diff options
| author | David S. Miller <davem@davemloft.net> | 2009-06-15 03:02:23 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-06-15 03:02:23 -0700 |
| commit | 9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch) | |
| tree | 8d104ec2a459346b99413b0b77421ca7b9936c1a /mm/mmzone.c | |
| parent | ca44d6e60f9de26281fda203f58b570e1748c015 (diff) | |
| parent | 45e3e1935e2857c54783291107d33323b3ef33c8 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/scsi/fcoe/fcoe.c
net/core/drop_monitor.c
net/core/net-traces.c
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 16ce8b955dc..f5b7d176021 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 */ |