From: Ridong Chen <ridong.chen@linux.dev>
To: Waiman Long <longman@redhat.com>, Tejun Heo <tj@kernel.org>,
Johannes Weiner <hannes@cmpxchg.org>,
"Michal Koutn?" <mkoutny@suse.com>
Cc: Guopeng Zhang <guopeng.zhang@linux.dev>,
Ridong Chen <ridong.chen@linux.dev>,
cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
Chen Ridong <chenridong@huawei.com>,
Ridong Chen <chenridong@xiaomi.com>
Subject: [RFC PATCH -v4 21/22] cpuset: remove prs_err clear when notify_partition_change
Date: Sun, 1 Nov 2026 19:42:05 +0800 [thread overview]
Message-ID: <20261101114206.2434398-22-ridong.chen@linux.dev> (raw)
In-Reply-To: <20261101114206.2434398-1-ridong.chen@linux.dev>
From: Chen Ridong <chenridong@huawei.com>
The prs_err should be properly set when partition state is set, it
doesn't have to be reset in notify_partition_change(), just remove it.
Signed-off-by: Chen Ridong <chenridong@huawei.com>
Signed-off-by: Ridong Chen <chenridong@xiaomi.com>
---
kernel/cgroup/cpuset.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 29bce718ef92..4fd8b0025a5a 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -262,10 +262,6 @@ static inline void notify_partition_change(struct cpuset *cs, int old_prs)
if (old_prs == cs->partition_root_state)
return;
cgroup_file_notify(&cs->partition_file);
-
- /* Reset prs_err if not invalid */
- if (is_partition_valid(cs))
- WRITE_ONCE(cs->prs_err, PERR_NONE);
}
/*
--
2.34.1
next prev parent reply other threads:[~2026-11-01 11:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-01 11:41 [RFC PATCH -v4 00/22] cpuset: rework local partition logic Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 01/22] cpuset: add early empty cpumask check in partition_xcpus_add/del Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 02/22] cpuset: settle isolation state when CPUs are given back to parent Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 03/22] cpuset: generalize the validate_partition() interface Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 04/22] cpuset: introduce partition_enable() Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 05/22] cpuset: introduce partition_disable() Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 06/22] cpuset: introduce partition_update() Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 07/22] cpuset: use partition_enable() for remote partition enablement Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 08/22] cpuset: use partition_disable() for remote partition disablement Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 09/22] cpuset: use partition_update() for remote partition update Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 10/22] cpuset: introduce local_partition_enable() Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 11/22] cpuset: introduce local_partition_disable() Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 12/22] cpuset: use local_partition_disable() to invalidate local partition Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 13/22] cpuset: introduce local_partition_update() Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 14/22] cpuset: remove update_parent_effective_cpumask Ridong Chen
2026-11-01 11:41 ` [RFC PATCH -v4 15/22] cpuset: remove redundant partition field updates Ridong Chen
2026-11-01 11:42 ` [RFC PATCH -v4 16/22] cpuset: simplify partition update logic for hotplug tasks Ridong Chen
2026-11-01 11:42 ` [RFC PATCH -v4 17/22] cpuset: use partition_disable for compute_partition_effective_cpumask Ridong Chen
2026-11-01 11:42 ` [RFC PATCH -v4 18/22] cpuset: use validate_local_partition in local_partition_enable Ridong Chen
2026-11-01 11:42 ` [RFC PATCH -v4 19/22] cpuset: introduce validate_remote_partition Ridong Chen
2026-11-01 11:42 ` [RFC PATCH -v4 20/22] cpuset: simplify the update_prstate() function Ridong Chen
2026-11-01 11:42 ` Ridong Chen [this message]
2026-11-01 11:42 ` [RFC PATCH -v4 22/22] cpuset: remove unnecessary validation in partition_cpus_change Ridong Chen
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