pack_pfns

函数名称：pack_pfns - Prepare PFNs for saving.*@bm: Memory bitmap.*@buf: Memory buffer to store the PFNs in.* PFNs corresponding to set bits in @bm are stored in the area of memory* pointed to by @buf (1 page at a time).

函数原型：static inline void pack_pfns(unsigned long *buf, struct memory_bitmap *bm)

返回类型：void

参数：

类型	参数	名称
unsigned long *	buf
struct memory_bitmap *	bm

2070

以j小于PAGE_SIZE除sizeof(long)循环

2071

buf[j]等于memory_bm_rtree_next_pfn - Find the next set bit in a memory bitmap.*@bm: Memory bitmap.* Starting from the last returned position this function searches for the next* set bit in @bm and returns the PFN represented by it. If no more bits are

2072

如果此条件成立可能性小(为编译器优化)(buf[j] == Data types related to memory bitmaps)则退出

2075

page_key_read(buf + j)

**调用者**
名称	描述
snapshot_read_next	snapshot_read_next - Get the address to read the next image page from.@handle: Snapshot handle to be used for the reading. On the first call, @handle should point to a zeroed snapshot_handle* structure

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