hmm_range

函数名称：hmm_range_fault - try to fault some address in a virtual address range*@range: range being faulted*@flags: HMM_FAULT_* flags* Return: the number of valid pages in range->pfns[] (from range start* address), which may be zero

函数原型：long hmm_range_fault(struct hmm_range *range, unsigned int flags)

返回类型：long

参数：

类型	参数	名称
struct hmm_range *	range
unsigned int	flags

670

struct hmm_vma_walk hmm_vma_walk = {range = range, last = start, flags = flags, }

675

mm等于mm

678

lockdep_assert_held( & mmap_sem)

680

循环

682

如果mmu_interval_check_retry - Test if a collision has occurred* This can be used in the critical section between mmu_interval_read_begin()* and mmu_interval_read_retry()则返回:负EBUSY

685

ret等于walk_page_range - walk page table with caller specific callbacks*@mm: mm_struct representing the target process of page table walk*@start: start address of the virtual address range*@end: end address of the virtual address range*@ops: operation to call

687

当ret恒等于负EBUSY 循环

689

如果ret则返回:ret

691

返回:last减start右移PAGE_SHIFT determines the page size 位

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