Re: [PATCH v3 1/2] mm/vmscan: Skip memcg with !usage in shrink_node_memcgs()

nux/kernel/git/tj/cgroup.git for-next patch link: https://lore.kernel.org/r/20250406024010.1177927-2-longman%40redhat.com patch subject: [PATCH v3 1/2] mm/vmscan: Skip memcg with !usage in shrink_node_memcgs() config: arm-randconfig-001-20250406 (https://download.01.org/0day-ci/archiv

Re: [PATCH v3 1/2] mm/vmscan: Skip memcg with !usage in shrink_node_memcgs()

nux/kernel/git/tj/cgroup.git for-next patch link: https://lore.kernel.org/r/20250406024010.1177927-2-longman%40redhat.com patch subject: [PATCH v3 1/2] mm/vmscan: Skip memcg with !usage in shrink_node_memcgs() config: arc-randconfig-002-20250406 (https://download.01.org/0day-ci/archiv

[PATCH v3 1/2] mm/vmscan: Skip memcg with !usage in shrink_node_memcgs()

The test_memcontrol selftest consistently fails its test_memcg_low sub-test due to the fact that two of its test child cgroups which have a memmory.low of 0 or an effective memory.low of 0 still have low events generated for them since mem_cgroup_below_low() use the ">=" operator when comparing to