1BLK_ALLOC_QUEUE_NODE(9)          Block Devices         BLK_ALLOC_QUEUE_NODE(9)
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NAME

6       blk_alloc_queue_node - allocate a request queue
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SYNOPSIS

9       struct request_queue * blk_alloc_queue_node(gfp_t gfp_mask,
10                                                   int node_id,
11                                                   spinlock_t * lock);
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ARGUMENTS

14       gfp_mask
15           memory allocation flags
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17       node_id
18           NUMA node to allocate memory from
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20       lock
21           For legacy queues, pointer to a spinlock that will be used to e.g.
22           serialize calls to the legacy .request_fn callback. Ignored for
23           blk-mq request queues.
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NOTE

26       pass the queue lock as the third argument to this function instead of
27       setting the queue lock pointer explicitly to avoid triggering a
28       sporadic crash in the blkcg code. This function namely calls
29       blkcg_init_queue and the queue lock pointer must be set before
30       blkcg_init_queue is called.
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33Kernel Hackers Manual 3.10         June 2019           BLK_ALLOC_QUEUE_NODE(9)
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