try_to_free

函数名称：try_to_free_swap

函数原型：static inline int try_to_free_swap(struct page *page)

返回类型：int

参数：

类型	参数	名称
struct page *	page

**调用者**
名称	描述
__replace_page	__replace_page - replace page in vma by new page
shrink_page_list	shrink_page_list() returns the number of reclaimed pages
do_swap_page	We enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults), and pte mapped but not yet locked.* We return with pte unmapped and unlocked.* We return with the mmap_sem locked or unlocked in the same cases
madvise_free_pte_range
swap_writepage	We may have stale swap cache pages in memory: notice* them here and get rid of the unnecessary final write.

函数逻辑报告