Function report |
Source Code:mm\memory-failure.c |
Create Date:2022-07-28 16:18:27 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:dev_pagemap_mapping_shift
Proto:static unsigned long dev_pagemap_mapping_shift(struct page *page, struct vm_area_struct *vma)
Type:unsigned long
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct page * | page | |
| struct vm_area_struct * | vma |
| 267 | address = vma_address(page, vma) |
| 275 | If Not pgd_present( * pgd) Then Return 0 |
| 277 | p4d = p4d_offset(pgd, address) |
| 278 | If Not p4d_present( * p4d) Then Return 0 |
| 280 | pud = pud_offset(p4d, address) |
| 281 | If Not pud_present( * pud) Then Return 0 |
| 283 | If pud_devmap( * pud) Then Return PUD_SHIFT |
| 285 | pmd = pmd_offset(pud, address) |
| 286 | If Not pmd_present( * pmd) Then Return 0 |
| 288 | If pmd_devmap( * pmd) Then Return PMD_SHIFT |
| 290 | pte = pte_offset_map(pmd, address) |
| 291 | If Not pte_present( * pte) Then Return 0 |
| 293 | If pte_devmap( * pte) Then Return PAGE_SHIFT determines the page size |
| 295 | Return 0 |
| Name | Describe |
|---|---|
| add_to_kill | Schedule a process for later kill.* Uses GFP_ATOMIC allocations to avoid potential recursions in the VM. |
| Source code conversion tool public plug-in interface | X |
|---|---|
| Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |