| Function report | 
| Source Code: include\linux\mm.h | Create Date:2022-07-28 05:43:45 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:pmd_lock
Proto:static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd)
Type:spinlock_t
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| struct mm_struct * | mm | |
| pmd_t * | pmd | 
| 2030 | ptl = pmd_lockptr(mm, pmd) | 
| 2032 | Return ptl | 
| Name | Describe | 
|---|---|
| follow_pmd_mask | |
| __pte_alloc | |
| pte_alloc_one_map | |
| __follow_pte_pmd | |
| page_vma_mapped_walk | page_vma_mapped_walk - check if @pvmw->page is mapped in @pvmw->vma at*@pvmw->address*@pvmw: pointer to struct page_vma_mapped_walk. page, vma, address and flags* must be set. pmd, pte and ptl must be NULL.* Returns true if the page is mapped in the vma | 
| __do_huge_pmd_anonymous_page | |
| do_huge_pmd_anonymous_page | |
| insert_pfn_pmd | |
| copy_huge_pmd | |
| huge_pmd_set_accessed | |
| do_huge_pmd_wp_page_fallback | |
| do_huge_pmd_numa_page | NUMA hinting page fault entry point for trans huge pmds | 
| __pmd_trans_huge_lock | Returns page table lock pointer if a given pmd maps a thp, NULL otherwise.* Note that if it returns page table lock pointer, this routine returns without* unlocking page table lock. So callers must unlock it. | 
| __split_huge_pmd | |
| collapse_huge_page | 
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