函数名称：get_pfnblock_flags_mask - Return the requested group of flags for the pageblock_nr_pages block of pages*@page: The page within the block of interest*@pfn: The target page frame number*@end_bitidx: The last bit of interest to retrieve*@mask: mask of bits
函数原型：static __always_inline unsigned long __get_pfnblock_flags_mask(struct page *page, unsigned long pfn, unsigned long end_bitidx, unsigned long mask)
返回类型：unsigned long
参数：
|
类型 | 参数 | 名称 |
|---|
| struct page * | page | |
| unsigned long | pfn | |
| unsigned long | end_bitidx | |
| unsigned long | mask | |