ABSENT_PAGES_IN_RANG(9) Memory Management in Linux ABSENT_PAGES_IN_RANG(9)NAMEabsent_pages_in_range - Return number of page frames in holes within a
unsigned long absent_pages_in_range(unsigned long start_pfn,
unsigned long end_pfn);
The start PFN to start searching for holes
The end PFN to stop searching for holes
It returns the number of pages frames in memory holes within a range.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 ABSENT_PAGES_IN_RANG(9)