linux-ext4 - Fwd: can't get e4defrag to work

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Message-ID: <7a45233b0901301307t5f045ddflc9fdbeb48bbcad0@mail.gmail.com>
Date:	Fri, 30 Jan 2009 22:07:53 +0100
From:	Derkjan de Haan <haanjdj@...il.com>
To:	Akira Fujita <a-fujita@...jp.nec.com>, linux-ext4@...r.kernel.org
Subject: Fwd: can't get e4defrag to work

I would like to report the following issues:

- the patch doesn't apply cleanly to 2.6.29-rc3:

Applying patch patches/1
patching file fs/ext4/Makefile
patching file fs/ext4/defrag.c
patching file fs/ext4/ext4.h
Hunk #1 succeeded at 303 (offset 10 lines).
Hunk #2 succeeded at 312 with fuzz 2 (offset -2 lines).
Hunk #3 succeeded at 1033 (offset 9 lines).
patching file fs/ext4/ext4_extents.h
patching file fs/ext4/extents.c
patching file fs/ext4/ioctl.c
Hunk #2 succeeded at 215 (offset -11 lines).

Applying patch patches/2
patching file fs/ext4/defrag.c

Now at patch patches/2

- I just found out e4defrag needs to be compiled with the -lm flag due
to the powf function being used.

- When compiling ext4 as a module, the kernel build fails on this error:

ERROR: "fget_light" [fs/ext4/ext4.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

After that, I compiled a kernel with ext4 built in, and that one built
OK. I now have a working e4defrag; thanks for your work on this!

regards,

Derkjan
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