Re: [Dump-users] Ext4 support ?

[Kenneth P. <sh...@se...>]

--On Friday, July 27, 2007 4:04 PM +0200 Stelian Pop <st...@po...> 
wrote:

> I'm afraid I haven't had time to look at ext4 yet.
>
> But dump does almost all filesystem access using libext2fs, so if
> libext2fs will support ext4, dump will follow.

An update: An interview with ext4 developer Eric Sandeen about the 
inclusion of ext4 in Fedora 9:

<http://fedoraproject.org/wiki/Interviews/EricSandeen>

It looks like the extent format should have an effect on dump:

> Probably the biggest "feature," which is not something end-users care
> about directly, is the new on-disk extent format. This allows the
> filesystem to keep track of file data in [offset, length] pairs rather
> than block-by-block, and this is much more efficient than the ext3
> mechanism. Deletion of large files should be noticeably faster, for
> example.

Also:

> Other features that will be nice for users include finer-grained
> timestamps, and a larger maximum subdirectory limit (now 65k subdirs).
> ext4 will also make use of in-inode extended attributes, which should
> make things like SELinux, beagle, and samba acls more efficient.