page_evictable

Name:page_evictable - test whether a page is evictable*@page: the page to test* Test whether page is evictable--i

Proto:int page_evictable(struct page *page)

Type:int

Parameter:

Type	Parameter	Name
struct page *	page

4315

_read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other

4316

ret = Not mapping_unevictable(page_mapping(page)) && Not PageMlocked(page)

4317

_read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()

4318

Return ret

**Caller**
Name	Describe
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
shrink_active_list
check_move_unevictable_pages	heck_move_unevictable_pages - check pages for evictability and move to* appropriate zone lru list@pvec: pagevec with lru pages to check Checks pages for evictability, if an evictable page is in the unevictable
__putback_lru_fast_prepare	Prepare page for fast batched LRU putback via putback_lru_evictable_pagevec()* The fast path is available only for evictable pages with single mapping.* Then we can bypass the per-cpu pvec and get better performance.

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion