Changes in Makefile

9f34c566 - selftests: cgroup: Add basic tests for pids controller

Tue, 21 May 2024 09:21:30 +0000

selftests: cgroup: Add basic tests for pids controllerThis commit adds (and wires in) new test program for checking basic pidscontroller functionality -- restricting tasks in a cgroup and correctevent counting.Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

70559685 - selftests: cgroup: Lexicographic order in Makefile

Tue, 21 May 2024 09:21:29 +0000

selftests: cgroup: Lexicographic order in MakefileThis will reduce number of conflicts when modifying the lists.Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

812c5945 - cgroup/cpuset: Add test_cpuset_v1_hp.sh

Thu, 04 Apr 2024 13:47:49 +0000

cgroup/cpuset: Add test_cpuset_v1_hp.shAdd a simple test to verify that an empty v1 cpuset will force its tasksto be moved to an ancestor node. It is based on the test case documentedin commit 76bb5ab8f6e3 ("cpuset: break kernfs active protection incpuset_write_resmask()").Signed-off-by: Waiman Long Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

c0dddb7a - selftests: add a selftest to verify hugetlb usage in memcg

Fri, 06 Oct 2023 18:46:29 +0000

selftests: add a selftest to verify hugetlb usage in memcgThis patch add a new kselftest to demonstrate and verify the new hugetlbmemcg accounting behavior.Link: https://lkml.kernel.org/r/20231006184629.155543-5-nphamcs@gmail.comSigned-off-by: Nhat Pham Cc: Frank van der Linden Cc: Johannes Weiner Cc: Michal Hocko Cc: Mike Kravetz Cc: Muchun Song Cc: Rik van Riel Cc: Roman Gushchin Cc: Shakeel Butt Cc: Shuah Khan Cc: Tejun heo Cc: Yosry Ahmed Cc: Zefan Li Signed-off-by: Andrew Morton List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

fe3b1bf1 - selftests: cgroup: add test_zswap program

Wed, 21 Jun 2023 15:35:46 +0000

selftests: cgroup: add test_zswap programPatch series "selftests: cgroup: add zswap test program".This series adds 2 zswap related selftests that verify known and fixedissues. A new dedicated test program (test_zswap) is proposed since thetest cases are specific to zswap and hosts specific helpers.The first patch adds the (empty) test program, while the other 2 add anactual test function each.This patch (of 3):Add empty cgroup-zswap self test scaffold program, test functions to beadded in the next commits.Link: https://lkml.kernel.org/r/20230621153548.428093-1-cerasuolodomenico@gmail.comLink: https://lkml.kernel.org/r/20230621153548.428093-2-cerasuolodomenico@gmail.comSigned-off-by: Domenico Cerasuolo Cc: Dan Streetman Cc: Johannes Weiner Cc: Michal Hocko Cc: Muchun Song Cc: Nhat Pham Cc: Rik van Riel Cc: Roman Gushchin Cc: Seth Jennings Cc: Shakeel Butt Cc: Shuah Khan Cc: Tejun Heo Cc: Vitaly Wool Cc: Zefan Li Signed-off-by: Andrew Morton List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

cd3c6f68 - selftests: cgroup: Add cpuset migrations testcase

Mon, 03 Jul 2023 17:27:41 +0000

selftests: cgroup: Add cpuset migrations testcaseAdd a separate testfile to verify treating permissions when tasks aremigrated on cgroup v2 hierarchy between cpuset cgroups.In accordance with v2 design, migration should be allowed based ondelegation boundaries (i.e. cgroup.procs permissions) and does notdepend on the migrated object (i.e. unprivileged process can migrateanother process (even privileged) as long as it remains in the originaldedicated scope).Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

a8c52eba - kselftest/cgroup: Add cpuset v2 partition root state test

Thu, 01 Sep 2022 20:57:45 +0000

kselftest/cgroup: Add cpuset v2 partition root state testAdd a test script test_cpuset_prs.sh with a helper program wait_inotifyfor exercising the cpuset v2 partition root state code.Signed-off-by: Waiman Long Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

