page_has_private

函数名称：页面私有占用

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

返回类型：int

参数：

类型	参数	名称
struct page *	page

854

返回:非非体系结构无关页的属性按位与PAGE_FLAGS_PRIVATE的值

**调用者**
名称	描述
read_cache_pages_invalidate_page	see if a page needs releasing upon read_cache_pages() failure* - the caller of read_cache_pages() may have set PG_private or PG_fscache* before calling, such as the NFS fs marking pages that are cached locally* on disk, thus we need to give the fs a
truncate_cleanup_page	If truncate cannot remove the fs-private metadata from the page, the page* becomes orphaned
invalidate_complete_page	This is for invalidate_mapping_pages(). That function can be called at* any time, and is not supposed to throw away dirty pages. But pages can* be marked dirty at any time too, so use remove_mapping which safely* discards clean, unused pages.
truncate_inode_pages_range	runcate_inode_pages_range - truncate range of pages specified by start & end byte offsets@mapping: mapping to truncate@lstart: offset from which to truncate@lend: offset to which to truncate (inclusive) Truncate the page cache, removing the pages that
invalidate_complete_page2	This is like invalidate_complete_page(), except it ignores the page's* refcount
is_page_cache_freeable
pageout	pageout is called by shrink_page_list() for each dirty page.* Calls ->writepage().
page_check_dirty_writeback	Check if a page is dirty or under writeback
shrink_page_list	shrink_page_list() returns the number of reclaimed pages
shrink_active_list
expected_page_refs
migrate_huge_page_move_mapping	The expected number of remaining references is the same as that* of migrate_page_move_mapping().
fallback_migrate_page	Default handling if a filesystem does not provide a migration function.
__unmap_and_move
truncate_error_page
page_cache_pipe_buf_steal	Attempt to steal a page from a pipe buffer. This should perhaps go into* a vm helper function, it's already simplified quite a bit by the* addition of remove_mapping(). If success is returned, the caller may
to_iomap_page
iomap_set_range_uptodate
iomap_migrate_page

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