Commit 31381927 authored Mar 11, 2025 by Michal Koutný Committed by Tejun Heo Mar 11, 2025

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>

parent a0ab1453

kernel/cgroup/cpuset-v1.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -465,9 +465,11 @@ static int cpuset_write_u64(struct cgroup_subsys_state css, struct cftype cft,
		retval = cpuset_update_flag(CS_CPU_EXCLUSIVE, cs, val);
		break;
		case FILE_MEM_EXCLUSIVE:
		pr_info_once("cpuset.%s is deprecated\n", cft->name);
		retval = cpuset_update_flag(CS_MEM_EXCLUSIVE, cs, val);
		break;
		case FILE_MEM_HARDWALL:
		pr_info_once("cpuset.%s is deprecated\n", cft->name);
		retval = cpuset_update_flag(CS_MEM_HARDWALL, cs, val);
		break;
		case FILE_SCHED_LOAD_BALANCE: