linux-toradex.git/tools/testing/selftests/cgroup, branch v5.18

selftests: memcg: test high limit for single entry allocation

2022-03-22T22:57:02+00:00

Test the enforcement of memory.high limit for large amount of memory
allocation within a single kernel entry.  There are valid use-cases
where the application can trigger large amount of memory allocation
within a single syscall e.g.  mlock() or mmap(MAP_POPULATE).

Make sure memory.high limit enforcement works for such use-cases.

Link: https://lkml.kernel.org/r/20220211064917.2028469-4-shakeelb@google.com
Signed-off-by: Shakeel Butt 
Reviewed-by: Roman Gushchin 
Cc: Roman Gushchin 
Cc: Chris Down 
Cc: Johannes Weiner 
Cc: Michal Hocko 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge tag 'linux-kselftest-next-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2022-01-10T20:08:12+00:00

Pull Kselftest update from Shuah Khan:
 "Fixes to build errors, false negatives, and several code cleanups,
  including the ARRAY_SIZE cleanup that removes 25+ duplicates
  ARRAY_SIZE defines from individual tests"

* tag 'linux-kselftest-next-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/vm: remove ARRAY_SIZE define from individual tests
  selftests/timens: remove ARRAY_SIZE define from individual tests
  selftests/sparc64: remove ARRAY_SIZE define from adi-test
  selftests/seccomp: remove ARRAY_SIZE define from seccomp_benchmark
  selftests/rseq: remove ARRAY_SIZE define from individual tests
  selftests/net: remove ARRAY_SIZE define from individual tests
  selftests/landlock: remove ARRAY_SIZE define from common.h
  selftests/ir: remove ARRAY_SIZE define from ir_loopback.c
  selftests/core: remove ARRAY_SIZE define from close_range_test.c
  selftests/cgroup: remove ARRAY_SIZE define from cgroup_util.h
  selftests/arm64: remove ARRAY_SIZE define from vec-syscfg.c
  tools: fix ARRAY_SIZE defines in tools and selftests hdrs
  selftests: cgroup: build error multiple outpt files
  selftests/move_mount_set_group remove unneeded conversion to bool
  selftests/mount: remove unneeded conversion to bool
  selftests: harness: avoid false negatives if test has no ASSERTs
  selftests/ftrace: make kprobe profile testcase description unique
  selftests: clone3: clone3: add case CLONE3_ARGS_NO_TEST
  selftests: timers: Remove unneeded semicolon
  kselftests: timers:Remove unneeded semicolon

selftests: cgroup: Test open-time cgroup namespace usage for migration checks

2022-01-06T21:02:29+00:00

When a task is writing to an fd opened by a different task, the perm check
should use the cgroup namespace of the latter task. Add a test for it.

Tested-by: Michal Koutný 
Signed-off-by: Tejun Heo

selftests: cgroup: Test open-time credential usage for migration checks

2022-01-06T21:02:29+00:00

When a task is writing to an fd opened by a different task, the perm check
should use the credentials of the latter task. Add a test for it.

Tested-by: Michal Koutný 
Signed-off-by: Tejun Heo

selftests: cgroup: Make cg_create() use 0755 for permission instead of 0644

2022-01-06T21:02:29+00:00

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.

Reviewed-by: Michal Koutný 
Signed-off-by: Tejun Heo

selftests/cgroup: remove ARRAY_SIZE define from cgroup_util.h

2021-12-11T00:50:31+00:00

ARRAY_SIZE is defined in several selftests. Remove definitions from
individual test files and include header file for the define instead.
ARRAY_SIZE define is added in a separate patch to prepare for this
change.

Remove ARRAY_SIZE from cgroup_util.h and pickup the one defined in
kselftest.h.

Signed-off-by: Shuah Khan

selftests: cgroup: build error multiple outpt files

2021-12-10T23:46:01+00:00

When building selftests/cgroup: with clang the following error are seen:

clang -Wall -pthread    test_memcontrol.c cgroup_util.c ../clone3/clone3_selftests.h  -o .../builds/current/kselftest/cgroup/test_memcontrol
clang: error: cannot specify -o when generating multiple output files
make[3]: *** [../lib.mk:146: .../builds/current/kselftest/cgroup/test_memcontrol] Error 1

Rework to add the header files to LOCAL_HDRS before including ../lib.mk,
since the dependency is evaluated in '$(OUTPUT)/%:%.c $(LOCAL_HDRS)' in
file lib.mk.

Suggested-by: Arnd Bergmann 
Signed-off-by: Anders Roxell 
Acked-by: Christian Brauner 
Signed-off-by: Shuah Khan

tests/cgroup: test cgroup.kill

2021-05-10T14:41:11+00:00

Test that the new cgroup.kill feature works as intended.

Link: https://lore.kernel.org/r/20210503143922.3093755-5-brauner@kernel.org
Cc: Shakeel Butt 
Cc: Tejun Heo 
Cc: cgroups@vger.kernel.org
Acked-by: Roman Gushchin 
Signed-off-by: Christian Brauner 
Signed-off-by: Tejun Heo

tests/cgroup: move cg_wait_for(), cg_prepare_for_wait()

2021-05-10T14:41:11+00:00

as they will be used by the tests for cgroup killing.

Link: https://lore.kernel.org/r/20210503143922.3093755-4-brauner@kernel.org
Cc: Tejun Heo 
Cc: cgroups@vger.kernel.org
Reviewed-by: Shakeel Butt 
Acked-by: Roman Gushchin 
Signed-off-by: Christian Brauner 
Signed-off-by: Tejun Heo

tests/cgroup: use cgroup.kill in cg_killall()

2021-05-10T14:41:10+00:00

If cgroup.kill file is supported make use of it.

Link: https://lore.kernel.org/r/20210503143922.3093755-3-brauner@kernel.org
Cc: Tejun Heo 
Cc: cgroups@vger.kernel.org
Reviewed-by: Shakeel Butt 
Acked-by: Roman Gushchin 
Signed-off-by: Christian Brauner 
Signed-off-by: Tejun Heo