lkml.org 
[lkml]   [2006]   [Jun]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Ext2-devel] [RFC 0/13] extents and 48bit ext3
Andreas Dilger wrote:
> The other issue is that adding a new "ext4" filesystem type will cause
> userspace tools to break that assume they know something about the
> filesystem type. They will all detect the filesystem as "ext3" and try
> to mount it as such, when the required kernel filesystem is ext4. Or
> we will need to have "mkfs.ext4", "fsck.ext4", etc, for no particular
> reason.

Yes, you want those tools, and you want to call the filesystem ext4.
Otherwise you'll never break free of the existing metadata formats
(which are apparently changing over time _anyway_).


> Either a system upgrades totally to ext4 to avoid the duplication of code
> in memory (and breaks ALL backward compatibility, for no good reason), or

Correct. You must upgrade totally to ext4.

And this happens ANYWAY once extents/etc. are enabled. Its an upgrade.

Jeff


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-06-09 22:33    [W:0.328 / U:0.384 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site