diff mbox series

cgroup: kselftest: Relax fs_spec checks

Message ID 20190723210737.GA487@chrisdown.name (mailing list archive)
State New, archived
Headers show
Series cgroup: kselftest: Relax fs_spec checks | expand

Commit Message

Chris Down July 23, 2019, 9:07 p.m. UTC 
On my laptop most memcg kselftests were being skipped because it claimed
cgroup v2 hierarchy wasn't mounted, but this isn't correct. Instead, it
seems current systemd HEAD mounts it with the name "cgroup2" instead of
"cgroup":

    % grep cgroup /proc/mounts
    cgroup2 /sys/fs/cgroup cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate 0 0

I can't think of a reason to need to check fs_spec explicitly
since it's arbitrary, so we can just rely on fs_vfstype.

After these changes, `make TARGETS=cgroup kselftest` actually runs the
cgroup v2 tests in more cases.

Signed-off-by: Chris Down <chris@chrisdown.name>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: linux-kernel@vger.kernel.org
Cc: cgroups@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: kernel-team@fb.com
---
 tools/testing/selftests/cgroup/cgroup_util.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index 4c223266299a..bdb69599c4bd 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -191,8 +191,7 @@  int cg_find_unified_root(char *root, size_t len)
 		strtok(NULL, delim);
 		strtok(NULL, delim);
 
-		if (strcmp(fs, "cgroup") == 0 &&
-		    strcmp(type, "cgroup2") == 0) {
+		if (strcmp(type, "cgroup2") == 0) {
 			strncpy(root, mount, len);
 			return 0;
 		}