Re: [PATCH] ext2 docs
From: Marcelo Tosatti
Date: Mon Nov 08 2004 - 15:52:48 EST
On Mon, Nov 08, 2004 at 02:55:42PM +0100, Andries Brouwer wrote:
> 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.
> 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
> -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/.)
Did you really mean to use the second link "14446" ?
It points to a patch from Ted fixing a memory leak into the Orlov allocator,
which is not very useful.
You probably meant http://lwn.net/Articles/14447/, which contains the full
Orlov ext3 patch?
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