[lc-devel] LZO to kernel mode

[Nitin G. <nit...@gm...>]

Hi All,

Just finished porting LZO (ver 2.02) to kernel mode. The attached file
is a kernel module (compress-test) that I created to test these kernel
ports of de/compression algorithms. This module has been much refined
since it was last posted.

Now, two algos are ported - LZO and WKdm (WK4x4 also soon). You can
test both of them using this module. It creates 3 /proc entries:
/proc/compress-test/{compress, decompress, algo_idx}.

---------------------
* In short:

Write to /proc/compress-test entries:
1. compress: compress data witten to it and store in internal buffer.
2. algo_idx: write index of algo you want to test (0: WKdm, 1: LZO)

Read from /proc/compress-test entries:
1. compress: show original and compressed size (TODO: add other stats
like time taken too)
2. decompress: decompress compressed data stored in internal buffer.
3. algo_idx: shows list of algos supported with their index.
----------------------

* commited these two algos to CVS in linux26/lib/{WKdm, LZO}

* linux-mm.org/CompressedCaching/Code page has been updated -- this
module (with both these algos) is available there.

* TODO Next: get virt swap actually working.


Cheers,
Nitin Gupta