Messages in this thread Patch in this message | | | From | Zqiang <> | Subject | [PATCH] workqueue: Create kworker only for boot CPU pool prior SMP initialization | Date | Thu, 31 Mar 2022 21:14:35 +0800 |
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The workqueue_init() is called before SMP initialization, which means only the boot CPU is online, just create kworker for boot CPU pool.
Signed-off-by: Zqiang <qiang1.zhang@intel.com> --- kernel/workqueue.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index abcc9a2ac319..3948babe02d5 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -6120,11 +6120,9 @@ void __init workqueue_init(void) mutex_unlock(&wq_pool_mutex); /* create the initial workers */ - for_each_online_cpu(cpu) { - for_each_cpu_worker_pool(pool, cpu) { - pool->flags &= ~POOL_DISASSOCIATED; - BUG_ON(!create_worker(pool)); - } + for_each_cpu_worker_pool(pool, smp_processor_id()) { + pool->flags &= ~POOL_DISASSOCIATED; + BUG_ON(!create_worker(pool)); } hash_for_each(unbound_pool_hash, bkt, pool, hash_node) -- 2.25.1
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