Function report |
Source Code:block\blk-core.c |
Create Date:2022-07-28 16:59:35 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:lk_alloc_queue_node - allocate a request queue*@gfp_mask: memory allocation flags*@node_id: NUMA node to allocate memory from
Proto:struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
Type:struct request_queue
Parameter:
Type | Parameter | Name |
---|---|---|
gfp_t | gfp_mask | |
int | node_id |
486 | If Not q Then Return NULL |
489 | last_merge = NULL |
491 | * ida allocated id for this queue. Used to index queues from * ioctx. = ida_simple_get( & blk_queue_ida, 0, 0, gfp_mask) |
492 | If * ida allocated id for this queue. Used to index queues from * ioctx. < 0 Then Go to fail_q |
500 | If Not backing_dev_info Then Go to fail_split |
503 | stats = blk_alloc_queue_stats() |
504 | If Not stats Then Go to fail_stats |
509 | name = "block" |
515 | INIT_WORK( & timeout_work, blk_timeout_work) |
526 | mutex_init - initialize the mutex*@mutex: the mutex to be initialized* Initialize the mutex to unlocked state.* It is not allowed to initialize an already locked mutex.( & sysfs_lock) |
527 | mutex_init - initialize the mutex*@mutex: the mutex to be initialized* Initialize the mutex to unlocked state.* It is not allowed to initialize an already locked mutex.( & sysfs_dir_lock) |
530 | init_waitqueue_head( & mq_freeze_wq) |
542 | If blkcg_init_queue(q) Then Go to fail_ref |
545 | Return q |
547 | fail_ref : |
549 | fail_bdi : |
551 | fail_stats : |
552 | bdi_put(backing_dev_info) |
553 | fail_split : |
555 | fail_id : |
556 | ida_simple_remove( & blk_queue_ida, * ida allocated id for this queue. Used to index queues from * ioctx.) |
557 | fail_q : |
559 | Return NULL |
Name | Describe |
---|---|
blk_alloc_queue | |
blk_mq_init_queue |
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