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shutils/cgroups: fix run_into support

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In the previous patch:
  cgroups: Mount cgroups controllers in devlib working dir
we changed the default mount point for devlib managed CGroups but forgot to
update the support for execution of a workload within a specified CGroup.

The run_into support is provide by a shutil script, which still has hardcoded
the old path (i.e. /sys/fs/cgroup/devlib_*). This patch fixes this by:
- resetting the default path to the Linux standard /sys/fs/cgroup
- use-sing the existing CGMOUNT env variable to specify which CGroups mount
  point to use

The cgroups::run_into is also updated to use the self.cgroup_root via
CGMOUNT when the shutils' script is called.
Moreover, an additional cgroups::run_into_cmd method is added which just
returns a properly formatted run_into shutils' call.

Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
This commit is contained in:
Patrick Bellasi
2016-11-29 10:02:57 +00:00
parent 68f7585ac2
commit b2ec957bf8
2 changed files with 13 additions and 5 deletions
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2
devlib/bin/scripts/shutils.in
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@@ -102,7 +102,7 @@ cgroups_get_attributes() {
cgroups_run_into() {
# Control groups mount point
CGMOUNT=${CGMOUNT:-/sys/fs/cgroup/devlib_*}
CGMOUNT=${CGMOUNT:-/sys/fs/cgroup}
# The control group we want to run into
CGP=${1}
shift 1