函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\genhd.c Create Date:2022-07-27 18:53:10
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：unregister_blkdev

函数原型：void unregister_blkdev(unsigned int major, const char *name)

返回类型：void

参数：

类型参数名称
unsigned intmajor
const char *name
421  struct blk_major_name * p = NULL
422  index等于dex in the above - for now: assume no multimajor ranges
424  mutex_lock( & block_class_lock)
425  以n循环如果major恒等于major则
427  退出
428  如果非n或字符串比较则
429  WARN_ON(1)
430  否则
431  p等于n
432  n等于next
434  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.
435  释放内存