函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\block_dev.c Create Date:2022-07-29 10:46:11
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：ioctl_by_bdev

函数原型：int ioctl_by_bdev(struct block_device *bdev, unsigned cmd, unsigned long arg)

返回类型：int

参数：

类型参数名称
struct block_device *bdev
unsignedcmd
unsigned longarg
2166  old_fs等于获取当前进程地址空间上限()
2167  设置寄存器值(fs)
2168  res等于blkdev_ioctl(bdev, 0, cmd, arg)
2169  设置寄存器值(fs)
2170  返回:res
调用者
名称描述
ibm_partitionThis is the main function, called by check.c