kselftests for memory.oom.group

Here is the third version of the patchset. Changes since the last patchset: - Updated commit message of first patch to clarify fixes - Add ack from Roman There should be no code changes since the last patchset. Let me know if any improvements can be made, and thanks for your time! -Jay

[PATCH v3 1/2] Fix cg_read_strcmp()

From: Jay Kamat Fix a couple issues with cg_read_strcmp(), to improve correctness of cgroup tests - Fix cg_read_strcmp() always returning 0 for empty "needle" strings. Previously, this function read to a size = 1 buffer when comparing against empty strings, which would lead to cg_read_strcmp() co

[PATCH v3 2/2] Add tests for memory.oom.group

From: Jay Kamat Add tests for memory.oom.group for the following cases: - Killing all processes in a leaf cgroup, but leaving the parent untouched - Killing all processes in a parent and leaf cgroup - Keeping processes marked by OOM_SCORE_ADJ_MIN alive when considered for being killed by the

kselftests for memory.oom.group

Here is an amended patch which fixes those issues. Please let me know if you see anything else that could be improved. Changes since the last patchset: - Use if statement to check for empty string in cgroup_util.c - Cleanup and return properly when failing to kill process in test_memcg_oom_gro

[PATCH 2/2] Add tests for memory.oom.group

From: Jay Kamat Add tests for memory.oom.group for the following cases: - Killing all processes in a leaf cgroup, but leaving the parent untouched - Killing all processes in a parent and leaf cgroup - Keeping processes marked by OOM_SCORE_ADJ_MIN alive when considered for being killed by the

[PATCH 1/2] Fix cg_read_strcmp()

From: Jay Kamat Fix a couple issues with cg_read_strcmp(), to improve correctness of cgroup tests - Fix cg_read_strcmp() always returning 0 for empty "needle" strings - Fix a memory leak in cg_read_strcmp() Fixes: 84092dbcf901 ("selftests: cgroup: add memory controller self-tests") Signed-off-b

kselftests for memory.oom.group

Hi Shuah, I wrote some tests for the new memory.oom.group feature in cgroups 2. In the process, I discovered a few small bugs in the cgroups tests, which I have fixed as well in a separate commit. This is my first ever patch to Linux, so let me know if you see any issues or improvements that can

[PATCH 2/2] Add tests for memory.oom.group

From: Jay Kamat Add tests for memory.oom.group for the following cases: - Killing all processes in a leaf cgroup, but leaving the parent untouched - Killing all processes in a parent and leaf cgroup - Keeping processes marked by OOM_SCORE_ADJ_MIN alive when considered for being killed by the

[PATCH 1/2] Fix cg_read_strcmp()

From: Jay Kamat Fix a couple issues with cg_read_strcmp(), to improve correctness of cgroup tests - Fix cg_read_strcmp() always returning 0 for empty "needle" strings - Fix a memory leak in cg_read_strcmp() Fixes: 84092dbcf901 ("selftests: cgroup: add memory controller self-tests") Signed-off-b