change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/block/blk-sysfs.c
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..
@@ -726,6 +726,8 @@
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 {
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 	struct request_queue *q = container_of(rcu_head, struct request_queue,
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 					       rcu_head);
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+
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+	percpu_ref_exit(&q->q_usage_counter);
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 	kmem_cache_free(blk_requestq_cachep, q);
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 }
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