put_swap

函数名称：put_swap_page

函数原型：static inline void put_swap_page(struct page *page, swp_entry_t swp)

返回类型：void

参数：

类型	参数	名称
struct page *	page
swp_entry_t	swp

**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.
add_to_swap	add_to_swap - allocate swap space for a page@page: page we want to move to swap Allocate swap space for the page and add the page to the* swap cache. Caller needs to hold the page lock.
delete_from_swap_cache	This must be called only on pages that have* been verified to be in the swap cache and locked.* It will never put the page into the free list,* the caller has a reference on the page.
__read_swap_cache_async

函数逻辑报告