函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq-sysfs.c Create Date:2022-07-27 18:49:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：blk_mq_sysfs_register

函数原型：int blk_mq_sysfs_register(struct request_queue *q)

返回类型：int

参数：

类型参数名称
struct request_queue *q
368  ret等于0
370  mutex_lock( & sysfs_dir_lock)
371  如果非mq_sysfs_init_done则转到:unlock
375  ret等于blk_mq_register_hctx(hctx)
376  如果ret则退出
380  unlock :
381  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
383  返回:ret