Re: [PATCH] ext4: Group meta-data blocks together.

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On Thu, May 15, 2008 at 09:23:59PM +0530, Aneesh Kumar K.V wrote:
> This adds a per inode meta-block prealloc space from which
> meta-data block requests are served. This help in making
> sure meta-data block are closer. This is needed to speedup
> unlink of the file. Any new prealloc space is allocated near
> the goal block specified. The goal block is the last block
> allocated for the file. So we don't keep the data-block and
> meta-data block far apart.
> 

The result can be found at

http://www.radian.org/~kvaneesh/ext4/meta-group/

This patch need to be further improved by grouping the meta-data
at FLEX_BG or block group level rather than per inode. I am sending
it so that others can take a look at the changes

-aneesh

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