blk_mangle

函数名称：lk_mangle_minor - scatter minor numbers apart*@minor: minor number to mangle* Scatter consecutively allocated @minor number apart if MANGLE_DEVT* is enabled. Mangling twice gives the original value.* RETURNS:* Mangled value.* CONTEXT:* Don't care.

函数原型：static int blk_mangle_minor(int minor)

返回类型：int

参数：

类型	参数	名称
int	minor

**调用者**
名称	描述
blk_alloc_devt	lk_alloc_devt - allocate a dev_t for a partition@part: partition to allocate dev_t for@devt: out parameter for resulting dev_t* Allocate a dev_t for block device
blk_free_devt	lk_free_devt - free a dev_t@devt: dev_t to free Free @devt which was allocated using blk_alloc_devt().* CONTEXT:* Might sleep.
blk_invalidate_devt	We invalidate devt by assigning NULL pointer for devt in idr.
get_gendisk	get_gendisk - get partitioning information for a given device@devt: device to get partitioning information for@partno: returned partition index* This function gets the structure containing partitioning* information for the given device @devt.

函数逻辑报告