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cgroup/cpuset-v1: Add deprecation messages to memory_migrate

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Memory migration (between cgroups) was given up in v2 due to performance
reasons of its implementation. Migration between NUMA nodes within one
memcg may still make sense to modify affinity at runtime though.

Signed-off-by: Michal Koutný <mkoutny@suse.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Michal Koutný 2025-03-11 13:36:23 +01:00 committed by Tejun Heo
parent 3138192792
commit db4dc20c11
1 changed files with 1 additions and 0 deletions
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kernel/cgroup/cpuset-v1.c
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@ -477,6 +477,7 @@ static int cpuset_write_u64(struct cgroup_subsys_state *css, struct cftype *cft,
retval = cpuset_update_flag(CS_SCHED_LOAD_BALANCE, cs, val);
break;
case FILE_MEMORY_MIGRATE:
pr_info_once("cpuset.%s is deprecated\n", cft->name);
retval = cpuset_update_flag(CS_MEMORY_MIGRATE, cs, val);
break;
case FILE_MEMORY_PRESSURE_ENABLED: