bdev_file

函数名称：bdev_file_inode

函数原型：static struct inode *bdev_file_inode(struct file *file)

返回类型：struct inode

参数：

类型	参数	名称
struct file *	file

**调用者**
名称	描述
__blkdev_direct_IO_simple
__blkdev_direct_IO
block_llseek	private llseek:* for a block special file file_inode(file)->i_size is zero* so we compute the size by hand (just as in block_read/write above)
blkdev_fsync
blkdev_close
block_ioctl
blkdev_write_iter	Write data to the block device. Only intended for the block device itself* and the raw driver which basically is a fake block device.* Does not take i_mutex for the write and thus is not for general purpose* use.
blkdev_read_iter
blkdev_fallocate

函数逻辑报告