函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq.c Create Date:2022-07-27 18:43:46
Last Modify:2020-03-17 23:18:05 Copyright©Brick
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函数名称：lk_mq_quiesce_queue() - wait until all ongoing dispatches have finished*@q: request queue

函数原型：void blk_mq_quiesce_queue(struct request_queue *q)

返回类型：void

参数：

类型参数名称
struct request_queue *q
222  bool rcu = false
224  FIXME: replace the scsi_internal_device_*block_nowait() calls in the* mpt3sas driver such that this function can be removed.
227  如果@flags: BLK_MQ_F_* flags. Defines the behaviour of the queue. 按位与BLK_MQ_F_BLOCKING则synchronize_srcu - wait for prior SRCU read-side critical-section completion*@ssp: srcu_struct with which to synchronize
229  否则rcu = true
232  如果rcu则synchronize_rcu - wait until a grace period has elapsed
调用者
名称描述
elevator_switchswitch to new_e io scheduler. be careful not to introduce deadlocks -* we don't free the old io scheduler, before we have allocated what we* need for the new one. this way we have a chance of going back to the old
queue_wb_lat_store
blk_mq_update_nr_requests