linux-ext4 - Re: [PATCH 00/11] e4defrag: fragmentation score rework and cleanups

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Message-ID: <4DAD27A2.60208@sx.jp.nec.com>
Date:	Tue, 19 Apr 2011 15:11:46 +0900
From:	Kazuya Mio <k-mio@...jp.nec.com>
To:	ext4 <linux-ext4@...r.kernel.org>, Theodore Tso <tytso@....edu>
Subject: Re: [PATCH 00/11] e4defrag: fragmentation score rework and cleanups

Hi Ted,
Do you have any comments on this?

2011/04/08 16:50, Kazuya Mio wrote:
> Hi,
> 
> This patch set adds the new function get_fragment_score() to libe2p, that
> calculates the fragmentation score. Fragmentation score shows how badly
> fragmented the file might be. filefrag uses it to make a user understand
> the status of the file fragmentation easily. And e4defrag also uses it
> to determine smarter whether to call EXT4_IOC_MOVE_EXT ioctl. This improvement
> is based on the following Ted's idea.
> http://marc.info/?l=linux-ext4&m=129324612305011&w=4
> 
> In addition, the 6th to the last is bugfix or cleanup patch.
> 
> This patch set is for e2fsprogs git tree. (commit:5af9eeaa7d)
> 
> Kazuya Mio (11):
>    libe2p: Add new function get_fragment_score()
>    filefrag: Output fragmentation score
>    e4defrag: Remove -c option which check the file fragments
>    e4defrag: Remove old fragmentation score calculation code
>    e4defrag: Use get_fragment_score() for decision of whether to defrag
>    e4defrag: Allow user who has read+write permission to defrag
>    e4defrag: Fix memory leak in file_defrag()
>    e4defrag: Use blk64_t instead of ext4_fsblk_t
>    e4defrag: Use EXT2_SUPER_MAGIC instead of EXT4_SUPER_MAGIC
>    e4defrag: Fix error messages more clearly
>    e4defrag: Remove unnecessary code
> 
>   lib/e2p/Makefile.in      |    6
>   lib/e2p/e2p.h            |    2
>   lib/e2p/fragment_score.c |  142 +++++++
>   misc/Makefile.in         |    8
>   misc/e4defrag.8.in       |   30 -
>   misc/e4defrag.c          |  889 +++++------------------------------------------
>   misc/filefrag.c          |   28 +
>   7 files changed, 288 insertions(+), 817 deletions(-)
> 
> Regards,
> Kazuya Mio
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