readahead_gfp_mask

函数名称：readahead_gfp_mask

函数原型：static inline gfp_t readahead_gfp_mask(struct address_space *x)

返回类型：gfp_t

参数：

类型	参数	名称
struct address_space *	x

226

返回:mapping_gfp_mask(x)按位或__GFP_NORETRY按位或DOC: Action modifiers* Action modifiers* ~~~~~~~~~~~~~~~~* %__GFP_NOWARN suppresses allocation failure reports.* %__GFP_COMP address compound page metadata.* %__GFP_ZERO returns a zeroed page on success.

**调用者**
名称	描述
read_cache_pages	ad_cache_pages - populate an address space with some pages & start reads against them@mapping: the address_space@pages: The address of a list_head which contains the target pages. These* pages have their ->index populated and are otherwise uninitialised.
__do_page_cache_readahead	__do_page_cache_readahead() actually reads a chunk of disk. It allocates* the pages first, then submits them for I/O. This avoids the very bad* behaviour which would occur if page allocations are causing VM writeback.
do_mpage_readpage	This is the worker routine which does all the work of mapping the disk* blocks and constructs largest possible bios, submits them for IO if the* blocks are not contiguous on the disk
mpage_readpages	mpage_readpages - populate an address space with some pages & start reads against them@mapping: the address_space@pages: The address of a list_head which contains the target pages. These

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