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Add LZO1X algorithm to the kernel

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This is a hybrid version of the patch to add the LZO1X compression
algorithm to the kernel.  Nitin and myself have merged the best parts of
the various patches to form this version which we're both happy with (and
are jointly signing off).

The performance of this version is equivalent to the original minilzo code
it was based on.  Bytecode comparisons have also been made on ARM, i386 and
x86_64 with favourable results.

There are several users of LZO lined up including jffs2, crypto and reiser4
since its much faster than zlib.

Signed-off-by: Nitin Gupta <nitingupta910@gmail.com>
Signed-off-by: Richard Purdie <rpurdie@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Purdie
2007-07-10 17:22:24 -07:00
committed by Linus Torvalds
parent 4c75f7416f
commit 64c70b1cf4
7 changed files with 580 additions and 0 deletions
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6
lib/Kconfig
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@ -64,6 +64,12 @@ config ZLIB_INFLATE
config ZLIB_DEFLATE
tristate
config LZO_COMPRESS
tristate
config LZO_DECOMPRESS
tristate
#
# Generic allocator support is selected if needed
#