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cgroup/cpuset-v1: Add deprecation messages to mem_exclusive and mem_hardwall

The concept of exclusive memory affinity may require complex approaches
like with cpuset v2 cpu partitions. There is so far no implementation in
cpuset v2.
Specific kernel memory affinity may cause unintended (global)
bottlenecks like kmem limits.

Signed-off-by: Michal Koutný <mkoutny@suse.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

authored by

Michal Koutný and committed by
Tejun Heo 31381927 a0ab1453

+2
+2
kernel/cgroup/cpuset-v1.c
··· 465 465 retval = cpuset_update_flag(CS_CPU_EXCLUSIVE, cs, val); 466 466 break; 467 467 case FILE_MEM_EXCLUSIVE: 468 + pr_info_once("cpuset.%s is deprecated\n", cft->name); 468 469 retval = cpuset_update_flag(CS_MEM_EXCLUSIVE, cs, val); 469 470 break; 470 471 case FILE_MEM_HARDWALL: 472 + pr_info_once("cpuset.%s is deprecated\n", cft->name); 471 473 retval = cpuset_update_flag(CS_MEM_HARDWALL, cs, val); 472 474 break; 473 475 case FILE_SCHED_LOAD_BALANCE: