to know more about ACLs visit http://acl.bestbits.at
-
-noacl This option disables POSIX Access Control List support.
-
+check Check block and inode bitmaps at mount time
+ (requires CONFIG_EXT2_CHECK).
check=none, nocheck (*) Don't do extra checking of bitmaps on mount
(check=normal and check=strict options removed)

debug Extra debugging information is sent to the
kernel syslog. Useful for developers.

-errors=continue (*) Keep going on a filesystem error.
+errors=continue Keep going on a filesystem error.
errors=remount-ro Remount the filesystem read-only on an error.
errors=panic Panic and halt the machine if an error occurs.

grpid, bsdgroups Give objects the same group ID as their parent.
-nogrpid, sysvgroups (*) New objects have the group ID of their creator.
+nogrpid, sysvgroups New objects have the group ID of their creator.
+
+nouid32 Use 16-bit UIDs and GIDs.
+
+oldalloc Enable the old block allocator. Orlov should
+ have better performance, we'd like to get some
+ feedback if it's the contrary for you.
+orlov (*) Use the Orlov block allocator.
+ (See http://lwn.net/Articles/14633/ and
+ http://lwn.net/Articles/14446/.)

resuid=n The user ID which may use the reserved blocks.
-resgid=n The group ID which may use the reserved blocks.
+resgid=n The group ID which may use the reserved blocks.

sb=n Use alternate superblock at this location.

+user_xattr Enable "user." POSIX Extended Attributes
+ (requires CONFIG_EXT2_FS_XATTR).
+ See also http://acl.bestbits.at
+nouser_xattr Don't support "user." extended attributes.
+
+acl Enable POSIX Access Control Lists support
+ (requires CONFIG_EXT2_FS_POSIX_ACL).
+ See also http://acl.bestbits.at
+noacl Don't support POSIX ACLs.
+
+nobh Do not attach buffer_heads to file pagecache.
+
grpquota,noquota,quota,usrquota Quota options are silently ignored by ext2.


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