From: Waiman Long <longman@redhat.com>
To: "Tejun Heo" <tj@kernel.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Michal Koutný" <mkoutny@suse.com>
Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
Chen Ridong <chenridong@huawei.com>,
Gabriele Monaco <gmonaco@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Waiman Long <longman@redhat.com>,
Chen Ridong <chenridong@huaweicloud.com>
Subject: [cgroup/for-6.19 PATCH v3 1/5] cgroup/cpuset: Rename update_unbound_workqueue_cpumask() to update_isolation_cpumasks()
Date: Tue, 4 Nov 2025 23:38:44 -0500 [thread overview]
Message-ID: <20251105043848.382703-2-longman@redhat.com> (raw)
In-Reply-To: <20251105043848.382703-1-longman@redhat.com>
From: Gabriele Monaco <gmonaco@redhat.com>
update_unbound_workqueue_cpumask() updates unbound workqueues settings
when there's a change in isolated CPUs, but it can be used for other
subsystems requiring updated when isolated CPUs change.
Generalise the name to update_isolation_cpumasks() to prepare for other
functions unrelated to workqueues to be called in that spot.
[longman: Change the function name to update_isolation_cpumasks()]
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Reviewed-by: Chen Ridong <chenridong@huaweicloud.com>
---
kernel/cgroup/cpuset.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 7aef59ea9627..da770dac955e 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -1393,7 +1393,7 @@ static bool partition_xcpus_del(int old_prs, struct cpuset *parent,
return isolcpus_updated;
}
-static void update_unbound_workqueue_cpumask(bool isolcpus_updated)
+static void update_isolation_cpumasks(bool isolcpus_updated)
{
int ret;
@@ -1557,7 +1557,7 @@ static int remote_partition_enable(struct cpuset *cs, int new_prs,
list_add(&cs->remote_sibling, &remote_children);
cpumask_copy(cs->effective_xcpus, tmp->new_cpus);
spin_unlock_irq(&callback_lock);
- update_unbound_workqueue_cpumask(isolcpus_updated);
+ update_isolation_cpumasks(isolcpus_updated);
cpuset_force_rebuild();
cs->prs_err = 0;
@@ -1598,7 +1598,7 @@ static void remote_partition_disable(struct cpuset *cs, struct tmpmasks *tmp)
compute_excpus(cs, cs->effective_xcpus);
reset_partition_data(cs);
spin_unlock_irq(&callback_lock);
- update_unbound_workqueue_cpumask(isolcpus_updated);
+ update_isolation_cpumasks(isolcpus_updated);
cpuset_force_rebuild();
/*
@@ -1667,7 +1667,7 @@ static void remote_cpus_update(struct cpuset *cs, struct cpumask *xcpus,
if (xcpus)
cpumask_copy(cs->exclusive_cpus, xcpus);
spin_unlock_irq(&callback_lock);
- update_unbound_workqueue_cpumask(isolcpus_updated);
+ update_isolation_cpumasks(isolcpus_updated);
if (adding || deleting)
cpuset_force_rebuild();
@@ -2011,7 +2011,7 @@ static int update_parent_effective_cpumask(struct cpuset *cs, int cmd,
tmp->delmask);
spin_unlock_irq(&callback_lock);
- update_unbound_workqueue_cpumask(isolcpus_updated);
+ update_isolation_cpumasks(isolcpus_updated);
if ((old_prs != new_prs) && (cmd == partcmd_update))
update_partition_exclusive_flag(cs, new_prs);
@@ -3029,7 +3029,7 @@ static int update_prstate(struct cpuset *cs, int new_prs)
else if (isolcpus_updated)
isolated_cpus_update(old_prs, new_prs, cs->effective_xcpus);
spin_unlock_irq(&callback_lock);
- update_unbound_workqueue_cpumask(isolcpus_updated);
+ update_isolation_cpumasks(isolcpus_updated);
/* Force update if switching back to member & update effective_xcpus */
update_cpumasks_hier(cs, &tmpmask, !new_prs);
--
2.51.1
next prev parent reply other threads:[~2025-11-05 4:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-05 4:38 [cgroup/for-6.19 PATCH v3 0/5] cgroup/cpuset: Additional housekeeping check & cleanup Waiman Long
2025-11-05 4:38 ` Waiman Long [this message]
2025-11-05 4:38 ` [cgroup/for-6.19 PATCH v3 2/5] cgroup/cpuset: Fail if isolated and nohz_full don't leave any housekeeping Waiman Long
2025-11-05 7:06 ` Chen Ridong
2025-11-05 4:38 ` [cgroup/for-6.19 PATCH v3 3/5] cgroup/cpuset: Move up prstate_housekeeping_conflict() helper Waiman Long
2025-11-05 6:18 ` Chen Ridong
2025-11-05 4:38 ` [cgroup/for-6.19 PATCH v3 4/5] cgroup/cpuset: Ensure domain isolated CPUs stay in root or isolated partition Waiman Long
2025-11-05 6:29 ` Chen Ridong
2025-11-05 4:38 ` [cgroup/for-6.19 PATCH v3 5/5] cgroup/cpuset: Globally track isolated_cpus update Waiman Long
2025-11-05 17:07 ` [PATCH v3 0/5] cgroup/cpuset: Additional housekeeping check & cleanup Tejun Heo
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