The patch titled
Subject: cgroup: kselftest: relax fs_spec checks
has been added to the -mm tree. Its filename is
cgroup-kselftest-relax-fs_spec-checks.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/cgroup-kselftest-relax-fs_spec-checks.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/cgroup-kselftest-relax-fs_spec-checks.patch
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------------------------------------------------------
From: Chris Down <chris@xxxxxxxxxxxxxx>
Subject: cgroup: kselftest: relax fs_spec checks
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.
Link: http://lkml.kernel.org/r/20190723210737.GA487@xxxxxxxxxxxxxx
Signed-off-by: Chris Down <chris@xxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/cgroup/cgroup_util.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/tools/testing/selftests/cgroup/cgroup_util.c~cgroup-kselftest-relax-fs_spec-checks
+++ a/tools/testing/selftests/cgroup/cgroup_util.c
@@ -191,8 +191,7 @@ int cg_find_unified_root(char *root, siz
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;
}
_
Patches currently in -mm which might be from chris@xxxxxxxxxxxxxx are
cgroup-kselftest-relax-fs_spec-checks.patch
mm-throttle-allocators-when-failing-reclaim-over-memoryhigh.patch
mm-proportional-memorylowmin-reclaim.patch
mm-make-memoryemin-the-baseline-for-utilisation-determination.patch
mm-make-memoryemin-the-baseline-for-utilisation-determination-fix.patch
