selftests/mm/hugetlb_reparenting_test.sh

24   CGROUP_ROOT=$(mount -t cgroup2 | head -1 | awk '{print $3}')
25   if [[ -z "$CGROUP_ROOT" ]]; then
26     CGROUP_ROOT=/dev/cgroup/memory
27     mount -t cgroup2 none $CGROUP_ROOT
30   echo "+hugetlb +memory" >$CGROUP_ROOT/cgroup.subtree_control
32   CGROUP_ROOT=$(mount -t cgroup | grep ",hugetlb" | awk '{print $3}')
33   if [[ -z "$CGROUP_ROOT" ]]; then
34     CGROUP_ROOT=/dev/cgroup/memory
35     mount -t cgroup memory,hugetlb $CGROUP_ROOT
56   rmdir "$CGROUP_ROOT"/a/b 2>/dev/null
57   rmdir "$CGROUP_ROOT"/a 2>/dev/null
58   rmdir "$CGROUP_ROOT"/test1 2>/dev/null
76   actual_a="$(cat "$CGROUP_ROOT"/a/memory.$usage_file)"
88   actual_a_hugetlb="$(cat "$CGROUP_ROOT"/a/hugetlb.${MB}MB.$usage_file)"
104   actual_b="$(cat "$CGROUP_ROOT"/a/b/memory.$usage_file)"
116   actual_b_hugetlb="$(cat "$CGROUP_ROOT"/a/b/hugetlb.${MB}MB.$usage_file)"
130   mkdir "$CGROUP_ROOT"/a
133     echo "+hugetlb +memory" >$CGROUP_ROOT/a/cgroup.subtree_control
135     echo 0 >$CGROUP_ROOT/a/cpuset.mems
136     echo 0 >$CGROUP_ROOT/a/cpuset.cpus
139   mkdir "$CGROUP_ROOT"/a/b
142     echo 0 >$CGROUP_ROOT/a/b/cpuset.mems
143     echo 0 >$CGROUP_ROOT/a/b/cpuset.cpus
156     echo $$ >$CGROUP_ROOT/$cgroup/cgroup.procs
158     echo 0 >$CGROUP_ROOT/$cgroup/cpuset.mems
159     echo 0 >$CGROUP_ROOT/$cgroup/cpuset.cpus
160     echo $$ >"$CGROUP_ROOT/$cgroup/tasks"
164     echo $$ >$CGROUP_ROOT/cgroup.procs
166     echo $$ >"$CGROUP_ROOT/tasks"
182 mkdir $CGROUP_ROOT/test1
188 rmdir $CGROUP_ROOT/test1
189 mkdir $CGROUP_ROOT/test1
214   rmdir "$CGROUP_ROOT"/a/b
239 rmdir "$CGROUP_ROOT"/a/b
253   umount $CGROUP_ROOT
254   rm -rf $CGROUP_ROOT