Re: [ptxdist] [PATCH v2] image_squashfs: Add possibility for LZO compression

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Mon, Jan 30, 2012 at 04:37:41PM +0100, Alexander Stein wrote:
> Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
> ---
> Changes in v2:
> * Add proposed changes from Michael

Tnx. Applied.

Michael

> 
>  platforms/image_squashfs.in    |   28 ++++++++++++++++++++++++++++
>  rules/post/image_squashfs.make |    1 +
>  2 files changed, 29 insertions(+), 0 deletions(-)
> 
> diff --git a/platforms/image_squashfs.in b/platforms/image_squashfs.in
> index 0d652d9..70bb140 100644
> --- a/platforms/image_squashfs.in
> +++ b/platforms/image_squashfs.in
> @@ -37,6 +37,34 @@ choice
>  
>  endchoice
>  
> +choice
> +	prompt "squashfs compression mode"
> +	depends on HOST_SQUASHFS_TOOLS_V4X
> +	help
> +	  Select your prefered compression mode. GZIP seems to have a better
> +	  compression rate while LZO is faster then GZIP. This will make a difference
> +	  in mount time of your filesystem depending on your hardware configuration.
> +
> +	config HOST_SQUASHFS_COMPRESSION_MODE_GZIP
> +	bool "gzip"
> +	help
> +	  Select your prefered compression mode. GZIP seems to have a better
> +	  compression rate while LZO is faster then GZIP. This will make a difference
> +	  in mount time of your filesystem depending on your hardware configuration.
> +
> +	config HOST_SQUASHFS_COMPRESSION_MODE_LZO
> +	bool "lzo"
> +	help
> +	  Select your prefered compression mode. GZIP seems to have a better
> +	  compression rate while LZO is faster then GZIP. This will make a difference
> +	  in mount time of your filesystem depending on your hardware configuration.
> +endchoice
> +
> +config HOST_SQUASHFS_COMPRESSION_MODE
> +        string
> +        default "gzip" if HOST_SQUASHFS_COMPRESSION_MODE_GZIP
> +        default "lzo" if HOST_SQUASHFS_COMPRESSION_MODE_LZO
> +
>  config IMAGE_SQUASHFS_BLOCK_SIZE
>  	string
>  	default "${PTXCONF_FLASH_BLOCKSIZE}"
> diff --git a/rules/post/image_squashfs.make b/rules/post/image_squashfs.make
> index 5462199..fdefadf 100644
> --- a/rules/post/image_squashfs.make
> +++ b/rules/post/image_squashfs.make
> @@ -12,6 +12,7 @@ SEL_ROOTFS-$(PTXCONF_IMAGE_SQUASHFS)	+= $(IMAGEDIR)/root.squashfs
>  
>  IMAGE_SQUASHFS_EXTRA_ARGS := \
>  	$(call ptx/ifdef, PTXCONF_HOST_SQUASHFS_TOOLS_V3X, $(call ptx/ifdef, PTXCONF_ENDIAN_BIG, -be, -le), ) \
> +	$(call ptx/ifdef, PTXCONF_HOST_SQUASHFS_TOOLS_V4X, -comp $(PTXCONF_HOST_SQUASHFS_COMPRESSION_MODE), ) \
>  	$(PTXCONF_IMAGE_SQUASHFS_EXTRA_ARGS)
>  
>  $(IMAGEDIR)/root.squashfs: $(STATEDIR)/image_working_dir $(STATEDIR)/host-squashfs-tools.install.post
> -- 
> 1.7.3.4
> 
> 
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> 

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