linux-kernel - [PATCH 4/6] selftests: cgroup: Make cg_create() use 0755 for permission instead of 0644

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Message-Id: <20211213191833.916632-5-tj@kernel.org>
Date:   Mon, 13 Dec 2021 09:18:31 -1000
From:   Tejun Heo <tj@...nel.org>
To:     torvalds@...uxfoundation.org, ebiederm@...ssion.com,
        mkoutny@...e.com, axboe@...nel.dk, keescook@...omium.org,
        oleg@...hat.com, peterz@...radead.org, tglx@...utronix.de,
        jnewsome@...project.org, legion@...nel.org, luto@...capital.net,
        jannh@...gle.com
Cc:     linux-kernel@...r.kernel.org, security@...nel.org,
        kernel-team@...com, Tejun Heo <tj@...nel.org>
Subject: [PATCH 4/6] selftests: cgroup: Make cg_create() use 0755 for permission instead of 0644

0644 is an odd perm to create a cgroup which is a directory. Use the regular
0755 instead. This is necessary for euid switching test case.

Signed-off-by: Tejun Heo <tj@...nel.org>
---
 tools/testing/selftests/cgroup/cgroup_util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index 623cec04ad42..0cf7e90c0052 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -221,7 +221,7 @@ int cg_find_unified_root(char *root, size_t len)
 
 int cg_create(const char *cgroup)
 {
-	return mkdir(cgroup, 0644);
+	return mkdir(cgroup, 0755);
 }
 
 int cg_wait_for_proc_count(const char *cgroup, int count)
-- 
2.34.1