diff options
| author | Robert Richter <robert.richter@amd.com> | 2009-06-10 23:47:10 +0400 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2009-06-10 23:47:10 +0400 |
| commit | 0886751c5d8b19fcee2e65d34ae21c9111e652a9 (patch) | |
| tree | 015e8c2b3d44d46e9e8fccd016340c51bc876d3b /mm/mmzone.c | |
| parent | 7e4e0bd50e80df2fe5501f48f872448376cdd997 (diff) | |
| parent | 07a2039b8eb0af4ff464efd3dfd95de5c02648c6 (diff) | |
| download | linux-0886751c5d8b19fcee2e65d34ae21c9111e652a9.tar.xz | |
Merge commit 'v2.6.30' into oprofile/master
Diffstat (limited to 'mm/mmzone.c')
| -rw-r--r-- | mm/mmzone.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/mm/mmzone.c b/mm/mmzone.c index 16ce8b955dcf..f5b7d1760213 100644 --- a/mm/mmzone.c +++ b/mm/mmzone.c @@ -6,6 +6,7 @@ #include <linux/stddef.h> +#include <linux/mm.h> #include <linux/mmzone.h> #include <linux/module.h> @@ -72,3 +73,17 @@ struct zoneref *next_zones_zonelist(struct zoneref *z, *zone = zonelist_zone(z); return z; } + +#ifdef CONFIG_ARCH_HAS_HOLES_MEMORYMODEL +int memmap_valid_within(unsigned long pfn, + struct page *page, struct zone *zone) +{ + if (page_to_pfn(page) != pfn) + return 0; + + if (page_zone(page) != zone) + return 0; + + return 1; +} +#endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */ |