tests/test_cgroup

   1 #!/bin/sh -eux
   2 # SPDX-License-Identifier: LGPL-2.1+
   3
   4 PASS=0
   5 UUID=$(uuidgen)
   6
   7 cleanup() {
   8     [ "$PASS" = "1" ] || (echo FAIL && exit 1)
   9 }
  10
  11 LXCFSDIR=${LXCFSDIR:-/var/lib/lxcfs}
  12
  13 trap cleanup EXIT HUP INT TERM
  14
  15 if ! mountpoint -q ${LXCFSDIR}; then
  16     echo "lxcfs isn't mounted on ${LXCFSDIR}"
  17     exit 1
  18 fi
  19
  20 for c in memory freezer cpuset; do
  21         [ ! -d /sys/fs/cgroup/${c} ] && exit 0
  22 done
  23
  24 initcpuset=`awk -F: '/cpuset/ { print $3 }' /proc/1/cgroup`
  25 initmemory=`awk -F: '/memory/ { print $3 }' /proc/1/cgroup`
  26 initfreezer=`awk -F: '/freezer/ { print $3 }' /proc/1/cgroup`
  27
  28 cpupath=/sys/fs/cgroup/cpuset/${initcpuset}
  29 mempath=/sys/fs/cgroup/memory/${initmemory}
  30 frzpath=/sys/fs/cgroup/freezer/${initfreezer}
  31
  32 rmdir ${cpupath}/${UUID} || true
  33 rmdir ${mempath}/${UUID} || true
  34 rmdir ${frzpath}/${UUID} || true
  35 mkdir ${cpupath}/${UUID}
  36 mkdir ${mempath}/${UUID}
  37 mkdir ${frzpath}/${UUID}
  38
  39 # Check that the fs is readable
  40 for p in ${mempath} ${frzpath} ${cpupath}; do
  41         find ${p} > /dev/null
  42         echo 1 > ${p}/${UUID}/tasks
  43 done
  44
  45 # set values though lxcfs
  46 echo $((64*1024*1024)) > ${LXCFSDIR}/cgroup/memory/${initmemory}/${UUID}/memory.limit_in_bytes
  47 echo 0 > ${LXCFSDIR}/cgroup/cpuset/${initcpuset}/${UUID}/cpuset.cpus
  48
  49 # and verify them through cgroupfs
  50 v=`cat $mempath/${UUID}/memory.limit_in_bytes`
  51 [ "$v" = "$((64*1024*1024))" ]
  52 v=`cat ${cpupath}/${UUID}/cpuset.cpus`
  53 [ "$v" = "0" ]
  54
  55 PASS=1
  56 echo PASS