[oe] [meta-oe][PATCH][V2] zram: Integrate an init script

[Koen Kooi]

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Op 18-09-12 21:35, Andrei Gherzan schreef:
> Signed-off-by: Andrei Gherzan <andrei at gherzan.ro> --- 
> meta-oe/recipes-extended/zram/zram/init         |   28 +++++++++++++++++ 
> meta-oe/recipes-extended/zram/zram/zram-load.sh |   37
> +++++++++++++++++++++++ meta-oe/recipes-extended/zram/zram_0.1.bb       |
> 24 +++++++++++++++ 3 files changed, 89 insertions(+) create mode 100644
> meta-oe/recipes-extended/zram/zram/init create mode 100644
> meta-oe/recipes-extended/zram/zram/zram-load.sh create mode 100644
> meta-oe/recipes-extended/zram/zram_0.1.bb
> 
> diff --git a/meta-oe/recipes-extended/zram/zram/init
> b/meta-oe/recipes-extended/zram/zram/init new file mode 100644 index
> 0000000..7bd8bcc --- /dev/null +++
> b/meta-oe/recipes-extended/zram/zram/init @@ -0,0 +1,28 @@ +#!/bin/bash 
> +### BEGIN INIT INFO +# Provides: zram +# Required-Start: +#
> Required-Stop: +# Default-Start: 2 3 4 5 +# Default-Stop: 0 1 6 +#
> Short-Description: Increased Performance In Linux With zRam (Virtual Swap
> Compressed in RAM) +### END INIT INFO +set -e + +case "$1" in +
> start) +        zram-load.sh --load +        ;; +    stop) +
> zram-load.sh --unload +        ;; +    restart) +        zram-load.sh
> --unload +        sleep 3 +        zram-load.sh --load +        ;; +
> *) +        echo "Usage: $0 {start|stop|restart}" +        RETVAL=1 
> +esac +exit $RETVAL diff --git
> a/meta-oe/recipes-extended/zram/zram/zram-load.sh
> b/meta-oe/recipes-extended/zram/zram/zram-load.sh new file mode 100644 
> index 0000000..786cd0c --- /dev/null +++
> b/meta-oe/recipes-extended/zram/zram/zram-load.sh @@ -0,0 +1,37 @@ 
> +#!/bin/sh + +num_cpus=$(grep -c processor /proc/cpuinfo) +[ "$num_cpus"
> != 0 ] || num_cpus=1 + +last_cpu=$((num_cpus - 1)) + +mem_by_cpu=$(awk -v
> cpus=$num_cpus '/MemTotal/ { print (($2 * 1024) / cpus) }'
> /proc/meminfo) + +if [ "$1" = "--load" ] ; then +	echo zram: Trying to
> load kernel module. + +	# Linux 3.2 workaround - value name changed :o. +
> modprobe -q zram zram_num_devices=$num_cpus + +	# Linux < 3.2. +
> #modprobe -q zram num_devices=$num_cpus + +	echo zram: Enable in-memory
> compressed swap of $mem_by_cpu bytes. +	for i in $(seq 0 $last_cpu); do +
> echo 1 > /sys/block/zram$i/reset +		echo $mem_by_cpu >
> /sys/block/zram$i/disksize +		mkswap /dev/zram$i +		swapon -p 100
> /dev/zram$i +	done +fi + +if [ "$1" = "--unload" ] ; then +	echo zram:
> Disable in-memory compressed swap. +	for i in $(seq 0 $last_cpu); do +
> grep -q "/dev/zram$i" /proc/swaps && swapoff /dev/zram$i +	done + +	sleep
> 1 +	echo zram: Unload kernel module. +	rmmod zram +fi diff --git
> a/meta-oe/recipes-extended/zram/zram_0.1.bb
> b/meta-oe/recipes-extended/zram/zram_0.1.bb new file mode 100644 index
> 0000000..dd59784 --- /dev/null +++
> b/meta-oe/recipes-extended/zram/zram_0.1.bb @@ -0,0 +1,24 @@ +DESCRIPTION
> = "Linux zram compressed in-memory swap" +LICENSE = "MIT" 
> +LIC_FILES_CHKSUM =
> "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58" + 
> +inherit allarch update-rc.d + +RDEPENDS_${PN} = "util-linux-swaponoff
> kmod kernel-module-zram"

You are never allowed to RDEPEND on a kernel-module, imagine what happens
when it's builtin. Also R* variables go below do_install

> + +PR = "r0"

Remove that

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