*/
static inline int PageKsm(struct page *page)
{
- return ((unsigned long)page->mapping == PAGE_MAPPING_ANON);
+ return ((unsigned long)page->mapping & PAGE_MAPPING_FLAGS) ==
+ (PAGE_MAPPING_ANON | PAGE_MAPPING_KSM);
}
/*
static inline void page_add_ksm_rmap(struct page *page)
{
if (atomic_inc_and_test(&page->_mapcount)) {
- page->mapping = (void *) PAGE_MAPPING_ANON;
+ page->mapping = (void *) (PAGE_MAPPING_ANON | PAGE_MAPPING_KSM);
__inc_zone_page_state(page, NR_ANON_PAGES);
}
}