| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0-or-later |
| # Copyright (c) 2019 Petr Vorel <[email protected]> |
| # Copyright (c) 2018-2019 ARM Ltd. All Rights Reserved. |
| |
| . tst_test.sh |
| |
| # Find mountpoint to given subsystem |
| # get_cgroup_mountpoint SUBSYSTEM |
| # RETURN: 0 if mountpoint found, otherwise 1 |
| get_cgroup_mountpoint() |
| { |
| local subsystem=$1 |
| local mntpoint |
| |
| [ $# -eq 0 ] && tst_brk TBROK "get_cgroup_mountpoint: subsystem not defined" |
| |
| mntpoint=$(grep cgroup /proc/mounts | grep -w $subsystem | awk '{ print $2 }') |
| [ -z "$mntpoint" ] && return 1 |
| |
| echo $mntpoint |
| return 0 |
| } |
| |
| # Check if given subsystem is supported and enabled |
| # is_cgroup_subsystem_available_and_enabled SUBSYSTEM |
| # RETURN: 0 if subsystem supported and enabled, otherwise 1 |
| is_cgroup_subsystem_available_and_enabled() |
| { |
| local val |
| local subsystem=$1 |
| |
| [ $# -eq 0 ] && tst_brk TBROK "is_cgroup_subsystem_available_and_enabled: subsystem not defined" |
| |
| val=$(grep -w $subsystem /proc/cgroups | awk '{ print $4 }') |
| [ "$val" = "1" ] && return 0 |
| |
| return 1 |
| } |
