page_anon_vma

Name:page_anon_vma

Proto:struct anon_vma *page_anon_vma(struct page *page)

Type:struct anon_vma

Parameter:

Type	Parameter	Name
struct page *	page

651

page = compound_head(page)

652

mapping = See page-flags.h for PAGE_MAPPING_FLAGS

653

If (mapping & PAGE_MAPPING_FLAGS) != On an anonymous page mapped into a user virtual memory area,* page->mapping points to its anon_vma, not to a struct address_space;* with the PAGE_MAPPING_ANON bit set to distinguish it Then Return NULL

655

Return __page_rmapping(page)

**Caller**
Name	Describe
page_address_in_vma	At what user virtual address is page expected in vma?* Caller should check the page is actually part of the vma.
__page_check_anon_rmap	__page_check_anon_rmap - sanity check anonymous rmap addition@page: the page to add the mapping to@vma: the vm area in which the mapping is added*@address: the user virtual address mapped
rmap_walk_anon_lock
rmap_walk_anon	map_walk_anon - do something to anonymous page using the object-based* rmap method@page: the page to be handled@rwc: control variable according to each walk type* Find all the mappings of a page using the mapping pointer and the vma chains
ksm_might_need_to_copy

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