[PATCH 2/5] jffs2: Add LZO compression support to jffs2

Randy Dunlap randy.dunlap at oracle.com
Tue May 1 16:00:05 EDT 2007


On Tue, 01 May 2007 15:47:03 +0100 Richard Purdie wrote:

> Add LZO1X compression/decompression support to jffs2.
> 
> LZO's interface doesn't entirely match that required by jffs2 so a
> buffer and memcpy is unavoidable.
> 
> Signed-off-by: Richard Purdie <rpurdie at openedhand.com>
> ---
> 
> diff --git a/fs/Kconfig b/fs/Kconfig
> index a42f767..1645dfa 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -1310,6 +1310,16 @@ config JFFS2_ZLIB
>  
>            Say 'Y' if unsure.
>  
> +config JFFS2_LZO
> +	bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
> +	select LZO
> +	depends on JFFS2_FS
> +	default y
> +        help
> +          minilzo-based compression. Generally works better than Zlib.
> +
> +          Say 'Y' if unsure.

Use <tab> on the "help" line (instead of spaces) and
use <tab><space><space> on the help text lines.

>  config JFFS2_RTIME
>  	bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
>  	depends on JFFS2_FS

---
~Randy
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