memcmp_pages

Name:memcmp_pages

Proto:int memcmp_pages(struct page *page1, struct page *page2)

Type:int

Parameter:

Type	Parameter	Name
struct page *	page1
struct page *	page2

907

addr1 = kmap_atomic(page1)

908

addr2 = kmap_atomic(page2)

909

ret = memcmp(addr1, addr2, PAGE_SIZE)

910

Prevent people trying to call kunmap_atomic() as if it were kunmap()* kunmap_atomic() should get the return value of kmap_atomic, not the page.(addr2)

911

Prevent people trying to call kunmap_atomic() as if it were kunmap()* kunmap_atomic() should get the return value of kmap_atomic, not the page.(addr1)

912

Return ret

**Caller**
Name	Describe
stable_tree_search	stable_tree_search - search for page inside the stable tree* This function checks if there is a page inside the stable tree* with identical content to the page that we are scanning right now
stable_tree_insert	stable_tree_insert - insert stable tree node pointing to new ksm page* into the stable tree.* This function returns the stable tree node just allocated on success,* NULL otherwise.
unstable_tree_search_insert	stable_tree_search_insert - search for identical page,* else insert rmap_item into the unstable tree.* This function searches for a page in the unstable tree identical to the* page currently being scanned; and if no identical page is found in the

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