Date: Mon, 8 Nov 2004 15:30:07 -0200
From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
To: Andries Brouwer <Andries.Brouwer@cwi.nl>
Cc: torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ext2 docs
Message-ID: <20041108173007.GB2900@logos.cnet>
References: <20041108135541.GA23052@apps.cwi.nl>
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Hi Andries,

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.
> 
> 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/.)

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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