vunmap_page_range

函数名称：vunmap_page_range

函数原型：static void vunmap_page_range(unsigned long addr, unsigned long end)

返回类型：void

参数：

类型	参数	名称
unsigned long	addr
unsigned long	end

127

BUG_ON(addr >= end)

128

pgd等于a shortcut which implies the use of the kernel's pgd, instead* of a process's(addr)

129

130

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)

131

如果pgd_none_or_clear_bad(pgd)则继续下一循环

133

vunmap_p4d_range(pgd, addr, next)

134

当pgd自加, addr等于next, addr不等于end 循环

**调用者**
名称	描述
unmap_vmap_area	Clear the pagetable entries of a given vmap_area
vb_free
unmap_kernel_range_noflush	map_kernel_range_noflush - unmap kernel VM area@addr: start of the VM area to unmap@size: size of the VM area to unmap* Unmap PFN_UP(@size) pages at @addr. The VM area @addr and @size* specify should have been allocated using get_vm_area() and its
unmap_kernel_range	map_kernel_range - unmap kernel VM area and flush cache and TLB@addr: start of the VM area to unmap@size: size of the VM area to unmap* Similar to unmap_kernel_range_noflush() but flushes vcache before* the unmapping and tlb after.

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