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authorMichal Koutný <mkoutny@suse.com>2025-03-11 13:36:23 +0100
committerTejun Heo <tj@kernel.org>2025-03-11 09:22:54 -1000
commitdb4dc20c1140ab56dc31a73c4b48a50fad7a5634 (patch)
treea0e936c737b9fffa6fcd47f1cdeac527fc4219a2
parent313819279289672ddf765331aca143d945ac19d5 (diff)
cgroup/cpuset-v1: Add deprecation messages to memory_migrate
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>
-rw-r--r--kernel/cgroup/cpuset-v1.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/cgroup/cpuset-v1.c b/kernel/cgroup/cpuset-v1.c
index 620e07ffd61f..a1bbbd345041 100644
--- a/kernel/cgroup/cpuset-v1.c
+++ b/kernel/cgroup/cpuset-v1.c
@@ -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: