unmap_page

函数名称：unmap_page_range

函数原型：void unmap_page_range(struct mmu_gather *tlb, struct vm_area_struct *vma, unsigned long addr, unsigned long end, struct zap_details *details)

返回类型：void

参数：

类型	参数	名称
struct mmu_gather *	tlb
struct vm_area_struct *	vma
unsigned long	addr
unsigned long	end
struct zap_details *	details

1248

BUG_ON(addr >= end)

1249

tlb_start_vma(tlb, vma)

1250

pgd等于a shortcut to get a pgd_t in a given mm(The address space we belong to. , addr)

1251

循环

1252

next等于When walking page tables, get the address of the next boundary,* or the end address of the range if that comes earlier. Although no* vma end wraps to 0, rounded up __boundary may wrap to 0 throughout.(addr, end)

1253

如果pgd_none_or_clear_bad(pgd)则继续下一循环

1255

next等于zap_p4d_range(tlb, vma, pgd, addr, next, details)

1256

当pgd自加, addr等于next, addr不等于end 循环

1257

tlb_end_vma(tlb, vma)

**调用者**
名称	描述
unmap_single_vma
__oom_reap_task_mm

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