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Date: Mon, 30 Jan 2012 15:11:45 +0100
From: Michael Olbrich <m.olbrich@pengutronix.de>
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Subject: Re: [ptxdist] [PATCH 2/2] image_squashfs: Add possibility for LZO
 compression
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On Mon, Jan 30, 2012 at 12:35:25PM +0100, Alexander Stein wrote:
> Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
> ---
>  platforms/image_squashfs.in    |   23 +++++++++++++++++++++++
>  rules/post/image_squashfs.make |    2 ++
>  2 files changed, 25 insertions(+), 0 deletions(-)
> 
> diff --git a/platforms/image_squashfs.in b/platforms/image_squashfs.in
> index 0d652d9..43de03b 100644
> --- a/platforms/image_squashfs.in
> +++ b/platforms/image_squashfs.in
> @@ -37,6 +37,29 @@ 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 "${PTXCONF_FLASH_BLOCKSIZE}"
> diff --git a/rules/post/image_squashfs.make b/rules/post/image_squashfs.make
> index 5462199..6a260db 100644
> --- a/rules/post/image_squashfs.make
> +++ b/rules/post/image_squashfs.make
> @@ -12,6 +12,8 @@ SEL_ROOTFS-$(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, $(call ptx/ifdef, PTXCONF_HOST_SQUASHFS_COMPRESSION_MODE_GZIP, -comp gzip,),) \
> +	$(call ptx/ifdef, PTXCONF_HOST_SQUASHFS_TOOLS_V4X, $(call ptx/ifdef, PTXCONF_HOST_SQUASHFS_COMPRESSION_MODE_LZO, -comp lzo,),) \

	$(call ptx/ifdef, PTXCONF_HOST_SQUASHFS_TOOLS_V4X, -comp $(PTXCONF_HOST_SQUASHFS_COMPRESSION_MODE,) \

instead.

>  	$(PTXCONF_IMAGE_SQUASHFS_EXTRA_ARGS)
>  
>  $(IMAGEDIR)/root.squashfs: $(STATEDIR)/image_working_dir $(STATEDIR)/host-squashfs-tools.install.post
> -- 
> 1.7.3.4
> 
> 
> -- 
> ptxdist mailing list
> ptxdist@pengutronix.de
> 

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