Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\huge_memory.c Create Date:2022-07-28 16:02:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:split_huge_pmd_address

Proto:void split_huge_pmd_address(struct vm_area_struct *vma, unsigned long address, bool freeze, struct page *page)

Type:void

Parameter:

TypeParameterName
struct vm_area_struct *vma
unsigned longaddress
boolfreeze
struct page *page
2353  pgd = a shortcut to get a pgd_t in a given mm(The address space we belong to. , address)
2354  If Not pgd_present( * pgd) Then Return
2357  p4d = p4d_offset(pgd, address)
2358  If Not p4d_present( * p4d) Then Return
2361  pud = pud_offset(p4d, address)
2362  If Not pud_present( * pud) Then Return
2365  pmd = pmd_offset(pud, address)
2367  __split_huge_pmd(vma, pmd, address, freeze, page)
Caller
NameDescribe
vma_adjust_trans_huge