函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\vmalloc.c Create Date:2022-07-27 16:29:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：get_vm_area_caller

函数原型：struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags, const void *caller)

返回类型：struct vm_struct

参数：

类型参数名称
unsigned longsize
unsigned longflags
const void *caller
2159  返回:__get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END, NUMA_NO_NODE, GFP_KERNEL, caller)
调用者
名称描述
vmapvmap - map an array of pages into virtually contiguous space*@pages: array of page pointers*@count: number of pages to map*@flags: vm_area->flags*@prot: page protection for the mapping* Maps @count pages from @pages into contiguous kernel virtual* space
alloc_vm_areaalloc_vm_area - allocate a range of kernel address space*@size: size of the area*@ptes: returns the PTEs for the address space* Returns: NULL on failure, vm_struct on success* This function reserves a range of kernel address space, and
__dma_common_pages_remap