820a4f88 - cgroup: Add new test_cpu.c test suite in cgroup selftests

Fri, 22 Apr 2022 17:33:49 +0000

cgroup: Add new test_cpu.c test suite in cgroup selftestsThe cgroup selftests suite currently contains tests that validate variousaspects of cgroup, such as validating the expected behavior for memorycontrollers, the expected behavior of cgroup.procs, etc. There are no teststhat validate the expected behavior of the cgroup cpu controller.This patch therefore adds a new test_cpu.c file that will contain cpucontroller testcases. The file currently only contains a single testcasethat validates creating nested cgroups with cgroup.subtree_controlincluding cpu. Future patches will add more sophisticated testcases thatvalidate functional aspects of the cpu controller.Signed-off-by: David Vernet Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

a738a4ce - selftests: cgroup: build error multiple outpt files

Fri, 05 Nov 2021 16:25:29 +0000

selftests: cgroup: build error multiple outpt filesWhen 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_memcontrolclang: error: cannot specify -o when generating multiple output filesmake[3]: *** [../lib.mk:146: .../builds/current/kselftest/cgroup/test_memcontrol] Error 1Rework to add the header files to LOCAL_HDRS before including ../lib.mk,since the dependency is evaluated in '$(OUTPUT)/%:%.c $(LOCAL_HDRS)' infile lib.mk.Suggested-by: Arnd Bergmann Signed-off-by: Anders Roxell Acked-by: Christian Brauner Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

85e3b86e - tests/cgroup: test cgroup.kill

Sat, 08 May 2021 12:15:42 +0000

tests/cgroup: test cgroup.killTest that the new cgroup.kill feature works as intended.Link: https://lore.kernel.org/r/20210503143922.3093755-5-brauner@kernel.orgCc: Shakeel Butt Cc: Tejun Heo Cc: cgroups@vger.kernel.orgAcked-by: Roman Gushchin Signed-off-by: Christian Brauner Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

933dc80e - kselftests: cgroup: add kernel memory accounting tests

Fri, 07 Aug 2020 06:21:30 +0000

kselftests: cgroup: add kernel memory accounting testsAdd some tests to cover the kernel memory accounting functionality. Theseare covering some issues (and changes) we had recently.1) A test which allocates a lot of negative dentries, checks memcg slab statistics, creates memory pressure by setting memory.max to some low value and checks that some number of slabs was reclaimed.2) A test which covers side effects of memcg destruction: it creates and destroys a large number of sub-cgroups, each containing a multi-threaded workload which allocates and releases some kernel memory. Then it checks that the charge ans memory.stats do add up on the parent level.3) A test which reads /proc/kpagecgroup and implicitly checks that it doesn't crash the system.4) A test which spawns a large number of threads and checks that the kernel stacks accounting works as expected.5) A test which checks that living charged slab objects are not preventing the memory cgroup from being released after being deleted by a user.Signed-off-by: Roman Gushchin Signed-off-by: Andrew Morton Cc: Christoph Lameter Cc: Johannes Weiner Cc: Michal Hocko Cc: Shakeel Butt Cc: Tejun Heo Cc: Vlastimil Babka Link: http://lkml.kernel.org/r/20200623174037.3951353-19-guro@fb.comSigned-off-by: Linus Torvalds List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

9bd5910d - selftests/cgroup: add tests for cloning into cgroups

Wed, 05 Feb 2020 13:26:23 +0000

selftests/cgroup: add tests for cloning into cgroupsExpand the cgroup test-suite to include tests for CLONE_INTO_CGROUP.This adds the following tests:- CLONE_INTO_CGROUP manages to clone a process directly into a correctly delegated cgroup- CLONE_INTO_CGROUP fails to clone a process into a cgroup that has been removed after we've opened an fd to it- CLONE_INTO_CGROUP fails to clone a process into an invalid domain cgroup- CLONE_INTO_CGROUP adheres to the no internal process constraint- CLONE_INTO_CGROUP works with the freezer featureCc: Tejun Heo Cc: Shuah Khan Cc: cgroups@vger.kernel.orgCc: linux-kselftest@vger.kernel.orgAcked-by: Roman Gushchin Signed-off-by: Christian Brauner Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

1a99fcc0 - selftests: cgroup: Run test_core under interfering stress

Fri, 04 Oct 2019 10:57:43 +0000

selftests: cgroup: Run test_core under interfering stresstest_core tests various cgroup creation/removal and task migrationpaths. Run the tests repeatedly with interfering noise (for lockdepchecks). Currently, forking noise and subsystem enabled/disabledswitching are the implemented noises.Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

11318989 - selftests: cgroup: Add task migration tests

Fri, 04 Oct 2019 10:57:42 +0000

selftests: cgroup: Add task migration testsAdd two new tests that verify that thread and threadgroup migrationswork as expected.Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

