[PATCH] unify pfn_to_page: parisc pfn_to_page
PARISC can use generic funcs. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -25,23 +25,6 @@ extern struct node_map_data node_data[];
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pg_data_t *__pgdat = NODE_DATA(nid); \
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__pgdat->node_start_pfn + __pgdat->node_spanned_pages; \
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})
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#define node_localnr(pfn, nid) ((pfn) - node_start_pfn(nid))
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#define pfn_to_page(pfn) \
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({ \
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unsigned long __pfn = (pfn); \
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int __node = pfn_to_nid(__pfn); \
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&NODE_DATA(__node)->node_mem_map[node_localnr(__pfn,__node)]; \
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})
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#define page_to_pfn(pg) \
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({ \
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struct page *__page = pg; \
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struct zone *__zone = page_zone(__page); \
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BUG_ON(__zone == NULL); \
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(unsigned long)(__page - __zone->zone_mem_map) \
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+ __zone->zone_start_pfn; \
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})
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/* We have these possible memory map layouts:
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* Astro: 0-3.75, 67.75-68, 4-64
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@ -130,8 +130,6 @@ extern int npmem_ranges;
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#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
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#ifndef CONFIG_DISCONTIGMEM
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#define pfn_to_page(pfn) (mem_map + (pfn))
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#define page_to_pfn(page) ((unsigned long)((page) - mem_map))
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#define pfn_valid(pfn) ((pfn) < max_mapnr)
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#endif /* CONFIG_DISCONTIGMEM */
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@ -152,6 +150,7 @@ extern int npmem_ranges;
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#endif /* __KERNEL__ */
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#include <asm-generic/memory_model.h>
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#include <asm-generic/page.h>
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#endif /* _PARISC_PAGE_H */
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