blkdev_get_by

函数名称：lkdev_get_by_dev - open a block device by device number*@dev: device number of block device to open*@mode: FMODE_* mask*@holder: exclusive holder identifier* Open the blockdevice described by device number @dev. @mode and

函数原型：struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder)

返回类型：struct block_device

参数：

类型	参数	名称
dev_t	dev
fmode_t	mode
void *	holder

1835

bdev等于bdget(dev)

1836

如果非bdev则返回:错误号

1839

err等于lkdev_get - open a block device*@bdev: block_device to open*@mode: FMODE_* mask*@holder: exclusive holder identifier* Open @bdev with @mode. If @mode includes %FMODE_EXCL, @bdev is* open with exclusive access. Specifying %FMODE_EXCL with %NULL

1840

如果err则返回:错误号

1843

返回:bdev

**调用者**
名称	描述
swsusp_check	swsusp_check - Check for swsusp signature in the resume device

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告