You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.7 KiB
60 lines
1.7 KiB
# Calculate chmod=0755
|
|
#!/sbin/openrc-run
|
|
# Copyright 2020 Mir Calculate. http://www.calculate-linux.org
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
depend()
|
|
{
|
|
after clock root swap
|
|
before localmount
|
|
keyword -docker -jail -lxc -openvz -prefix -systemd-nspawn -vserver
|
|
}
|
|
|
|
start()
|
|
{
|
|
[[ -d /sys/block/zram0 ]] || modprobe zram
|
|
if [[ -d /sys/block/zram0 ]]
|
|
then
|
|
if [[ $START == "always" ]] || [[ -z $(swapon --noheading) ]]
|
|
then
|
|
ebegin "Activating zram swap devices"
|
|
local disksize;
|
|
echo ${COMPRESSION:-zstd} >/sys/block/zram0/comp_algorithm
|
|
if [[ ${DISKSIZE:-200%} =~ ^([0-9]+)%$ ]]
|
|
then
|
|
local perc="${BASH_REMATCH[1]}"
|
|
local memorysize="$(free -b | awk '{if ($1 == "Mem:") {print $2}}')"
|
|
disksize="$(( $memorysize * $perc / 100 ))"
|
|
else
|
|
disksize="${DISKSIZE}"
|
|
fi
|
|
echo $disksize >/sys/block/zram0/disksize
|
|
mkswap -L zramswap /dev/zram0
|
|
swapon -p 100 /dev/zram0 &>/dev/null
|
|
fi
|
|
fi
|
|
eend 0 # If swapon has nothing todo it errors, so always return 0
|
|
}
|
|
|
|
stop()
|
|
{
|
|
if [[ ${RC_RUNLEVEL} != "shutdown" ]] && [[ -n $(swapon --noheading | grep /dev/zram0) ]]
|
|
then
|
|
ebegin "Deactivating zram swap devices"
|
|
swapoff /dev/zram0 &>/dev/null
|
|
echo 1 >/sys/block/zram0/reset
|
|
fi
|
|
eend 0
|
|
}
|