Where is e4defrag?

Message

Cazzantonio · Post by **Cazzantonio** » Mon Dec 29, 2008 8:35 pm

I was trying out ext4 filesystem with kernel 2.6.28. I successfully converted an old ext3 fs to ext4 and I was searching for e4defrag to test online defragmentation (and to convert all files to use extents).
I have the latest version of e2fsprogs (1.41.3) and still can't find the e4defrag tool that is used to defragment an ext4 fs.
Where can I get it?

GODhack · Post by **GODhack** » Mon Dec 29, 2008 8:50 pm

I think you need version from git to get this.

sleipner · Post by **sleipner** » Sun Jan 25, 2009 12:11 pm

Code: Select all

wget http://www.kernel.org/pub/linux/kernel/people/tytso/ext4-patches/LATEST/broken-out.tar.bz2
tar -xjf broken-out.tar.bz2 broken-out/defrag-09-online-defrag-command
tail -n+18 broken-out/defrag-09-online-defrag-command > e4defrag.c
gcc -Wall e4defrag.c -o e4defrag

Cazzantonio · Post by **Cazzantonio** » Mon Jan 26, 2009 11:21 am

That "broken-out" scares me... I think I'll wait patiently to see it in e2fsprogs

Gusar · Post by **Gusar** » Mon Jan 26, 2009 1:35 pm

Cazzantonio wrote:That "broken-out" scares me... I think I'll wait patiently to see it in e2fsprogs

Broken-out means each change is in a separate patch instead of one huge patch that contains everything.

chris... · Post by **chris...** » Fri May 22, 2009 12:52 am

i tried the above and ran e4defrag on a directory

Code: Select all

        Success:                        [ 0/26 ]
        Failure:                        [ 26/26 ]

sleipner · Post by **sleipner** » Fri May 22, 2009 1:07 pm

it's really old stuff there..

you could try to build it from kernel.org git. there is more up to date patches for ext4 stuff anyway.

chris... · Post by **chris...** » Sat May 23, 2009 2:14 am

where is this new stuff?

sleipner · Post by **sleipner** » Sat May 23, 2009 6:10 am

http://git.kernel.org/?p=fs/ext2/ext4-p ... git;a=tree

chris... · Post by **chris...** » Sun May 24, 2009 1:41 am

looks to complex right now,
so defrag isnt in the current kernel?
i need more then just some application?

drescherjm · Post by **drescherjm** » Sun May 24, 2009 3:50 am

I do not believe that defrag it went into 2.6.29 although it may be be in 2.6.30. I know it was not in 2.6.28 unless backported.

chris... · Post by **chris...** » Mon Sep 28, 2009 11:13 am

any update on this?

drescherjm · Post by **drescherjm** » Mon Sep 28, 2009 6:05 pm

Still not ready.

https://bugs.launchpad.net/ubuntu/+bug/321528

Theodore Ts'o is the developer of ext4