Viktor Malik 19468ed514 selftests/bpf: Run cgroup1_hierarchy test in own mount namespace ... The cgroup1_hierarchy test uses setup_classid_environment to setup cgroupv1 environment. The problem is that the environment is set in /sys/fs/cgroup and therefore, if not run under an own mount namespace, effectively deletes all system cgroups: $ ls /sys/fs/cgroup | wc -l 27 $ sudo ./test_progs -t cgroup1_hierarchy #41/1 cgroup1_hierarchy/test_cgroup1_hierarchy:OK #41/2 cgroup1_hierarchy/test_root_cgid:OK #41/3 cgroup1_hierarchy/test_invalid_level:OK #41/4 cgroup1_hierarchy/test_invalid_cgid:OK #41/5 cgroup1_hierarchy/test_invalid_hid:OK #41/6 cgroup1_hierarchy/test_invalid_cgrp_name:OK #41/7 cgroup1_hierarchy/test_invalid_cgrp_name2:OK #41/8 cgroup1_hierarchy/test_sleepable_prog:OK #41 cgroup1_hierarchy:OK Summary: 1/8 PASSED, 0 SKIPPED, 0 FAILED $ ls /sys/fs/cgroup | wc -l 1 To avoid this, run setup_cgroup_environment first which will create an own mount namespace. This only affects the cgroupv1_hierarchy test as all other cgroup1 test progs already run setup_cgroup_environment prior to running setup_classid_environment. Also add a comment to the header of setup_classid_environment to warn against this invalid usage in future. Fixes: 360769233c ("selftests/bpf: Add selftests for cgroup1 hierarchy") Signed-off-by: Viktor Malik <vmalik@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20240429112311.402497-1-vmalik@redhat.com		2024-04-29 16:14:11 -07:00
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crypto/chacha20-s390
cxl	cxl: Consolidate dport access_coordinate ->hb_coord and ->sw_coord into ->coord	2024-04-08 08:25:21 -07:00
fault-injection
ktest	ktest: force $buildonly = 1 for 'make_warnings_file' test type	2024-03-15 12:36:19 -04:00
kunit	linux_kselftest-kunit-fixes-6.9-rc2	2024-03-29 15:35:12 -07:00
memblock
nvdimm
radix-tree
scatterlist
selftests	selftests/bpf: Run cgroup1_hierarchy test in own mount namespace	2024-04-29 16:14:11 -07:00
vsock