5313bfe4 - kselftests: cgroup: add freezer controller self-tests

Fri, 19 Apr 2019 17:03:06 +0000

kselftests: cgroup: add freezer controller self-testsThis patch implements 9 tests for the freezer controller forcgroup v2:1) a simple test, which aims to freeze and unfreeze a cgroup with 100processes2) a more complicated tree test, which creates a hierarchy of cgroups,puts some processes in some cgroups, and tries to freeze and unfreezedifferent parts of the subtree3) a forkbomb test: the test aims to freeze a forkbomb running in acgroup, kill all tasks in the cgroup and remove the cgroup withoutthe unfreezing.4) rmdir test: the test creates two nested cgroups, freezes the parentone, checks that the child can be successfully removed, and a newchild can be created5) migration tests: the test checks migration of a task betweenfrozen cgroups: from a frozen to a running, from a running to afrozen, and from a frozen to a frozen.6) ptrace test: the test checks that it's possible to attach toa process in a frozen cgroup, get some information and detach, andthe cgroup will remain frozen.7) stopped test: the test checks that it's possible to freeze a cgroupwith a stopped task8) ptraced test: the test checks that it's possible to freeze a cgroupwith a ptraced task9) vfork test: the test checks that it's possible to freeze a cgroupwith a parent process waiting for the child process in vfork()Expected output: $ ./test_freezer ok 1 test_cgfreezer_simple ok 2 test_cgfreezer_tree ok 3 test_cgfreezer_forkbomb ok 4 test_cgrreezer_rmdir ok 5 test_cgfreezer_migrate ok 6 test_cgfreezer_ptrace ok 7 test_cgfreezer_stopped ok 8 test_cgfreezer_ptraced ok 9 test_cgfreezer_vforkSigned-off-by: Roman Gushchin Signed-off-by: Tejun Heo Cc: Shuah Khan Cc: kernel-team@fb.comCc: linux-kselftest@vger.kernel.org List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

d863cb03 - Add cgroup core selftests

Wed, 18 Jul 2018 17:33:58 +0000

Add cgroup core selftestsThis commit adds tests for some of the core functionalitiesof cgroups v2.The commit adds tests for some core principles of croup V2 API:- test_cgcore_internal_process_constraint Tests internal process constraint. You can't add a pid to a domain parent if a controller is enabled.- test_cgcore_top_down_constraint_enable Tests that you can't enable a controller on a child if it's not enabled on the parent.- test_cgcore_top_down_constraint_disable Tests that you can't disable a controller on a parent if it's enabled in a child.- test_cgcore_no_internal_process_constraint_on_threads Tests that there's no internal process constrain on threaded cgroups. You can add threads/processes on a parent with a controller enabled.- test_cgcore_parent_becomes_threaded Tests that when a child becomes threaded the parent type becomes domain threaded.- test_cgcore_invalid_domain In a situation like: A (domain threaded) - B (threaded) - C (domain) it tests that C can't be used until it is turned into a threaded cgroup. The "cgroup.type" file will report "domain (invalid)" in these cases. Operations which fail due to invalid topology use EOPNOTSUPP as the errno.- test_cgcore_populated In a situation like: A(0) - B(0) - C(1) \ D(0) It tests that A, B and C's "populated" fields would be 1 while D's 0. It tests that after the one process in C is moved to root, A,B and C's "populated" fields would flip to "0" and file modified events will be generated on the "cgroup.events" files of both cgroups.Signed-off-by: Claudio Zumbo Cc: Shuah Khan Cc: Roman Gushchin Cc: Tejun Heo Cc: kernel-team@fb.comAcked-by: Tejun Heo Reviewed-by: Roman Gushchin Signed-off-by: Shuah Khan (Samsung OSG) List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile

84092dbc - selftests: cgroup: add memory controller self-tests

Fri, 11 May 2018 18:03:49 +0000

selftests: cgroup: add memory controller self-testsCgroups are used for controlling the physical resource distribution(memory, CPU, io, etc) and often are used as basic building blocksfor large distributed computing systems. Even small differencesin the actual behavior may lead to significant incidents.The codebase is under the active development, which will unlikelystop at any time soon. Also it's scattered over different kernelsubsystems, which makes regressions more probable.Given that, the lack of any tests is crying.This patch implements some basic tests for the memory controller,as well as a minimal required framework. It doesn't pretend for avery good coverage, but pretends to be a starting point.Hopefully, any following significant changes will include correspondingtests.Tests for CPU and io controllers, as well as cgroup coreare next in the todo list.Signed-off-by: Roman Gushchin Cc: Tejun Heo Cc: Shuah Khan Cc: Johannes Weiner Cc: Michal Hocko Cc: Mike Rapoport Cc: kernel-team@fb.comCc: linux-kselftest@vger.kernel.orgCc: linux-kernel@vger.kernel.orgAcked-by: Tejun Heo Signed-off-by: Shuah Khan (Samsung OSG) List of files: /linux-6.15/tools/testing/selftests/cgroup/Makefile