函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\pgtable-generic.c Create Date:2022-07-27 16:24:20
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：pmdp_huge_clear_flush

函数原型：pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp)

返回类型：pmd_t

参数：

类型参数名称
struct vm_area_struct *vma
unsigned longaddress
pmd_t *pmdp
137  VM_BUG_ON(address & ~HPAGE_PMD_MASK)
138  VM_BUG_ON((pmd_present( * pmdp) && !pmd_trans_huge( * pmdp) && !pmd_devmap( * pmdp)) || !pmd_present( * pmdp))
140  pmd等于pmdp_huge_get_and_clear(The address space we belong to. , address, pmdp)
141  ARCHes with special requirements for evicting THP backing TLB entries can* implement this(vma, address, address + HPAGE_PMD_SIZE)
142  返回:pmd
调用者
名称描述
__split_huge_zero_page_pmd