Chuyi Zhou 8873080b88 workqueue: Initialize wq_isolated_cpumask in workqueue_init_early() ...

[ Upstream commit 261dce3d64 ]

Now when isolcpus is enabled via the cmdline, wq_isolated_cpumask does
not include these isolated CPUs, even wq_unbound_cpumask has already
excluded them. It is only when we successfully configure an isolate cpuset
partition that wq_isolated_cpumask gets overwritten by
workqueue_unbound_exclude_cpumask(), including both the cmdline-specified
isolated CPUs and the isolated CPUs within the cpuset partitions.

Fix this issue by initializing wq_isolated_cpumask properly in
workqueue_init_early().

Fixes: fe28f631fa ("workqueue: Add workqueue_unbound_exclude_cpumask() to exclude CPUs from wq_unbound_cpumask")
Signed-off-by: Chuyi Zhou <zhouchuyi@bytedance.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-06-27 11:11:42 +01:00

224 KiB

Raw Blame History

View Raw