Some testcases are not subsystem specific, So there's no need
to mount all subsystems at "cgroup/". Furthre more, if some
subsystem is already mounted, it would fail if we're trying
to mount all subsystems at a mountpoint.
This patch creates a hierarchy with no bound subsystems.

Signed-off-by: Gui Jianfeng <[email protected]>
---
diff --git a/testcases/kernel/controllers/cgroup/cgroup_regression_test.sh 
b/testcases/kernel/controllers/cgroup/cgroup_regression_test.sh
index 5527afc..878f91a 100755
--- a/testcases/kernel/controllers/cgroup/cgroup_regression_test.sh
+++ b/testcases/kernel/controllers/cgroup/cgroup_regression_test.sh
@@ -97,7 +97,7 @@ test_1()
        ./fork_processes &
        sleep 1
 
-       mount -t cgroup xxx cgroup/
+       mount -t cgroup -o none,name=foo cgroup cgroup/
        if [ $? -ne 0 ]; then
                tst_resm TFAIL "failed to mount cgroup filesystem"
                failed=1
@@ -124,7 +124,7 @@ test_1()
 #---------------------------------------------------------------------------
 test_2()
 {
-       mount -t cgroup xxx cgroup/
+       mount -t cgroup -o none,name=foo cgroup cgroup/
        if [ $? -ne 0 ]; then
                tst_resm TFAIL "Failed to mount cgroup filesystem"
                failed=1
@@ -220,7 +220,7 @@ test_4()
                return
        fi
 
-       mount -t cgroup xxx cgroup/
+       mount -t cgroup -o none,name=foo cgroup cgroup/
        mkdir cgroup/0
        rmdir cgroup/0
        umount cgroup/
@@ -360,7 +360,7 @@ test_7_1()
 
 test_7_2()
 {
-       mount -t cgroup xxx cgroup/
+       mount -t cgroup -o none,name=foo cgroup cgroup/
        if [ $? -ne 0 ]; then
                tst_resm TFAIL "failed to mount $subsys"
                failed=1
@@ -429,7 +429,7 @@ test_7()
 #---------------------------------------------------------------------------
 test_8()
 {
-       mount -t cgroup xxx cgroup/
+       mount -t cgroup -o none,name=foo cgroup cgroup/
        if [ $? -ne 0 ]; then
                tst_resm TFAIL "failed to mount cgroup filesystem"
                failed=1

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