page_ref_unfreeze

函数名称：page_ref_unfreeze

函数原型：static inline void page_ref_unfreeze(struct page *page, int count)

返回类型：void

参数：

类型	参数	名称
struct page *	page
int	count

175

VM_BUG_ON_PAGE(page_count(page) != 0, page)

176

VM_BUG_ON(count == 0)

178

atomic_set_release( & Usage count. *DO NOT USE DIRECTLY*. See page_ref.h , count)

179

如果page_ref_tracepoint_active(__tracepoint_page_ref_unfreeze)则__page_ref_unfreeze(page, count)

**调用者**
名称	描述
__remove_mapping	Same as remove_mapping, but if the page is removed from the mapping, it* gets returned with a refcount of 0.
remove_mapping	Attempt to detach a locked page from its ->mapping. If it is dirty or if* someone else has a ref on the page, abort and return 0. If it was* successfully detached, return 1. Assumes the caller has a single ref on* this page.
shrink_page_list	shrink_page_list() returns the number of reclaimed pages
reuse_ksm_page
migrate_page_move_mapping	Replace the page in the mapping.* The number of remaining references must be:* 1 for anonymous pages without a mapping* 2 for pages with a mapping* 3 for pages with a mapping and PagePrivate/PagePrivate2 set.
migrate_huge_page_move_mapping	The expected number of remaining references is the same as that* of migrate_page_move_mapping().
__split_huge_page_tail

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码