remap_vmalloc_range

函数名称：map_vmalloc_range_partial - map vmalloc pages to userspace*@vma: vma to cover*@uaddr: target user address to start at*@kaddr: virtual address of vmalloc kernel memory*@size: size of map area* Returns: 0 for success, -Exxx on failure* This function checks

函数原型：int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr, void *kaddr, unsigned long size)

返回类型：int

参数：

类型	参数	名称
struct vm_area_struct *	vma
unsigned long	uaddr
void *	kaddr
unsigned long	size

3065

size等于 align the pointer to the (next) page boundary (size)

3067

如果非st whether an address (unsigned long or pointer) is aligned to PAGE_SIZE (uaddr)或非st whether an address (unsigned long or pointer) is aligned to PAGE_SIZE (kaddr)则返回:负EINVAL

3070

area等于d_vm_area - find a continuous kernel virtual area*@addr: base address* Search for the kernel VM area starting at @addr, and return it

3071

如果非area则返回:负EINVAL

3074

如果非flags按位与suitable for remap_vmalloc_range 按位或dma_alloc_coherent 的值的值则返回:负EINVAL

3077

如果kaddr加size大于addr加Lowlevel-APIs (not for driver use!)则返回:负EINVAL

3080

循环

3081

page等于Walk a vmap address to the struct page it maps.

3084

ret等于vm_insert_page - insert single page into user vma*@vma: user vma to map to*@addr: target user address of this page*@page: source kernel page* This allows drivers to insert individual pages they've allocated* into a user vma.

3085

如果ret则返回:ret

3088

uaddr加等于PAGE_SIZE

3089

kaddr加等于PAGE_SIZE

3090

size减等于PAGE_SIZE

3091

当size大于0循环

3093

Flags, see mm.h. 或等于Cannot expand with mremap() 按位或Do not include in the core dump

3095

返回:0

**调用者**
名称	描述
remap_vmalloc_range	map_vmalloc_range - map vmalloc pages to userspace@vma: vma to cover (map full range of vma)@addr: vmalloc memory@pgoff: number of pages into addr before first page to map Returns: 0 for success, -Exxx on failure* This function checks that addr is a

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