[Devel] [PATCH RHEL10 COMMIT] selftests: ve_printk: initialize required cgroup parameters

[Konstantin Khorenko]

The commit is pushed to "branch-rh10-6.12.0-55.52.1.4.x.vz10-ovz" and will appear at git at bitbucket.org:openvz/vzkernel.git
after rh10-6.12.0-55.52.1.4.8.vz10
------>
commit b9a538a4bfbc6fe3523bae4d70fb6dcae19c9608
Author: Aleksei Oladko <aleksey.oladko at virtuozzo.com>
Date:   Tue Feb 17 15:56:10 2026 +0000

    selftests: ve_printk: initialize required cgroup parameters
    
    kselftest ve_printk may fail if vzctl is not installed on the host,
    as the required cgroup parameters are not initialized.
    
    Initialize the required cgroup parameters during test setup
    to make the test self-contained.
    
    https://virtuozzo.atlassian.net/browse/VSTOR-123251
    
    Signed-off-by: Aleksei Oladko <aleksey.oladko at virtuozzo.com>
    Reviewed-by: Pavel Tikhomirov <ptikhomirov at virtuozzo.com>
    
    Feature: fix selftests
---
 tools/testing/selftests/ve_printk/ve_printk_test.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/testing/selftests/ve_printk/ve_printk_test.c b/tools/testing/selftests/ve_printk/ve_printk_test.c
index d5733b9e4aaa0..2df672d75e006 100644
--- a/tools/testing/selftests/ve_printk/ve_printk_test.c
+++ b/tools/testing/selftests/ve_printk/ve_printk_test.c
@@ -102,6 +102,19 @@ FIXTURE_SETUP(ve_printk)
 
 	ASSERT_EQ(get_mount_path("cgroup2", NULL, self->cgv2_path, sizeof(self->cgv2_path)), 0);
 
+	snprintf(path, sizeof(path), "echo \"+cpuset +cpu +cpuacct +io +memory +hugetlb +pids +rdma +misc +ve\""
+				     " > %s/cgroup.subtree_control 2>/dev/null", self->cgv2_path);
+	ASSERT_EQ(system(path), 0);
+
+	snprintf(path, sizeof(path), "echo \"/ rx\" > %s/ve.default_sysfs_permissions 2>/dev/null", self->cgv2_path);
+	ASSERT_EQ(system(path), 0);
+
+	snprintf(path, sizeof(path), "echo \"fs rx\" > %s/ve.default_sysfs_permissions 2>/dev/null", self->cgv2_path);
+	ASSERT_EQ(system(path), 0);
+
+	snprintf(path, sizeof(path), "echo \"fs/cgroup rw\" > %s/ve.default_sysfs_permissions 2>/dev/null", self->cgv2_path);
+	ASSERT_EQ(system(path), 0);
+
 	self->ctid = CTID_MIN;
 	while (self->ctid < CTID_MAX) {
 		snprintf(path, sizeof(path), "%s/%d", self->cgv2_path, self->ctid);