unuse_pmd

函数名称：unuse_pmd_range

函数原型：static inline int unuse_pmd_range(struct vm_area_struct *vma, pud_t *pud, unsigned long addr, unsigned long end, unsigned int type, bool frontswap, unsigned long *fs_pages_to_unuse)

返回类型：int

参数：

类型	参数	名称
struct vm_area_struct *	vma
pud_t *	pud
unsigned long	addr
unsigned long	end
unsigned int	type
bool	frontswap
unsigned long *	fs_pages_to_unuse

1986

pmd等于pmd_offset(pud, addr)

1987

循环

1988

cond_resched()

1989

next等于pmd_addr_end(addr, end)

1990

如果This function is meant to be used by sites walking pagetables with* the mmap_sem hold in read mode to protect against MADV_DONTNEED and* transhuge page faults则继续下一循环

1992

ret等于unuse_pte_range(vma, pmd, addr, next, type, frontswap, fs_pages_to_unuse)

1994

如果ret则返回:ret

1996

当pmd自加, addr等于next, addr不等于end 循环

1997

返回:0

**调用者**
名称	描述
unuse_pud_range

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