Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq.c Create Date:2022-07-28 17:10:23
Last Modify:2020-03-17 23:18:05 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:blk_mq_try_issue_list_directly

Proto:void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx, struct list_head *list)

Type:void

Parameter:

TypeParameterName
struct blk_mq_hw_ctx *hctx
struct list_head *list
1867  When Not list_empty - tests whether a list is empty*@head: the list to test. cycle
1869  rq = list_first_entry - get the first element from a list*@ptr: the list head to take the element from.*@type: the type of the struct this is embedded in.*@member: the name of the list_head within the struct.* Note, that list is expected to be not empty.(list, structrequest, queuelist)
1872  list_del_init - deletes entry from list and reinitialize it.*@entry: the element to delete from the list.
1873  ret = blk_mq_request_issue_directly(rq, list_empty - tests whether a list is empty*@head: the list to test.)
1874  If ret != BLK_STS_OK Then
1875  If ret == BLK_STS_RESOURCE || ret == BLK_STS_DEV_RESOURCE is returned from the driver to the block layer if* device related resources are unavailable, but the driver can guarantee* that the queue will be rerun in the future once resources become* available again Then
1881  blk_mq_end_request(rq, ret)
1890  If Not list_empty - tests whether a list is empty*@head: the list to test. && commit_rqs Then commit_rqs(hctx)
Caller
NameDescribe
blk_mq_sched_insert_requests