put_page_testzero

Name:Drop a ref, return true if the refcount fell to zero (the page has no users)

Proto:static inline int put_page_testzero(struct page *page)

Type:int

Parameter:

Type	Parameter	Name
struct page *	page

592

VM_BUG_ON_PAGE(page_ref_count(page) == 0, page)

593

Return page_ref_dec_and_test(page)

**Caller**
Name	Describe
release_pages	lease_pages - batched put_page()@pages: array of pages to release@nr: number of pages* Decrement the reference count on all the pages in @pages. If it* fell to zero, remove the page from the LRU and free it.
shrink_page_list	shrink_page_list() returns the number of reclaimed pages
move_pages_to_lru	This moves pages from @list to corresponding LRU list.* We move them the other way if the page is referenced by one or more* processes, from rmap.* If the pages are mostly unmapped, the processing is fast and it is
__free_pages
page_frag_free	Frees a page fragment allocated out of either a compound or order 0 page.
gather_surplus_pages	Increase the hugetlb pool such that it can accommodate a reservation* of size 'delta'.
io_mem_free

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