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Diffstat (limited to 'src/initramfs/scripts/etc/activate-swap')
| -rw-r--r-- | src/initramfs/scripts/etc/activate-swap | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/initramfs/scripts/etc/activate-swap b/src/initramfs/scripts/etc/activate-swap new file mode 100644 index 00000000..10cb42e9 --- /dev/null +++ b/src/initramfs/scripts/etc/activate-swap @@ -0,0 +1,30 @@ +#!/bin/sh +# Copyright (c) 2013 - OpenSLX GmbH +# +# This program is free software distributed under the GPL version 2. +# See http://openslx.org/COPYING +# +# If you have any feedback please consult http://openslx.org/feedback and +# send your feedback to feedback@openslx.org +# +# General information about OpenSLX can be found under http://openslx.org +# +# Initialize swap for OpenSLX linux stateless clients, both for swap on local +# disk partitions as well as compressed ramzswap or similar + +############################################################################# + +# depends on mount-disk.sh +# depends on availability of the appropriate kernel module/functionality + +# try to enable compressed RAM SWAP / ZRAM +if modprobe ${MODPRV} ramzswap 2>/dev/null && [ -f /usr/bin/rzscontrol ] ; then + rzscontrol /dev/ramzswap0 --init + swapon /dev/ramzswap0 2>/dev/null + #hdswap="# disk swap disabled because of enabled compressed ramswap" +elif modprobe ${MODPRV} zram 2>/dev/null ; then + # assign a quarter of total mem to zram + echo $(( $(free -k | awk '/^Mem:/ { print $2 }') * 256 )) > /sys/block/zram0/disksize + mkswap /dev/zram0 2>/dev/null + swapon /dev/zram0 2>/dev/null +fi |