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Subject[PATCH] workqueue: Create kworker only for boot CPU pool prior SMP initialization
Date
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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