[PATCH 11/13] fs/resctrl: use cred_ids_allow_move()

[Josef Bacik]

rdtgroup_task_write_permission() makes the comparisons of the cgroup v1
code, euid 0 included. Use the library.

No functional change.

Assisted-by: LLM
Signed-off-by: Josef Bacik <josef at toxicpanda.com>
---
 fs/resctrl/rdtgroup.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/resctrl/rdtgroup.c b/fs/resctrl/rdtgroup.c
index 5dcbb0a964e8..d032ea9ca8c6 100644
--- a/fs/resctrl/rdtgroup.c
+++ b/fs/resctrl/rdtgroup.c
@@ -732,9 +732,7 @@ static int rdtgroup_task_write_permission(struct task_struct *task,
 	 * Even if we're attaching all tasks in the thread group, we only
 	 * need to check permissions on one of them.
 	 */
-	if (!uid_eq(cred->euid, GLOBAL_ROOT_UID) &&
-	    !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->euid, tcred->suid)) {
+	if (!cred_ids_allow_move(cred, tcred)) {
 		rdt_last_cmd_printf("No permission to move task %d\n", task->pid);
 		ret = -EPERM;
 	}

-- 
2.55.0