linux-kernel - [PATCH 7/9] RFC cgroup/cpuset-v1: Add deprecation warnings to sched_relax_domain

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Message-ID: <20250304153801.597907-8-mkoutny@suse.com>
Date: Tue,  4 Mar 2025 16:37:59 +0100
From: Michal Koutný <mkoutny@...e.com>
To: cgroups@...r.kernel.org,
	linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Tejun Heo <tj@...nel.org>,
	Josef Bacik <josef@...icpanda.com>,
	Jens Axboe <axboe@...nel.dk>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Koutný <mkoutny@...e.com>,
	Waiman Long <longman@...hat.com>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
Subject: [PATCH 7/9] RFC cgroup/cpuset-v1: Add deprecation warnings to sched_relax_domain_level

This is not a properly hierarchical resource, it might be better
implemented based on a sched_attr.

Cc: Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
Signed-off-by: Michal Koutný <mkoutny@...e.com>
---
 kernel/cgroup/cpuset-v1.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/cgroup/cpuset-v1.c b/kernel/cgroup/cpuset-v1.c
index 6155d890f10a4..ada6fcdffe0b5 100644
--- a/kernel/cgroup/cpuset-v1.c
+++ b/kernel/cgroup/cpuset-v1.c
@@ -175,6 +175,7 @@ static int cpuset_write_s64(struct cgroup_subsys_state *css, struct cftype *cft,
 
 	switch (type) {
 	case FILE_SCHED_RELAX_DOMAIN_LEVEL:
+		pr_warn_once("cpuset.%s is deprecated\n", cft->name);
 		retval = update_relax_domain_level(cs, val);
 		break;
 	default:
-- 
2.48.1