v3:
- Take up Johannes' suggestion of just skip the !usage case and
fix test_memcontrol selftest to fix the rests of the min/low
failures.
v4:
- Add "#ifdef CONFIG_MEMCG" directives around shrink_node_memcgs() to
avoid compilation problem with !CONFIG_MEMCG configs.
The test_memcontrol selftest consistently fails its test_memcg_low
sub-test and sporadically fails its test_memcg_min sub-test. This
patchset fixes the test_memcg_min and test_memcg_low failures by
skipping the !usage case in shrink_node_memcgs() and adjust the
test_memcontrol selftest to fix other causes of the test failures.
Note that I decide not to use the suggested mem_cgroup_usage() call as
it is a real function call defined in mm/memcontrol.c to be used mainly
by cgroup v1 code.
Waiman Long (2):
mm/vmscan: Skip memcg with !usage in shrink_node_memcgs()
selftests: memcg: Increase error tolerance of child memory.current
check in test_memcg_protection()
mm/vmscan.c | 10 ++++++++++
tools/testing/selftests/cgroup/test_memcontrol.c | 11 ++++++++---
2 files changed, 18 insertions(+), 3 deletions(-)
--
2.48.1
