me_huge_page

函数名称：Huge pages. Needs work.* Issues:* - Error on hugepage is contained in hugepage unit (not in raw page unit.)* To narrow down kill region to one page, we need to break up pmd.

函数原型：static int me_huge_page(struct page *p, unsigned long pfn)

返回类型：int

参数：

类型	参数	名称
struct page *	p
unsigned long	pfn

771

res等于0

772

hpage等于compound_head(p)

775

如果非PageHuge() only returns true for hugetlbfs pages, but not for normal or* transparent huge pages. See the PageTransHuge() documentation for more* details.则返回:MF_DELAYED

778

mapping等于page_mapping(hpage)

779

如果mapping则

780

res等于truncate_error_page(hpage, pfn, mapping)

781

否则

782

lock_page - unlock a locked page*@page: the page* Unlocks the page and wakes up sleepers in ___wait_on_page_locked().* Also wakes sleepers in wait_on_page_writeback() because the wakeup* mechanism between PageLocked pages and PageWriteback pages is shared.

788

如果PageAnon(hpage)则Perform a free_page(), also freeing any swap cache associated with* this page if it is the last user of the page.

790

Dissolve a given free hugepage into free buddy pages. This function does* nothing for in-use hugepages and non-hugepages.* This function returns values like below:* -EBUSY: failed to dissolved free hugepages or the hugepage is in-use

791

res等于MF_RECOVERED

792

lock_page may only be called if we have the page's inode pinned.

795

返回:res

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

函数逻辑报告