[PATCH 0/7] [RFC] Sizing zones and holes in an architecture independent manner V4

[KAMEZAWA Hiroyuki]

On Mon, 24 Apr 2006 21:20:09 +0100 (IST)
Mel Gorman <mel at csn.ul.ie> wrote:

> This is V4 of the patchset to size zones and memory holes in an
> architecture-independent manner.
> 

Could you add some documentation about 'how to use' your generic funcs ?
I think more archs can use your generic routine if well documented.

All initialization path can be written in following way ?
==
for_all_memory_region()
	add_active_range(nid, start, end)
free_area_init_nodes(max_dma, max_dma32, max_low_pfn, max_pfn);
==

And following functions are really needed ?
==
+extern void remove_all_active_ranges(void);
+extern void get_pfn_range_for_nid(unsigned int nid,
+			unsigned long *start_pfn, unsigned long *end_pfn);
+extern unsigned long find_min_pfn_with_active_regions(void);
+extern unsigned long find_max_pfn_with_active_regions(void);
+extern int early_pfn_to_nid(unsigned long pfn);
+extern void free_bootmem_with_active_regions(int nid,
+						unsigned long max_low_pfn);
+extern void sparse_memory_present_with_active_regions(int nid);
+extern unsigned long absent_pages_in_range(unsigned long start_pfn,
+						unsigned long end_pfn);

-Kame