Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\pgtable.h Create Date:2022-07-28 06:00:13
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:pte_same

Proto:static inline int pte_same(pte_t a, pte_t b)

Type:int

Parameter:

TypeParameterName
pte_ta
pte_tb
727  Return pte == pte
Caller
NameDescribe
follow_pfn_pte
cow_user_page
wp_page_copyHandle the case of a page which we actually need to copy to a new page.* Called with mmap_sem locked and the old page referenced, but* without the ptl held.* High level logic flow:* - Allocate a page, copy the content of the old page to the new one.
finish_mkwrite_faultsh_mkwrite_fault - finish page fault for a shared mapping, making PTE* writeable once the page is prepared*@vmf: structure describing the fault* This function handles all that is needed to finish a write page fault in a
do_wp_pageThis routine handles present pages, when users try to write* to a shared page. It is done by copying the page to a new address* and decrementing the shared-page counter for the old page.* Note that this routine assumes that the protection checks have been
do_swap_pageWe enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults), and pte mapped but not yet locked.* We return with pte unmapped and unlocked.* We return with the mmap_sem locked or unlocked in the same cases
do_numa_page
handle_pte_faultThese routines also need to handle stuff like marking pages dirty* and/or accessed for architectures that don't do it in hardware (most* RISC architectures)
pte_same_as_swp
hugetlb_cowHugetlb_cow() should be called with page lock of the original hugepage held.* Called with hugetlb_instantiation_mutex held and pte_page locked so we* cannot race with other handlers or page migration.
hugetlb_fault
replace_pageplace_page - replace page in vma by new ksm page*@vma: vma that holds the pte pointing to page*@page: the page we are replacing by kpage*@kpage: the ksm page we replace page by*@orig_pte: the original value of the pte