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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-03-27 01:15:55 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-27 08:44:47 -0800
commita0140c1d85637ee5f4ea7c78f066e3611a6a79dc (patch)
tree7a52892e57ff7a97a3aabf920891b68ca8bf578a /include/asm-generic/memory_model.h
parent0ecd702bcb924d5fb7f687e09986f688336ac896 (diff)
downloadop-kernel-dev-a0140c1d85637ee5f4ea7c78f066e3611a6a79dc.zip
op-kernel-dev-a0140c1d85637ee5f4ea7c78f066e3611a6a79dc.tar.gz
[PATCH] remove zone_mem_map
This patch removes zone_mem_map. pfn_to_page uses pgdat, page_to_pfn uses zone. page_to_pfn can use pgdat instead of zone, which is only one user of zone_mem_map. By modifing it, we can remove zone_mem_map. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Christoph Lameter <christoph@lameter.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-generic/memory_model.h')
-rw-r--r--include/asm-generic/memory_model.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index a7bb497..0cfb086 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -45,11 +45,11 @@ extern unsigned long page_to_pfn(struct page *page);
NODE_DATA(__nid)->node_mem_map + arch_local_page_offset(__pfn, __nid);\
})
-#define page_to_pfn(pg) \
-({ struct page *__pg = (pg); \
- struct zone *__zone = page_zone(__pg); \
- (unsigned long)(__pg - __zone->zone_mem_map) + \
- __zone->zone_start_pfn; \
+#define page_to_pfn(pg) \
+({ struct page *__pg = (pg); \
+ struct pglist_data *__pgdat = NODE_DATA(page_to_nid(__pg)); \
+ (unsigned long)(__pg - __pgdat->node_mem_map) + \
+ __pgdat->node_start_pfn; \
})
#elif defined(CONFIG_SPARSEMEM)
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